Crosshaven tides today
- Tide now 3.5 ft ↓ falling · low 12:43 am (1.1 ft)
- Best time tomorrow 6:50–7:40 am great day · 9/10
- Beach day Not today Not a beach day · 0/10
- Waves · water 4.6 ft · 55 °F moderate · 7.0 s from the south-southwest
- Wind · air 9 mph · 56 °F from the S, gusts 15 · overcast
- Sun 7:20 am–5:13 pm 9 h 53 min of daylight
- Moon 92% · 5:58 pm waning gibbous · rises at 5:58 pm
- Diving tomorrow 12:00–2:00 pm average day · 5/10
Today in Crosshaven there are high tides at 6:02 am (13.0 ft) and 6:23 pm (12.9 ft) and low tides at 12:02 am and 12:23 pm. Tide coefficient 96. Right now the tide is falling toward the low tide at 12:43 am. The sun rises at 7:20 am and sets at 5:13 pm: 9 h 53 min of daylight. The moon is 92% illuminated (waning gibbous) and rises at 5:58 pm. Major solunar periods run from 12:56 am to 2:56 am and from 1:28 pm to 3:28 pm. The next spring tides arrive from October 26 to 28. The sea is moderate, with 4.6 ft waves. There's a gentle breeze from the south (9 mph). Overcast, 56 °F.
Fishing in Crosshaven today
Best time to fish
Solunar activity today: high- High tide at 6:23 pm, coefficient 95
- Minor period 5:28–6:28 pm (moonrise)
- Sunset at 5:13 pm, golden hour from 4:24 pm
- Rising pressure (+0.24 inHg in 24 h), light onshore wind (6 mph) and 5.1 ft waves
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 96 (spring tides)
- A minor period lines up with sunset
Your day at a glance
The best window, 5:20 pm to 6:30 pm, combines the 6:23 pm high tide, moonrise, sunset and a light onshore breeze, though with rising pressure.
Species with the most records nearby: European hake, whiting, small-spotted catshark and European plaice. What you can catch
Beach day in Crosshaven
Is it a beach day?
- Cross-shore breeze (12 mph)
- Low tide at 12:23 pm: more sand
- Cloudy (99% cloud cover)
- Feels like 55 °F: chilly for the beach
- Swim with care: 6.9 ft waves every 8 s; high rip current risk
- Water at 55 °F (very cold)
Today, hour by hour
- Swimming Use care · 6.9 ft
6.9 ft waves every 8 s: swim with care and stay where you can stand. 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 12 mph
Cross-shore breeze (12 mph).
- Tide & sand 12:02 am
Low tide at 12:02 am and 12:23 pm: that's when there's the most sand. High tide at 6:02 am and 6:23 pm.
The EPA Ireland (beaches.ie) issues its bathing notices in season, from 1 June to 15 September; none are in force now. We don't have data on jellyfish or sargassum: ask the lifeguard or check the flags. How it works · The next 7 days
Beaches near Crosshaven
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Church Bay Beach 0.9 mi · E
- Parking
- mens pool 1.0 mi · E
- Parking
- Fennells Bay beach 1.0 mi · SE
- Myrtleville Beach 1.1 mi · S
- Parking
- Poughgorm 1.3 mi · S
- Parking
- Fountainstown Beach 1.7 mi · S
- Restrooms
- Parking
Good water quality 2025 season, EEA
- Shell Beach 1.9 mi · N
- White Bay Beach 2.1 mi · E
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 authorities of Ireland.
Webcams near Crosshaven
Webcams provided by windy.com — add a webcam
Tides in Crosshaven
Today's high and low tides
- ▼ Low tide 12:02 am 1.0 ft
- ▲ High tide 6:02 am 13.0 ft · coef. 96
- ▼ Low tide 12:23 pm 1.0 ft
- ▲ High tide 6:23 pm 12.9 ft · coef. 95
↓ Falling The tide is falling. 1 h 55 min to low tide at 12:43 am.
Tide coefficient 96 for the 6:02 am high tide and 95 for the 6:23 pm high tide. Spring tides. The water rises and falls 12.0 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 21 (13.2 ft) and the lowest, on September 12 (0.2 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 27 to 28 (coefficient 96, 12.1 ft range). The smallest, from October 19 to 20 (coefficient 29, 3.9 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 | 7:20 am · 5:13 pm | Low tide 12:02 am · 1.0 ft | High tide 6:02 am · 13.0 ft | Low tide 12:23 pm · 1.0 ft | High tide 6:23 pm · 12.9 ft | Coef. 96 | 92% | Major periods 12:56 am · 1:28 pm | High |
| Thu 29 | 7:22 am · 5:11 pm | Low tide 12:43 am · 1.1 ft | High tide 6:44 am · 12.9 ft | Low tide 1:05 pm · 1.3 ft | High tide 7:06 pm · 12.5 ft | Coef. 93 | 85% | Major periods 2:00 am · 2:32 pm | Medium |
| Fri 30 | 7:24 am · 5:09 pm | Low tide 1:26 am · 1.5 ft | High tide 7:29 am · 12.4 ft | Low tide 1:52 pm · 1.8 ft | High tide 7:52 pm · 11.9 ft | Coef. 86 | 76% | Major periods 3:05 am · 3:36 pm | Medium |
| Sat 31 | 7:26 am · 5:07 pm | Low tide 2:15 am · 2.0 ft | High tide 8:19 am · 11.8 ft | Low tide 2:45 pm · 2.5 ft | High tide 8:44 pm · 11.2 ft | Coef. 76 | 65% | Major periods 4:07 am · 4:37 pm | Medium |
| Sun 1 | 7:27 am · 5:05 pm | Low tide 3:11 am · 2.6 ft | High tide 9:17 am · 11.1 ft | Low tide 3:46 pm · 3.0 ft | High tide 9:46 pm · 10.5 ft | Coef. 65 | Last quarter | Major periods 5:06 am · 5:34 pm | Medium |
| Mon 2 | 7:29 am · 5:04 pm | Low tide 4:16 am · 3.0 ft | High tide 10:27 am · 10.5 ft | Low tide 4:57 pm · 3.4 ft | High tide 11:02 pm · 10.0 ft | Coef. 57 | 43% | Major periods 6:00 am · 6:25 pm | Medium |
| Tue 3 | 7:31 am · 5:02 pm | Low tide 5:31 am · 3.2 ft | High tide 11:48 am · 10.2 ft | Low tide 6:14 pm · 3.4 ft | — | Coef. 54 | 32% | Major periods 6:49 am · 7:13 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 Crosshaven station (Marine Institute), 2.9 mi from Crosshaven. Times and heights are its predictions.
Station data attribution: Marine Institute, Ireland: tide prediction for Crosshaven (from the Marine Institute operational hydrodynamic model), https://erddap.marine.ie/erddap/tabledap/imiTidePrediction.html. Licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Modified: harmonic constants fitted by TidePlanet from the hourly prediction of 2026.
The sea at Crosshaven
Sea stateSea state: moderate
The waves you may find
- Most commonMost common2.3 ft
- Significant4.6 ft
- Highest expectedHighest9.3 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 9.3 ft. Before heading out, expect waves of up to 9.3 ft.
Wind on the coast and offshore
Cross-onshore wind. The coast faces southeast 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 Wednesday 28: 7.9 ft with a period of 8 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 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 10:48 pm (local time).
Surf in Crosshaven today
Surf today
Fair- 3.2–4.9 ft surf at the shore, a good size with some punch
- 5.4 ft swell at 8 s from the southwest, short: weak, messy waves
- Light cross-shore wind (10 mph): a bit of chop
- Falling tide (low tide at 12:23 pm)
- Light: First light 6:45 am · sunrise 7:20 am · sunset 5:13 pm · last light 5:48 pm
- Tide: low 12:02 am (1.0 ft), high 6:02 am (13.0 ft), low 12:23 pm (1.0 ft) and high 6:23 pm (12.9 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 54.9 °F: a 5/4 fullsuit with booties (and a hood if it’s windy).
- Energy: 347 kJ · Medium power
Today’s surf at a glance
The best window, 7:00 am to 11:00 am, has a good size, though with a short-period swell. 4:00 pm to 5:48 pm can also work, with a good size, 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 Crosshaven today
Diving and snorkeling today
Likely visibility: poor- Slack water around low tide (12:23 pm): little current from 12:00 pm to 12:40 pm
- 5.2 ft swell at 8 s from the southwest: strong surge on the bottom
- Light cross-shore wind (11 mph)
- 0.2 mph current toward the east, weak (model)
- Sun high: more light underwater
- Slack water today: low tide 12:02 am (11:40 pm–12:20 am), high tide 6:02 am (5:40–6:20 am), low tide 12:23 pm (12:00–12:40 pm) and high tide 6:23 pm (6:00–6:40 pm)
- Likely visibility: poor. Swell (up to 7.9 ft at 9 s) over the last few days has stirred up the water. Based on the last 24 hours of data.
- Water at 54.9 °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 5:48 pm. Waning gibbous (92%), rising at 5:58 pm: a bright night.
Your diving day at a glance
The best window, 11:20 am to 1:20 pm, combines slack water at low tide, light wind, weak current and the sun high, though with some swell.
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
- Westwick 2.1 mi
- HMS Bredah 2.1 mi
- Star Immaculate 2.9 mi
- Uc 42 4.9 mi
- El Zorro 5.6 mi
- Killarney 6.6 mi
- Irish Plane 6.8 mi
- HMS Morocoala 7.9 mi
- Wreck 1.6 mi
- Oceans of Discovery 1.9 mi
- Cork Dive Centre 7.9 mi
- South West Technical Diving 11 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 Crosshaven
Now in Crosshaven
- Low / high
- 54 / 58 °F
- Rain
- 0.00 in · 8%
- Clouds
- 100%
- Humidity
- 89%
- Dew pointDew point
- 53 °F
- Visibility
- 14 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 (+0.00 inHg in 3 hours). Over the next 48 hours: +0.12 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 | Overcast | Overcast | Overcast | Overcast |
| Temperature | 55° | 56° | 55° | 55° | 58° | 58° | 56° | 56° |
| Wind (mph) | 15 SW | 17 WSW | 11 SW | 10 SW | 11 SW | 12 SW | 6 SSW | 8 SSW |
| Gusts | 27 | 28 | 20 | 17 | 18 | 19 | 14 | 13 |
| Waves | 7.7 ft | 7.9 ft | 7.5 ft | 6.6 ft | 6.0 ft | 5.6 ft | 5.1 ft | 4.7 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 |
- 12:00 am 56° 10 S 4.5 ft
- 3:00 am 56° 10 S 4.3 ft
- 6:00 am 56° 10 SSE 4.6 ft
- 9:00 am 56° 15 SSE 4.8 ft
- 12:00 pm 56° 15 SSE 5.4 ft
- 3:00 pm 56° 14 SSE 6.1 ft
- 6:00 pm 55° 16 SSE 6.6 ft
- 9:00 pm 56° 17 SSE 7.0 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 28 | 54 / 58 °F | 17 mph SW | 7.9 ft | 6:02 am · 6:23 pm | |
| Thu 29 | 55 / 57 °F | 17 mph SSE | 7.0 ft | 6:44 am · 7:06 pm | |
| Fri 30 | 56 / 58 °F | 18 mph SSE | 7.3 ft | 7:29 am · 7:52 pm | |
| Sat 31 | 51 / 57 °F | 7 mph SE | 4.7 ft | 8:19 am · 8:44 pm | |
| Sun 1 | 51 / 58 °F | 6 mph N | 2.6 ft | 9:17 am · 9:46 pm | |
| Mon 2 | 47 / 55 °F | 10 mph ENE | 3.1 ft | 10:27 am · 11:02 pm | |
| Tue 3 | 51 / 53 °F | 11 mph E | 3.1 ft | 11:48 am | |
| Wed 4 | 51 / 53 °F | 13 mph E | 4.2 ft | 12:22 am · 1:05 pm | |
| Thu 5 | 52 / 54 °F | 17 mph E | 6.6 ft | 1:34 am · 2:08 pm | |
| Fri 6 | 52 / 54 °F | 15 mph ESE | 6.0 ft | 2:32 am · 3:01 pm | |
| Sat 7 | 53 / 54 °F | 13 mph E | 5.0 ft | 3:21 am · 3:46 pm | |
| Sun 8 | 53 / 57 °F | 12 mph E | 3.4 ft | 4:04 am · 4:26 pm | |
| Mon 9 | 56 / 58 °F | 5 mph SE | 3.5 ft | 4:43 am · 5:03 pm | |
| Tue 10 | 51 / 57 °F | 5 mph S | 2.7 ft | 5:20 am · 5:38 pm |
- Thu 29 Overcast 55° / 57° 7.0 ft
- Fri 30 Light rain 56° / 58° 7.3 ft
- Sat 31 Overcast 51° / 57° 4.7 ft
- Sun 1 Overcast 51° / 58° 2.6 ft
- Mon 2 Overcast 47° / 55° 3.1 ft
- Tue 3 Light drizzle 51° / 53° 3.1 ft
- Wed 4 Light drizzle 51° / 53° 4.2 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 on Friday 30. See the models →
- Outlook Next few weeks, compared with normal: a bit warmer and normal rain. See the outlook →
- Normal Today, warmer than normal for late October (+3.7 °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 10:48 pm (local time).
The sun in Crosshaven
Sunrise and sunset
- First light 6:06 am
- Full dark 6:27 pm
- Civil dawn 6:45 am
- Civil dusk 5:48 pm
- Solar noon 12:17 pm (25° high)
- Daylight 9 h 53 min (−4 min)
- Evening golden hour 4:24 pm
- Full dark 6:27 pm
Golden hour and the day-night map
Today the sun is 92,359,297 mi away and looks 32′ 11″ across.
The moon in Crosshaven
Moon phase and position
Today the moon is 226,451 mi away and looks 32′ 47″ across.
Solunar periods
Today's activity: high- 12:56–2:56 am Major · the moon passes overhead · high activity
- 1:28–3:28 pm Major · the moon passes underfoot · high activity
- 10:22–11:22 am Minor · moonset · medium activity
- 5:28–6:28 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 Crosshaven
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Curraghbinny Pier 0.8 mi
- ADM Jetty 3.0 mi
- American Pier 3.2 mi
- Navy Pier 3.5 mi
- Boat ramp 0.5 mi
- Boat ramp 0.6 mi
- Boat ramp 0.7 mi
- Boat ramp 1.0 mi
- Boat ramp 1.1 mi
- Torpedo Launch Rail 1.3 mi
- Marina 0.5 mi
- Marina 0.5 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 950 ft from shore.
From the shoreline (1.1 mi from Crosshaven) out to sea, heading southeast.
How far from shore
- 16 ft deep550 ft
- 33 ft deep950 ft
- 66 ft deep2.5 mi
- 164 ft deepnot within 3.1 mi
For fishing, swimming and diving
- Shore fishing. 33 ft of water just 950 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. 33 ft deep 950 ft from shore; 66 ft is far out (2.5 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
Roche's Point Lighthouse 2.0 mi east
- Light
- A flash every 3 s; white or red depending on where you see it from · Fl WR 3s
- Range
- 18 nautical miles (21 mi)
- Light height
- 98 ft above sea level
- Tower height
- 49 ft
- Built
- 1835
Other lighthouses nearby: Spit Bank Lighthouse (3.4 mi north).
Light details: NGA List of Lights (USA); the rest from Wikidata. For reference only: not for navigation. Wikipedia · Wikidata · Sources and licenses
Tides near CrosshavenTides nearby
- Fountainstown1.0 mi
- Ringaskiddy2.6 mi
- Shanbally3.4 mi
- Cobh3.6 mi
- Rushbrooke3.6 mi
- Whitegate3.8 mi
- Carrigaline4.3 mi
- Aghada4.7 mi
- Passage West5.2 mi
- Carrigtwohill7.8 mi
Crosshaven at a glance
- Town or city of about 2,577 people. Coordinates: 51.798° N, 8.301° W.
- It is 10.0 mi southeast of Cork, the main place in Cork. The sun rises 1 min earlier and sets at the same time than in Cork.
- The nearest tide station, Crosshaven, is 2.9 mi to the southeast.
- Its coast faces southeast.
- Beaches and harbors nearby: Dognose Quay (historical) (2.0 mi), Cork Port (2.4 mi), Cork Harbour (3.3 mi).
Questions about CrosshavenQuestions
What time is high tide today in Crosshaven?
Today in Crosshaven there are high tides at 6:02 am (13.0 ft) and 6:23 pm (12.9 ft) and low tides at 12:02 am and 12:23 pm. Tide coefficient 96.
What time is sunset today in Crosshaven?
At 5:13 pm. There is light until the end of civil twilight, at 5:48 pm.
What time is sunrise tomorrow in Crosshaven?
At 7:22 am. First light comes at 6:07 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 12:56–2:56 am, Minor 10:22–11:22 am, Major 1:28–3:28 pm, Minor 5:28–6:28 pm. Today's activity is high.
What's the weather like today in Crosshaven?
Overcast, from 54 °F to 58 °F, with a gentle breeze from the south (9 mph) and a 8% chance of rain.
How is the sea today in Crosshaven?
Moderate (Douglas 4): 4.6 ft waves with a period of 7.0 s from the south-southwest. The water is 54.9 °F.
When is the best time to visit Crosshaven?
The best time to visit Crosshaven is from June to August: highs of 63 °F to 65 °F, about 11 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: Crosshaven prediction point of the Marine Institute (Ireland), computed with its ocean model, licensed CC BY 4.0; constants fitted by TidePlanet from a year of its predictions. Sun and moon: our own calculation with astronomy-engine. Places: GeoNames (CC BY 4.0). Coastline: © OpenStreetMap contributors (ODbL).