Ambleteuse tides today
- Tide now 29.3 ft ↑ rising · high 1:23 am (29.7 ft)
- Best time to fish 7:50–8:30 am good day · 7/10
- Beach day Not today Not a beach day · 1/10
- Waves · water 3.0 ft · 58 °F slight · 7.2 s from the west-southwest
- Wind · air 7 mph · 58 °F from the WNW, gusts 12 · overcast
- Sun 7:40 am–5:34 pm 9 h 54 min of daylight
- Moon 85% · 7:20 pm waning gibbous · rises at 7:20 pm
- Best time to dive 9:30–10:10 am good day · 8/10
Today in Ambleteuse there are high tides at 1:23 am (29.7 ft) and 1:41 pm (29.7 ft) and low tides at 8:50 am and 9:15 pm. Tide coefficient 89. Right now the tide is rising toward the high tide at 1:23 am. The sun rises at 7:40 am and sets at 5:34 pm: 9 h 54 min of daylight. The moon is 85% illuminated (waning gibbous) and rises at 7:20 pm. Major solunar periods run from 2:19 am to 4:19 am and from 2:51 pm to 4:51 pm. The next spring tides arrive from November 9 to 11. The sea is slight, with 3.0 ft waves. There's a light breeze from the west-northwest (7 mph). Overcast, 58 °F.
Fishing in Ambleteuse today
Best time to fish
Solunar activity today: medium- Low tide at 8:50 am
- Sunrise at 7:40 am
- Rising pressure (+0.10 inHg in 24 h), light offshore wind (5 mph) and some swell (2.2 ft waves) to stir the water
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 89 (average tides)
- A major period lines up with sunset
Your day at a glance
The best window, 7:50 am to 8:30 am, combines the 8:50 am low tide, sunrise and some swell, though with rising pressure. Also good from 12:40 pm to 2:40 pm, with the 1:41 pm high tide, moonset and some swell.
Species with the most records nearby: European plaice, Atlantic horse mackerel, whiting and small-spotted catshark. October is one of the months when these are seen most: Atlantic horse mackerel. What you can catch
Beach day in Ambleteuse
Is it a beach day?
- Sun and clouds
- Offshore breeze (6 mph)
- Low tide at 8:50 am: more sand
- Feels like 60 °F: chilly for the beach
- Calm for swimming: 2.1 ft waves; moderate rip current risk
- Water at 58 °F (very cold)
Today, hour by hour
- Swimming Calm · 2.1 ft
2.1 ft waves: calm for swimming. Moderate rip current risk. Always follow the lifeguard's flags.
- Water 58 °F
Very cold: ease in and keep swims short.
- Sun & sunscreen UV 2 · SPF 15
Max UV 2 (low): SPF 15 sunscreen.
- Wind 6 mph
Offshore breeze (6 mph).
- Tide & sand 8:50 am
Low tide at 8:50 am and 9:15 pm: that's when there's the most sand. High tide at 1:23 am and 1:41 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 Ambleteuse
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Plage d'Audresselles 1.0 mi · NW
- Parking
Good water quality 2025 season, EEA
- Plage d'Ambleteuse 2.4 mi · S
- Plage Hameau du Griz Nez. 4.2 mi · N
- Parking
Good water quality 2025 season, EEA
- Dunes du Chatelet 4.8 mi · N
- Nudity allowed
Excellent water quality 2025 season, EEA
- Plage de Boulogne-sur-Mer 4.9 mi · S
- Restrooms
- Showers
- Parking
Poor 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 French Ministry of Health (baignades.sante.gouv.fr).
Webcams near Ambleteuse
Webcams provided by windy.com — add a webcam
Tides in Ambleteuse
Today's high and low tides
- ▲ Next high tide 1:23 am 29.7 ft · coef. 89
- ▼ Low tide 8:50 am 4.3 ft
- ▲ High tide 1:41 pm 29.7 ft · coef. 86
- ▼ Low tide 9:15 pm 4.3 ft
↑ Rising The tide is rising. 25 min to high tide at 1:23 am.
Tide coefficient 89 for the 1:23 am high tide and 86 for the 1:41 pm high tide. Average coefficient. The water rises and falls 25.5 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 22 (30.3 ft) and the lowest, on August 14 (1.6 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 10 to 12 (coefficient 93, 26.9 ft range). The smallest, on October 20 (coefficient 34, 9.7 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 | 7:40 am · 5:34 pm | High tide 1:23 am · 29.7 ft | Low tide 8:50 am · 4.3 ft | High tide 1:41 pm · 29.7 ft | Low tide 9:15 pm · 4.3 ft | Coef. 89 | 85% | Major periods 2:19 am · 2:51 pm | Medium |
| Fri 30 | 7:42 am · 5:32 pm | High tide 2:06 am · 28.9 ft | Low tide 9:35 am · 5.2 ft | High tide 2:24 pm · 28.6 ft | Low tide 10:01 pm · 5.2 ft | Coef. 83 | 76% | Major periods 3:23 am · 3:55 pm | Medium |
| Sat 31 | 7:43 am · 5:30 pm | High tide 2:52 am · 27.5 ft | Low tide 10:24 am · 6.4 ft | High tide 3:13 pm · 27.0 ft | Low tide 10:52 pm · 6.5 ft | Coef. 75 | 66% | Major periods 4:26 am · 4:56 pm | Medium |
| Sun 1 | 7:45 am · 5:28 pm | High tide 3:46 am · 25.7 ft | Low tide 11:18 am · 7.6 ft | High tide 4:14 pm · 25.0 ft | Low tide 11:50 pm · 7.7 ft | Coef. 64 | Last quarter | Major periods 5:25 am · 5:53 pm | Medium |
| Mon 2 | 7:47 am · 5:27 pm | High tide 4:59 am · 23.9 ft | Low tide 12:22 pm · 8.5 ft | High tide 5:43 pm · 23.5 ft | — | Coef. 55 | 43% | Major periods 6:19 am · 6:44 pm | Medium |
| Tue 3 | 7:49 am · 5:25 pm | Low tide 12:59 am · 8.4 ft | High tide 6:34 am · 23.2 ft | Low tide 1:37 pm · 8.6 ft | High tide 7:19 pm · 23.5 ft | Coef. 52 | 33% | Major periods 7:09 am · 7:32 pm | Medium |
| Wed 4 | 7:50 am · 5:23 pm | Low tide 2:19 am · 8.1 ft | High tide 7:57 am · 23.9 ft | Low tide 2:54 pm · 7.6 ft | High tide 8:32 pm · 24.6 ft | Coef. 60 | 23% | Major periods 7:55 am · 8:17 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
Ambleteuse has no station of its own, so we use the tide at Boulogne-sur-Mer (TICON-4), 5.9 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 Ambleteuse
Sea stateSea state: slight
The waves you may find
- Most commonMost common1.5 ft
- Significant3.0 ft
- Highest expectedHighest6.1 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 6.1 ft. Before heading out, expect waves of up to 6.1 ft.
Wind on the coast and offshore
Cross-onshore wind. The coast faces southwest 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 Monday 2: 3.4 ft with a period of 5 s, from the north-northeast (slight).
Water temperature
Water temperature →The satellite measured 2.7 °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 about normal for late October.
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 12:58 am (local time).
Nearest buoy
This is a real measurement of the sea, not a forecast. Data from Met Office, Exeter, via the E.U. Copernicus Marine Service. Generated using E.U. Copernicus Marine Service Information (doi:10.48670/moi-00036).
Surf in Ambleteuse today
Surf today
Fair- 1.6–2.4 ft surf at the shore, a fun size for most surfers
- 1.7 ft swell at 9 s from the west-southwest, a bit short
- Almost no wind (3 mph): glassy water
- First or last light of the day
- Falling tide (low tide at 8:50 am)
- Light: First light 7:06 am · sunrise 7:40 am · sunset 5:34 pm · last light 6:08 pm
- Tide: high 1:23 am (29.7 ft), low 8:50 am (4.3 ft), high 1:41 pm (29.7 ft) and low 9:15 pm (4.3 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 57.9 °F: a 4/3 fullsuit (booties if you run cold).
- Energy: 41 kJ · Low power
Today’s surf at a glance
The best window, 7:06 am to 9:00 am, has glassy water. 11:00 am to 3:00 pm can also work, with 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 Ambleteuse today
Diving and snorkeling today
Likely visibility: good- Some tidal current
- 1.6 ft swell at 7 s from the west-southwest: some surge on the bottom
- Light offshore wind (6 mph)
- 0.4 mph current toward the south, weak (model)
- Sun high: more light underwater
- Slack water today: high tide 1:23 am (1:08–1:40 am), low tide 8:50 am (8:20–9:10 am), high tide 1:41 pm (1:26–2:00 pm) and low tide 9:15 pm (8:40–9:40 pm)
- Likely visibility: good. Swell (up to 3.9 ft at 5 s) over the last few days has stirred up the water. Based on the last 24 hours of data.
- Water at 57.9 °F: a 7 mm wetsuit, with hood and booties.
- Snorkeling: doable, with some waves or wind.
- Night dive: dark from 6:08 pm. Waning gibbous (85%), rising at 7:20 pm: a bright night.
Your diving day at a glance
The best window, 9:30 am to 10:10 am, combines light wind, weak current and the sun high, though with tidal current. Also worth a look from 3:30 pm to 4:30 pm, with light wind and weak current, though with tidal 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
- Dotterel 2.3 mi
- Moise 2.8 mi
- Blanc Nez 2.9 mi
- Tusnastabb 3.7 mi
- Gladys 3.8 mi
- Nicolaw 3.8 mi
- Mercator 4.0 mi
- Gloire A Sainte Therese 4.0 mi
- Marie-Ange Loic 4.1 mi
- Iltis 4.3 mi
- Wreck 0.9 mi
- Wreck 1.8 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 Ambleteuse
Now in Ambleteuse
- Low / high
- 46 / 60 °F
- Rain
- 0.00 in · 12%
- Clouds
- 95%
- Humidity
- 83%
- Dew pointDew point
- 53 °F
- Visibility
- 19 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Fair · 38
- 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: +0.07 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 | Partly cloudy | Mainly clear | Partly cloudy | Clear |
| Temperature | 58° | 55° | 48° | 48° | 57° | 59° | 56° | 51° |
| Wind (mph) | 9 W | 5 W | 4 E | 6 ENE | 2 E | 3 NNW | 7 ENE | 6 ENE |
| Gusts | 13 | 6 | 6 | 7 | 7 | 7 | 11 | 9 |
| Waves | 3.1 ft | 2.8 ft | 2.4 ft | 2.1 ft | 1.8 ft | 1.6 ft | 1.5 ft | 1.4 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 58° 9 W 3.1 ft
- 3:00 am 55° 5 W 2.8 ft
- 6:00 am 48° 4 E 2.4 ft
- 9:00 am 48° 6 ENE 2.1 ft
- 12:00 pm 57° 2 E 1.8 ft
- 3:00 pm 59° 3 NNW 1.6 ft
- 6:00 pm 56° 7 ENE 1.5 ft
- 9:00 pm 51° 6 ENE 1.4 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 29 | 46 / 60 °F | 9 mph NE | 3.1 ft | 1:23 am · 1:41 pm | |
| Fri 30 | 42 / 57 °F | 12 mph ENE | 1.3 ft | 2:06 am · 2:24 pm | |
| Sat 31 | 47 / 52 °F | 9 mph ENE | 1.6 ft | 2:52 am · 3:13 pm | |
| Sun 1 | 47 / 56 °F | 8 mph NNE | 1.6 ft | 3:46 am · 4:14 pm | |
| Mon 2 | 52 / 57 °F | 19 mph NNE | 3.4 ft | 4:59 am · 5:43 pm | |
| Tue 3 | 50 / 56 °F | 13 mph NE | 3.1 ft | 6:34 am · 7:19 pm | |
| Wed 4 | 42 / 51 °F | 10 mph ENE | 2.4 ft | 7:57 am · 8:32 pm | |
| Thu 5 | 38 / 49 °F | 11 mph ENE | 2.0 ft | 9:02 am · 9:31 pm | |
| Fri 6 | 39 / 49 °F | 12 mph E | 1.3 ft | 9:56 am · 10:20 pm | |
| Sat 7 | 36 / 49 °F | 9 mph ESE | 2.0 ft | 10:40 am · 11:02 pm | |
| Sun 8 | 46 / 56 °F | 9 mph S | 1.8 ft | 11:20 am · 11:39 pm | |
| Mon 9 | 51 / 58 °F | 12 mph S | 2.5 ft | 11:55 am | |
| Tue 10 | 54 / 59 °F | 17 mph SSW | 4.8 ft | 12:12 am · 12:26 pm | |
| Wed 11 | 54 / 59 °F | 17 mph SSW | 6.5 ft | 12:42 am · 12:55 pm |
- Fri 30 Mainly clear 42° / 57° 1.3 ft
- Sat 31 Overcast 47° / 52° 1.6 ft
- Sun 1 Overcast 47° / 56° 1.6 ft
- Mon 2 Light rain 52° / 57° 3.4 ft
- Tue 3 Light drizzle 50° / 56° 3.1 ft
- Wed 4 Overcast 42° / 51° 2.4 ft
- Thu 5 Mainly clear 38° / 49° 2.0 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.
- Normal Today, warmer than normal for late October (+3.9 °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 12:58 am (local time).
The sun in Ambleteuse
Sunrise and sunset
- First light 6:27 am
- Full dark 6:47 pm
- Civil dawn 7:06 am
- Civil dusk 6:08 pm
- Solar noon 12:37 pm (26° high)
- Daylight 9 h 54 min (−4 min)
- Evening golden hour 4:46 pm
- Full dark 6:47 pm
Golden hour and the day-night map
Today the sun is 92,335,658 mi away and looks 32′ 11″ across.
The moon in Ambleteuse
Moon phase and position
Today the moon is 226,618 mi away and looks 32′ 45″ across.
Solunar periods
Today's activity: medium- 2:19–4:19 am Major · the moon passes overhead · high activity
- 2:51–4:51 pm Major · the moon passes underfoot · high activity
- 11:51 am–12:51 pm Minor · moonset · medium activity
- 6:50–7:50 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 · 9:29 pmNov 1 in 3 days
- New moon Mon, Nov 9 · 8:03 amNov 9 in 11 days
- First quarter Tue, Nov 17 · 12:48 pmNov 17 in 19 days
- Full moon Tue, Nov 24 · 3:54 pmNov 24 in 26 days
Next perigee (the moon at its closest to Earth): November 25, 223,281 mi away.
Where to fish in Ambleteuse
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Jetée Nord-est 5.6 mi
- La crèche 4.2 mi
- Digue Carnot 5.7 mi
- Boat ramp 0.5 mi
- Boat ramp 3.1 mi
- Boat ramp 3.3 mi
- Bassin Napoléon 6.0 mi
- Alcium Pêche 6.1 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 0.5 mi from shore and 33 ft at 0.6 mi.
From the shoreline (0.45 mi from Ambleteuse) out to sea, heading southwest.
How far from shore
- 16 ft deep0.5 mi
- 33 ft deep0.6 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 0.5 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. 33 ft deep 0.6 mi from shore; 66 ft is far out (beyond 3.1 mi): for deeper dives, go by boat.
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
Phare du cap Gris-Nez 4.1 mi north
- Light
- A white flash every 5 s · Fl W 5s
- Range
- 29 nautical miles (33 mi)
- Light height
- 236 ft above sea level
- Tower height
- 102 ft
- Built
- 1957
Other lighthouses nearby: Phare Carnot de Boulogne-sur-Mer (5.1 mi south).
Light details: NGA List of Lights (USA); the rest from Wikidata. For reference only: not for navigation. Wikidata · Sources and licenses
Tides near AmbleteuseTides nearby
- Wimereux2.8 mi
- Wimille3.3 mi
- Wissant5.7 mi
- Saint-Martin-Boulogne5.8 mi
- Boulogne-sur-Mer5.9 mi
- Outreau7.3 mi
- Le Portel7.4 mi
- Équihen-Plage9.5 mi
- Sangatte11 mi
- Coquelles12 mi
Ambleteuse at a glance
- Town or city of about 2,023 people. Coordinates: 50.810° N, 1.609° E.
- It is 37 mi southwest of Dunkirk, the main place in Hauts-de-France. The sun rises 3 min later and sets 4 min later than in Dunkirk.
- The nearest tide station, Boulogne-sur-Mer, is 5.9 mi to the south.
- Its coast faces southwest.
Questions about AmbleteuseQuestions
What time is high tide today in Ambleteuse?
Today in Ambleteuse there are high tides at 1:23 am (29.7 ft) and 1:41 pm (29.7 ft) and low tides at 8:50 am and 9:15 pm. Tide coefficient 89.
What time is sunset today in Ambleteuse?
At 5:34 pm. There is light until the end of civil twilight, at 6:08 pm.
What time is sunrise tomorrow in Ambleteuse?
At 7:42 am. First light comes at 6:29 am.
What phase is the moon today?
Waning gibbous, 85% illuminated. New moon on Mon, Nov 9 · 8:03 am.
When are the next spring tides?
From November 9 to 11.
What are today's solunar periods?
Major 2:19–4:19 am, Minor 11:51 am–12:51 pm, Major 2:51–4:51 pm, Minor 6:50–7:50 pm. Today's activity is medium.
What's the weather like today in Ambleteuse?
Light showers, from 46 °F to 60 °F, with a light breeze from the west-northwest (7 mph) and a 12% chance of rain.
How is the sea today in Ambleteuse?
Slight (Douglas 3): 3.0 ft waves with a period of 7.2 s from the west-southwest. The water is 57.9 °F.
When is the best time to visit Ambleteuse?
The best time to visit Ambleteuse is from July to August: highs of 69 °F to 70 °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: Boulogne-sur-Mer 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).