TidePlanet

Today in Praia do Cumbuco there are high tides at 6:30 am (7.3 ft) and 6:46 pm (7.9 ft) and low tides at 12:13 am and 12:23 pm. Tide coefficient 86. Right now the tide is rising toward the high tide at 6:30 am. The sun rises at 5:12 am and sets at 5:26 pm: 12 h 14 min of daylight. The moon is 84% illuminated (waning gibbous) and rises at 9:04 pm. Major solunar periods run from 1:07 am to 3:07 am and from 1:40 pm to 3:40 pm. The next spring tides arrive from November 9 to 11. The sea is moderate, with 4.6 ft waves. There's a light breeze from the east (6 mph). Mainly clear, 79 °F.

Beach

Beach day in Praia do Cumbuco

Beach forecast, 7 days →

Is it a beach day?

8 good hours
7
Good beach day · 7 out of 10 6:00–11:00 am Also 12:00–5:00 pm
  • Sunny
  • Feels like 97 °F: hot
  • Onshore breeze (11 mph)
  • Water at 83 °F (very warm)
  • Rain (0.01 in)
  • Swim with care: 4.7 ft waves every 6 s

Today, hour by hour

  • Swimming Use care · 4.7 ft

    4.7 ft waves every 6 s: swim with care and stay where you can stand. Low rip current risk. Always follow the lifeguard's flags.

  • Water 84 °F

    Very warm: barely refreshing.

  • Sun & sunscreen UV 11 · SPF 50

    Max UV 11 (very high): SPF 50 sunscreen, reapplied every 2 hours. Seek shade 10:00 am–2:00 pm (very high UV).

  • Wind 11 mph

    Onshore breeze (11 mph).

  • Tide & sand 12:23 pm

    Low tide at 12:13 am and 12:23 pm: that's when there's the most sand. High tide at 6:30 am and 6:46 pm.

The best window, 6:00 am to 11:00 am, brings sunshine, beach weather, little wind and water at 83 °F, though with rain, some waves and very high UV. 12:00 pm to 5:00 pm can also work, with sunshine, little wind, water at 84 °F and low tide at 12:23 pm, though with intense heat, some waves and very high UV.

We don't have data on jellyfish, sargassum or beach closures: ask the lifeguard or check with the local beach authority. How it works · The next 7 days

About Praia do CumbucoThe beach

In Guagiru, 1.6 mi from the center. Tides, weather and sun in Guagiru →

Surface Sand
Length 5.3 mi
Facing Faces northeast
Water quality We don't have an official bathing water rating for this country: ask the lifeguard or check the town's website.
Amenities
  • Parking

Amenities from OpenStreetMap: some may be missing or out of date. See on OpenStreetMap · Fix on OpenStreetMap

Beaches near Praia do Cumbuco

Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors

Named beaches within 6.2 mi, nearest first. Amenities from OpenStreetMap: some may be missing or out of date. View on OpenStreetMap · Add or fix on OpenStreetMap

Beaches and amenities: © OpenStreetMap contributors (ODbL).

Fishing

Fishing in Praia do Cumbuco today

Fishing forecast, 7 days →

Best time to fish

Solunar activity today: medium
6
Average day · 6 out of 10 11:20 am–1:20 pm Also 5:30–7:30 am and 5:50–7:50 pm
  • Low tide at 12:23 pm
  • Steady pressure (29.88 inHg), light onshore wind (11 mph) and some swell (4.3 ft waves) to stir the water
  • Waning gibbous: a bit more activity than at the quarters
  • Highest tide coefficient today: 86 (average tides)

Your day at a glance

The best window, 11:20 am to 1:20 pm, combines the 12:23 pm low tide, a light onshore breeze and some swell. Also good from 5:30 am to 7:30 am, with the 6:30 am high tide, sunrise and some swell. Also good from 5:50 pm to 7:50 pm, with the 6:46 pm high tide, a light onshore breeze and some swell.

Species with the most records nearby: lane snapper, great barracuda, mutton snapper and yellowtail snapper. October is one of the months when these are seen most: mutton snapper. What you can catch

How it works · Next 7 days · Fishing rules

Tides

Tides in Praia do Cumbuco

Tides for 7 days →

Today's high and low tides

  • ▼ Low tide 12:13 am -0.4 ft
  • ▼ Low tide 12:23 pm 0.5 ft
  • ▲ High tide 6:46 pm 7.9 ft · coef. 81

↑ Rising The tide is rising. 4 h 47 min to high tide at 6:30 am.

Tide coefficient 86 for the 6:30 am high tide and 81 for the 6:46 pm high tide. Average coefficient. The water rises and falls 8.2 ft between the highest high and the lowest low: a large range for this place. 70 is an average tide here; 90 and above means spring tides; below 45, neap tides. What is the tide coefficient?

2026 extremes: the highest tide of the year is on December 25 (8.9 ft) and the lowest, on May 17 (-1.1 ft).

Semidiurnal: two high and two low tides a day, of similar height.

Heights above MLWS. Astronomical prediction: wind and air pressure can raise or lower the water by a few inches, and more in a storm. Not for navigation. MLWS

Tide coefficient and range in October

The biggest tides of the month came from October 26 to 27 (coefficient 98, 9.1 ft range). The smallest, on October 18 (coefficient 28, 3.2 ft).

Tide and solunar table · this week

Day Sun Tide 1Tide 2Tide 3Tide 4 Coef. Moon Major periods Activity
Today, Thu 29 5:12 am · 5:26 pm Low tide 12:13 am · -0.4 ft High tide 6:30 am · 7.3 ft Low tide 12:23 pm · 0.5 ft High tide 6:46 pm · 7.9 ft Coef. 86 84% Major periods 1:07 am · 1:40 pm Medium
Fri 30 5:12 am · 5:26 pm Low tide 1:05 am · 0.1 ft High tide 7:26 am · 6.8 ft Low tide 1:15 pm · 1.1 ft High tide 7:42 pm · 7.4 ft Coef. 74 75% Major periods 2:12 am · 2:44 pm Low
Sat 31 5:12 am · 5:26 pm Low tide 2:04 am · 0.6 ft High tide 8:30 am · 6.2 ft Low tide 2:16 pm · 1.7 ft High tide 8:48 pm · 6.9 ft Coef. 62 64% Major periods 3:14 am · 3:44 pm Medium
Sun 1 5:11 am · 5:26 pm Low tide 3:16 am · 1.2 ft High tide 9:46 am · 6.0 ft Low tide 3:33 pm · 2.1 ft High tide 10:06 pm · 6.6 ft Coef. 53 Last quarter Major periods 4:13 am · 4:40 pm Medium
Mon 2 5:11 am · 5:26 pm Low tide 4:41 am · 1.4 ft High tide 11:06 am · 6.0 ft Low tide 5:04 pm · 2.2 ft High tide 11:27 pm · 6.6 ft Coef. 53 42% Major periods 5:06 am · 5:31 pm Medium
Tue 3 5:11 am · 5:26 pm Low tide 5:59 am · 1.3 ft High tide 12:17 pm · 6.4 ft Low tide 6:21 pm · 1.8 ft — Coef. 57 31% Major periods 5:55 am · 6:19 pm Low
Wed 4 5:11 am · 5:26 pm High tide 12:39 am · 6.9 ft Low tide 6:58 am · 1.0 ft High tide 1:14 pm · 6.8 ft Low tide 7:19 pm · 1.4 ft Coef. 65 22% Major periods 6:41 am · 7:04 pm Low

▲ high tide · ▼ low tide · heights above MLWS. Major periods: start time; they last 2 hours. Activity: based on the moon phase and the solunar periods.

Where this tide comes from

B · Nearby station

Praia do Cumbuco has no station of its own, so we use the tide at Fortaleza (TICON-4), 19 mi away. On the open coast the difference is usually a few minutes and inches; inside estuaries, rivers and enclosed bays it can be much larger.

Station data attribution: Slackwater database (https://github.com/openwatersio/slackwater-database). Source: Hart-Davis, M., Dettmering, D., Seitz, F. (2025), TICON-4: TIdal CONstants based on GESLA-4 sea-level records, SEANOE, https://doi.org/10.17882/109129. Licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Modified: see https://github.com/openwatersio/slackwater-database#modifications-to-source-data

How we calculate the tide

Sea and waves

The sea at Praia do Cumbuco

7-day waves

Sea stateSea state: moderate

Moderate Douglas 4 · fresh breeze, Beaufort 5
Waves 4.6 ft · 6.0 s from the east-northeast (69°)
Swell 3.1 ft · 5.2 s from the east-northeast
Current 0.2 mph toward the WNW

The waves you may find

  • Most commonMost common2.3 ft
  • Significant4.6 ft
  • Highest expectedHighest9.5 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 9.5 ft. Before heading out, expect waves of up to 9.5 ft.

Wind on the coast and offshore

On the coast 6 mph E · gusts 17
Offshore (7.8 mi N)Offshore 20 mph E · gusts 26

Cross-onshore wind. The coast faces northeast and the wind comes in from the sea at an angle: a bit more surf at the shore and drift along the coast, toward land.

Cross-onshore Hourly wind →

Wave height, next 7 daysWaves, next 7 days

Waves stay much the same all week. The biggest waves arrive on Thursday 29: 4.7 ft with a period of 6 s, from the east-northeast (moderate).

Water temperature

Water temperature →
Water now83.5 °F
Today 83.5–83.8 °F air: 78 / 93 °F
Satellite (2 days ago) 83.1 °F measured 0.4 mi away

Water temperature changes how fish behave: in very cold or very warm water they feed less. The water is steady these days, with no sudden changes.

Water warmer than normal for late October (+3.1 °F).

Satellite: NASA MUR (JPL MUR MEaSUREs, PO.DAAC), doi:10.5067/GHGMR-4FJ04. Sources and licenses

Water temperature →

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 1:43 am (local time).

Surf

Surf in Praia do Cumbuco today

Surf hour by hour and 7 days →

Surf today

Poor
3
Poor · 3 out of 10 5:00–9:00 am 2.5–3.9 ft Also 5:00–5:47 pm
  • 2.5–3.9 ft surf at the shore, a fun size for most surfers
  • 3.1 ft swell at 5 s from the east-northeast, short: weak, messy waves
  • 2.8 ft wind swell at 4 s: messy waves
  • Light cross-shore wind (8 mph): a bit of chop
  • Rising tide (low tide at 12:23 pm)
Surf at the shore 2.5–3.9 ft average – sets
Swell 3.1 ft 5 s · ENE · 61 kJ
Wind 8 mph ESE · cross-shore
Water and wetsuit 83.5 °F Boardshorts
  • Light: First light 4:50 am · sunrise 5:12 am · sunset 5:26 pm · last light 5:47 pm
  • Tide: low 12:13 am (-0.4 ft), high 6:30 am (7.3 ft), low 12:23 pm (0.5 ft) and high 6:46 pm (7.9 ft). Every break has its own tide: some work at low tide and others at high tide. The tide doesn’t change the score here.
  • Water at 83.5 °F: boardshorts or a swimsuit and a rash guard.
  • Energy: 61 kJ · Low power

Today’s surf at a glance

The best window, 5:00 am to 9:00 am, has a good size, though with a short-period swell and wind swell. 5:00 pm to 5:47 pm can also work, with a good size, though with a short-period swell and wind swell.

An estimate for this stretch of coast, not for a specific break: every beach or reef works its own way (its tide, bottom and angle). Check it when you get there.

Follow the flags and the lifeguards, and don’t paddle out if the surf is above your level: this score is a guide, not a substitute for what you see when you get there.

How it’s calculated · Next 7 days

Diving

Diving in Praia do Cumbuco today

Diving and snorkeling, 7 days →

Diving and snorkeling today

Likely visibility: good
8
Good day · 8 out of 10 11:20 am–1:20 pm Also 5:40–7:10 am
  • Slack water around low tide (12:23 pm): little current from 12:00 pm to 12:50 pm
  • 4.3 ft waves: careful getting in and out
  • Light onshore wind (11 mph)
  • 0.3 mph current toward the northwest, weak (model)
  • Sun high: more light underwater
Swell 2.4 ft 5 s · from the ENE
Likely visibility Good Snorkeling: poor
Water and suit 83.5 °F Shorty or a rash guard
Current 0.3 mph toward the NW
  • Slack water today: low tide 12:13 am (11:50 pm–12:30 am), high tide 6:30 am (6:10–6:50 am), low tide 12:23 pm (12:00–12:50 pm) and high tide 6:46 pm (6:20–7:10 pm)
  • Likely visibility: good. Swell (up to 3.2 ft at 5 s) over the last few days has stirred up the water. Based on the last 24 hours of data.
  • Water at 83.5 °F: a shorty or a rash guard.
  • Snorkeling: better not, with these waves, wind or current.
  • Night dive: dark from 5:47 pm. Waning gibbous (84%), rising at 9:04 pm: a bright night.

Your diving day at a glance

The best window, 11:20 am to 1:20 pm, combines slack water at low tide, light wind, weak current and the sun high, though with waves. Also worth a look from 5:40 am to 7:10 am, with slack water at high tide, light wind and weak current, though with waves.

Slack water comes from the tide: in inlets, channels and between islands the water can keep running for an hour or two after. Ask the local dive shop.

Never dive alone and check with the local dive shop: this rating is a guide, not a substitute for a professional.

How it works · Next 7 days

Dive sites, wrecks and dive shops nearby

We have no dive sites, dive shops or wrecks on record within 12 mi of Praia do Cumbuco.

If you know one, you can add it to OpenStreetMap and it will show up here after the next update. Missing one? Add it to OpenStreetMap

Sites: © OpenStreetMap contributors (ODbL).

Weather

Weather in Praia do Cumbuco

14-day weather

Now in Praia do Cumbuco

Now 79 °F Mainly clear · feels like 87 °F · 78 / 93 °F
Low / high
78 / 93 °F
Rain
0.01 in · 39%
Clouds
40%
Humidity
85%
Dew pointDew point
74 °F
Visibility
15 mi
UV indexUV
0 · low
Air qualityAir
Fair · 25
Saharan dust
No

Pressure and fishing

  • ↗ RisingRising Anglers say fish bite less for a while
  • → SteadySteady Anglers expect normal activity
  • ↘ FallingFalling · now Anglers say fish feed more before the change

Falling now (−0.04 inHg in 3 hours). Over the next 48 hours: −0.06 inHg. Falling pressure: anglers say fish feed more before the change. Fast changes, either way, tend to affect fishing.

Today, hour by hourHour by hour

Bars: mean wind. Dashed line: gusts. Arrows point where the wind blows to.

Time 12:00 am3:00 am6:00 am9:00 am12:00 pm3:00 pm6:00 pm9:00 pm
Sky OvercastMainly clearClear skyClear skyLight drizzleClear skyClearMainly clear
Temperature 80°79°80°89°93°89°80°79°
Wind (mph) 7 E6 ESE8 ESE11 ESE11 E11 E8 ENE8 ENE
Gusts 2015192730282120
Waves 4.5 ft4.7 ft4.7 ft4.5 ft4.3 ft4.0 ft3.9 ft4.2 ft
Rain 0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in
  • 3:00 am 79° 6 ESE 4.7 ft
  • 6:00 am 80° 8 ESE 4.7 ft
  • 9:00 am 89° 11 ESE 4.5 ft
  • 12:00 pm 93° 11 E 4.3 ft
  • 3:00 pm 89° 11 E 4.0 ft
  • 6:00 pm 80° 8 ENE 3.9 ft
  • 9:00 pm 79° 8 ENE 4.2 ft
  • 12:00 am 79° 9 ENE 4.4 ft

Next 14 daysComing days

Day Sky Low / high Max wind Max wave High tides
Today · 29 Light drizzle 78 / 93 °F 11 mph E 4.7 ft 6:30 am · 6:46 pm
Fri 30 Light drizzle 77 / 91 °F 12 mph E 4.4 ft 7:26 am · 7:42 pm
Sat 31 Partly cloudy 76 / 93 °F 11 mph E 4.1 ft 8:30 am · 8:48 pm
Sun 1 Light drizzle 78 / 92 °F 12 mph E 4.3 ft 9:46 am · 10:06 pm
Mon 2 Overcast 79 / 92 °F 12 mph E 4.3 ft 11:06 am · 11:27 pm
Tue 3 Light drizzle 78 / 93 °F 12 mph E 4.6 ft 12:17 pm
Wed 4 Mainly clear 78 / 91 °F 12 mph E 4.7 ft 12:39 am · 1:14 pm
Thu 5 Mainly clear 77 / 90 °F 12 mph E 4.4 ft 1:36 am · 2:01 pm
Fri 6 Overcast 78 / 90 °F 12 mph E 4.3 ft 2:23 am · 2:41 pm
Sat 7 Mainly clear 77 / 92 °F 11 mph E 4.3 ft 3:05 am · 3:18 pm
Sun 8 Mainly clear 78 / 92 °F 11 mph E 4.3 ft 3:42 am · 3:53 pm
Mon 9 Mainly clear 78 / 90 °F 11 mph ENE 3.8 ft 4:18 am · 4:27 pm
Tue 10 Partly cloudy 79 / 92 °F 11 mph E 4.0 ft 4:54 am · 5:01 pm
Wed 11 Overcast 79 / 92 °F 13 mph E 4.7 ft 5:29 am · 5:36 pm
  • Fri 30 Light drizzle 77° / 91° 4.4 ft
  • Sat 31 Partly cloudy 76° / 93° 4.1 ft
  • Sun 1 Light drizzle 78° / 92° 4.3 ft
  • Mon 2 Overcast 79° / 92° 4.3 ft
  • Tue 3 Light drizzle 78° / 93° 4.6 ft
  • Wed 4 Mainly clear 78° / 91° 4.7 ft
  • Thu 5 Mainly clear 77° / 90° 4.4 ft
See all 14 days →

Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.

  • The models Partly agree · medium confidence: unsure about rain today. See the models →
  • Outlook Next few weeks, compared with normal: a bit warmer, normal rain and a slightly warmer sea. See the outlook →
  • Normal Today, warmer than normal for late October (+4.2 °F; normal high: 88 °F). Climate by month →

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 1:43 am (local time).

Sun

The sun in Praia do Cumbuco

Sunrise and sunset →

Sunrise and sunset

Rises 5:12 am in the ESE (104°)ESE
Sets 5:26 pm in the WSW (256°)WSW
  • First light 4:26 am
  • Full dark 6:12 pm
  • Civil dawn 4:50 am
  • Civil dusk 5:47 pm
  • Solar noon 11:19 am (80° high)
  • Daylight 12 h 14 min (+0 min)
  • Evening golden hour 4:57 pm
  • Full dark 6:12 pm

Golden hour and the day-night map

Morning golden hour5:12–5:40 am
Evening golden hour4:57–5:26 pm
Praia do Cumbuco

Today the sun is 92,332,951 mi away and looks 32′ 11″ across.

Moon and solunar

The moon in Praia do Cumbuco

The moon for 7 days →

Moon phase and position

Waning gibbous · 84% 84% illuminated · 19.0 days old New moon on Mon, Nov 9 · 4:03 am
Rises 9:04 pm in the ENE (62°)ENE
Sets 9:19 am tomorrow · in the WNW (297°) · set at 8:15 am
Transit 2:07 am overhead
Visible 12 h 15 min from 9:04 pm to 9:19 am

Today the moon is 226,718 mi away and looks 32′ 44″ across.

Solunar periods

Today's activity: medium
  • 1:07–3:07 am Major · the moon passes overhead · high activity
  • 1:40–3:40 pm Major · the moon passes underfoot · high activity
  • 7:45–8:45 am Minor · moonset · medium activity
  • 8:34–9:34 pm Minor · moonrise · medium activity

According to solunar theory, fish feed more when the moon passes overhead or underfoot (major periods, about 2 h) and when it rises or sets (minor periods, 1 h). It works best around new and full moon.

Upcoming moon phases

2026 moon calendar →
  • Last quarter Sun, Nov 1 · 5:29 pmNov 1 in 3 days
  • New moon Mon, Nov 9 · 4:03 amNov 9 in 11 days
  • First quarter Tue, Nov 17 · 8:48 amNov 17 in 19 days
  • Full moon Tue, Nov 24 · 11:54 amNov 24 in 26 days

Next perigee (the moon at its closest to Earth): November 25, 223,281 mi away.

Place

Where to fish in Praia do Cumbuco

All places in Ceará →

Piers, ramps and tackle shops nearby

Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors

Within 9.3 mi. A spot may be missing or closed. Open the map on OpenStreetMap · Missing one? Add it to OpenStreetMap

Spots: © OpenStreetMap contributors (ODbL) and Overture Maps.

Water depth

Gentle slope

The bottom slopes gently: 16 ft deep 0.4 mi from shore and 33 ft at 0.5 mi.

From the shoreline out to sea, heading northeast.

How far from shore

  • 16 ft deep0.4 mi
  • 33 ft deep0.5 mi
  • 66 ft deepnot within 3.1 mi
  • 164 ft deepnot within 3.1 mi

For fishing, swimming and diving

  • Shore fishing. Shallow, gradual bottom (16 ft at 0.4 mi): cast far from the beach and fish the high tide, when there is more water close in.
  • Swimming. A very gentle way in with plenty of shallow water, good for kids. At low tide the water can be far out.
  • Diving. 33 ft deep 0.5 mi from shore; 66 ft is far out (beyond 3.1 mi): for deeper dives, go by boat.

Rough estimate: here the data comes in cells of about 0.3 mi and misses details near shore (rocks, sandbars, small coves).

Source: NOAA ETOPO 2022 (CC0), cells of about 0.3 mi; depth below mean sea level. For reference only: not for navigation or anchoring.

Tides near Praia do CumbucoTides nearby

All places in Ceará, A to Z (119) →

Praia do Cumbuco at a glance

  • Beach. Coordinates: 3.613° S, 38.744° W.
  • It is 16 mi northwest of Fortaleza, the main place in Ceará. The sun rises 1 min later and sets 1 min later than in Fortaleza.
  • In Guagiru, 1.6 mi from the center.
  • The nearest tide station, Fortaleza, is 19 mi to the east.
  • Its coast faces northeast.
  • Beaches and harbors nearby: Cumbuco Beach (1.5 mi), Praia da Tabuba (4.0 mi).

Questions about Praia do CumbucoQuestions

Where is Praia do Cumbuco?

In Guagiru, 1.6 mi from the center, Ceará (Brazil). The shore faces northeast.

What amenities does Praia do Cumbuco have?

According to OpenStreetMap: parking. Some may be missing or out of date, so ask at the beach.

What time is high tide today in Praia do Cumbuco?

Today in Praia do Cumbuco there are high tides at 6:30 am (7.3 ft) and 6:46 pm (7.9 ft) and low tides at 12:13 am and 12:23 pm. Tide coefficient 86.

What time is sunset today in Praia do Cumbuco?

At 5:26 pm. There is light until the end of civil twilight, at 5:47 pm.

What time is sunrise tomorrow in Praia do Cumbuco?

At 5:12 am. First light comes at 4:25 am.

What phase is the moon today?

Waning gibbous, 84% illuminated. New moon on Mon, Nov 9 · 4:03 am.

When are the next spring tides?

From November 9 to 11.

What are today's solunar periods?

Major 1:07–3:07 am, Minor 7:45–8:45 am, Major 1:40–3:40 pm, Minor 8:34–9:34 pm. Today's activity is medium.

What's the weather like today in Praia do Cumbuco?

Light drizzle, from 78 °F to 93 °F, with a light breeze from the east (6 mph) and a 39% chance of rain.

How is the sea today in Praia do Cumbuco?

Moderate (Douglas 4): 4.6 ft waves with a period of 6.0 s from the east-northeast. The water is 83.5 °F.

When is the best time to visit Praia do Cumbuco?

The best time to visit Praia do Cumbuco is from August to November: highs of 87 °F to 89 °F, barely 1 rainy day a month and 8 hours of sunshine a day.

Can I use this data for navigation?

No. These are predictions for fishing and leisure; for navigation, use the official publications.

Where this data comes from

Tide: Fortaleza station, with constants from TICON-4 (Hart-Davis, Dettmering and Seitz, 2025, SEANOE), licensed CC BY 4.0, via Slackwater database (changes). Sun and moon: our own calculation with astronomy-engine. Places: GeoNames (CC BY 4.0). Coastline: © OpenStreetMap contributors (ODbL).

Spotted a mistake? Tell us · How we calculate the tide

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