Mexilhoeira Grande tides today
- Tide now 6.2 ft ↑ rising · high 4:16 pm (10.6 ft)
- Best time to fish 3:20–4:30 pm good day · 8/10
- Beach day 10:00 am–3:00 pm Good beach day · 7/10
- Waves · water 2.1 ft · 65 °F slight · 5.2 s from the southeast
- Wind · air 10 mph · 76 °F from the ESE, gusts 18 · clear sky
- Sun 6:56 am–5:40 pm 10 h 44 min of daylight
- Moon 85% · 8:12 pm waning gibbous · rises at 8:12 pm
- Best time to dive 3:50–4:40 pm great day · 10/10
Today in Mexilhoeira Grande there are high tides at 3:48 am (11.3 ft) and 4:16 pm (10.6 ft) and low tides at 9:56 am and 10:13 pm. Tide coefficient 92. Right now the tide is rising toward the high tide at 4:16 pm. The sun rises at 6:56 am and sets at 5:40 pm: 10 h 44 min of daylight. The moon is 85% illuminated (waning gibbous) and rises at 8:12 pm. Major solunar periods run from 2:01 am to 4:01 am and from 2:34 pm to 4:34 pm. The next spring tides arrive from November 9 to 11. The sea is slight, with 2.1 ft waves. There's a gentle breeze from the east-southeast (10 mph). Clear sky, 76 °F.
Fishing in Mexilhoeira Grande today
Best time to fish
Solunar activity today: medium- High tide at 4:16 pm, coefficient 87
- Major period 2:34–4:34 pm
- Steady pressure (30.06 inHg), light onshore wind (7 mph) and some swell (2.5 ft waves) to stir the water
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 92 (spring tides)
Your day at a glance
The best window, 3:20 pm to 4:30 pm, combines the 4:16 pm high tide, a major period, a light onshore breeze and some swell. Also good from 10:20 am to 11:00 am, with the 9:56 am low tide, moonset, a light onshore breeze and some swell. Also good from 2:50 am to 4:00 am, with the 3:48 am high tide, a major period and falling pressure.
Species with the most records nearby: European hake, Atlantic horse mackerel, bogue and common two-banded seabream. What you can catch
Beach day in Mexilhoeira Grande
Is it a beach day?
8 good hours- Sunny
- Feels like 72 °F: mild
- Onshore breeze (10 mph)
- Calm for swimming: 2.4 ft waves
- UV 4 (moderate): SPF 30 sunscreen
- Water at 65 °F (cool)
Today, hour by hour
- Swimming Calm · 2.4 ft
2.4 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
- Water 65 °F
Cool: refreshing on a hot day.
- Sun & sunscreen UV 4 · SPF 30
Max UV 4 (moderate): SPF 30 sunscreen, reapplied every 2 hours.
- Wind 10 mph
Onshore breeze (10 mph).
- Tide & sand 10:13 pm
Low tide at 9:56 am and 10:13 pm: that's when there's the most sand. High tide at 3:48 am and 4:16 pm.
The best window, 10:00 am to 3:00 pm, brings sunshine, little wind, a calm sea and low tide at 9:56 am.
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 Mexilhoeira Grande
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Praia do Alvor Poente 2.7 mi · S
- Lifeguard
- Parking
- Wheelchair access
Excellent water quality 2025 season, EEA
- Praia do Alvor Nascente 2.9 mi · SE
- Lifeguard
- Restrooms
- Showers
- Parking
- Wheelchair access
Excellent water quality 2025 season, EEA
- Praia dos Três Irmãos 3.2 mi · SE
- Lifeguard
- Restrooms
- Parking
- Wheelchair access
Excellent water quality 2025 season, EEA
- Meia Praia 3.9 mi · SW
- Restrooms
- Parking
- Nudity allowed
Excellent water quality 2025 season, EEA
- Praia do Vau 4.1 mi · SE
- Parking
Excellent water quality 2025 season, EEA
- Praia dos Três Castelos 4.6 mi · SE
- Restrooms
- Parking
Excellent water quality 2025 season, EEA
- Praia da Rocha 5.2 mi · SE
- Lifeguard
- Restrooms
- Parking
Excellent water quality 2025 season, EEA
- Praia de Dona Ana 5.5 mi · SW
- Lifeguard
- Restrooms
- Parking
Good water quality 2025 season, EEA
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). Bathing water quality: European Environment Agency (EEA), with data from the Portuguese Environment Agency (APA).
Webcams near Mexilhoeira Grande
Webcams provided by windy.com — add a webcam
Tides in Mexilhoeira Grande
Today's high and low tides
- ▲ High tide 3:48 am 11.3 ft · coef. 92
- ▼ Low tide 9:56 am 1.9 ft
- ▲ Next high tide 4:16 pm 10.6 ft · coef. 87
- ▼ Low tide 10:13 pm 2.6 ft
↑ Rising The tide is rising. 3 h 9 min to high tide at 4:16 pm.
Tide coefficient 92 for the 3:48 am high tide and 87 for the 4:16 pm high tide. Spring tides. The water rises and falls 9.4 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 13 (12.0 ft) and the lowest, on March 20 (0.7 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 102, 10.1 ft range). The smallest, from October 18 to 19 (coefficient 29, 3.3 ft).
Tide and solunar table · this week
| Day | Sun | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|---|---|
| Today, Thu 29 | 6:56 am · 5:40 pm | High tide 3:48 am · 11.3 ft | Low tide 9:56 am · 1.9 ft | High tide 4:16 pm · 10.6 ft | Low tide 10:13 pm · 2.6 ft | Coef. 92 | 85% | Major periods 2:01 am · 2:34 pm | Medium |
| Fri 30 | 6:57 am · 5:39 pm | High tide 4:37 am · 10.8 ft | Low tide 10:48 am · 2.5 ft | High tide 5:11 pm · 9.9 ft | Low tide 11:04 pm · 3.3 ft | Coef. 80 | 76% | Major periods 3:06 am · 3:38 pm | Medium |
| Sat 31 | 6:58 am · 5:38 pm | High tide 5:34 am · 10.2 ft | Low tide 11:51 am · 3.2 ft | High tide 6:16 pm · 9.1 ft | — | Coef. 66 | 65% | Major periods 4:09 am · 4:39 pm | Medium |
| Sun 1 | 6:59 am · 5:37 pm | Low tide 12:08 am · 4.0 ft | High tide 6:42 am · 9.7 ft | Low tide 1:14 pm · 3.7 ft | High tide 7:36 pm · 8.6 ft | Coef. 54 | Last quarter | Major periods 5:08 am · 5:35 pm | Medium |
| Mon 2 | 7:00 am · 5:36 pm | Low tide 1:34 am · 4.5 ft | High tide 8:04 am · 9.4 ft | Low tide 2:49 pm · 3.8 ft | High tide 9:02 pm · 8.6 ft | Coef. 50 | 43% | Major periods 6:01 am · 6:27 pm | Medium |
| Tue 3 | 7:01 am · 5:35 pm | Low tide 3:07 am · 4.4 ft | High tide 9:26 am · 9.5 ft | Low tide 4:06 pm · 3.5 ft | High tide 10:14 pm · 9.0 ft | Coef. 56 | 32% | Major periods 6:51 am · 7:14 pm | Medium |
| Wed 4 | 7:02 am · 5:34 pm | Low tide 4:20 am · 4.0 ft | High tide 10:34 am · 9.8 ft | Low tide 5:03 pm · 3.1 ft | High tide 11:10 pm · 9.5 ft | Coef. 65 | 23% | Major periods 7:37 am · 7:59 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
Mexilhoeira Grande has no station of its own, so we use the tide at Lagos (TICON-4), 5.1 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 Mexilhoeira Grande
Sea stateSea state: slight
The waves you may find
- Most commonMost common1.1 ft
- Significant2.1 ft
- Highest expectedHighest4.4 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 4.4 ft. Before heading out, expect waves of up to 4.4 ft.
Wind on the coast and offshore
Cross-onshore wind. The coast faces south 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.
Wave height, next 7 daysWaves, next 7 days
Waves stay much the same all week. The biggest waves arrive on Thursday 29: 2.6 ft with a period of 5 s, from the southeast (slight).
Water temperature
Water temperature →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 colder than normal for late October (−1.2 °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 1:07 pm (local time).
Surf in Mexilhoeira Grande today
Surf today
Flat- Barely any waves (0.7 ft sets): flat
- Almost no wind (3 mph): glassy water
- First or last light of the day
- Falling tide (low tide at 9:56 am)
It’s flat today: almost no waves reach this coast.
- Light: First light 6:29 am · sunrise 6:56 am · sunset 5:40 pm · last light 6:07 pm
- Tide: high 3:48 am (11.3 ft), low 9:56 am (1.9 ft), high 4:16 pm (10.6 ft) and low 10:13 pm (2.6 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 64.2 °F: a 3/2 fullsuit.
- Energy: 12 kJ · Low power
Today’s surf at a glance
The best window, 6:29 am to 10:00 am, has glassy water, though with barely any waves.
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 Mexilhoeira Grande today
Diving and snorkeling today
Likely visibility: good- Slack water around low tide (9:56 am): little current from 9:30 am to 10:20 am
- 1.0 ft swell at 7 s from the southwest: barely any surge
- Light cross-shore wind (4 mph)
- 0.2 mph current toward the north, weak (model)
- Sun high: more light underwater
- Slack water today: high tide 3:48 am (3:30–4:10 am), low tide 9:56 am (9:30–10:20 am), high tide 4:16 pm (3:50–4:40 pm) and low tide 10:13 pm (9:50–10:40 pm)
- Likely visibility: good. The sea has been calm and there's been little rain. Based on the last 24 hours of data.
- Water at 64.2 °F: a 7 mm wetsuit, with hood and booties.
- Snorkeling: good, calm sea and light wind.
- Night dive: dark from 6:07 pm. Waning gibbous (85%), rising at 8:12 pm: a bright night.
Your diving day at a glance
The best window, 9:20 am to 11:00 am, combines slack water at low tide, little swell, light wind, weak current and the sun high. Also good from 3:50 pm to 4:40 pm, with slack water at high tide, light wind and weak 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.
Dive sites, wrecks and dive shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Ximenes Calvinho 3.8 mi
- So Um 7.9 mi
- Wreck 5.1 mi
- WeDive Lagos 4.6 mi
- LakaLaka Diving Portugal 4.7 mi
- Lagos Divers - Algarve 4.9 mi
- Subnauta 5.3 mi
- Surf 5.6 mi
- Divers Cove 5.7 mi
- Ocean Respect Ecodive Center 11 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
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 in Mexilhoeira Grande
Now in Mexilhoeira Grande
- Low / high
- 60 / 76 °F
- Rain
- 0.00 in · 0%
- Clouds
- 3%
- Humidity
- 44%
- Dew pointDew point
- 52 °F
- Visibility
- 26 mi
- UV indexUV
- 4 · moderate
- Air qualityAir
- Moderate · 54
- Saharan dust
- No
- Pollen
- None
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 (−0.02 inHg in 3 hours). It barely changes over the next 48 hours. 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 | Mainly clear | Partly cloudy | Clear | Clear sky | Clear sky | Clear sky | Clear | Clear |
| Temperature | 60° | 61° | 60° | 67° | 75° | 75° | 71° | 64° |
| Wind (mph) | 2 NW | 3 N | 3 NNE | 3 NNE | 9 ESE | 9 SE | 2 ESE | 3 NNW |
| Gusts | 3 | 4 | 5 | 5 | 17 | 18 | 9 | 4 |
| Waves | 1.4 ft | 1.3 ft | 1.3 ft | 1.3 ft | 1.9 ft | 2.6 ft | 2.4 ft | 2.0 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 |
- 3:00 pm 75° 9 SE 2.6 ft
- 6:00 pm 71° 2 ESE 2.4 ft
- 9:00 pm 64° 3 NNW 2.0 ft
- 12:00 am 60° 3 N 1.8 ft
- 3:00 am 59° 3 N 1.7 ft
- 6:00 am 58° 3 N 1.8 ft
- 9:00 am 63° 2 N 1.9 ft
- 12:00 pm 73° 6 SSE 1.9 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 29 | 60 / 76 °F | 10 mph E | 2.6 ft | 3:48 am · 4:16 pm | |
| Fri 30 | 58 / 74 °F | 6 mph ENE | 1.9 ft | 4:37 am · 5:11 pm | |
| Sat 31 | 56 / 73 °F | 8 mph E | 1.8 ft | 5:34 am · 6:16 pm | |
| Sun 1 | 60 / 72 °F | 8 mph E | 2.4 ft | 6:42 am · 7:36 pm | |
| Mon 2 | 58 / 79 °F | 8 mph WNW | 1.6 ft | 8:04 am · 9:02 pm | |
| Tue 3 | 55 / 78 °F | 8 mph NW | 1.0 ft | 9:26 am · 10:14 pm | |
| Wed 4 | 50 / 73 °F | 5 mph NW | 0.8 ft | 10:34 am · 11:10 pm | |
| Thu 5 | 56 / 68 °F | 6 mph S | 0.7 ft | 11:28 am · 11:56 pm | |
| Fri 6 | 54 / 67 °F | 9 mph NNW | 0.9 ft | 12:13 pm | |
| Sat 7 | 54 / 61 °F | 4 mph N | 0.6 ft | 12:35 am · 12:53 pm | |
| Sun 8 | 50 / 68 °F | 7 mph ESE | 3.2 ft | 1:12 am · 1:30 pm | |
| Mon 9 | 54 / 70 °F | 9 mph ESE | 3.6 ft | 1:46 am · 2:05 pm | |
| Tue 10 | 56 / 72 °F | 10 mph SE | 4.5 ft | 2:20 am · 2:39 pm | |
| Wed 11 | 63 / 71 °F | 9 mph SSE | 4.9 ft | 2:53 am · 3:12 pm |
- Fri 30 Overcast 58° / 74° 1.9 ft
- Sat 31 Fog 56° / 73° 1.8 ft
- Sun 1 Mainly clear 60° / 72° 2.4 ft
- Mon 2 Clear sky 58° / 79° 1.6 ft
- Tue 3 Partly cloudy 55° / 78° 1.0 ft
- Wed 4 Partly cloudy 50° / 73° 0.8 ft
- Thu 5 Light drizzle 56° / 68° 0.7 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 temperature today. See the models →
- Outlook Next few weeks, compared with normal: a bit warmer and a bit wetter. See the outlook →
- Normal Today, warmer than normal for late October (+5.5 °F; normal high: 70 °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 1:07 pm (local time).
The sun in Mexilhoeira Grande
Sunrise and sunset
- First light 5:58 am
- Full dark 6:38 pm
- Civil dawn 6:29 am
- Civil dusk 6:07 pm
- Solar noon 12:18 pm (39° high)
- Daylight 10 h 44 min (−2 min)
- Evening golden hour 5:04 pm
- Full dark 6:38 pm
Golden hour and the day-night map
Today the sun is 92,334,972 mi away and looks 32′ 11″ across.
The moon in Mexilhoeira Grande
Moon phase and position
Today the moon is 226,641 mi away and looks 32′ 45″ across.
Solunar periods
Today's activity: medium- 2:01–4:01 am Major · the moon passes overhead · high activity
- 2:34–4:34 pm Major · the moon passes underfoot · high activity
- 10:25–11:25 am Minor · moonset · medium activity
- 7:42–8:42 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 · 8:29 pmNov 1 in 3 days
- New moon Mon, Nov 9 · 7:03 amNov 9 in 11 days
- First quarter Tue, Nov 17 · 11:48 amNov 17 in 19 days
- Full moon Tue, Nov 24 · 2:54 pmNov 24 in 26 days
Next perigee (the moon at its closest to Earth): November 25, 223,281 mi away.
Where to fish in Mexilhoeira Grande
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Cais Diogo de Silves 4.7 mi
- Jetty 1.3 mi
- Jetty 1.6 mi
- Jetty 2.6 mi
- Boat ramp 2.4 mi
- Boat ramp 4.7 mi
- Boat ramp 4.8 mi
- Marina de Lagos 4.7 mi
- Porto de Recreio do Clube Naval de Portimão 4.9 mi
- Viveiro do Isco 4.7 mi
- Artigos de Pesca 9.1 mi
- Fuel dock 4.8 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.
Nearest lighthouse
Ponta da Piedade Lighthouse 6.2 mi southwest
- Light
- A white flash every 7 s · Fl W 7s
- Range
- 20 nautical miles (23 mi)
- Light height
- 184 ft above sea level
- Tower height
- 16 ft
- Built
- 1913
Light details: NGA List of Lights (USA); the rest from Wikidata. For reference only: not for navigation. Wikipedia · Wikidata · Sources and licenses
Tides near Mexilhoeira GrandeTides nearby
- Alvor2.4 mi
- Portimão4.5 mi
- Lagos5.1 mi
- Parchal5.6 mi
- Ferragudo5.8 mi
- Porto de Mós6.3 mi
- Senhora da Luz7.9 mi
- Carvoeiro9.1 mi
- Burgau11 mi
- Armação de Pêra15 mi
Mexilhoeira Grande at a glance
- Town or city of about 4,029 people. Coordinates: 37.159° N, 8.615° W.
- It is 39 mi west of Faro, the main place in Faro. The sun rises 3 min later and sets 3 min later than in Faro.
- The nearest tide station, Lagos, is 5.1 mi to the southwest.
- Its coast faces south.
- Beaches and harbors nearby: Praia do Vale da Lama (2.7 mi), Alvor Beach (2.9 mi), Praia dos Três Irmãos (3.2 mi), Praia do Valentim de Carvalho (3.8 mi).
Questions about Mexilhoeira GrandeQuestions
What time is high tide today in Mexilhoeira Grande?
Today in Mexilhoeira Grande there are high tides at 3:48 am (11.3 ft) and 4:16 pm (10.6 ft) and low tides at 9:56 am and 10:13 pm. Tide coefficient 92.
What time is sunset today in Mexilhoeira Grande?
At 5:40 pm. There is light until the end of civil twilight, at 6:07 pm.
What time is sunrise tomorrow in Mexilhoeira Grande?
At 6:57 am. First light comes at 5:59 am.
What phase is the moon today?
Waning gibbous, 85% illuminated. New moon on Mon, Nov 9 · 7:03 am.
When are the next spring tides?
From November 9 to 11.
What are today's solunar periods?
Major 2:01–4:01 am, Minor 10:25–11:25 am, Major 2:34–4:34 pm, Minor 7:42–8:42 pm. Today's activity is medium.
What's the weather like today in Mexilhoeira Grande?
Partly cloudy, from 60 °F to 76 °F, with a gentle breeze from the east-southeast (10 mph) and a 0% chance of rain.
How is the sea today in Mexilhoeira Grande?
Slight (Douglas 3): 2.1 ft waves with a period of 5.2 s from the southeast. The water is 64.6 °F.
When is the best time to visit Mexilhoeira Grande?
The best time to visit Mexilhoeira Grande is from June to September: highs of 79 °F to 83 °F, barely 1 rainy day a month and 11 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: Lagos 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).