Portrush tides today
- Tide now 5.4 ft ↓ falling · low 1:42 am (0.9 ft)
- Best time tomorrow 1:50–2:40 am good day · 7/10
- Beach day Not today Not a beach day · 0/10
- Waves · water 4.8 ft · 55 °F moderate · 10.1 s from the northwest
- Wind · air 9 mph · 52 °F from the SSE, gusts 15 · overcast
- Surf tomorrow 2.6–4.0 ft Good day · 6/10 · 7:00–11:00 am
- Sun 7:23 am–4:57 pm 9 h 35 min of daylight
- Moon 92% · 5:24 pm waning gibbous · rises at 5:24 pm
Today in Portrush there are high tides at 7:23 am (5.8 ft) and 7:50 pm (5.8 ft) and low tides at 1:02 am and 1:30 pm. Tide coefficient 108. Right now the tide is falling toward the low tide at 1:42 am. The sun rises at 7:23 am and sets at 4:57 pm: 9 h 35 min of daylight. The moon is 92% illuminated (waning gibbous) and rises at 5:24 pm. Major solunar periods run from 12:50 am to 2:50 am and from 1:21 pm to 3:21 pm. The next spring tides arrive from October 26 to 28. The sea is moderate, with 4.8 ft waves. There's a gentle breeze from the south-southeast (9 mph). Overcast, 52 °F.
Fishing in Portrush today
Best time to fish
Solunar activity today: high- Low tide at 1:30 pm
- Major period 1:21–3:21 pm
- Rising pressure (+0.49 inHg in 24 h), light offshore wind (11 mph) and 5.7 ft waves
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 108 (big spring tides)
- A minor period lines up with sunset
Your day at a glance
The best window, 1:20 pm to 2:30 pm, combines the 1:30 pm low tide and a major period, though with rising pressure. Also worth a try from 6:40 am to 8:20 am, with the 7:23 am high tide and sunrise, though with rising pressure. Also worth a try from 12:50 am to 2:00 am, with the 1:02 am low tide and a major period, though with rising pressure and moderate wind.
Species with the most records nearby: small-spotted catshark, whiting, haddock and European flounder. October is one of the months when these are seen most: European flounder and Atlantic horse mackerel. What you can catch
Beach day in Portrush
Is it a beach day?
- Low tide at 1:30 pm: more sand
- Cloudy (88% cloud cover)
- Feels like 52 °F: chilly for the beach
- Moderate offshore wind (15 mph): it blows floats and inflatables out to sea
- Dangerous for swimming: 6.4 ft waves every 10 s; high rip current risk
- Water at 55 °F (very cold)
Dangerous surf during beach hours. Stay out if the red flag is up, and never swim where there is no lifeguard.
Today, hour by hour
- Swimming Dangerous · 6.4 ft
6.4 ft waves every 10 s: dangerous for swimming. Stay out if the red flag is up. High rip current risk. If you're caught in a rip current, don't swim against it: swim parallel to shore and wave for help. Always follow the lifeguard's flags.
- Water 55 °F
Very cold: ease in and keep swims short.
- Sun & sunscreen UV 1 · SPF 15
Max UV 1 (low): SPF 15 sunscreen.
- Wind 15 mph
Moderate offshore wind (15 mph). Skip the inflatables: offshore wind carries them out to sea.
- Tide & sand 1:02 am
Low tide at 1:02 am and 1:30 pm: that's when there's the most sand. High tide at 7:23 am and 7:50 pm. Coefficient 108 (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 Portrush
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- West Strand 0.5 mi · NW
- RNLI lifeguards in season
- Restrooms
- Parking
Excellent water quality 2025 season, DAERA
- East Strand 1.0 mi · NE
- RNLI lifeguards in season
- Restrooms
- Showers
- Parking
Excellent water quality 2025 season, DAERA
- Portstewart Beach 4.3 mi · SW
Excellent water quality 2025 season, DAERA
- Portballintrae Beach 4.3 mi · E
- Restrooms
- Parking
Excellent water quality 2025 season, DAERA
- Runkerry Stand (Bushfoot) 5.0 mi · E
- Parking
- Castlerock Beach 5.6 mi · W
- RNLI lifeguards in season
- Restrooms
- Parking
Excellent water quality 2025 season, DAERA
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: DAERA. 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 Portrush
Webcams provided by windy.com — add a webcam
Tides in Portrush
Today's high and low tides
- ▼ Low tide 1:02 am 0.7 ft
- ▲ High tide 7:23 am 5.8 ft · coef. 108
- ▼ Low tide 1:30 pm 0.8 ft
- ▲ High tide 7:50 pm 5.8 ft · coef. 104
↓ Falling The tide is falling. 4 h 48 min to low tide at 1:42 am.
Tide coefficient 108 for the 7:23 am high tide and 104 for the 7:50 pm high tide. Big spring tides. The water rises and falls 5.1 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 13 (7.6 ft) and the lowest, on February 4 (0.1 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 27 (coefficient 111, 5.6 ft range). The smallest, on October 18 (coefficient 31, 1.3 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 | 7:23 am · 4:57 pm | Low tide 1:02 am · 0.7 ft | High tide 7:23 am · 5.8 ft | Low tide 1:30 pm · 0.8 ft | High tide 7:50 pm · 5.8 ft | Coef. 108 | 92% | Major periods 12:50 am · 1:21 pm | High |
| Thu 29 | 7:25 am · 4:55 pm | Low tide 1:42 am · 0.9 ft | High tide 8:07 am · 5.6 ft | Low tide 2:17 pm · 1.1 ft | High tide 8:38 pm · 5.2 ft | Coef. 98 | 85% | Major periods 1:53 am · 2:25 pm | High |
| Fri 30 | 7:27 am · 4:53 pm | Low tide 2:26 am · 1.3 ft | High tide 8:57 am · 5.3 ft | Low tide 3:13 pm · 1.6 ft | High tide 9:34 pm · 4.5 ft | Coef. 82 | 76% | Major periods 2:58 am · 3:30 pm | Medium |
| Sat 31 | 7:29 am · 4:51 pm | Low tide 3:15 am · 1.8 ft | High tide 9:59 am · 4.9 ft | Low tide 4:39 pm · 2.1 ft | High tide 10:57 pm · 3.9 ft | Coef. 63 | 65% | Major periods 4:01 am · 4:31 pm | Medium |
| Sun 1 | 7:31 am · 4:49 pm | Low tide 4:14 am · 2.2 ft | High tide 11:58 am · 4.5 ft | Low tide 7:27 pm · 2.1 ft | — | Coef. 50 | Last quarter | Major periods 4:59 am · 5:27 pm | Low |
| Mon 2 | 7:33 am · 4:47 pm | High tide 1:12 am · 3.6 ft | Low tide 5:35 am · 2.4 ft | High tide 1:51 pm · 4.5 ft | Low tide 8:44 pm · 1.7 ft | Coef. 49 | 43% | Major periods 5:53 am · 6:18 pm | Medium |
| Tue 3 | 7:35 am · 4:45 pm | High tide 2:24 am · 3.5 ft | Low tide 7:29 am · 2.2 ft | High tide 2:57 pm · 4.5 ft | Low tide 9:40 pm · 1.5 ft | Coef. 55 | 32% | Major periods 6:43 am · 7:06 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
Tides from the Portrush station (Environment Agency), 0.4 mi from Portrush. Times and heights are its predictions.
Station data attribution: This uses Environment Agency tide gauge data from the real-time data API (Beta): Portrush (E73924), https://environment.data.gov.uk/flood-monitoring/id/stations/E73924. 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 Portrush
Sea stateSea state: moderate
The waves you may find
- Most commonMost common2.4 ft
- Significant4.8 ft
- Highest expectedHighest9.5 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 9.5 ft. Before heading out, expect waves of up to 9.5 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: 7.3 ft with a period of 11 s, from the northwest (moderate).
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 8:54 pm (local time).
Surf in Portrush today
Surf today
Good- 3.9–6.0 ft surf at the shore, a good size with some punch
- 5.5 ft swell at 9 s from the northwest, a bit short
- Light offshore wind (11 mph): it holds up and grooms the waves
- Rising tide (high tide at 7:50 pm)
- Light: First light 6:44 am · sunrise 7:23 am · sunset 4:57 pm · last light 5:35 pm
- Tide: low 1:02 am (0.7 ft), high 7:23 am (5.8 ft), low 1:30 pm (0.8 ft) and high 7:50 pm (5.8 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 54.7 °F: a 5/4 fullsuit with booties (and a hood if it’s windy).
- Energy: 420 kJ · Medium power
Today’s surf at a glance
The best window, 2:00 pm to 5:35 pm, has a good size and light offshore wind. 7:00 am to 11:00 am also works, with a good size and light offshore 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 Portrush today
Diving and snorkeling today
Likely visibility: poor- Slack water around low tide (1:30 pm): little current from 1:15 pm to 1:45 pm
- 5.7 ft swell at 9 s from the northwest: strong surge on the bottom
- Light cross-shore wind (12 mph)
- 0.8 mph current toward the west (model)
- Sun high: more light underwater
Not a day for shore diving: swell, wind, current or storms during the best window. If you go, go with a dive shop and only if they give the OK.
- Slack water today: low tide 1:02 am (12:47–1:17 am), high tide 7:23 am (7:08–7:38 am), low tide 1:30 pm (1:15–1:45 pm) and high tide 7:50 pm (7:35–8:05 pm)
- Likely visibility: poor. Swell (up to 7.0 ft at 10 s) over the last few days has stirred up the water. Based on the last 24 hours of data.
- Water at 54.7 °F: a 7 mm semi-dry suit, with hood, gloves and booties.
- Snorkeling: better not, with these waves, wind or current.
- Night dive: dark from 5:35 pm. Waning gibbous (92%), rising at 5:24 pm: a bright night.
Your diving day at a glance
The best window, 12:40 pm to 1:30 pm, combines slack water at low tide, light wind and the sun high, though with a big swell and 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
- Towy 1.4 mi
- Devereux 1.8 mi
- Girona 6.8 mi
- HMS Assurance 11 mi
- Wreck 6.9 mi
- Wreck 8.0 mi
- Freedive Northern Ireland 0.8 mi
- Red Duck Diving 3.5 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 Portrush
Now in Portrush
- Low / high
- 48 / 56 °F
- Rain
- 0.03 in · 98%
- Clouds
- 94%
- Humidity
- 92%
- Dew pointDew point
- 49 °F
- Visibility
- 9.2 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Fair · 26
- 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 (+0.02 inHg in 3 hours). Over the next 48 hours: +0.15 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 | Overcast | Overcast | Overcast |
| Temperature | 48° | 52° | 52° | 53° | 56° | 56° | 54° | 52° |
| Wind (mph) | 15 S | 13 SSW | 11 SW | 10 SW | 14 WSW | 11 SW | 6 S | 9 SSE |
| Gusts | 28 | 28 | 19 | 19 | 26 | 20 | 11 | 16 |
| Waves | 7.3 ft | 7.1 ft | 6.7 ft | 6.2 ft | 5.9 ft | 5.6 ft | 5.2 ft | 4.8 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 52° 9 SSE 4.8 ft
- 12:00 am 51° 10 SSE 4.5 ft
- 3:00 am 51° 10 SSE 4.1 ft
- 6:00 am 50° 11 SSE 3.7 ft
- 9:00 am 51° 13 SSE 3.2 ft
- 12:00 pm 55° 13 SSE 3.0 ft
- 3:00 pm 56° 14 SSE 2.6 ft
- 6:00 pm 54° 14 SSE 2.5 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 28 | 48 / 56 °F | 17 mph SSW | 7.3 ft | 7:23 am · 7:50 pm | |
| Thu 29 | 50 / 56 °F | 17 mph SSE | 4.5 ft | 8:07 am · 8:38 pm | |
| Fri 30 | 53 / 58 °F | 22 mph SSE | 2.6 ft | 8:57 am · 9:34 pm | |
| Sat 31 | 51 / 54 °F | 13 mph SE | 3.1 ft | 9:59 am · 10:57 pm | |
| Sun 1 | 51 / 52 °F | 11 mph N | 3.1 ft | 11:58 am | |
| Mon 2 | 40 / 54 °F | 8 mph ENE | 2.7 ft | 1:12 am · 1:51 pm | |
| Tue 3 | 38 / 51 °F | 5 mph SSE | 1.6 ft | 2:24 am · 2:57 pm | |
| Wed 4 | 43 / 51 °F | 5 mph SE | 2.0 ft | 3:16 am · 3:49 pm | |
| Thu 5 | 44 / 52 °F | 10 mph SE | 1.8 ft | 3:57 am · 4:30 pm | |
| Fri 6 | 44 / 51 °F | 15 mph SE | 1.9 ft | 4:30 am · 5:03 pm | |
| Sat 7 | 39 / 49 °F | 8 mph SE | 1.4 ft | 5:00 am · 5:29 pm | |
| Sun 8 | 35 / 46 °F | 6 mph ESE | 1.6 ft | 5:31 am · 5:54 pm | |
| Mon 9 | 46 / 53 °F | 8 mph ESE | 1.9 ft | 6:04 am · 6:21 pm | |
| Tue 10 | 50 / 54 °F | 8 mph E | 2.1 ft | 6:40 am · 6:50 pm |
- Thu 29 Overcast 50° / 56° 4.5 ft
- Fri 30 Light showers 53° / 58° 2.6 ft
- Sat 31 Light rain 51° / 54° 3.1 ft
- Sun 1 Overcast 51° / 52° 3.1 ft
- Mon 2 Overcast 40° / 54° 2.7 ft
- Tue 3 Overcast 38° / 51° 1.6 ft
- Wed 4 Overcast 43° / 51° 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 Partly agree · medium confidence: unsure about rain today. 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 (+2.7 °F; normal high: 54 °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 Portrush
Sunrise and sunset
- First light 6:02 am
- Full dark 6:18 pm
- Civil dawn 6:44 am
- Civil dusk 5:35 pm
- Solar noon 12:10 pm (22° high)
- Daylight 9 h 35 min (−4 min)
- Evening golden hour 4:03 pm
- Full dark 6:18 pm
Golden hour and the day-night map
Today the sun is 92,359,410 mi away and looks 32′ 11″ across.
The moon in Portrush
Moon phase and position
Today the moon is 226,451 mi away and looks 32′ 47″ across.
Solunar periods
Today's activity: high- 12:50–2:50 am Major · the moon passes overhead · high activity
- 1:21–3:21 pm Major · the moon passes underfoot · high activity
- 10:42–11:42 am Minor · moonset · medium activity
- 4:54–5:54 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 Portrush
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Portcoon Jetty 5.6 mi
- Jetty 5.8 mi
- Boat ramp 1.7 mi
- Boat ramp 2.9 mi
- Boat ramp 3.5 mi
- Boat ramp 4.2 mi
- Boat ramp 4.3 mi
- Boat ramp 4.4 mi
- Portandoo Harbour 1.0 mi
- Portstewart Harbour 2.9 mi
- McKergan's Port 3.0 mi
- Causeway Tackle 4.6 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 0.3 mi from shore. It reaches 164 ft at 2.8 mi.
From the shoreline (0.9 mi from Portrush) out to sea, heading north.
How far from shore
- 16 ft deep950 ft
- 33 ft deep0.3 mi
- 66 ft deep0.85 mi
- 164 ft deep2.8 mi
For fishing, swimming and diving
- Shore fishing. 33 ft of water just 0.3 mi 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 0.3 mi and 66 ft at 0.85 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.
Tides near PortrushTides nearby
- Portstewart2.7 mi
- Coleraine4.4 mi
- Bushmills5.2 mi
- Castlerock6.2 mi
- Ballintoy Harbour12 mi
- Greencastle13 mi
- Moville15 mi
- Ballycastle16 mi
- Ballykelly18 mi
- Culdaff21 mi
Portrush at a glance
- Town or city of about 6,684 people. Coordinates: 55.196° N, 6.649° W.
- The nearest tide station, Portrush, is 0.4 mi to the north.
- Its coast faces north.
- Beaches and harbors nearby: Portstewart Beach (3.6 mi), Portstewart Strand (4.3 mi).
Questions about PortrushQuestions
What time is high tide today in Portrush?
Today in Portrush there are high tides at 7:23 am (5.8 ft) and 7:50 pm (5.8 ft) and low tides at 1:02 am and 1:30 pm. Tide coefficient 108.
What time is sunset today in Portrush?
At 4:57 pm. There is light until the end of civil twilight, at 5:35 pm.
What time is sunrise tomorrow in Portrush?
At 7:25 am. First light comes at 6:03 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 12:50–2:50 am, Minor 10:42–11:42 am, Major 1:21–3:21 pm, Minor 4:54–5:54 pm. Today's activity is high.
What's the weather like today in Portrush?
Light showers, from 48 °F to 56 °F, with a gentle breeze from the south-southeast (9 mph) and a 98% chance of rain.
How is the sea today in Portrush?
Moderate (Douglas 4): 4.8 ft waves with a period of 10.1 s from the northwest. The water is 54.7 °F.
When is the best time to visit Portrush?
The best time to visit Portrush is from June to August: highs of 62 °F to 65 °F, about 14 rainy days a month and 5 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: Portrush 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).