Worthing tides today
- Tide now 7.4 ft ↑ rising · high 12:40 am (19.3 ft)
- Best time tomorrow 6:10–7:30 am good day · 7/10
- Beach day Not today Not a beach day · 0/10
- Waves · water 2.7 ft · 58 °F slight · 6.7 s from the west-southwest
- Wind · air 9 mph · 56 °F from the W, gusts 13 · overcast
- Sun 6:46 am–4:44 pm 9 h 57 min of daylight
- Moon 92% · 5:32 pm waning gibbous · rises at 5:32 pm
- Diving tomorrow 6:50–7:30 am good day · 8/10
Today in Worthing there is high tide at 12:15 pm (19.8 ft) and low tides at 5:53 am and 6:15 pm. Tide coefficient 92. Right now the tide is rising toward the high tide at 12:40 am. The sun rises at 6:46 am and sets at 4:44 pm: 9 h 57 min of daylight. The moon is 92% illuminated (waning gibbous) and rises at 5:32 pm. Major solunar periods run from 12:23 am to 2:23 am and from 12:55 pm to 2:55 pm. The next spring tides arrive from October 26 to 28. The sea is slight, with 2.7 ft waves. There's a gentle breeze from the west (9 mph). Overcast, 56 °F.
Fishing in Worthing today
Best time to fish
Solunar activity today: high- Low tide at 5:53 am
- Sunrise at 6:46 am
- Rising pressure (+0.58 inHg in 24 h), moderate cross-shore wind (18 mph) and some swell (3.5 ft waves) to stir the water
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 92 (spring tides)
- A minor period lines up with sunset
Your day at a glance
The best window, 6:10 am to 6:50 am, combines the 5:53 am low tide, sunrise and some swell, though with rising pressure and moderate wind. Also worth a try from 12:20 am to 1:00 am, with the 11:57 pm high tide, a major period and some swell, though with rising pressure.
Species with the most records nearby: European plaice, small-spotted catshark, thornback ray and common sole. October is one of the months when these are seen most: thornback ray and whiting. What you can catch
Beach day in Worthing
Is it a beach day?
- Sun and clouds
- Feels like 53 °F: chilly for the beach
- Fresh onshore wind (20 mph): blowing sand
- Swim with care: 3.9 ft waves every 6 s
- Water at 58 °F (very cold)
- High tide at 12:15 pm, coefficient 92: little sand left
Today, hour by hour
- Swimming Use care · 3.9 ft
3.9 ft waves every 6 s: swim with care and stay where you can stand. 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 20 mph
Fresh onshore wind (20 mph): blowing sand.
- Tide & sand 5:53 am
Low tide at 5:53 am and 6:15 pm: that's when there's the most sand. High tide at 12:15 pm. Coefficient 92 (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 Worthing
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Worthing Beach 0.8 mi · SW
- Restrooms
Good water quality 2025 season, Environment Agency
- Goring Beach 2.0 mi · SW
- Parking
Good water quality 2025 season, Environment Agency
- Lancing Beach 2.9 mi · E
- Restrooms
- Parking
Good water quality 2025 season, Environment Agency
- Kingston Beach 5.7 mi · E
- Restrooms
- 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).
UK bathing water quality: Environment Agency. Contains public sector information licensed under the Open Government Licence v3.0. Full attribution.
Webcams near Worthing
Webcams provided by windy.com — add a webcam
Tides in Worthing
Today's high and low tides
- ▼ Low tide 5:53 am 2.1 ft
- ▲ High tide 12:15 pm 19.8 ft · coef. 92
- ▼ Low tide 6:15 pm 2.0 ft
↑ Rising The tide is rising. 3 h 46 min to high tide at 12:40 am.
Tide coefficient 92 for the 12:15 pm high tide. Spring tides. The water rises and falls 17.8 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 October 27 (19.9 ft) and the lowest, on March 20 (0.8 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 93, 17.8 ft range). The smallest, from October 19 to 20 (coefficient 34, 6.5 ft).
Tide and solunar table · this week
| Day | Sun | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|---|---|
| Today, Wed 28 | 6:46 am · 4:44 pm | Low tide 5:53 am · 2.1 ft | High tide 12:15 pm · 19.8 ft | Low tide 6:15 pm · 2.0 ft | — | Coef. 92 | 92% | Major periods 12:23 am · 12:55 pm | High |
| Thu 29 | 6:48 am · 4:42 pm | High tide 12:40 am · 19.3 ft | Low tide 6:34 am · 2.6 ft | High tide 12:58 pm · 19.3 ft | Low tide 6:58 pm · 2.4 ft | Coef. 90 | 85% | Major periods 1:27 am · 1:59 pm | Medium |
| Fri 30 | 6:50 am · 4:40 pm | High tide 1:25 am · 18.8 ft | Low tide 7:19 am · 3.3 ft | High tide 1:43 pm · 18.5 ft | Low tide 7:45 pm · 3.2 ft | Coef. 84 | 76% | Major periods 2:32 am · 3:03 pm | Medium |
| Sat 31 | 6:51 am · 4:38 pm | High tide 2:14 am · 18.0 ft | Low tide 8:09 am · 4.3 ft | High tide 2:33 pm · 17.4 ft | Low tide 8:40 pm · 4.2 ft | Coef. 75 | 65% | Major periods 3:34 am · 4:04 pm | Medium |
| Sun 1 | 6:53 am · 4:36 pm | High tide 3:10 am · 17.0 ft | Low tide 9:12 am · 5.3 ft | High tide 3:35 pm · 16.2 ft | Low tide 9:51 pm · 5.1 ft | Coef. 65 | Last quarter | Major periods 4:33 am · 5:01 pm | Medium |
| Mon 2 | 6:55 am · 4:35 pm | High tide 4:22 am · 16.1 ft | Low tide 10:38 am · 6.1 ft | High tide 4:57 pm · 15.3 ft | Low tide 11:17 pm · 5.6 ft | Coef. 55 | 43% | Major periods 5:27 am · 5:52 pm | Medium |
| Tue 3 | 6:57 am · 4:33 pm | High tide 5:49 am · 15.7 ft | Low tide 12:08 pm · 6.0 ft | High tide 6:26 pm · 15.3 ft | — | Coef. 52 | 32% | Major periods 6:17 am · 6:40 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
Worthing has no station of its own, so we use the tide at Arun Platform (TICON-4), 6.1 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 Worthing
Sea stateSea state: slight
The waves you may find
- Most commonMost common1.4 ft
- Significant2.7 ft
- Highest expectedHighest5.6 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 5.6 ft. Before heading out, expect waves of up to 5.6 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: 4.3 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 cools over the next few days: about 57.1 °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 8:54 pm (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 Worthing today
Surf today
Poor- 2.0–3.1 ft surf at the shore, a fun size for most surfers
- 2.4 ft swell at 7 s from the southwest, short: weak, messy waves
- 2.2 ft wind swell at 3 s: messy waves
- Light cross-shore wind (11 mph): a bit of chop
- Rising tide (high tide at 12:15 pm)
- Light: First light 6:12 am · sunrise 6:46 am · sunset 4:44 pm · last light 5:18 pm
- Tide: low 5:53 am (2.1 ft), high 12:15 pm (19.8 ft) and low 6:15 pm (2.0 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 58.1 °F: a 4/3 fullsuit (booties if you run cold).
- Energy: 58 kJ · Low power
Today’s surf at a glance
The best window, 8:00 am to 11:00 am, has a good size, though with a short-period swell, wind swell and cross-shore wind. 6:12 am to 7:00 am can also work, with a good size, though with a short-period swell and onshore wind. 4:00 pm to 5:00 pm can also work, with a good size, though with a short-period swell, wind swell and cross-shore 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.
Diving in Worthing today
Diving and snorkeling today
Likely visibility: fair- Tidal current running: mid-tide, the water is moving
- 2.2 ft swell at 7 s from the southwest: some surge on the bottom
- Moderate onshore wind (15 mph)
- 0.4 mph current toward the west, weak (model)
- Sun high: more light underwater
- Slack water today: high tide 11:57 pm (11:40 pm–12:20 am), low tide 5:53 am (5:30–6:20 am), high tide 12:15 pm (12:00–12:30 pm) and low tide 6:15 pm (5:50–6:40 pm)
- Likely visibility: fair. Swell (up to 3.5 ft at 5 s) and wind over the last few days have stirred up the water. Based on the last 24 hours of data.
- Water at 58.1 °F: a 7 mm wetsuit, with hood and booties.
- Snorkeling: better not, with these waves, wind or current.
- Night dive: dark from 5:18 pm. Waning gibbous (92%), rising at 5:32 pm: a bright night.
Your diving day at a glance
The best window, 10:30 am to 11:30 am, combines weak current and the sun high, though with tidal current and moderate wind.
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
- Indiana 2.3 mi
- Miown 5.2 mi
- Del Rio 5.5 mi
- Frode 5.7 mi
- Wreck 4.0 mi
- Ocean View Diving 2.2 mi
- Brighton BSAC '007' SCUBA Diving Club 4.6 mi
- HMS Ariadne (Wreck) 7.2 mi
- Stormforce Diving 7.4 mi
- Oyster Diving Shop 7.5 mi
- Abyss Scuba School 7.8 mi
- Scubacool Ltd. 7.8 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 Worthing
Now in Worthing
- Low / high
- 49 / 58 °F
- Rain
- 0.00 in · 0%
- Clouds
- 100%
- Humidity
- 88%
- Dew pointDew point
- 53 °F
- Visibility
- 13 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Fair · 33
- 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 (+0.01 inHg in 3 hours). Over the next 48 hours: +0.05 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 | Clear | Clear | Mainly clear | Overcast | Overcast | Partly cloudy | Partly cloudy | Overcast |
| Temperature | 49° | 49° | 54° | 56° | 58° | 58° | 58° | 56° |
| Wind (mph) | 4 NW | 5 WNW | 9 WSW | 11 W | 19 WSW | 15 WSW | 14 W | 8 W |
| Gusts | 10 | 8 | 10 | 21 | 19 | 19 | 19 | 13 |
| Waves | 4.3 ft | 3.8 ft | 3.5 ft | 3.7 ft | 3.9 ft | 3.7 ft | 3.2 ft | 2.7 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 pm 56° 8 W 2.7 ft
- 12:00 am 53° 2 NW 2.3 ft
- 3:00 am 52° 3 NNE 1.9 ft
- 6:00 am 53° 4 NE 1.7 ft
- 9:00 am 55° 2 NNE 1.5 ft
- 12:00 pm 57° 4 E 1.4 ft
- 3:00 pm 57° 6 ESE 1.2 ft
- 6:00 pm 57° 5 E 1.3 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 28 | 49 / 58 °F | 20 mph W | 4.3 ft | 12:15 pm | |
| Thu 29 | 52 / 57 °F | 9 mph ENE | 2.3 ft | 12:40 am · 12:58 pm | |
| Fri 30 | 51 / 58 °F | 15 mph ENE | 1.9 ft | 1:25 am · 1:43 pm | |
| Sat 31 | 50 / 57 °F | 9 mph NE | 2.0 ft | 2:14 am · 2:33 pm | |
| Sun 1 | 49 / 55 °F | 8 mph NNE | 1.6 ft | 3:10 am · 3:35 pm | |
| Mon 2 | 47 / 54 °F | 13 mph NNE | 2.4 ft | 4:22 am · 4:57 pm | |
| Tue 3 | 46 / 57 °F | 13 mph NNE | 2.4 ft | 5:49 am · 6:26 pm | |
| Wed 4 | 45 / 53 °F | 11 mph NE | 3.3 ft | 7:07 am · 7:38 pm | |
| Thu 5 | 42 / 53 °F | 11 mph ENE | 3.3 ft | 8:11 am · 8:36 pm | |
| Fri 6 | 41 / 53 °F | 11 mph ENE | 2.0 ft | 9:02 am · 9:24 pm | |
| Sat 7 | 41 / 52 °F | 9 mph E | 3.2 ft | 9:46 am · 10:06 pm | |
| Sun 8 | 49 / 57 °F | 7 mph SSE | 2.2 ft | 10:25 am · 10:44 pm | |
| Mon 9 | 55 / 58 °F | 9 mph SSE | 2.7 ft | 11:00 am · 11:19 pm | |
| Tue 10 | 55 / 60 °F | 13 mph SSW | 3.7 ft | 11:32 am · 11:53 pm |
- Thu 29 Overcast 52° / 57° 2.3 ft
- Fri 30 Partly cloudy 51° / 58° 1.9 ft
- Sat 31 Overcast 50° / 57° 2.0 ft
- Sun 1 Overcast 49° / 55° 1.6 ft
- Mon 2 Overcast 47° / 54° 2.4 ft
- Tue 3 Overcast 46° / 57° 2.4 ft
- Wed 4 Overcast 45° / 53° 3.3 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.
- Normal Today, warmer than normal for late October (+1.8 °F; normal high: 57 °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 8:54 pm (local time).
The sun in Worthing
Sunrise and sunset
- First light 5:33 am
- Full dark 5:56 pm
- Civil dawn 6:12 am
- Civil dusk 5:18 pm
- Solar noon 11:45 am (26° high)
- Daylight 9 h 57 min (−4 min)
- Evening golden hour 3:56 pm
- Full dark 5:56 pm
Golden hour and the day-night map
Today the sun is 92,359,836 mi away and looks 32′ 11″ across.
The moon in Worthing
Moon phase and position
Today the moon is 226,451 mi away and looks 32′ 47″ across.
Solunar periods
Today's activity: high- 12:23–2:23 am Major · the moon passes overhead · high activity
- 12:55–2:55 pm Major · the moon passes underfoot · high activity
- 9:42–10:42 am Minor · moonset · medium activity
- 5:02–6:02 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 4 days
- New moon Mon, Nov 9 · 7:03 amNov 9 in 12 days
- First quarter Tue, Nov 17 · 11:48 amNov 17 in 20 days
- Full moon Tue, Nov 24 · 2:54 pmNov 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 Worthing
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Worthing Pier 0.7 mi
- Shoreham West Breakwater 5.6 mi
- Alderwood Ponds 6.1 mi
- Chalk Springs Trout Fishery 8.8 mi
- Boat ramp 0.6 mi
- Yacht Club Slipway 1.6 mi
- Goring Green Slipway 1.9 mi
- Lancing Sailing Club 2.7 mi
- Southwick Marina 6.2 mi
- Tacklebox Mail Order 0.6 mi
- Prime Angling 0.6 mi
- Fuel dock 7.9 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 29 ft deep.
From the shoreline (0.65 mi from Worthing) out to sea, heading south.
How far from shore
- 16 ft deep1.5 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 1.5 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.
Nearest lighthouse
Shoreham Lighthouse 5.6 mi east
- Light
- A white flash every 10 s · Fl W 10s
- Range
- 10 nautical miles (12 mi)
- Light height
- 43 ft above sea level
- Tower height
- 39 ft
- Built
- 1846
Light details: NGA List of Lights (USA); the rest from Wikidata. For reference only: not for navigation. Wikipedia · Wikidata · Sources and licenses
Tides near WorthingTides nearby
- Broadwater0.8 mi
- Goring-by-Sea2.1 mi
- Lancing2.4 mi
- Shoreham-by-Sea4.6 mi
- Rustington5.8 mi
- Portslade7.2 mi
- Littlehampton7.2 mi
- Hove9.1 mi
- Brighton10 mi
- Brighton and Hove11 mi
Worthing at a glance
- Town or city of about 113,866 people. Coordinates: 50.818° N, 0.375° W.
- It is 18 mi east of Chichester, the main place in West Sussex. The sun rises 2 min earlier and sets 2 min earlier than in Chichester.
- The nearest tide station, Arun Platform, is 6.1 mi to the southwest.
- Its coast faces south.
- Beaches and harbors nearby: Sussex Yacht Club (4.6 mi).
Questions about WorthingQuestions
What time is high tide today in Worthing?
Today in Worthing there is high tide at 12:15 pm (19.8 ft) and low tides at 5:53 am and 6:15 pm. Tide coefficient 92.
What time is sunset today in Worthing?
At 4:44 pm. There is light until the end of civil twilight, at 5:18 pm.
What time is sunrise tomorrow in Worthing?
At 6:48 am. First light comes at 5:35 am.
What phase is the moon today?
Waning gibbous, 92% illuminated. New moon on Mon, Nov 9 · 7:03 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 9:42–10:42 am, Major 12:55–2:55 pm, Minor 5:02–6:02 pm. Today's activity is high.
What's the weather like today in Worthing?
Overcast, from 49 °F to 58 °F, with a gentle breeze from the west (9 mph) and a 0% chance of rain.
How is the sea today in Worthing?
Slight (Douglas 3): 2.7 ft waves with a period of 6.7 s from the west-southwest. The water is 58.1 °F.
When is the best time to visit Worthing?
The best time to visit Worthing is from July to August: highs of 72 °F to 73 °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: Arun Platform 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).