Amlwch tides today
- Tide now 20.4 ft ↑ rising · high 11:54 pm (27.5 ft)
- Best time tomorrow 6:30–7:40 am average day · 6/10
- Beach day Not today Not a beach day · 0/10
- Waves · water 1.9 ft · 56 °F slight · 3.8 s from the southwest
- Wind · air 9 mph · 55 °F from the SSW, gusts 15 · overcast
- Sun 7:09 am–4:53 pm 9 h 44 min of daylight
- Moon 92% · 5:30 pm waning gibbous · rises at 5:30 pm
- Diving tomorrow 11:40 am–12:30 pm average day · 6/10
Today in Amlwch there are high tides at 11:31 am (27.5 ft) and 11:54 pm (27.5 ft) and low tides at 5:53 am and 6:17 pm. Tide coefficient 91. Right now the tide is rising toward the high tide at 11:54 pm. The sun rises at 7:09 am and sets at 4:53 pm: 9 h 44 min of daylight. The moon is 92% illuminated (waning gibbous) and rises at 5:30 pm. Major solunar periods run from 12:40 am to 2:40 am and from 1:11 pm to 3:11 pm. The next spring tides arrive from October 26 to 28. The sea is slight, with 1.9 ft waves. There's a gentle breeze from the south-southwest (9 mph). Overcast, 55 °F.
Fishing in Amlwch today
Best time to fish
Solunar activity today: high- Low tide at 6:17 pm
- Minor period 5:00–6:00 pm (moonrise)
- Sunset at 4:53 pm, golden hour from 4:02 pm
- Rising pressure (+0.34 inHg in 24 h), light offshore wind (10 mph) and some swell (2.0 ft waves) to stir the water
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 91 (spring tides)
- A minor period lines up with sunset
Your day at a glance
The best window, 5:20 pm to 6:00 pm, combines the 6:17 pm low tide, moonrise, sunset and some swell, though with rising pressure. Also worth a try from 10:30 am to 11:20 am, with the 11:31 am high tide, moonset and some swell, though with rising pressure and moderate wind.
Species with the most records nearby: small-spotted catshark, European plaice, whiting and thornback ray. October is one of the months when these are seen most: European plaice and whiting. What you can catch
Beach day in Amlwch
Is it a beach day?
- Calm for swimming: 3.5 ft waves
- Cloudy (81% cloud cover)
- Feels like 52 °F: chilly for the beach
- Fresh offshore wind (19 mph): it blows floats and inflatables out to sea
- Water at 56 °F (very cold)
- High tide at 11:31 am, coefficient 91: little sand left
Today, hour by hour
- Swimming Calm · 3.5 ft
3.5 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
- Water 56 °F
Very cold: ease in and keep swims short.
- Sun & sunscreen UV 1 · SPF 15
Max UV 1 (low): SPF 15 sunscreen.
- Wind 19 mph
Fresh offshore wind (19 mph): blowing sand. Skip the inflatables: offshore wind carries them out to sea.
- Tide & sand 5:53 am
Low tide at 5:53 am and 6:17 pm: that's when there's the most sand. High tide at 11:31 am and 11:54 pm. Coefficient 91 (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 Amlwch
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Dulas Beach 3.7 mi · SE
- Traeth yr Ora 4.1 mi · SE
- Traeth Mawr 4.2 mi · W
- Restrooms
- Parking
Sufficient water quality 2025 season, Natural Resources Wales
- Traeth Bach 4.4 mi · W
- Restrooms
- Parking
- Lligwy Beach 4.9 mi · SE
- Restrooms
- Parking
Excellent water quality 2025 season, Natural Resources Wales
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: Natural Resources Wales. Contains public sector information licensed under the Open Government Licence v3.0. Full attribution.
Webcams near Amlwch
Webcams provided by windy.com — add a webcam
Tides in Amlwch
Today's high and low tides
- ▼ Low tide 5:53 am 3.7 ft
- ▲ High tide 11:31 am 27.5 ft · coef. 91
- ▼ Low tide 6:17 pm 3.7 ft
- ▲ Next high tide 11:54 pm 27.5 ft · coef. 90
↑ Rising The tide is rising. 2 h 2 min to high tide at 11:54 pm.
Tide coefficient 91 for the 11:31 am high tide and 90 for the 11:54 pm high tide. Spring tides. The water rises and falls 23.8 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 August 15 (28.2 ft) and the lowest, on August 14 (1.5 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 92, 24.3 ft range). The smallest, from October 19 to 20 (coefficient 36, 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, Wed 28 | 7:09 am · 4:53 pm | Low tide 5:53 am · 3.7 ft | High tide 11:31 am · 27.5 ft | Low tide 6:17 pm · 3.7 ft | High tide 11:54 pm · 27.5 ft | Coef. 91 | 92% | Major periods 12:40 am · 1:11 pm | High |
| Thu 29 | 7:10 am · 4:51 pm | Low tide 6:37 am · 4.3 ft | High tide 12:13 pm · 27.2 ft | Low tide 7:03 pm · 4.2 ft | — | Coef. 88 | 85% | Major periods 1:43 am · 2:16 pm | Medium |
| Fri 30 | 7:12 am · 4:49 pm | High tide 12:40 am · 26.7 ft | Low tide 7:24 am · 5.4 ft | High tide 1:01 pm · 26.5 ft | Low tide 7:55 pm · 5.1 ft | Coef. 85 | 76% | Major periods 2:48 am · 3:20 pm | Medium |
| Sat 31 | 7:14 am · 4:47 pm | High tide 1:33 am · 25.4 ft | Low tide 8:17 am · 6.7 ft | High tide 1:55 pm · 25.4 ft | Low tide 8:54 pm · 6.1 ft | Coef. 76 | 65% | Major periods 3:51 am · 4:21 pm | Medium |
| Sun 1 | 7:16 am · 4:45 pm | High tide 2:35 am · 23.8 ft | Low tide 9:19 am · 8.0 ft | High tide 2:59 pm · 24.0 ft | Low tide 10:03 pm · 7.0 ft | Coef. 66 | Last quarter | Major periods 4:50 am · 5:17 pm | Medium |
| Mon 2 | 7:18 am · 4:43 pm | High tide 3:50 am · 22.4 ft | Low tide 10:31 am · 8.8 ft | High tide 4:19 pm · 23.0 ft | Low tide 11:20 pm · 7.2 ft | Coef. 57 | 43% | Major periods 5:44 am · 6:09 pm | Medium |
| Tue 3 | 7:20 am · 4:41 pm | High tide 5:16 am · 21.9 ft | Low tide 11:49 am · 8.9 ft | High tide 5:45 pm · 22.9 ft | — | Coef. 56 | 32% | Major periods 6:33 am · 6:57 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
Amlwch has no station of its own, so we use the tide at Llandudno (Environment Agency), 22 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 tide gauge data from the real-time data API (Beta): Llandudno (E73324), https://environment.data.gov.uk/flood-monitoring/id/stations/E73324. 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 15-minute sea levels of 2025-10-29 to 2026-10-22 (356 days).
The sea at Amlwch
Sea stateSea state: slight
The waves you may find
- Most commonMost common1.0 ft
- Significant1.9 ft
- Highest expectedHighest4.0 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 4.0 ft. Before heading out, expect waves of up to 4.0 ft.
Wind on the coast and offshore
Offshore wind. The coast faces north 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 ease over the next few days. The biggest waves arrive on Wednesday 28: 3.9 ft with a period of 5 s, from the southwest (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 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 9:51 pm (local time).
Surf in Amlwch today
Surf today
Poor- 0.7–1.1 ft surf at the shore, small: good for learning or a longboard
- 0.7 ft swell at 8 s from the southwest, short: weak, messy waves; this coast faces away from it
- 3.4 ft wind swell at 4 s: messy waves
- Fresh offshore wind (19 mph): it holds up and grooms the waves
- Rising tide (high tide at 11:31 am)
- Light: First light 6:32 am · sunrise 7:09 am · sunset 4:53 pm · last light 5:29 pm
- Tide: low 5:53 am (3.7 ft), high 11:31 am (27.5 ft), low 6:17 pm (3.7 ft) and high 11:54 pm (27.5 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 55.8 °F: a 5/4 fullsuit with booties (and a hood if it’s windy).
- Energy: 40 kJ · Low power
Today’s surf at a glance
The best window, 7:00 am to 11:00 am, has light offshore wind, though with small waves, a short-period swell and wind 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 Amlwch today
Diving and snorkeling today
Likely visibility: fair- Slack water around high tide (11:31 am): little current from 11:10 am to 11:50 am
- 3.1 ft surface waves
- Moderate offshore wind (17 mph): it pushes surface swimmers away from shore
- 0.2 mph current toward the north-northwest, weak (model)
- Sun high: more light underwater
- Slack water today: low tide 5:53 am (5:30–6:20 am), high tide 11:31 am (11:10–11:50 am), low tide 6:17 pm (5:50–6:40 pm) and high tide 11:54 pm (11:39 pm–12:10 am)
- Likely visibility: fair. Rain (0.21 in) and wind over the last few days have stirred up the water. Based on the last 24 hours of data.
- Water at 55.8 °F: a 7 mm semi-dry suit, with hood, gloves and booties.
- Snorkeling: doable, with some waves or wind.
- Night dive: dark from 5:29 pm. Waning gibbous (92%), rising at 5:30 pm: a bright night.
Your diving day at a glance
The best window, 10:40 am to 11:30 am, combines slack water at high tide, weak current and the sun high, though with moderate wind. Also worth a look from 3:50 pm to 5:30 pm, with little swell, 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
- Dakota 0.7 mi
- La Plata 2.2 mi
- Liverpool 3.2 mi
- President Harbitz 3.3 mi
- Mary Coles 3.5 mi
- Apapa 4.7 mi
- Wern 5.4 mi
- Abbotsford 5.5 mi
- Wreck 3.2 mi
- Wreck 3.5 mi
- Wreck 3.8 mi
- Wreck 4.4 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 Amlwch
Now in Amlwch
- Low / high
- 52 / 58 °F
- Rain
- 0.13 in · 100%
- Clouds
- 100%
- Humidity
- 95%
- Dew pointDew point
- 53 °F
- Visibility
- 8.3 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Fair · 28
- Saharan dust
- No
- Pollen
- None
Pressure and fishing
- ↗ RisingRising · now Anglers say fish bite less for a while
- → SteadySteady Anglers expect normal activity
- ↘ FallingFalling Anglers say fish feed more before the change
Rising now (+0.03 inHg in 3 hours). Over the next 48 hours: +0.15 inHg. Rising pressure: anglers say fish bite less for a while. 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 | Partly cloudy | Light rain | Light rain | Partly cloudy | Partly cloudy | Overcast | Overcast | Overcast |
| Temperature | 52° | 54° | 56° | 56° | 57° | 57° | 54° | 55° |
| Wind (mph) | 19 SW | 21 SW | 22 SW | 18 WSW | 17 WSW | 14 WSW | 10 SSW | 9 SSW |
| Gusts | 31 | 33 | 39 | 30 | 30 | 27 | 15 | 15 |
| Waves | 3.5 ft | 3.8 ft | 3.9 ft | 3.4 ft | 3.0 ft | 2.5 ft | 2.0 ft | 1.9 ft |
| Rain | 0.00 in | 0.03 in | 0.01 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in |
- 9:00 pm 55° 9 SSW 1.9 ft
- 12:00 am 54° 9 SSW 2.0 ft
- 3:00 am 54° 8 SSW 1.8 ft
- 6:00 am 54° 8 S 1.6 ft
- 9:00 am 55° 9 S 1.6 ft
- 12:00 pm 57° 14 S 1.6 ft
- 3:00 pm 57° 10 S 1.5 ft
- 6:00 pm 54° 4 SSE 1.4 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 28 | 52 / 58 °F | 23 mph SW | 3.9 ft | 11:31 am · 11:54 pm | |
| Thu 29 | 51 / 57 °F | 14 mph S | 2.0 ft | 12:13 pm | |
| Fri 30 | 49 / 58 °F | 12 mph S | 1.8 ft | 12:40 am · 1:01 pm | |
| Sat 31 | 47 / 58 °F | 5 mph SSW | 0.9 ft | 1:33 am · 1:55 pm | |
| Sun 1 | 49 / 56 °F | 10 mph NNE | 1.3 ft | 2:35 am · 2:59 pm | |
| Mon 2 | 45 / 53 °F | 11 mph E | 1.7 ft | 3:50 am · 4:19 pm | |
| Tue 3 | 41 / 53 °F | 8 mph ENE | 1.2 ft | 5:16 am · 5:45 pm | |
| Wed 4 | 42 / 52 °F | 8 mph E | 2.0 ft | 6:37 am · 7:01 pm | |
| Thu 5 | 42 / 53 °F | 9 mph E | 2.4 ft | 7:41 am · 8:01 pm | |
| Fri 6 | 40 / 51 °F | 7 mph ENE | 1.9 ft | 8:31 am · 8:48 pm | |
| Sat 7 | 35 / 49 °F | 4 mph ENE | 3.3 ft | 9:12 am · 9:29 pm | |
| Sun 8 | 43 / 51 °F | 5 mph ENE | 3.0 ft | 9:48 am · 10:04 pm | |
| Mon 9 | 49 / 57 °F | 10 mph SSE | 3.1 ft | 10:21 am · 10:37 pm | |
| Tue 10 | 51 / 55 °F | 2 mph E | 1.7 ft | 10:53 am · 11:08 pm |
- Thu 29 Overcast 51° / 57° 2.0 ft
- Fri 30 Overcast 49° / 58° 1.8 ft
- Sat 31 Overcast 47° / 58° 0.9 ft
- Sun 1 Overcast 49° / 56° 1.3 ft
- Mon 2 Overcast 45° / 53° 1.7 ft
- Tue 3 Overcast 41° / 53° 1.2 ft
- Wed 4 Overcast 42° / 52° 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.
- The models They agree · high confidence for the next few days. See the models →
- Outlook Next few weeks, compared with normal: normal temperatures, normal rain and a slightly warmer sea. See the outlook →
- Normal Today, warmer than normal for late October (+2.6 °F; normal high: 55 °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 9:51 pm (local time).
The sun in Amlwch
Sunrise and sunset
- First light 5:51 am
- Full dark 6:10 pm
- Civil dawn 6:32 am
- Civil dusk 5:29 pm
- Solar noon 12:01 pm (23° high)
- Daylight 9 h 44 min (−4 min)
- Evening golden hour 4:02 pm
- Full dark 6:10 pm
Golden hour and the day-night map
Today the sun is 92,359,566 mi away and looks 32′ 11″ across.
The moon in Amlwch
Moon phase and position
Today the moon is 226,451 mi away and looks 32′ 47″ across.
Solunar periods
Today's activity: high- 12:40–2:40 am Major · the moon passes overhead · high activity
- 1:11–3:11 pm Major · the moon passes underfoot · high activity
- 10:17–11:17 am Minor · moonset · medium activity
- 5:00–6:00 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 Amlwch
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Pier Bach 4.4 mi
- Llyn Blodyn Fishery 4.8 mi
- Boat ramp 0.6 mi
- Boat ramp 1.3 mi
- Boat ramp 2.2 mi
- Boat ramp 4.3 mi
- Boat ramp 6.1 mi
- Porth Amlwch 0.7 mi
- Tackle shop 0.1 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
Deepens quicklyThe bottom deepens quickly: 33 ft of water 800 ft from shore.
From the shoreline (0.5 mi from Amlwch) out to sea, heading north.
How far from shore
- 16 ft deep700 ft
- 33 ft deep800 ft
- 66 ft deep0.45 mi
- 164 ft deepnot within 3.1 mi
For fishing, swimming and diving
- Shore fishing. 33 ft of water just 800 ft from shore: a good cast reaches deep water. Current and surf hit harder here.
- Swimming. The water gets deeper little by little, but a few dozen yards out you can no longer stand.
- Diving. Shore diving works here: 33 ft at 800 ft and 66 ft at 0.45 mi from shore.
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
Amlwch Lighthouse 0.7 mi northeast
- Tower height
- 36 ft
- Built
- 1817
Other lighthouses nearby: Point Lynas Lighthouse (2.4 mi east).
Data from Wikidata. For reference only: not for navigation. Wikipedia · Wikidata · Sources and licenses
Tides near AmlwchTides nearby
- Cemaes Bay4.3 mi
- Benllech7.9 mi
- Bodedern10 mi
- Valley12 mi
- Llangoed13 mi
- Holyhead14 mi
- Rhosneigr14 mi
- Llanfairpwllgwyngyll14 mi
- Menai Bridge15 mi
- Beaumaris15 mi
Amlwch at a glance
- Town or city of about 3,211 people. Coordinates: 53.410° N, 4.347° W.
- It is 14 mi northeast of Holyhead, the main place in Anglesey. The sun rises 1 min earlier and sets 1 min earlier than in Holyhead.
- The nearest tide station, Llandudno, is 22 mi to the east.
- Its coast faces north.
- Beaches and harbors nearby: Traeth Lligwy (4.9 mi).
Questions about AmlwchQuestions
What time is high tide today in Amlwch?
Today in Amlwch there are high tides at 11:31 am (27.5 ft) and 11:54 pm (27.5 ft) and low tides at 5:53 am and 6:17 pm. Tide coefficient 91.
What time is sunset today in Amlwch?
At 4:53 pm. There is light until the end of civil twilight, at 5:29 pm.
What time is sunrise tomorrow in Amlwch?
At 7:10 am. First light comes at 5:53 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 12:40–2:40 am, Minor 10:17–11:17 am, Major 1:11–3:11 pm, Minor 5:00–6:00 pm. Today's activity is high.
What's the weather like today in Amlwch?
Light rain, from 52 °F to 58 °F, with a gentle breeze from the south-southwest (9 mph) and a 100% chance of rain.
How is the sea today in Amlwch?
Slight (Douglas 3): 1.9 ft waves with a period of 3.8 s from the southwest. The water is 56.1 °F.
When is the best time to visit Amlwch?
The best time to visit Amlwch is from June to August: highs of 63 °F to 66 °F, about 12 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: Llandudno tide gauge (UK National Tide Gauge Network). This uses Environment Agency tide gauge 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).