Winchelsea Beach tides today
- Tide now 2.5 ft ↑ rising · high 12:37 pm (21.8 ft)
- Best time to fish 6:30–8:30 pm average day · 6/10
- Beach day Not today Not a beach day · 0/10
- Waves · water 1.4 ft · 58 °F smooth · 7.9 s from the west-southwest
- Wind · air 2 mph · 53 °F from the NNW, gusts 3 · fog
- Sun 6:44 am–4:37 pm 9 h 53 min of daylight
- Moon 85% · 6:23 pm waning gibbous · rises at 6:23 pm
- Best time to dive 12:00–1:50 pm great day · 10/10
Today in Winchelsea Beach there are high tides at 12:21 am (21.8 ft) and 12:37 pm (21.8 ft) and low tides at 7:04 am and 7:29 pm. Tide coefficient 87. Right now the tide is rising toward the high tide at 12:37 pm. The sun rises at 6:44 am and sets at 4:37 pm: 9 h 53 min of daylight. The moon is 85% illuminated (waning gibbous) and rises at 6:23 pm. Major solunar periods run from 1:22 am to 3:22 am and from 1:55 pm to 3:55 pm. The next spring tides arrive from November 9 to 11. The sea is smooth, with 1.4 ft waves. There's a light air from the north-northwest (2 mph). Fog, 53 °F.
Fishing in Winchelsea Beach today
Best time to fish
Solunar activity today: medium- Low tide at 7:04 am
- Sunrise at 6:44 am
- Rising pressure (+0.10 inHg in 24 h), almost no wind and calm sea (1.4 ft waves)
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 87 (average tides)
- A major period lines up with sunset
Your day at a glance
The best window, 6:10 am to 7:30 am, combines the 7:04 am low tide and sunrise, though with rising pressure. Also good from 6:30 pm to 8:30 pm, with the 7:29 pm low tide, moonrise and a light onshore breeze.
Species with the most records nearby: European plaice, common sole, whiting and thornback ray. October is one of the months when these are seen most: thornback ray and Atlantic horse mackerel. What you can catch
Beach day in Winchelsea Beach
Is it a beach day?
- Offshore breeze (4 mph)
- Calm for swimming: 1.4 ft waves
- Low tide at 7:04 am: more sand
- Fog
- Feels like 58 °F: chilly for the beach
- Water at 58 °F (very cold)
Today, hour by hour
- Swimming Calm · 1.4 ft
1.4 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
- Water 58 °F
Very cold: ease in and keep swims short.
- Sun & sunscreen UV 1 · SPF 15
Max UV 1 (low): SPF 15 sunscreen.
- Wind 4 mph
Offshore breeze (4 mph).
- Tide & sand 7:29 pm
Low tide at 7:04 am and 7:29 pm: that's when there's the most sand. High tide at 12:21 am and 12:37 pm.
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 Winchelsea Beach
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Winchelsea Beach 0.7 mi · S
- Parking
Good water quality 2025 season, Environment Agency
- Camber Sands 3.1 mi · E
- RNLI lifeguards in season
- Restrooms
- Parking
Good water quality 2025 season, Environment Agency
- Fairlight Glen Naturist Beach 5.3 mi · SW
- Nudity allowed
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).
UK bathing water quality: Environment Agency. Contains public sector information licensed under the Open Government Licence v3.0. Full attribution. Lifeguards: RNLI. Contains Open Data licensed under the GIS Open Data Licence.
Webcams near Winchelsea Beach
Webcams provided by windy.com — add a webcam
Tides in Winchelsea Beach
Today's high and low tides
- ▲ High tide 12:21 am 21.8 ft · coef. 87
- ▼ Low tide 7:04 am 2.4 ft
- ▲ Next high tide 12:37 pm 21.8 ft · coef. 86
- ▼ Low tide 7:29 pm 2.2 ft
↑ Rising The tide is rising. 4 h 53 min to high tide at 12:37 pm.
Tide coefficient 87 for the 12:21 am high tide and 86 for the 12:37 pm high tide. Average coefficient. The water rises and falls 19.6 ft between the highest high and the lowest low: an average 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 21 (22.8 ft) and the lowest, on September 11 (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 9 to 11 (coefficient 92, 21.3 ft range). The smallest, on October 20 (coefficient 38, 8.9 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 | 6:44 am · 4:37 pm | High tide 12:21 am · 21.8 ft | Low tide 7:04 am · 2.4 ft | High tide 12:37 pm · 21.8 ft | Low tide 7:29 pm · 2.2 ft | Coef. 87 | 85% | Major periods 1:22 am · 1:55 pm | Medium |
| Fri 30 | 6:46 am · 4:35 pm | High tide 1:02 am · 21.1 ft | Low tide 7:58 am · 2.3 ft | High tide 1:20 pm · 20.9 ft | Low tide 8:21 pm · 2.2 ft | Coef. 84 | 76% | Major periods 2:27 am · 2:59 pm | Medium |
| Sat 31 | 6:47 am · 4:33 pm | High tide 1:50 am · 20.1 ft | Low tide 8:54 am · 2.5 ft | High tide 2:13 pm · 19.6 ft | Low tide 9:17 pm · 2.5 ft | Coef. 78 | 65% | Major periods 3:30 am · 4:00 pm | Medium |
| Sun 1 | 6:49 am · 4:32 pm | High tide 2:50 am · 18.9 ft | Low tide 9:54 am · 2.9 ft | High tide 3:19 pm · 18.2 ft | Low tide 10:20 pm · 3.2 ft | Coef. 70 | Last quarter | Major periods 4:29 am · 4:56 pm | Medium |
| Mon 2 | 6:51 am · 4:30 pm | High tide 4:02 am · 17.8 ft | Low tide 11:04 am · 3.4 ft | High tide 4:37 pm · 17.1 ft | Low tide 11:38 pm · 3.8 ft | Coef. 62 | 43% | Major periods 5:23 am · 5:48 pm | Medium |
| Tue 3 | 6:52 am · 4:28 pm | High tide 5:21 am · 17.2 ft | Low tide 12:28 pm · 3.6 ft | High tide 6:00 pm · 16.9 ft | — | Coef. 58 | 32% | Major periods 6:12 am · 6:36 pm | Medium |
| Wed 4 | 6:54 am · 4:27 pm | Low tide 1:13 am · 3.6 ft | High tide 6:40 am · 17.7 ft | Low tide 1:54 pm · 2.9 ft | High tide 7:15 pm · 17.6 ft | Coef. 65 | 23% | Major periods 6:58 am · 7:21 pm | Medium |
▲ 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
Winchelsea Beach has no station of its own, so we use the tide at Rye Harbour (Environment Agency), 2.2 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: This uses Environment Agency flood and river level data from the real-time data API (Beta): Rye Harbour (E6415), https://environment.data.gov.uk/flood-monitoring/id/stations/E6415. Contains public sector information licensed under the Open Government Licence v3.0 (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/). Modified: harmonic constants fitted by TidePlanet from the measured tidal levels of 2025-10-29 to 2026-10-22 (356 days).
The sea at Winchelsea Beach
Sea stateSea state: smooth
The waves you may find
- Most commonMost common0.7 ft
- Significant1.4 ft
- Highest expectedHighest2.9 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 2.9 ft. Before heading out, expect waves of up to 2.9 ft.
Wind on the coast and offshore
Offshore wind. The coast faces south and the wind blows from land out to sea: calm shore and clean waves, but watch the drift out to sea.
Wave height, next 7 daysWaves, next 7 days
Waves build over the next few days. The biggest waves arrive on Tuesday 3: 3.2 ft with a period of 4 s, from the northeast (slight).
Water temperature
Water temperature →The satellite measured 3.2 °F more 2 days ago than the model gives now: the water is probably warmer than the forecast says.
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 7:43 am (local time).
Nearest buoy
This is a real measurement of the sea, not a forecast. Data from Channel Coastal Observatory (CCO), National Network of Regional Coastal Monitoring Programmes (NNRCMP), via the E.U. Copernicus Marine Service. Generated using E.U. Copernicus Marine Service Information (doi:10.48670/moi-00036).
Surf in Winchelsea Beach today
Surf today
Poor- 0.9–1.3 ft surf at the shore, small: good for learning or a longboard
- 1.4 ft swell at 6 s from the west-southwest, short: weak, messy waves
- Almost no wind (2 mph): glassy water
- First or last light of the day
- Rising tide (high tide at 12:37 pm)
- Light: First light 6:09 am · sunrise 6:44 am · sunset 4:37 pm · last light 5:11 pm
- Tide: high 12:21 am (21.8 ft), low 7:04 am (2.4 ft), high 12:37 pm (21.8 ft) and low 7:29 pm (2.2 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 57.7 °F: a 4/3 fullsuit (booties if you run cold).
- Energy: 13 kJ · Low power
Today’s surf at a glance
The best window, 6:09 am to 10:00 am, has glassy water, though with small waves and 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 Winchelsea Beach today
Diving and snorkeling today
Likely visibility: good- Slack water around high tide (12:37 pm): little current from 12:20 pm to 1:00 pm
- 1.1 ft swell at 8 s from the west-southwest: barely any surge
- Light onshore wind (4 mph)
- 0.3 mph current toward the northwest, weak (model)
- Sun high: more light underwater
- Slack water today: high tide 12:21 am (12:06–12:50 am), low tide 7:04 am (6:20–8:30 am), high tide 12:37 pm (12:20–1:00 pm) and low tide 7:29 pm (6:50–8:50 pm)
- Likely visibility: good. Swell (up to 2.9 ft at 5 s) over the last few days has stirred up the water. Based on the last 24 hours of data.
- Water at 57.7 °F: a 7 mm wetsuit, with hood and booties.
- Snorkeling: good, calm sea and light wind.
- Night dive: dark from 5:11 pm. Waning gibbous (85%), rising at 6:23 pm: a bright night.
Your diving day at a glance
The best window, 12:00 pm to 1:50 pm, combines slack water at high tide, little swell, light wind, weak current and the sun high. Also good from 7:30 am to 8:30 am, with slack water at low tide, little swell, 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
- HMS Anne 2.1 mi
- Veerman 4.3 mi
- HMS Caulonia 4.8 mi
- Robin Hood 5.1 mi
- Evg(no Rx152)? 5.1 mi
- Lady Alice 5.4 mi
- Swale 5.9 mi
- Lepanto/le Panto/panta/panto 6.0 mi
- Actuality 7.0 mi
- Ceta (stern Section) 8.1 mi
- Eagle 8.4 mi
- Wreck 6.1 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 Winchelsea Beach
Now in Winchelsea Beach
- Low / high
- 48 / 58 °F
- Rain
- 0.00 in · 0%
- Clouds
- 98%
- Humidity
- 95%
- Dew pointDew point
- 51 °F
- Visibility
- 3.2 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Fair · 39
- 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 (+0.03 inHg in 3 hours). Over the next 48 hours: +0.09 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 | Fog | Fog | Overcast | Mainly clear | Mainly clear | Partly cloudy |
| Temperature | 55° | 56° | 54° | 54° | 56° | 57° | 58° | 58° |
| Wind (mph) | 7 W | 3 WSW | 3 SSW | 4 NNE | 3 ENE | 1 ESE | 5 ESE | 7 E |
| Gusts | 12 | 5 | 4 | 4 | 6 | 3 | 6 | 9 |
| Waves | 2.0 ft | 1.7 ft | 1.5 ft | 1.4 ft | 1.2 ft | 1.1 ft | 1.0 ft | 1.0 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 |
- 9:00 am 54° 4 NNE 1.4 ft
- 12:00 pm 56° 3 ENE 1.2 ft
- 3:00 pm 57° 1 ESE 1.1 ft
- 6:00 pm 58° 5 ESE 1.0 ft
- 9:00 pm 58° 7 E 1.0 ft
- 12:00 am 46° 6 NW 1.2 ft
- 3:00 am 45° 6 NW 1.2 ft
- 6:00 am 46° 6 N 1.2 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 29 | 48 / 58 °F | 8 mph ENE | 2.0 ft | 12:21 am · 12:37 pm | |
| Fri 30 | 45 / 57 °F | 20 mph ENE | 2.0 ft | 1:02 am · 1:20 pm | |
| Sat 31 | 50 / 55 °F | 17 mph ENE | 2.0 ft | 1:50 am · 2:13 pm | |
| Sun 1 | 49 / 54 °F | 7 mph NNE | 1.8 ft | 2:50 am · 3:19 pm | |
| Mon 2 | 47 / 55 °F | 13 mph N | 3.1 ft | 4:02 am · 4:37 pm | |
| Tue 3 | 46 / 54 °F | 14 mph NNE | 3.2 ft | 5:21 am · 6:00 pm | |
| Wed 4 | 45 / 53 °F | 10 mph NE | 2.7 ft | 6:40 am · 7:15 pm | |
| Thu 5 | 43 / 52 °F | 11 mph ENE | 2.9 ft | 7:46 am · 8:14 pm | |
| Fri 6 | 44 / 52 °F | 12 mph ENE | 3.0 ft | 8:39 am · 9:02 pm | |
| Sat 7 | 41 / 50 °F | 7 mph ESE | 2.8 ft | 9:25 am · 9:45 pm | |
| Sun 8 | 49 / 56 °F | 9 mph S | 2.0 ft | 10:06 am · 10:24 pm | |
| Mon 9 | 54 / 57 °F | 10 mph S | 2.3 ft | 10:44 am · 11:01 pm | |
| Tue 10 | 54 / 60 °F | 15 mph SW | 2.4 ft | 11:19 am · 11:36 pm | |
| Wed 11 | 53 / 59 °F | 13 mph SW | 1.7 ft | 11:52 am |
- Fri 30 Partly cloudy 45° / 57° 2.0 ft
- Sat 31 Overcast 50° / 55° 2.0 ft
- Sun 1 Overcast 49° / 54° 1.8 ft
- Mon 2 Overcast 47° / 55° 3.1 ft
- Tue 3 Light drizzle 46° / 54° 3.2 ft
- Wed 4 Light drizzle 45° / 53° 2.7 ft
- Thu 5 Mainly clear 43° / 52° 2.9 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 wind tomorrow. See the models →
- Outlook The next few weeks look normal for the time of year. See the outlook →
- Normal Today, warmer than normal for late October (+2.3 °F; normal high: 56 °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 7:43 am (local time).
The sun in Winchelsea Beach
Sunrise and sunset
- First light 5:31 am
- Full dark 5:50 pm
- Civil dawn 6:09 am
- Civil dusk 5:11 pm
- Solar noon 11:41 am (26° high)
- Daylight 9 h 53 min (−4 min)
- Evening golden hour 3:49 pm
- Full dark 5:50 pm
Golden hour and the day-night map
Today the sun is 92,335,598 mi away and looks 32′ 11″ across.
The moon in Winchelsea Beach
Moon phase and position
Today the moon is 226,641 mi away and looks 32′ 45″ across.
Solunar periods
Today's activity: medium- 1:22–3:22 am Major · the moon passes overhead · high activity
- 1:55–3:55 pm Major · the moon passes underfoot · high activity
- 10:55–11:55 am Minor · moonset · medium activity
- 5:53–6:53 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 Winchelsea Beach
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Admiralty Jetty 2.4 mi
- Hastings Pier 7.9 mi
- Jetty 2.4 mi
- Boat ramp 2.2 mi
- Boat ramp 2.4 mi
- Boat ramp 4.1 mi
- Boat ramp 4.8 mi
- Sues Tackle Cabin 2.3 mi
- Aj Baits 6.0 mi
- Jstackle 6.3 mi
- Knightingales Fishery In Stone 6.6 mi
- Hastings Angling Centre 7.0 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
Very shallowVery shallow and flat: 3.1 mi from shore the water is still only about 26 ft deep.
From the shoreline (0.45 mi from Winchelsea Beach) out to sea, heading south.
How far from shore
- 16 ft deep1.1 mi
- 33 ft deepnot within 3.1 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 1.1 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: the water doesn't reach 33 ft within 3.1 mi. For deeper dives, take a boat farther out.
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 Winchelsea BeachTides nearby
- Rye2.4 mi
- Pett3.0 mi
- Camber3.6 mi
- Fairlight3.9 mi
- Hastings7.5 mi
- Saint Leonards-on-Sea8.8 mi
- New Romney11 mi
- Bexhill-on-Sea12 mi
- St Mary's Bay13 mi
- Dymchurch14 mi
Winchelsea Beach at a glance
- Town or city of about 1,362 people. Coordinates: 50.917° N, 0.722° E.
- It is 7.5 mi northeast of Hastings, the main place in East Sussex. The sun rises at the same time and sets 1 min earlier than in Hastings.
- The nearest tide station, Rye Harbour, is 2.2 mi to the north.
- Its coast faces south.
- Beaches and harbors nearby: Camber Sands (3.3 mi).
Questions about Winchelsea BeachQuestions
What time is high tide today in Winchelsea Beach?
Today in Winchelsea Beach there are high tides at 12:21 am (21.8 ft) and 12:37 pm (21.8 ft) and low tides at 7:04 am and 7:29 pm. Tide coefficient 87.
What time is sunset today in Winchelsea Beach?
At 4:37 pm. There is light until the end of civil twilight, at 5:11 pm.
What time is sunrise tomorrow in Winchelsea Beach?
At 6:46 am. First light comes at 5:32 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 1:22–3:22 am, Minor 10:55–11:55 am, Major 1:55–3:55 pm, Minor 5:53–6:53 pm. Today's activity is medium.
What's the weather like today in Winchelsea Beach?
Fog, from 48 °F to 58 °F, with a light air from the north-northwest (2 mph) and a 0% chance of rain.
How is the sea today in Winchelsea Beach?
Smooth (Douglas 2): 1.4 ft waves with a period of 7.9 s from the west-southwest. The water is 57.7 °F.
When is the best time to visit Winchelsea Beach?
The best time to visit Winchelsea Beach is from July to August: highs of 71 °F, about 8 rainy days a month and 6 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: Rye Harbour tidal level station of the Environment Agency (England). This uses Environment Agency flood and river level data from the real-time data API (Beta), under the Open Government Licence v3.0; constants fitted by TidePlanet from a year of its readings. Sun and moon: our own calculation with astronomy-engine. Places: GeoNames (CC BY 4.0). Coastline: © OpenStreetMap contributors (ODbL).