Dehiwala-Mount Lavinia tides today
- Tide now 2.8 ft ↓ falling · low 9:39 am (0.8 ft)
- Best time to fish 2:30–3:50 pm good day · 8/10
- Beach tomorrow 7:00–10:00 am Fair beach day · 6/10
- Waves · water 4.5 ft · 85 °F moderate · 6.8 s from the southwest
- Wind · air 4 mph · 75 °F from the ESE, gusts 10 · drizzle
- Surf today 2.3–3.5 ft Fair day · 4/10 · 6:00–10:00 am
- Sun 5:57 am–5:51 pm 11 h 54 min of daylight
- Moon 87% · 8:56 pm waning gibbous · rises at 8:56 pm
Today in Dehiwala-Mount Lavinia there are high tides at 3:26 am (2.8 ft) and 3:18 pm (2.1 ft) and low tides at 9:39 am and 9:07 pm. Tide coefficient 96. Right now the tide is falling toward the low tide at 9:39 am. The sun rises at 5:57 am and sets at 5:51 pm: 11 h 54 min of daylight. The moon is 87% illuminated (waning gibbous) and rises at 8:56 pm. Major solunar periods run from 1:21 am to 3:21 am and from 1:54 pm to 3:54 pm. The next spring tides arrive from November 10 to 12. The sea is moderate, with 4.5 ft waves. There's a light breeze from the east-southeast (4 mph). Drizzle, 75 °F.
Fishing in Dehiwala-Mount Lavinia today
Best time to fish
Solunar activity today: medium- High tide at 3:18 pm, coefficient 91
- Major period 1:54–3:54 pm
- Steady pressure (29.83 inHg), light onshore wind (4 mph) and some swell (3.9 ft waves) to stir the water
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 96 (spring tides)
Your day at a glance
The best window, 2:30 pm to 3:50 pm, combines the 3:18 pm high tide, a major period, a light onshore breeze and some swell. Also good from 8:40 am to 9:20 am, with the 9:39 am low tide, moonset, a light onshore breeze and some swell. Also good from 2:30 am to 3:20 am, with the 3:26 am high tide, a major period and some swell.
Beach day in Dehiwala-Mount Lavinia
Is it a beach day?
- Feels like 94 °F: hot
- Onshore breeze (6 mph)
- UV 7 (high): SPF 50 sunscreen
- Water at 85 °F (very warm)
- Low tide at 9:39 am: more sand
- Cloudy (89% cloud cover)
Thunderstorms during beach hours: get out of the water and off the sand as soon as you hear thunder.
Today, hour by hour
- Swimming Use care · 4.1 ft
4.1 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 85 °F
Very warm: barely refreshing.
- Sun & sunscreen UV 7 · SPF 50
Max UV 7 (high): SPF 50 sunscreen, reapplied every 2 hours.
- Wind 6 mph
Onshore breeze (6 mph).
- Tide & sand 9:39 am
Low tide at 9:39 am and 9:07 pm: that's when there's the most sand. High tide at 3:26 am and 3:18 pm. Coefficient 96 (spring tides): little sand left at high tide.
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 Dehiwala-Mount Lavinia
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Dehiwala Beach 1.6 mi · NW
- Wellawatte Beach 2.5 mi · N
- Lifeguard
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 Dehiwala-Mount Lavinia
Webcams provided by windy.com — add a webcam
Tides in Dehiwala-Mount Lavinia
Today's high and low tides
- ▲ High tide 3:26 am 2.8 ft · coef. 96
- ▼ Next low tide 9:39 am 0.8 ft
- ▲ High tide 3:18 pm 2.1 ft · coef. 91
- ▼ Low tide 9:07 pm 0.5 ft
↓ Falling The tide is falling. 6 h 11 min to low tide at 9:39 am.
Tide coefficient 96 for the 3:26 am high tide and 91 for the 3:18 pm high tide. Spring tides. The water rises and falls 2.3 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 April 18 (3.1 ft) and the lowest, on August 15 (0.0 ft).
Mixed: two high and two low tides a day, but of quite different heights.
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 11 to 12 (coefficient 109, 2.6 ft range). The smallest, from October 19 to 20 (coefficient 23, 0.5 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 | 5:57 am · 5:51 pm | High tide 3:26 am · 2.8 ft | Low tide 9:39 am · 0.8 ft | High tide 3:18 pm · 2.1 ft | Low tide 9:07 pm · 0.5 ft | Coef. 96 | 87% | Major periods 1:21 am · 1:54 pm | Medium |
| Fri 30 | 5:57 am · 5:51 pm | High tide 4:00 am · 2.6 ft | Low tide 10:10 am · 0.9 ft | High tide 3:49 pm · 2.0 ft | Low tide 9:39 pm · 0.7 ft | Coef. 84 | 78% | Major periods 2:26 am · 2:58 pm | Low |
| Sat 31 | 5:58 am · 5:51 pm | High tide 4:35 am · 2.4 ft | Low tide 10:43 am · 1.0 ft | High tide 4:25 pm · 1.9 ft | Low tide 10:13 pm · 0.9 ft | Coef. 69 | 68% | Major periods 3:30 am · 4:00 pm | Medium |
| Sun 1 | 5:58 am · 5:50 pm | High tide 5:13 am · 2.2 ft | Low tide 11:24 am · 1.2 ft | High tide 5:14 pm · 1.8 ft | Low tide 10:54 pm · 1.3 ft | Coef. 51 | 57% | Major periods 4:30 am · 4:58 pm | Medium |
| Mon 2 | 5:58 am · 5:50 pm | High tide 6:06 am · 2.0 ft | Low tide 12:26 pm · 1.3 ft | High tide 8:03 pm · 1.7 ft | — | Coef. 32 | Last quarter | Major periods 5:25 am · 5:50 pm | Medium |
| Tue 3 | 5:58 am · 5:50 pm | Low tide 12:05 am · 1.6 ft | High tide 8:17 am · 1.9 ft | Low tide 3:41 pm · 1.4 ft | High tide 10:30 pm · 2.0 ft | Coef. 28 | 35% | Major periods 6:15 am · 6:39 pm | Medium |
| Wed 4 | 5:58 am · 5:50 pm | Low tide 5:10 am · 1.6 ft | High tide 10:10 am · 2.0 ft | Low tide 4:51 pm · 1.2 ft | High tide 11:24 pm · 2.3 ft | Coef. 47 | 25% | Major periods 7:02 am · 7:24 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
Dehiwala-Mount Lavinia has no station of its own, so we use the tide at Colombo (TICON-4), 6.6 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 Dehiwala-Mount Lavinia
Sea stateSea state: moderate
The waves you may find
- Most commonMost common2.2 ft
- Significant4.5 ft
- Highest expectedHighest9.1 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 9.1 ft. Before heading out, expect waves of up to 9.1 ft.
Wind on the coast and offshore
Cross-offshore wind. The coast faces west 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 stay much the same all week. The biggest waves arrive on Thursday 29: 4.5 ft with a period of 7 s, from the southwest (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 86.3 °F by Wednesday 4.
Water warmer than normal for late October (+1.7 °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 3:28 am (local time).
Surf in Dehiwala-Mount Lavinia today
Surf today
Fair- 2.3–3.5 ft surf at the shore, a fun size for most surfers
- 3.5 ft swell at 5 s from the southwest, short: weak, messy waves
- Almost no wind (4 mph): glassy water
- Falling tide (low tide at 9:39 am)
- Light: First light 5:36 am · sunrise 5:57 am · sunset 5:51 pm · last light 6:12 pm
- Tide: high 3:26 am (2.8 ft), low 9:39 am (0.8 ft), high 3:18 pm (2.1 ft) and low 9:07 pm (0.5 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 84.7 °F: boardshorts or a swimsuit and a rash guard.
- Energy: 51 kJ · Low power
Today’s surf at a glance
The best window, 6:00 am to 10:00 am, has a good size and glassy water, though with a short-period swell. 3:00 pm to 5:00 pm can also work, with a good size and glassy water, 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 Dehiwala-Mount Lavinia today
Diving and snorkeling today
Likely visibility: fair- Slack water around high tide (3:18 pm): little current from 3:00 pm to 3:40 pm
- 2.8 ft swell at 5 s from the south-southwest: some surge on the bottom
- Light onshore wind (4 mph)
- 0.2 mph current toward the east, weak (model)
- Daylight
- Slack water today: high tide 3:26 am (3:10–3:41 am), low tide 9:39 am (9:20–10:00 am), high tide 3:18 pm (3:00–3:40 pm) and low tide 9:07 pm (8:50–9:30 pm)
- Likely visibility: fair. Swell (up to 3.9 ft at 5 s) and rain (0.71 in) over the last few days have stirred up the water. Based on the last 24 hours of data.
- Water at 84.7 °F: a shorty or a rash guard.
- Snorkeling: better not, with these waves, wind or current.
- Night dive: dark from 6:12 pm. Waning gibbous (87%), rising at 8:56 pm: a bright night.
Your diving day at a glance
The best window, 2:30 pm to 4:00 pm, combines slack water at high tide, light wind and weak current. Also worth a look from 9:10 am to 10:10 am, with slack water at low tide, light wind, weak current and the sun high, 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.
Dive sites, wrecks and dive shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Nilgiri 3.3 mi
- Medhufaaru 3.6 mi
- Thermopylae Sierra 4.2 mi
- Vela VI 4.3 mi
- Pecheur Breton 4.7 mi
- Astoria 7.7 mi
- Wreck 7.8 mi
- Wreck 8.4 mi
- Wreck 8.4 mi
- Island Scuba 1.2 mi
- Dive With Praveen 2.2 mi
- Niwlibyan Trades 7.6 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 Dehiwala-Mount Lavinia
Now in Dehiwala-Mount Lavinia
- Low / high
- 75 / 83 °F
- Rain
- 0.79 in · 94%
- Clouds
- 92%
- Humidity
- 98%
- Dew pointDew point
- 74 °F
- Visibility
- 11 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Fair · 30
- 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 (−0.01 inHg in 3 hours). Over the next 48 hours: +0.04 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 | Drizzle | Drizzle | Drizzle | Drizzle | Showers | Drizzle | Light drizzle | Overcast |
| Temperature | 77° | 75° | 76° | 81° | 83° | 80° | 77° | 76° |
| Wind (mph) | 3 ESE | 4 ESE | 4 ESE | 4 S | 6 SW | 4 SSW | 4 SE | 5 ESE |
| Gusts | 6 | 9 | 11 | 13 | 16 | 14 | 11 | 9 |
| Waves | 4.5 ft | 4.5 ft | 4.3 ft | 4.2 ft | 4.0 ft | 3.9 ft | 3.8 ft | 3.7 ft |
| Rain | 0.02 in | 0.03 in | 0.02 in | 0.04 in | 0.12 in | 0.02 in | 0.00 in | 0.00 in |
- 3:00 am 75° 4 ESE 4.5 ft
- 6:00 am 76° 4 ESE 4.3 ft
- 9:00 am 81° 4 S 4.2 ft
- 12:00 pm 83° 6 SW 4.0 ft
- 3:00 pm 80° 4 SSW 3.9 ft
- 6:00 pm 77° 4 SE 3.8 ft
- 9:00 pm 76° 5 ESE 3.7 ft
- 12:00 am 75° 4 ESE 3.7 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 29 | 75 / 83 °F | 6 mph SSE | 4.5 ft | 3:26 am · 3:18 pm | |
| Fri 30 | 73 / 87 °F | 7 mph S | 3.7 ft | 4:00 am · 3:49 pm | |
| Sat 31 | 73 / 86 °F | 7 mph ENE | 3.2 ft | 4:35 am · 4:25 pm | |
| Sun 1 | 72 / 85 °F | 6 mph SSE | 2.4 ft | 5:13 am · 5:14 pm | |
| Mon 2 | 73 / 86 °F | 8 mph S | 2.3 ft | 6:06 am · 8:03 pm | |
| Tue 3 | 72 / 85 °F | 8 mph S | 2.8 ft | 8:17 am · 10:30 pm | |
| Wed 4 | 73 / 84 °F | 5 mph ENE | 2.8 ft | 10:10 am · 11:24 pm | |
| Thu 5 | 73 / 88 °F | 3 mph ENE | 2.7 ft | 11:17 am | |
| Fri 6 | 73 / 87 °F | 4 mph ESE | 2.5 ft | 12:02 am · 12:05 pm | |
| Sat 7 | 73 / 86 °F | 5 mph NE | 3.0 ft | 12:35 am · 12:45 pm | |
| Sun 8 | 72 / 85 °F | 5 mph E | 3.0 ft | 1:06 am · 1:19 pm | |
| Mon 9 | 73 / 85 °F | 5 mph ESE | 2.7 ft | 1:36 am · 1:50 pm | |
| Tue 10 | 71 / 85 °F | 7 mph SE | 2.6 ft | 2:04 am · 2:18 pm | |
| Wed 11 | 71 / 85 °F | 4 mph NE | 2.6 ft | 2:32 am · 2:43 pm |
- Fri 30 Light drizzle 73° / 87° 3.7 ft
- Sat 31 Drizzle 73° / 86° 3.2 ft
- Sun 1 Drizzle 72° / 85° 2.4 ft
- Mon 2 Drizzle 73° / 86° 2.3 ft
- Tue 3 Light drizzle 72° / 85° 2.8 ft
- Wed 4 Heavy drizzle 73° / 84° 2.8 ft
- Thu 5 Showers 73° / 88° 2.7 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 They don't agree · low confidence: unsure about rain on Saturday 31. 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 (−4.5 °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 3:28 am (local time).
The sun in Dehiwala-Mount Lavinia
Sunrise and sunset
- First light 5:11 am
- Full dark 6:37 pm
- Civil dawn 5:36 am
- Civil dusk 6:12 pm
- Solar noon 11:54 am (70° high)
- Daylight 11 h 54 min (−0 min)
- Evening golden hour 5:23 pm
- Full dark 6:37 pm
Golden hour and the day-night map
Today the sun is 92,340,919 mi away and looks 32′ 11″ across.
The moon in Dehiwala-Mount Lavinia
Moon phase and position
Today the moon is 226,531 mi away and looks 32′ 46″ across.
Solunar periods
Today's activity: medium- 1:21–3:21 am Major · the moon passes overhead · high activity
- 1:54–3:54 pm Major · the moon passes underfoot · high activity
- 8:22–9:22 am Minor · moonset · medium activity
- 8:26–9:26 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 Mon, Nov 2 · 1:59 amNov 2 in 4 days
- New moon Mon, Nov 9 · 12:33 pmNov 9 in 11 days
- First quarter Tue, Nov 17 · 5:18 pmNov 17 in 19 days
- Full moon Tue, Nov 24 · 8:24 pmNov 24 in 26 days
Next perigee (the moon at its closest to Earth): November 26, 223,281 mi away.
Where to fish in Dehiwala-Mount Lavinia
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Pettah Floating Market 6.5 mi
- Jetty 7.0 mi
- Jetty 7.7 mi
- Lumbini Aquaria 4.4 mi
- Boat ramp 7.0 mi
- Port of Colombo 8.0 mi
- Fine Fish 2.4 mi
- Golden Fresh Fish 4.1 mi
- Lanka Fish Market 5.0 mi
- RS Fishing Tackles 5.8 mi
- Sea Lion Fishing Tackles and Diving Equipment 5.8 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.
Water depth
Gentle slopeThe bottom slopes gently: 16 ft deep 0.4 mi from shore and 33 ft at 0.9 mi.
From the shoreline (0.6 mi from Dehiwala-Mount Lavinia) out to sea, heading west.
How far from shore
- 16 ft deep0.4 mi
- 33 ft deep0.9 mi
- 66 ft deep1.9 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. Shallow near shore: you only reach 33 ft at 0.9 mi. For dives deeper than 33 ft, 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 Dehiwala-Mount LaviniaTides nearby
- Sri Jayewardenepura Kotte3.8 mi
- Pita Kotte4.1 mi
- Moratuwa4.7 mi
- Kolonnawa6.5 mi
- Colombo6.8 mi
- Maligawatta7.1 mi
- Kotahena7.3 mi
- Peliyagoda8.9 mi
- Panadura9.0 mi
- Wattala10 mi
Dehiwala-Mount Lavinia at a glance
- Town or city of about 219,827 people. Coordinates: 6.840° N, 79.871° E.
- It is 6.8 mi south of Colombo, the main place in Western Province. The sun rises at the same time and sets at the same time than in Colombo.
- The nearest tide station, Colombo, is 6.6 mi to the north.
- Its coast faces west.
- Beaches and harbors nearby: Mt Lavinia Beach (0.6 mi).
Questions about Dehiwala-Mount LaviniaQuestions
What time is high tide today in Dehiwala-Mount Lavinia?
Today in Dehiwala-Mount Lavinia there are high tides at 3:26 am (2.8 ft) and 3:18 pm (2.1 ft) and low tides at 9:39 am and 9:07 pm. Tide coefficient 96.
What time is sunset today in Dehiwala-Mount Lavinia?
At 5:51 pm. There is light until the end of civil twilight, at 6:12 pm.
What time is sunrise tomorrow in Dehiwala-Mount Lavinia?
At 5:57 am. First light comes at 5:11 am.
What phase is the moon today?
Waning gibbous, 87% illuminated. New moon on Mon, Nov 9 · 12:33 pm.
When are the next spring tides?
From November 10 to 12.
What are today's solunar periods?
Major 1:21–3:21 am, Minor 8:22–9:22 am, Major 1:54–3:54 pm, Minor 8:26–9:26 pm. Today's activity is medium.
What's the weather like today in Dehiwala-Mount Lavinia?
Showers, from 75 °F to 83 °F, with a light breeze from the east-southeast (4 mph) and a 94% chance of rain.
How is the sea today in Dehiwala-Mount Lavinia?
Moderate (Douglas 4): 4.5 ft waves with a period of 6.8 s from the southwest. The water is 84.7 °F.
When is the best time to visit Dehiwala-Mount Lavinia?
The best time to visit Dehiwala-Mount Lavinia is from January to February and from July to August: highs of 87 °F to 90 °F, about 11 rainy days a month and 7 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: Colombo 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).