Barra da Tijuca tides today
- Tide now -0.2 ft ↑ rising · high 4:31 am (3.1 ft)
- Best time to fish 10:00 pm–12:00 am average day · 6/10
- Beach day 4:00–6:00 pm Poor beach day · 3/10
- Waves · water 4.7 ft · 74 °F moderate · 7.2 s from the southeast
- Wind · air 5 mph · 71 °F from the ENE, gusts 11 · overcast
- Surf tomorrow 1.7–2.6 ft Fair day · 4/10 · 5:00–9:00 am
- Sun 5:11 am–6:04 pm 12 h 53 min of daylight
- Moon 92% · 9:04 pm waning gibbous · rises at 9:04 pm
Today in Barra da Tijuca there are high tides at 3:48 am (3.4 ft) and 3:39 pm (2.8 ft) and low tides at 10:52 am and 10:57 pm. Tide coefficient 91. Right now the tide is rising toward the high tide at 4:31 am. The sun rises at 5:11 am and sets at 6:04 pm: 12 h 53 min of daylight. The moon is 92% illuminated (waning gibbous) and rises at 9:04 pm. Major solunar periods run from 12:23 am to 2:23 am and from 12:54 pm to 2:54 pm. The next spring tides arrive from October 26 to 28. The sea is moderate, with 4.7 ft waves. There's a light breeze from the east-northeast (5 mph). Overcast, 71 °F.
Fishing in Barra da Tijuca today
Best time to fish
Solunar activity today: medium- High tide at 3:39 pm, coefficient 83
- Major period 12:54–2:54 pm
- Falling pressure (−0.11 inHg in 24 h), light cross-shore wind (11 mph) and 5.0 ft waves
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 91 (spring tides)
Your day at a glance
The best window, 2:40 pm to 4:40 pm, combines the 3:39 pm high tide, a major period and falling pressure. Also good from 10:00 pm to 12:00 am, with the 10:57 pm low tide, falling pressure and some swell. Also good from 9:50 am to 11:50 am, with the 10:52 am low tide and some swell.
Species with the most records nearby: whitemouth croaker, Florida pompano, southern kingfish and bonefish. October is one of the months when these are seen most: Florida pompano and southern kingfish. What you can catch
Beach day in Barra da Tijuca
Is it a beach day?
- Sun and clouds
- Feels like 77 °F: pleasant
- Cross-shore breeze (11 mph)
- Water at 75 °F (nice)
- Swim with care: 5.1 ft waves every 7 s; moderate rip current risk
Today, hour by hour
- Swimming Use care · 5.1 ft
5.1 ft waves every 7 s: swim with care and stay where you can stand. Moderate rip current risk. Always follow the lifeguard's flags.
- Water 74 °F
Nice for swimming.
- Sun & sunscreen UV 6 · SPF 50
Max UV 6 (high): SPF 50 sunscreen, reapplied every 2 hours.
- Wind 11 mph
Cross-shore breeze (11 mph).
- Tide & sand 10:52 am
Low tide at 10:52 am and 10:57 pm: that's when there's the most sand. High tide at 3:48 am and 3:39 pm.
The best window, 4:00 pm to 6:00 pm, brings pleasant temperatures, little wind and water at 75 °F, though with 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 Barra da Tijuca
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Barra da Tijuca Beach 2.1 mi · SE
- Lifeguard
- Restrooms
- Parking
- Praia da Reserva 3.2 mi · SW
- Lifeguard
- Restrooms
- Parking
- Praia dos Amores 4.6 mi · E
- Parking
- Praia da Joatinga 4.9 mi · E
- Parking
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).
Webcams near Barra da Tijuca
Webcams provided by windy.com — add a webcam
Tides in Barra da Tijuca
Today's high and low tides
- ▲ High tide 3:48 am 3.4 ft · coef. 91
- ▼ Low tide 10:52 am 0.4 ft
- ▲ High tide 3:39 pm 2.8 ft · coef. 83
- ▼ Low tide 10:57 pm -0.2 ft
↑ Rising The tide is rising. 5 h 30 min to high tide at 4:31 am.
Tide coefficient 91 for the 3:48 am high tide and 83 for the 3:39 pm high tide. Spring tides. The water rises and falls 3.7 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 March 19 (4.2 ft) and the lowest, on August 12 (-1.0 ft).
Mixed: two high and two low tides a day, but of quite different heights.
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 25 to 26 (coefficient 108, 4.1 ft range). The smallest, on October 18 (coefficient 20, 1.4 ft).
Tide and solunar table · this week
| Day | Sun | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Tide 5 | Tide 6 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Today, Wed 28 | 5:11 am · 6:04 pm | High tide 3:48 am · 3.4 ft | Low tide 10:52 am · 0.4 ft | High tide 3:39 pm · 2.8 ft | Low tide 10:57 pm · -0.2 ft | — | — | Coef. 91 | 92% | Major periods 12:23 am · 12:54 pm | Medium |
| Thu 29 | 5:10 am · 6:05 pm | High tide 4:31 am · 3.1 ft | Low tide 11:55 am · 0.9 ft | High tide 4:14 pm · 2.6 ft | — | — | — | Coef. 74 | 84% | Major periods 1:26 am · 1:59 pm | Medium |
| Fri 30 | 5:09 am · 6:05 pm | Low tide 12:06 am · 0.0 ft | High tide 5:17 am · 2.8 ft | Low tide 1:07 pm · 1.2 ft | High tide 4:52 pm · 2.5 ft | — | — | Coef. 55 | 75% | Major periods 2:31 am · 3:03 pm | Low |
| Sat 31 | 5:09 am · 6:06 pm | Low tide 1:21 am · 0.1 ft | High tide 6:09 am · 2.4 ft | Low tide 8:41 am · 2.1 ft | High tide 10:50 am · 2.2 ft | Low tide 2:22 pm · 1.5 ft | High tide 5:38 pm · 2.3 ft | Coef. 37 | 64% | Major periods 3:34 am · 4:03 pm | Medium |
| Sun 1 | 5:08 am · 6:06 pm | Low tide 2:34 am · 0.2 ft | High tide 11:46 am · 2.5 ft | Low tide 3:30 pm · 1.5 ft | High tide 6:37 pm · 2.1 ft | — | — | Coef. 30 | Last quarter | Major periods 4:32 am · 4:59 pm | Medium |
| Mon 2 | 5:08 am · 6:07 pm | Low tide 3:43 am · 0.2 ft | High tide 12:26 pm · 2.7 ft | Low tide 4:29 pm · 1.3 ft | High tide 7:59 pm · 2.1 ft | — | — | Coef. 41 | 42% | Major periods 5:25 am · 5:50 pm | Medium |
| Tue 3 | 5:07 am · 6:07 pm | Low tide 4:45 am · 0.1 ft | High tide 12:52 pm · 2.7 ft | Low tide 5:19 pm · 1.0 ft | High tide 9:56 pm · 2.3 ft | — | — | Coef. 56 | 31% | Major periods 6:14 am · 6:38 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
Barra da Tijuca has no station of its own, so we use the tide at Ilha Fiscal (Rio de Janeiro, TICON-4), 15 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
The sea at Barra da Tijuca
Sea stateSea state: moderate
The waves you may find
- Most commonMost common2.4 ft
- Significant4.7 ft
- Highest expectedHighest9.6 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 9.6 ft. Before heading out, expect waves of up to 9.6 ft.
Wind on the coast and offshore
Cross-offshore wind. The coast faces south and the wind comes off the land at an angle: calmer water near the shore, and bait and boats drift out to sea.
Wave height, next 7 daysWaves, next 7 days
Waves ease over the next few days. The biggest waves arrive on Wednesday 28: 5.8 ft with a period of 9 s, from the south-southeast (moderate).
Water temperature
Water temperature →Water temperature changes how fish behave: in very cold or very warm water they feed less. The water warms over the next few days: about 77.2 °F by Tuesday 3.
Water warmer than normal for late October (+2.1 °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 10:58 pm (local time).
Surf in Barra da Tijuca today
Surf today
Good- 3.6–5.5 ft surf at the shore, a good size with some punch
- 5.0 ft swell at 7 s from the south-southeast, short: weak, messy waves
- Light offshore wind (5 mph): it holds up and grooms the waves
- Falling tide (low tide at 10:52 am)
- Light: First light 4:47 am · sunrise 5:11 am · sunset 6:04 pm · last light 6:27 pm
- Tide: high 3:48 am (3.4 ft), low 10:52 am (0.4 ft), high 3:39 pm (2.8 ft) and low 10:57 pm (-0.2 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 74.3 °F: a rash guard or a neoprene top.
- Energy: 242 kJ · Medium power
Today’s surf at a glance
The best window, 5:00 am to 9:00 am, has a good size and light offshore wind, though with a short-period swell. 12:00 pm to 4:00 pm can also work, with a good size, though with a short-period 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.
Diving in Barra da Tijuca today
Diving and snorkeling today
Likely visibility: poor- Slack water around low tide (10:52 am): little current from 10:30 am to 11:10 am
- 4.1 ft swell at 7 s from the south-southeast: some surge on the bottom
- Light cross-shore wind (5 mph)
- 0.5 mph current toward the west-southwest, weak (model)
- Sun high: more light underwater
- Slack water today: high tide 3:48 am (3:30–4:03 am), low tide 10:52 am (10:30–11:10 am), high tide 3:39 pm (3:24–3:54 pm) and low tide 10:57 pm (10:10–11:20 pm)
- Likely visibility: poor. Swell (up to 7.7 ft at 8 s) over the last few days has stirred up the water. Based on the last 24 hours of data.
- Water at 74.3 °F: a 3 mm wetsuit.
- Snorkeling: better not, with these waves, wind or current.
- Night dive: dark from 6:27 pm. Waning gibbous (92%), rising at 9:04 pm: a bright night.
Your diving day at a glance
The best window, 9:30 am to 11:40 am, combines slack water at low tide, light wind, weak current and the sun high, though with some swell. Also worth a look from 3:10 pm to 4:10 pm, with slack water at high tide, light wind and weak current, though with some swell.
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.
Dive sites, wrecks and dive shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Área de Proteção Ambiental de Grumari 11 mi
- Monumento Natural do Arquipélago das Ilhas Cagarras 11 mi
- Mergulho Carioca - Curso de Mergulho Rio de Janeiro 4.1 mi
- Cardume Mergulho 4.4 mi
- Escola de Mergulho MR Dive 6.5 mi
- Maritimo Rio 6.6 mi
- MACAU DIVE 8.3 mi
- XDivers Scuba School 9.2 mi
- Tiburón Dive Shop 12 mi
- Mirante do Leblon 12 mi
- Coral de Fogo Diving Experience SSI 12 mi
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
Sites: © OpenStreetMap contributors (ODbL).
Weather in Barra da Tijuca
Now in Barra da Tijuca
- Low / high
- 68 / 77 °F
- Rain
- 0.00 in · 8%
- Clouds
- 94%
- Humidity
- 87%
- Dew pointDew point
- 66 °F
- Visibility
- 15 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Moderate · 46
- Saharan dust
- No
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 (−0.00 inHg in 3 hours). Over the next 48 hours: −0.19 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 am | 3:00 am | 6:00 am | 9:00 am | 12:00 pm | 3:00 pm | 6:00 pm | 9:00 pm |
|---|---|---|---|---|---|---|---|---|
| Sky | Overcast | Overcast | Overcast | Overcast | Overcast | Overcast | Partly cloudy | Overcast |
| Temperature | 69° | 69° | 68° | 75° | 77° | 76° | 73° | 72° |
| Wind (mph) | 7 ENE | 7 ENE | 5 ENE | 5 NE | 6 ESE | 11 ESE | 10 E | 7 E |
| Gusts | 15 | 11 | 11 | 12 | 14 | 24 | 21 | 15 |
| Waves | 5.8 ft | 5.4 ft | 5.1 ft | 4.8 ft | 4.7 ft | 4.9 ft | 5.2 ft | 5.0 ft |
| Rain | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in |
- 12:00 am 70° 4 ENE 4.6 ft
- 3:00 am 70° 2 ENE 4.3 ft
- 6:00 am 70° 1 ESE 3.9 ft
- 9:00 am 74° 2 SE 3.8 ft
- 12:00 pm 72° 5 SSE 3.7 ft
- 3:00 pm 71° 5 E 3.7 ft
- 6:00 pm 71° 3 ENE 3.9 ft
- 9:00 pm 71° 5 ENE 4.1 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 28 | 68 / 77 °F | 11 mph E | 5.8 ft | 3:48 am · 3:39 pm | |
| Thu 29 | 70 / 74 °F | 5 mph E | 4.6 ft | 4:31 am · 4:14 pm | |
| Fri 30 | 71 / 79 °F | 7 mph SSW | 4.1 ft | 5:17 am · 4:52 pm | |
| Sat 31 | 69 / 75 °F | 10 mph SW | 4.1 ft | 6:09 am · 10:50 am · 5:38 pm | |
| Sun 1 | 71 / 75 °F | 7 mph SSW | 3.9 ft | 11:46 am · 6:37 pm | |
| Mon 2 | 70 / 80 °F | 11 mph E | 3.7 ft | 12:26 pm · 7:59 pm | |
| Tue 3 | 72 / 82 °F | 7 mph SW | 3.6 ft | 12:52 pm · 9:56 pm | |
| Wed 4 | 74 / 83 °F | 8 mph ENE | 3.0 ft | 12:54 pm · 11:18 pm | |
| Thu 5 | 76 / 87 °F | 4 mph W | 2.1 ft | 12:29 pm | |
| Fri 6 | 77 / 92 °F | 6 mph NE | 2.4 ft | 12:04 am · 12:39 pm | |
| Sat 7 | 77 / 90 °F | 14 mph NNW | 2.0 ft | 12:45 am · 1:06 pm | |
| Sun 8 | 73 / 83 °F | 17 mph SW | 4.1 ft | 1:25 am · 1:38 pm | |
| Mon 9 | 71 / 75 °F | 10 mph SSW | 4.1 ft | 2:05 am · 2:11 pm | |
| Tue 10 | 70 / 73 °F | 9 mph SE | 3.3 ft | 2:44 am · 2:44 pm |
- Thu 29 Light rain 70° / 74° 4.6 ft
- Fri 30 Light rain 71° / 79° 4.1 ft
- Sat 31 Light drizzle 69° / 75° 4.1 ft
- Sun 1 Light drizzle 71° / 75° 3.9 ft
- Mon 2 Light drizzle 70° / 80° 3.7 ft
- Tue 3 Light drizzle 72° / 82° 3.6 ft
- Wed 4 Overcast 74° / 83° 3.0 ft
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 on Saturday 31. See the models →
- Outlook Next few weeks, compared with normal: a bit warmer and normal rain. See the outlook →
- Normal Today, cooler than normal for late October (−6.9 °F; normal high: 84 °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 10:58 pm (local time).
The sun in Barra da Tijuca
Sunrise and sunset
- First light 4:20 am
- Full dark 6:55 pm
- Civil dawn 4:47 am
- Civil dusk 6:27 pm
- Solar noon 11:37 am (80° high)
- Daylight 12 h 53 min (+1 min)
- Evening golden hour 5:34 pm
- Full dark 6:55 pm
Golden hour and the day-night map
Today the sun is 92,356,917 mi away and looks 32′ 11″ across.
The moon in Barra da Tijuca
Moon phase and position
Today the moon is 226,432 mi away and looks 32′ 47″ across.
Solunar periods
Today's activity: medium- 12:23–2:23 am Major · the moon passes overhead · high activity
- 12:54–2:54 pm Major · the moon passes underfoot · high activity
- 6:17–7:17 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 4 days
- New moon Mon, Nov 9 · 4:03 amNov 9 in 12 days
- First quarter Tue, Nov 17 · 8:48 amNov 17 in 20 days
- Full moon Tue, Nov 24 · 11:54 amNov 24 in 27 days
Perigee on October 28, 226,426 mi away, coinciding with the spring tides from October 26 to 28: they will be stronger than usual.
Where to fish in Barra da Tijuca
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Boat ramp 4.3 mi
- Toca do Pescador 3.0 mi
- Empório Do Pescador RJ 3.4 mi
- JF Caiaques & Pesca 5.1 mi
- Tackle shop 5.3 mi
- Pesca Esportiva & Passeio - Itacuruça 8.6 mi
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 fastThe bottom drops off fast: the water is 33 ft deep just 550 ft from shore.
From the shoreline (0.9 mi from Barra da Tijuca) out to sea, heading south.
How far from shore
- 16 ft deep260 ft
- 33 ft deep550 ft
- 66 ft deep1,150 ft
- 164 ft deepnot within 3.1 mi
For fishing, swimming and diving
- Shore fishing. Deep water close in: about 20 ft just 330 ft out. Good for casting from rocks, jetties or the beach itself; 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 550 ft and 66 ft at 1,150 ft from shore.
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 Barra da TijucaTides nearby
- São Conrado6.1 mi
- Rocinha7.4 mi
- Vidigal8.0 mi
- Leblon9.1 mi
- Ipanema10 mi
- Copacabana12 mi
- Estácio12 mi
- Cidade Nova12 mi
- Botafogo12 mi
- Santo Cristo13 mi
Barra da Tijuca at a glance
- Town or city of about 421,438 people. Coordinates: 22.998° S, 43.365° W.
- It is 13 mi southwest of Rio de Janeiro, the main place in Río de Janeiro. The sun rises 1 min later and sets 1 min later than in Rio de Janeiro.
- The nearest tide station, Ilha Fiscal, is 15 mi to the northeast.
- Its coast faces south.
- Beaches and harbors nearby: PRAIA DA BARRA (2.1 mi), Restinga de Jacarepaguá (2.3 mi), Barra da Tijuca Beach (3.1 mi), Praia do Recreio dos Bandeirantes (3.2 mi).
Questions about Barra da TijucaQuestions
What time is high tide today in Barra da Tijuca?
Today in Barra da Tijuca there are high tides at 3:48 am (3.4 ft) and 3:39 pm (2.8 ft) and low tides at 10:52 am and 10:57 pm. Tide coefficient 91.
What time is sunset today in Barra da Tijuca?
At 6:04 pm. There is light until the end of civil twilight, at 6:27 pm.
What time is sunrise tomorrow in Barra da Tijuca?
At 5:10 am. First light comes at 4:19 am.
What phase is the moon today?
Waning gibbous, 92% illuminated. New moon on Mon, Nov 9 · 4:03 am.
When are the next spring tides?
From October 26 to 28, together with the lunar perigee: they will be stronger than usual.
What are today's solunar periods?
Major 12:23–2:23 am, Minor 6:17–7:17 am, Major 12:54–2:54 pm, Minor 8:34–9:34 pm. Today's activity is medium.
What's the weather like today in Barra da Tijuca?
Overcast, from 68 °F to 77 °F, with a light breeze from the east-northeast (5 mph) and a 8% chance of rain.
How is the sea today in Barra da Tijuca?
Moderate (Douglas 4): 4.7 ft waves with a period of 7.2 s from the southeast. The water is 74.3 °F.
When is the best time to visit Barra da Tijuca?
The best time to visit Barra da Tijuca is from June to August: highs of 81 °F to 82 °F, about 6 rainy days a month and 5 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: Ilha Fiscal (Rio de Janeiro) 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).