TidePlanet

Today in Calhau there are high tides at 10:08 am (3.2 ft) and 10:20 pm (3.5 ft) and low tides at 4:02 am and 4:07 pm. Tide coefficient 94. Right now the tide is rising toward the high tide at 10:08 am. The sun rises at 6:36 am and sets at 6:10 pm: 11 h 34 min of daylight. The moon is 85% illuminated (waning gibbous) and rises at 9:20 pm. Major solunar periods run from 2:09 am to 4:09 am and from 2:42 pm to 4:42 pm. The next spring tides arrive from November 9 to 11. The sea is slight, with 3.1 ft waves. There's a moderate breeze from the north-northeast (16 mph). Clear, 80 °F.

Fishing

Fishing in Calhau today

Fishing forecast, 7 days →

Best time to fish

Solunar activity today: medium
8
Good day · 8 out of 10 3:10–4:40 pm Also 3:00–4:10 am and 9:30–10:30 am
  • Low tide at 4:07 pm
  • Major period 2:42–4:42 pm
  • Steady pressure (29.94 inHg), light onshore wind (10 mph) and some swell (3.0 ft waves) to stir the water
  • Waning gibbous: a bit more activity than at the quarters
  • Highest tide coefficient today: 94 (spring tides)

Your day at a glance

The best window, 3:10 pm to 4:40 pm, combines the 4:07 pm low tide, a major period, a light onshore breeze and some swell. Also worth a try from 3:00 am to 4:10 am, with the 4:02 am low tide, a major period and some swell, though with moderate wind. Also worth a try from 9:30 am to 10:30 am, with the 10:08 am high tide, moonset and some swell, though with moderate wind.

How it works · Next 7 days

Beach

Beach day in Calhau

Beach forecast, 7 days →

Is it a beach day?

6 good hours
7
Good beach day · 7 out of 10 1:00–6:00 pm
  • Sunny
  • Feels like 88 °F: beach weather
  • UV 7 (high): SPF 50 sunscreen
  • Water at 81 °F (warm)
  • Low tide at 4:07 pm: more sand
  • Moderate onshore wind (13 mph): choppy water

Today, hour by hour

  • Swimming Use care · 3.0 ft

    3.0 ft waves every 8 s: swim with care and stay where you can stand. Moderate rip current risk. Always follow the lifeguard's flags.

  • Water 81 °F

    Warm: very pleasant.

  • Sun & sunscreen UV 7 · SPF 50

    Max UV 7 (high): SPF 50 sunscreen, reapplied every 2 hours.

  • Wind 17 mph

    Moderate onshore wind (17 mph).

  • Tide & sand 4:07 pm

    Low tide at 4:02 am and 4:07 pm: that's when there's the most sand. High tide at 10:08 am and 10:20 pm. Coefficient 94 (spring tides): little sand left at high tide.

The best window, 1:00 pm to 6:00 pm, brings sunshine, beach weather, water at 81 °F and low tide at 4:07 pm, though with moderate wind and some waves.

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

Beaches near Calhau

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).

Tides

Tides in Calhau

Tides for 7 days →

Today's high and low tides

  • ▼ Low tide 4:02 am 0.4 ft
  • ▼ Low tide 4:07 pm 0.5 ft
  • ▲ High tide 10:20 pm 3.5 ft · coef. 89

↑ Rising The tide is rising. 5 h 54 min to high tide at 10:08 am.

Tide coefficient 94 for the 10:08 am high tide and 89 for the 10:20 pm high tide. Spring tides. The water rises and falls 3.1 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 August 14 (3.8 ft) and the lowest, on March 21 (0.2 ft).

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

Heights above chart datum: the lowest astronomical tide (LAT), the zero of nautical charts in Europe. Astronomical prediction: wind and air pressure can raise or lower the water by a few inches, and more in a storm. Not for navigation. chart datum (LAT)

Tide coefficient and range in October

The biggest tides of the month came from October 26 to 28 (coefficient 103, 3.2 ft range). The smallest, from October 19 to 20 (coefficient 31, 1.2 ft).

Tide and solunar table · this week

Day Sun Tide 1Tide 2Tide 3Tide 4 Coef. Moon Major periods Activity
Today, Thu 29 6:36 am · 6:10 pm Low tide 4:02 am · 0.4 ft High tide 10:08 am · 3.2 ft Low tide 4:07 pm · 0.5 ft High tide 10:20 pm · 3.5 ft Coef. 94 85% Major periods 2:09 am · 2:42 pm Medium
Fri 30 6:37 am · 6:09 pm Low tide 4:51 am · 0.5 ft High tide 10:56 am · 2.9 ft Low tide 4:48 pm · 0.8 ft High tide 11:12 pm · 3.4 ft Coef. 82 75% Major periods 3:14 am · 3:46 pm Medium
Sat 31 6:37 am · 6:09 pm Low tide 5:44 am · 0.8 ft High tide 11:51 am · 2.7 ft Low tide 5:35 pm · 1.0 ft — Coef. 68 65% Major periods 4:17 am · 4:46 pm Medium
Sun 1 6:37 am · 6:09 pm High tide 12:14 am · 3.2 ft Low tide 6:47 am · 1.0 ft High tide 12:59 pm · 2.5 ft Low tide 6:34 pm · 1.2 ft Coef. 61 Last quarter Major periods 5:15 am · 5:42 pm Medium
Mon 2 6:38 am · 6:08 pm High tide 1:28 am · 3.1 ft Low tide 8:04 am · 1.2 ft High tide 2:25 pm · 2.4 ft Low tide 7:53 pm · 1.4 ft Coef. 49 42% Major periods 6:09 am · 6:34 pm Medium
Tue 3 6:38 am · 6:08 pm High tide 2:49 am · 3.1 ft Low tide 9:34 am · 1.3 ft High tide 3:52 pm · 2.5 ft Low tide 9:27 pm · 1.4 ft Coef. 47 32% Major periods 6:58 am · 7:21 pm Medium
Wed 4 6:39 am · 6:07 pm High tide 4:05 am · 3.1 ft Low tide 10:51 am · 1.2 ft High tide 5:00 pm · 2.7 ft Low tide 10:46 pm · 1.3 ft Coef. 55 22% Major periods 7:44 am · 8:06 pm Low

▲ high tide · ▼ low tide · heights above chart datum (LAT). 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

Calhau has no station of its own, so we use the tide at Porto Grande (TICON-4), 7.7 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 Calhau

7-day waves

Sea stateSea state: slight

Slight Douglas 3 · moderate breeze, Beaufort 4
Waves 3.1 ft · 7.8 s from the northeast (45°)
Swell 1.8 ft · 7.3 s from the south
Current 0.9 mph toward the SSW

The waves you may find

  • Most commonMost common1.5 ft
  • Significant3.1 ft
  • Highest expectedHighest6.2 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 6.2 ft. Before heading out, expect waves of up to 6.2 ft.

Wind on the coast and offshore

On the coast 16 mph NNE · gusts 20

The model doesn't separate offshore wind here: it's the same as on the coast.

Cross-onshore wind. The coast faces east 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: 3.1 ft with a period of 8 s, from the northeast (slight).

Water temperature

Water temperature →
Water now80.8 °F
Today 80.8–81.0 °F air: 80 / 81 °F
Satellite (2 days ago) 80.1 °F measured 0.5 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 (+1.9 °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 4:14 am (local time).

Surf

Surf in Calhau today

Surf hour by hour and 7 days →

Surf today

Poor
0
Poor · 0 out of 10 12:00–4:00 pm 1.7–2.7 ft
  • 1.7–2.7 ft surf at the shore, a fun size for most surfers
  • 2.0 ft swell at 6 s from the east-northeast, short: weak, messy waves
  • Moderate onshore wind (13 mph): a bit of chop
  • Falling tide (low tide at 4:07 pm)
Surf at the shore 1.7–2.7 ft average – sets
Swell 2.0 ft 6 s · ENE · 32 kJ
Wind 13 mph NNE · onshore
Water and wetsuit 80.8 °F Boardshorts
  • Light: First light 6:14 am · sunrise 6:36 am · sunset 6:10 pm · last light 6:32 pm
  • Tide: low 4:02 am (0.4 ft), high 10:08 am (3.2 ft), low 4:07 pm (0.5 ft) and high 10:20 pm (3.5 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 80.8 °F: boardshorts or a swimsuit and a rash guard.
  • Energy: 32 kJ · Low power

Today’s surf at a glance

The best window, 12:00 pm to 4:00 pm, has a good size, though with a short-period swell and onshore wind.

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 Calhau today

Diving and snorkeling, 7 days →

Diving and snorkeling today

Likely visibility: good
8
Good day · 8 out of 10 3:00–5:00 pm Also 9:20–10:50 am
  • Slack water around low tide (4:07 pm): little current from 3:50 pm to 4:30 pm
  • 2.0 ft swell at 6 s from the northeast: some surge on the bottom
  • Light onshore wind (10 mph)
  • 0.8 mph current toward the southwest (model)
  • Daylight
Swell 2.0 ft 6 s · from the NE
Likely visibility Good Snorkeling: fair
Water and suit 80.8 °F Shorty or a rash guard
Current 0.8 mph toward the SW
  • Slack water today: low tide 4:02 am (3:40–4:20 am), high tide 10:08 am (9:40–10:30 am), low tide 4:07 pm (3:50–4:30 pm) and high tide 10:20 pm (10:00–10:40 pm)
  • Likely visibility: good. Swell (up to 3.0 ft at 7 s) over the last few days has stirred up the water. Based on the last 24 hours of data.
  • Water at 80.8 °F: a shorty or a rash guard.
  • Snorkeling: doable, with some waves or wind.
  • Night dive: dark from 6:32 pm. Waning gibbous (85%), rising at 9:20 pm: a bright night.

Your diving day at a glance

The best window, 3:00 pm to 5:00 pm, combines slack water at low tide and light wind, though with current. Also worth a look from 9:20 am to 10:50 am, with slack water at high tide and the sun high, though with moderate wind and current.

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

Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors

Within 12 mi. Some may be missing or closed; marine reserves usually need a permit. Open the map on OpenStreetMap · Missing one? Add it to OpenStreetMap

Wreck and reef positions are approximate and not for navigation; a wreck’s depth runs from the top of the hull to the seabed.

Sites: © OpenStreetMap contributors (ODbL). Wrecks: EMODnet Human Activities (AND-International), from UK Hydrographic Office data, CC BY 4.0. Contains public sector information licensed under the Open Government Licence v3.0.

Weather

Weather in Calhau

14-day weather

Now in Calhau

Now 80 °F Clear · feels like 84 °F · 80 / 81 °F
Low / high
80 / 81 °F
Rain
0.00 in · 10%
Clouds
9%
Humidity
86%
Dew pointDew point
75 °F
Visibility
15 mi
UV indexUV
0 · low
Air qualityAir
Moderate · 56
Saharan dust
Moderate

Pressure and fishing

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

Steady now (−0.01 inHg in 3 hours). Over the next 48 hours: −0.06 inHg. Steady pressure: anglers expect normal activity. 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 clearClearClear skyClear skyClear skyClear skyClear
Temperature 80°80°80°80°80°81°81°81°
Wind (mph) 15 NE16 NNE16 NNE16 NNE14 NNE11 NNE9 NNE9 NNE
Gusts 1921212219151111
Waves 3.1 ft3.1 ft3.1 ft3.1 ft3.1 ft3.0 ft2.9 ft2.8 ft
Rain 0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in
  • 6:00 am 80° 16 NNE 3.1 ft
  • 9:00 am 80° 16 NNE 3.1 ft
  • 12:00 pm 80° 14 NNE 3.1 ft
  • 3:00 pm 81° 11 NNE 3.0 ft
  • 6:00 pm 81° 9 NNE 2.9 ft
  • 9:00 pm 81° 9 NNE 2.8 ft
  • 12:00 am 81° 13 N 2.8 ft
  • 3:00 am 80° 17 N 2.8 ft

Next 14 daysComing days

Day Sky Low / high Max wind Max wave High tides
Today · 29 Overcast 80 / 81 °F 17 mph NNE 3.1 ft 10:08 am · 10:20 pm
Fri 30 Mainly clear 80 / 81 °F 17 mph NNE 2.8 ft 10:56 am · 11:12 pm
Sat 31 Mainly clear 79 / 80 °F 15 mph NNE 2.7 ft 11:51 am
Sun 1 Mainly clear 78 / 78 °F 11 mph NE 2.5 ft 12:14 am · 12:59 pm
Mon 2 Mainly clear 77 / 79 °F 10 mph NE 2.8 ft 1:28 am · 2:25 pm
Tue 3 Mainly clear 77 / 79 °F 13 mph NNE 2.9 ft 2:49 am · 3:52 pm
Wed 4 Mainly clear 77 / 79 °F 11 mph ENE 2.7 ft 4:05 am · 5:00 pm
Thu 5 Overcast 78 / 80 °F 11 mph NE 2.3 ft 5:10 am · 5:52 pm
Fri 6 Overcast 79 / 80 °F 15 mph NE 2.8 ft 6:03 am · 6:34 pm
Sat 7 Overcast 78 / 79 °F 16 mph NE 2.7 ft 6:48 am · 7:12 pm
Sun 8 Overcast 79 / 79 °F 17 mph NNE 3.1 ft 7:28 am · 7:47 pm
Mon 9 Overcast 79 / 80 °F 21 mph NNE 4.2 ft 8:05 am · 8:20 pm
Tue 10 Overcast 79 / 80 °F 24 mph NNE 4.8 ft 8:39 am · 8:52 pm
Wed 11 Overcast 78 / 79 °F 21 mph NE 4.7 ft 9:11 am · 9:24 pm
  • Fri 30 Mainly clear 80° / 81° 2.8 ft
  • Sat 31 Mainly clear 79° / 80° 2.7 ft
  • Sun 1 Mainly clear 78° / 78° 2.5 ft
  • Mon 2 Mainly clear 77° / 79° 2.8 ft
  • Tue 3 Mainly clear 77° / 79° 2.9 ft
  • Wed 4 Mainly clear 77° / 79° 2.7 ft
  • Thu 5 Overcast 78° / 80° 2.3 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 They agree · high confidence for the next few days. 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, cooler than normal for late October (−3.7 °F; normal high: 85 °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 4:14 am (local time).

Sun

The sun in Calhau

Sunrise and sunset →

Sunrise and sunset

Rises 6:36 am in the ESE (104°)ESE
Sets 6:10 pm in the WSW (256°)WSW
  • First light 5:49 am
  • Full dark 6:58 pm
  • Civil dawn 6:14 am
  • Civil dusk 6:32 pm
  • Solar noon 12:23 pm (60° high)
  • Daylight 11 h 34 min (−1 min)
  • Evening golden hour 5:40 pm
  • Full dark 6:58 pm

Golden hour and the day-night map

Morning golden hour6:36–7:06 am
Evening golden hour5:40–6:10 pm
Calhau

Today the sun is 92,333,881 mi away and looks 32′ 11″ across.

Moon and solunar

The moon in Calhau

The moon for 7 days →

Moon phase and position

Waning gibbous · 85% 85% illuminated · 18.9 days old New moon on Mon, Nov 9 · 6:03 am
Rises 9:20 pm in the ENE (61°)ENE
Sets 11:06 am tomorrow · in the WNW (298°) · set at 10:03 am
Transit 3:09 am overhead
Visible 13 h 46 min from 9:20 pm to 11:06 am

Today the moon is 226,666 mi away and looks 32′ 45″ across.

Solunar periods

Today's activity: medium
  • 2:09–4:09 am Major · the moon passes overhead · high activity
  • 2:42–4:42 pm Major · the moon passes underfoot · high activity
  • 9:33–10:33 am Minor · moonset · medium activity
  • 8:50–9:50 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 · 7:29 pmNov 1 in 3 days
  • New moon Mon, Nov 9 · 6:03 amNov 9 in 11 days
  • First quarter Tue, Nov 17 · 10:48 amNov 17 in 19 days
  • Full moon Tue, Nov 24 · 1:54 pmNov 24 in 26 days

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

Place

Where to fish in Calhau

All places in São Vicente →

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

Drops off fast

The bottom drops off fast: the water is 33 ft deep just 650 ft from shore. It reaches 164 ft at 900 ft.

From the shoreline (850 ft from Calhau) out to sea, heading east.

How far from shore

  • 16 ft deep550 ft
  • 33 ft deep650 ft
  • 66 ft deep750 ft
  • 164 ft deep900 ft

For fishing, swimming and diving

  • Shore fishing. 33 ft of water just 650 ft from shore: a good cast reaches deep water. Current and surf hit harder here.
  • Swimming. The bottom drops quickly near the shore and you are soon out of your depth. Keep an eye on kids and weak swimmers.
  • Diving. Shore diving works here: 33 ft at 650 ft and 66 ft at 750 ft from shore.

The profile is turned slightly from the coast so it does not run into an island or a headland.

Source: EMODnet Bathymetry DTM 2024 (CC BY 4.0), cells of about 380 ft; depth at the lowest astronomical tide. For reference only: not for navigation or anchoring.

Tides near CalhauTides nearby

All places in São Vicente, A to Z (31) →

Calhau at a glance

  • Town or city of about 1,177 people. Coordinates: 16.852° N, 24.867° W.
  • It is 8.0 mi east of Mindelo, the main place in São Vicente. The sun rises at the same time and sets at the same time than in Mindelo.
  • The nearest tide station, Porto Grande, is 7.7 mi to the west.
  • Its coast faces east.
  • Beaches and harbors nearby: Praia da Ceilada do Calhau (1.4 mi), Grande Beach (2.6 mi), Praia de Saragaça (2.9 mi), Praia do Norte (3.6 mi).

Questions about CalhauQuestions

What time is high tide today in Calhau?

Today in Calhau there are high tides at 10:08 am (3.2 ft) and 10:20 pm (3.5 ft) and low tides at 4:02 am and 4:07 pm. Tide coefficient 94.

What time is sunset today in Calhau?

At 6:10 pm. There is light until the end of civil twilight, at 6:32 pm.

What time is sunrise tomorrow in Calhau?

At 6:37 am. First light comes at 5:49 am.

What phase is the moon today?

Waning gibbous, 85% illuminated. New moon on Mon, Nov 9 · 6:03 am.

When are the next spring tides?

From November 9 to 11.

What are today's solunar periods?

Major 2:09–4:09 am, Minor 9:33–10:33 am, Major 2:42–4:42 pm, Minor 8:50–9:50 pm. Today's activity is medium.

What's the weather like today in Calhau?

Overcast, from 80 °F to 81 °F, with a moderate breeze from the north-northeast (16 mph) and a 10% chance of rain.

How is the sea today in Calhau?

Slight (Douglas 3): 3.1 ft waves with a period of 7.8 s from the northeast. The water is 80.8 °F.

When is the best time to visit Calhau?

The best time to visit Calhau is from February to July: highs of 77 °F to 83 °F, about 2 rainy days a month and 9 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: Porto Grande 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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Time Tides, sun and moon
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