Noordsvaarder today
- Beach day Not today Not a beach day · 0/10
- Tide now 2.1 ft ↑ rising · high 11:23 am (7.9 ft)
- Best time to fish 4:20–5:50 pm average day · 6/10
- Waves · water 2.2 ft · 56 °F slight · 4.5 s from the west
- Wind · air 4 mph · 55 °F from the WSW, gusts 6 · overcast
- Surf today 1.2–1.9 ft Poor day · 2/10 · 7:00–9:00 am
- Sun 7:32 am–5:13 pm 9 h 41 min of daylight
- Moon 85% · 6:45 pm waning gibbous · rises at 6:45 pm
Today in Noordsvaarder there are high tides at 11:23 am (7.9 ft) and 11:38 pm (7.9 ft) and low tides at 4:57 am and 5:16 pm. Tide coefficient 77. Right now the tide is rising toward the high tide at 11:23 am. The sun rises at 7:32 am and sets at 5:13 pm: 9 h 41 min of daylight. The moon is 85% illuminated (waning gibbous) and rises at 6:45 pm. Major solunar periods run from 2:04 am to 4:04 am and from 2:36 pm to 4:36 pm. The next spring tides arrive from November 9 to 11. The sea is slight, with 2.2 ft waves. There's a light breeze from the west-southwest (4 mph). Overcast, 55 °F.
Beach day in Noordsvaarder
Is it a beach day?
- Sun and clouds
- Cross-shore breeze (6 mph)
- Calm for swimming: 1.8 ft waves
- Low tide at 5:16 pm: more sand
- Feels like 57 °F: chilly for the beach
- Water at 57 °F (very cold)
Today, hour by hour
- Swimming Calm · 1.8 ft
1.8 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
- Water 57 °F
Very cold: ease in and keep swims short.
- Sun & sunscreen UV 1 · SPF 15
Max UV 1 (low): SPF 15 sunscreen.
- Wind 6 mph
Cross-shore breeze (6 mph).
- Tide & sand 5:16 pm
Low tide at 4:57 am and 5:16 pm: that's when there's the most sand. High tide at 11:23 am and 11:38 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
About NoordsvaarderThe beach
In West-Terschelling, 1.4 mi from the center. Tides, weather and sun in West-Terschelling →
- Parking
Amenities from OpenStreetMap: some may be missing or out of date. See on OpenStreetMap · Fix on OpenStreetMap
Beaches near Noordsvaarder
We don't know of any named beaches within 6.2 mi of Noordsvaarder.
Missing one? Beaches come from OpenStreetMap: you can add it there. Add or fix on OpenStreetMap
Beaches and amenities: © OpenStreetMap contributors (ODbL). Bathing water quality: European Environment Agency (EEA), with data from the authorities of the Netherlands.
Webcams near Noordsvaarder
Webcams provided by windy.com — add a webcam
Fishing in Noordsvaarder today
Best time to fish
Solunar activity today: medium- Low tide at 5:16 pm
- Major period 2:36–4:36 pm
- Sunset at 5:13 pm, golden hour from 4:22 pm
- Rising pressure (+0.18 inHg in 24 h), almost no wind and calm sea (1.4 ft waves)
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 77 (average tides)
- A major period lines up with sunset
Your day at a glance
The best window, 4:20 pm to 5:50 pm, combines the 5:16 pm low tide, a major period and sunset, though with rising pressure. Also worth a try from 11:30 am to 12:20 pm, with the 11:23 am high tide, moonset, a light onshore breeze and some swell, though with rising pressure.
Species with the most records nearby: European plaice, common sole, whiting and European flounder. October is one of the months when these are seen most: whiting and Atlantic cod. What you can catch
Tides in Noordsvaarder
Today's high and low tides
- ▼ Low tide 4:57 am 1.6 ft
- ▲ Next high tide 11:23 am 7.9 ft · coef. 77
- ▼ Low tide 5:16 pm 2.1 ft
- ▲ High tide 11:38 pm 7.9 ft · coef. 76
↑ Rising The tide is rising. 5 h 43 min to high tide at 11:23 am.
Tide coefficient 77 for the 11:23 am high tide and 76 for the 11:38 pm high tide. Average coefficient. The water rises and falls 6.2 ft between the highest high and the lowest low: an average 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 10 (8.7 ft) and the lowest, on March 22 (0.5 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 9 to 11 (coefficient 86, 7.3 ft range). The smallest, from October 20 to 21 (coefficient 47, 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, Thu 29 | 7:32 am · 5:13 pm | Low tide 4:57 am · 1.6 ft | High tide 11:23 am · 7.9 ft | Low tide 5:16 pm · 2.1 ft | High tide 11:38 pm · 7.9 ft | Coef. 77 | 85% | Major periods 2:04 am · 2:36 pm | Medium |
| Fri 30 | 7:34 am · 5:11 pm | Low tide 5:40 am · 1.7 ft | High tide 12:05 pm · 7.6 ft | Low tide 5:56 pm · 2.2 ft | — | Coef. 74 | 76% | Major periods 3:08 am · 3:40 pm | Medium |
| Sat 31 | 7:36 am · 5:09 pm | High tide 12:18 am · 7.9 ft | Low tide 6:26 am · 1.9 ft | High tide 12:47 pm · 7.2 ft | Low tide 6:39 pm · 2.4 ft | Coef. 72 | 66% | Major periods 4:11 am · 4:41 pm | Medium |
| Sun 1 | 7:38 am · 5:07 pm | High tide 1:01 am · 7.9 ft | Low tide 7:15 am · 2.1 ft | High tide 1:34 pm · 6.8 ft | Low tide 7:26 pm · 2.6 ft | Coef. 67 | Last quarter | Major periods 5:10 am · 5:38 pm | Medium |
| Mon 2 | 7:40 am · 5:05 pm | High tide 1:52 am · 7.8 ft | Low tide 8:13 am · 2.4 ft | High tide 2:29 pm · 6.4 ft | Low tide 8:22 pm · 2.8 ft | Coef. 60 | 43% | Major periods 6:04 am · 6:29 pm | Medium |
| Tue 3 | 7:42 am · 5:03 pm | High tide 2:54 am · 7.7 ft | Low tide 9:25 am · 2.6 ft | High tide 3:46 pm · 6.2 ft | Low tide 9:33 pm · 2.9 ft | Coef. 56 | 33% | Major periods 6:54 am · 7:17 pm | Medium |
| Wed 4 | 7:44 am · 5:01 pm | High tide 4:16 am · 7.7 ft | Low tide 10:48 am · 2.5 ft | High tide 5:29 pm · 6.4 ft | Low tide 10:54 pm · 2.7 ft | Coef. 61 | 23% | Major periods 7:40 am · 8:02 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 West-Terschelling station (TICON-4), 1.6 mi from Noordsvaarder. Times and heights are its predictions.
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 Noordsvaarder
Sea stateSea state: slight
The waves you may find
- Most commonMost common1.1 ft
- Significant2.2 ft
- Highest expectedHighest4.6 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 4.6 ft. Before heading out, expect waves of up to 4.6 ft.
Wind on the coast and offshore
The model doesn't separate offshore wind here: it's the same as on the coast.
Cross-onshore wind. The coast faces northwest 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 build over the next few days. The biggest waves arrive on Monday 2: 6.0 ft with a period of 6 s, from the north (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 55.0 °F by Wednesday 4.
Water warmer than normal for late October (+1.7 °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 5:40 am (local time).
Nearest buoy
This is a real measurement of the sea, not a forecast. Data from Rijkswaterstaat Water, Traffic and Environment, via the E.U. Copernicus Marine Service. Generated using E.U. Copernicus Marine Service Information (doi:10.48670/moi-00036).
Surf in Noordsvaarder today
Surf today
Poor- 1.2–1.9 ft surf at the shore, small: good for learning or a longboard
- 1.9 ft swell at 4 s from the west-northwest, short: weak, messy waves
- Almost no wind (3 mph): glassy water
- First or last light of the day
- Rising tide (high tide at 11:23 am)
- Light: First light 6:56 am · sunrise 7:32 am · sunset 5:13 pm · last light 5:50 pm
- Tide: low 4:57 am (1.6 ft), high 11:23 am (7.9 ft), low 5:16 pm (2.1 ft) and high 11:38 pm (7.9 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 56.5 °F: a 5/4 fullsuit with booties (and a hood if it’s windy).
- Energy: 9 kJ · Low power
Today’s surf at a glance
The best window, 7:00 am to 9:00 am, has glassy water, though with a short-period swell. 2:00 pm to 3:00 pm can also work, with glassy water, though with small waves and 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 Noordsvaarder today
Diving and snorkeling today
Likely visibility: good- Slack water around high tide (11:23 am): little current from 11:00 am to 11:40 am
- 1.6 ft swell at 4 s from the west-northwest: some surge on the bottom
- Light cross-shore wind (6 mph)
- 0.2 mph current toward the south-southwest, weak (model)
- Sun high: more light underwater
- Slack water today: low tide 4:57 am (4:42–5:12 am), high tide 11:23 am (11:00–11:40 am), low tide 5:16 pm (5:00–5:31 pm) and high tide 11:38 pm (11:10 pm–12:00 am)
- Likely visibility: good. The sea has been calm and there's been little rain. Based on the last 24 hours of data.
- Water at 56.5 °F: a 7 mm semi-dry suit, with hood, gloves and booties.
- Snorkeling: doable, with some waves or wind.
- Night dive: dark from 5:50 pm. Waning gibbous (85%), rising at 6:45 pm: a bright night.
Your diving day at a glance
The best window, 9:30 am to 12:00 pm, combines slack water at high tide, light wind, weak current and the sun high. Also good from 4:30 pm to 5:30 pm, with slack water at low tide, little swell, light wind and weak 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
- Won 2 1.4 mi
- Walsum 10 3.4 mi
- Elsie 3.4 mi
- Johanna 3.5 mi
- Blue Stone 3.6 mi
- Katowice 4.1 mi
- Hansa 4.3 mi
- West Aleta 4.5 mi
- Otto 4.8 mi
- Jacobsruggen 2.9 mi
- Richel 5.1 mi
- Duiker Vlieland 6.5 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 Noordsvaarder
Now in Noordsvaarder
- Low / high
- 52 / 58 °F
- Rain
- 0.00 in · 82%
- Clouds
- 100%
- Humidity
- 93%
- Dew pointDew point
- 52 °F
- Visibility
- 11 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Fair · 27
- 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: +0.20 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 | Partly cloudy | Partly cloudy | Overcast | Partly cloudy | Partly cloudy | Partly cloudy | Mainly clear | Mainly clear |
| Temperature | 56° | 55° | 55° | 55° | 57° | 58° | 54° | 52° |
| Wind (mph) | 9 WSW | 5 WSW | 4 WSW | 5 SSW | 5 WSW | 2 WNW | 2 SSE | 2 SSE |
| Gusts | 15 | 10 | 6 | 8 | 10 | 6 | 2 | 4 |
| Waves | 3.0 ft | 2.5 ft | 2.2 ft | 1.8 ft | 1.6 ft | 1.5 ft | 1.4 ft | 1.2 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 |
- 6:00 am 55° 4 WSW 2.2 ft
- 9:00 am 55° 5 SSW 1.8 ft
- 12:00 pm 57° 5 WSW 1.6 ft
- 3:00 pm 58° 2 WNW 1.5 ft
- 6:00 pm 54° 2 SSE 1.4 ft
- 9:00 pm 52° 2 SSE 1.2 ft
- 12:00 am 52° 2 SE 1.2 ft
- 3:00 am 51° 3 ESE 1.1 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 29 | 52 / 58 °F | 9 mph SW | 3.0 ft | 11:23 am · 11:38 pm | |
| Fri 30 | 46 / 52 °F | 6 mph ESE | 1.2 ft | 12:05 pm | |
| Sat 31 | 50 / 55 °F | 6 mph NNE | 0.9 ft | 12:18 am · 12:47 pm | |
| Sun 1 | 53 / 55 °F | 8 mph NW | 4.5 ft | 1:01 am · 1:34 pm | |
| Mon 2 | 53 / 55 °F | 26 mph N | 6.0 ft | 1:52 am · 2:29 pm | |
| Tue 3 | 52 / 56 °F | 24 mph NE | 5.2 ft | 2:54 am · 3:46 pm | |
| Wed 4 | 49 / 56 °F | 11 mph E | 3.5 ft | 4:16 am · 5:29 pm | |
| Thu 5 | 47 / 54 °F | 10 mph E | 1.8 ft | 5:46 am · 6:33 pm | |
| Fri 6 | 51 / 52 °F | 9 mph ENE | 1.6 ft | 6:49 am · 7:22 pm | |
| Sat 7 | 46 / 50 °F | 11 mph SE | 1.3 ft | 7:39 am · 8:04 pm | |
| Sun 8 | 47 / 53 °F | 12 mph SSW | 0.9 ft | 8:22 am · 8:44 pm | |
| Mon 9 | 49 / 55 °F | 14 mph SSE | 1.0 ft | 9:03 am · 9:21 pm | |
| Tue 10 | 53 / 56 °F | 18 mph S | 1.3 ft | 9:40 am · 9:58 pm | |
| Wed 11 | 55 / 56 °F | 15 mph S | 1.0 ft | 10:16 am · 10:33 pm |
- Fri 30 Fog 46° / 52° 1.2 ft
- Sat 31 Overcast 50° / 55° 0.9 ft
- Sun 1 Light rain 53° / 55° 4.5 ft
- Mon 2 Light rain 53° / 55° 6.0 ft
- Tue 3 Overcast 52° / 56° 5.2 ft
- Wed 4 Overcast 49° / 56° 3.5 ft
- Thu 5 Overcast 47° / 54° 1.8 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 (+4.5 °F; normal high: 53 °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 5:40 am (local time).
The sun in Noordsvaarder
Sunrise and sunset
- First light 6:15 am
- Full dark 6:30 pm
- Civil dawn 6:56 am
- Civil dusk 5:50 pm
- Solar noon 12:23 pm (23° high)
- Daylight 9 h 41 min (−4 min)
- Evening golden hour 4:22 pm
- Full dark 6:30 pm
Golden hour and the day-night map
Today the sun is 92,335,898 mi away and looks 32′ 11″ across.
The moon in Noordsvaarder
Moon phase and position
Today the moon is 226,618 mi away and looks 32′ 45″ across.
Solunar periods
Today's activity: medium- 2:04–4:04 am Major · the moon passes overhead · high activity
- 2:36–4:36 pm Major · the moon passes underfoot · high activity
- 11:56 am–12:56 pm Minor · moonset · medium activity
- 6:15–7:15 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 Noordsvaarder
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Jetty 1.4 mi
- Jetty 1.8 mi
- Jetty 1.8 mi
- Jetty 2.0 mi
- Jetty 2.3 mi
- Boat ramp 1.2 mi
- Boat ramp 1.4 mi
- Boat ramp 1.5 mi
- Boat ramp 1.7 mi
- Boat ramp 4.1 mi
- Waddenhaven Vlieland 5.6 mi
- Tankstation 1.7 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
Shallow, gradualShallow, gradual bottom: 16 ft at 1,300 ft from shore and 26 ft at 3.1 mi.
From the shoreline (1.1 mi from Noordsvaarder) out to sea, heading northwest.
How far from shore
- 16 ft deep1,300 ft
- 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 1,300 ft): 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
Brandaris 1.4 mi east
- Light
- A white flash every 5 s · Fl W 5s
- Range
- 29 nautical miles (33 mi)
- Light height
- 180 ft above sea level
- Tower height
- 176 ft
- Built
- 1594
Light details: NGA List of Lights (USA); the rest from Wikidata. For reference only: not for navigation. Wikipedia · Wikidata · Sources and licenses
Tides near NoordsvaarderTides nearby
- West-Terschelling1.4 mi
- Midsland4.6 mi
- Formerum6.0 mi
- Oost-Vlieland6.1 mi
- Lies6.4 mi
- Hoorn7.3 mi
- Oosterend8.7 mi
- Pietersbierum16 mi
- Sexbierum16 mi
- Oosterbierum16 mi
Noordsvaarder at a glance
- Beach. Coordinates: 53.357° N, 5.182° E.
- It is 1.4 mi west of West-Terschelling, the main place in Friesland. The sun rises at the same time and sets at the same time than in West-Terschelling.
- In West-Terschelling, 1.4 mi from the center.
- The nearest tide station, West-Terschelling, is 1.6 mi to the east.
- Its coast faces northwest.
Questions about NoordsvaarderQuestions
Where is Noordsvaarder?
In West-Terschelling, 1.4 mi from the center, Friesland (Netherlands). The shore faces northwest.
What amenities does Noordsvaarder have?
According to OpenStreetMap: parking. Some may be missing or out of date, so ask at the beach.
What time is high tide today in Noordsvaarder?
Today in Noordsvaarder there are high tides at 11:23 am (7.9 ft) and 11:38 pm (7.9 ft) and low tides at 4:57 am and 5:16 pm. Tide coefficient 77.
What time is sunset today in Noordsvaarder?
At 5:13 pm. There is light until the end of civil twilight, at 5:50 pm.
What time is sunrise tomorrow in Noordsvaarder?
At 7:34 am. First light comes at 6:16 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 2:04–4:04 am, Minor 11:56 am–12:56 pm, Major 2:36–4:36 pm, Minor 6:15–7:15 pm. Today's activity is medium.
What's the weather like today in Noordsvaarder?
Overcast, from 52 °F to 58 °F, with a light breeze from the west-southwest (4 mph) and a 82% chance of rain.
How is the sea today in Noordsvaarder?
Slight (Douglas 3): 2.2 ft waves with a period of 4.5 s from the west. The water is 56.5 °F.
When is the best time to visit Noordsvaarder?
The best time to visit Noordsvaarder is from July to August: highs of 68 °F to 69 °F, about 11 rainy days a month and 7 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: West-Terschelling 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).