Muizenberg tides today
- Tide now 0.7 ft ↑ rising · high 4:53 am (5.5 ft)
- Best time tomorrow 3:10–6:10 pm average day · 6/10
- Beach tomorrow 10:00 am–3:00 pm Fair beach day · 6/10
- Waves · water 5.4 ft · 63 °F moderate · 11.0 s from the southwest
- Wind · air 8 mph · 63 °F from the S, gusts 26 · clear
- Surf tomorrow 4.0–6.2 ft Very good day · 8/10 · 5:22–9:00 am
- Sun 5:49 am–7:11 pm 13 h 21 min of daylight
- Moon 93% · 10:17 pm waning gibbous · rises at 10:17 pm
Today in Muizenberg there are high tides at 4:10 am (5.7 ft) and 4:27 pm (6.0 ft) and low tides at 10:11 am and 10:42 pm. Tide coefficient 101. Right now the tide is rising toward the high tide at 4:53 am. The sun rises at 5:49 am and sets at 7:11 pm: 13 h 21 min of daylight. The moon is 93% illuminated (waning gibbous) and rises at 10:17 pm. Major solunar periods run from 1:05 am to 3:05 am and from 1:36 pm to 3:36 pm. The next spring tides arrive from October 26 to 28. The sea is moderate, with 5.4 ft waves. There's a gentle breeze from the south (8 mph). Clear, 63 °F.
Fishing in Muizenberg today
Best time to fish
Solunar activity today: high- Low tide at 10:42 pm
- Minor period 9:47–10:47 pm (moonrise)
- Falling pressure (−0.15 inHg in 24 h), light onshore wind (9 mph) and 5.1 ft waves
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 101 (big spring tides)
Your day at a glance
The best window, 9:50 pm to 10:50 pm, combines the 10:42 pm low tide, moonrise, falling pressure and a light onshore breeze. Also good from 3:30 pm to 5:30 pm, with the 4:27 pm high tide, a major period, a light onshore breeze and some swell. Also good from 9:10 am to 11:10 am, with the 10:11 am low tide, a light onshore breeze and some swell.
Species with the most records nearby: salema, albacore, Atlantic horse mackerel and bluefish. October is one of the months when these are seen most: salema. What you can catch
Beach day in Muizenberg
Is it a beach day?
4 good hours- Mostly sunny
- Feels like 78 °F: pleasant
- Onshore breeze (9 mph)
- Low tide at 10:11 am: more sand
- Calm for swimming: 2.9 ft waves; moderate rip current risk
- UV 11 (very high): SPF 50 sunscreen
Today, hour by hour
- Swimming Calm · 2.9 ft
2.9 ft waves: calm for swimming. Moderate rip current risk. Always follow the lifeguard's flags.
- Water 63 °F
Cold: ease in slowly.
- Sun & sunscreen UV 11 · SPF 50
Max UV 11 (very high): SPF 50 sunscreen, reapplied every 2 hours. Seek shade 11:00 am–3:00 pm (very high UV).
- Wind 11 mph
Onshore breeze (11 mph).
- Tide & sand 10:11 am
Low tide at 10:11 am and 10:42 pm: that's when there's the most sand. High tide at 4:10 am and 4:27 pm. Coefficient 101 (spring tides): little sand left at high tide.
The best window, 9:00 am to 2:00 pm, brings sunshine, pleasant temperatures, little wind and low tide at 10:11 am, though with very high UV.
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 Muizenberg
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Muizenberg Beach 1.7 mi · E
- Restrooms
- Showers
- Parking
- St James Beach 1.9 mi · SW
- Restrooms
- Parking
- Danger Beach 2.1 mi · SW
- Restrooms
- Parking
- Dalebrook Beach 2.5 mi · SW
- Parking
- Kalk Bay Beach 2.8 mi · SW
- Restrooms
- Parking
- Fish Hoek Beach 3.7 mi · SW
- Lifeguard
- Restrooms
- Parking
- Glencairn Beach 5.1 mi · SW
- Restrooms
- Parking
- Shelly Beach 6.0 mi · SW
- Parking
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).
Webcams near Muizenberg
Webcams provided by windy.com — add a webcam
Tides in Muizenberg
Today's high and low tides
- ▲ High tide 4:10 am 5.7 ft · coef. 101
- ▼ Low tide 10:11 am 1.0 ft
- ▲ High tide 4:27 pm 6.0 ft · coef. 97
- ▼ Low tide 10:42 pm 0.7 ft
↑ Rising The tide is rising. 5 h 59 min to high tide at 4:53 am.
Tide coefficient 101 for the 4:10 am high tide and 97 for the 4:27 pm high tide. Big spring tides. The water rises and falls 5.3 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 20 (6.5 ft) and the lowest, on April 18 (0.3 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 105, 5.9 ft range). The smallest, from October 18 to 19 (coefficient 23, 1.4 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 | 5:49 am · 7:11 pm | High tide 4:10 am · 5.7 ft | Low tide 10:11 am · 1.0 ft | High tide 4:27 pm · 6.0 ft | Low tide 10:42 pm · 0.7 ft | Coef. 101 | 93% | Major periods 1:05 am · 1:36 pm | High |
| Thu 29 | 5:48 am · 7:12 pm | High tide 4:53 am · 5.5 ft | Low tide 10:57 am · 1.2 ft | High tide 5:13 pm · 5.6 ft | Low tide 11:27 pm · 1.1 ft | Coef. 91 | 86% | Major periods 2:08 am · 2:40 pm | Medium |
| Fri 30 | 5:47 am · 7:13 pm | High tide 5:41 am · 5.2 ft | Low tide 11:51 am · 1.6 ft | High tide 6:05 pm · 5.1 ft | — | Coef. 77 | 77% | Major periods 3:13 am · 3:45 pm | Low |
| Sat 31 | 5:46 am · 7:14 pm | Low tide 12:22 am · 1.6 ft | High tide 6:39 am · 4.9 ft | Low tide 1:01 pm · 2.0 ft | High tide 7:11 pm · 4.6 ft | Coef. 61 | 66% | Major periods 4:16 am · 4:46 pm | Medium |
| Sun 1 | 5:45 am · 7:14 pm | Low tide 1:34 am · 2.0 ft | High tide 7:57 am · 4.6 ft | Low tide 2:38 pm · 2.3 ft | High tide 8:39 pm · 4.3 ft | Coef. 47 | Last quarter | Major periods 5:15 am · 5:43 pm | Medium |
| Mon 2 | 5:44 am · 7:15 pm | Low tide 3:09 am · 2.2 ft | High tide 9:33 am · 4.6 ft | Low tide 4:20 pm · 2.2 ft | High tide 10:18 pm · 4.3 ft | Coef. 46 | 44% | Major periods 6:09 am · 6:34 pm | Medium |
| Tue 3 | 5:43 am · 7:16 pm | Low tide 4:37 am · 2.1 ft | High tide 10:56 am · 4.8 ft | Low tide 5:36 pm · 1.9 ft | High tide 11:35 pm · 4.5 ft | Coef. 56 | 33% | Major periods 6:59 am · 7:22 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
Muizenberg has no station of its own, so we use the tide at Simon's Town (TICON-4), 6.5 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 Muizenberg
Sea stateSea state: moderate
The waves you may find
- Most commonMost common2.7 ft
- Significant5.4 ft
- Highest expectedHighest11 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 11 ft. Before heading out, expect waves of up to 11 ft.
Wind on the coast and offshore
Onshore wind. The coast faces south and the wind blows straight in from the sea: more surf and backwash at the shore, and bait and boats drift toward land.
Wave height, next 7 daysWaves, next 7 days
Waves build over the next few days. The biggest waves arrive on Thursday 29: 6.9 ft with a period of 12 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 warms over the next few days: about 64.0 °F by Tuesday 3.
Water colder than normal for late October (−1.5 °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 10:54 pm (local time).
Surf in Muizenberg today
Surf today
Fair- 2.8–4.2 ft surf at the shore, a good size with some punch
- 2.5 ft swell at 15 s from the southwest, long-period and powerful
- Light onshore wind (11 mph): a bit of chop
- Falling tide (low tide at 10:42 pm)
- Light: First light 5:23 am · sunrise 5:49 am · sunset 7:11 pm · last light 7:37 pm
- Tide: high 4:10 am (5.7 ft), low 10:11 am (1.0 ft), high 4:27 pm (6.0 ft) and low 10:42 pm (0.7 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 62.4 °F: a 4/3 fullsuit.
- Energy: 242 kJ · Medium power
Today’s surf at a glance
The best window, 6:00 pm to 7:37 pm, has a good size and a clean swell, though with onshore 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 Muizenberg today
Diving and snorkeling today
Likely visibility: good- Slack water around low tide (10:11 am): little current from 9:50 am to 10:30 am
- 2.0 ft swell at 6 s from the southwest: some surge on the bottom
- Light onshore wind (9 mph)
- 0.3 mph current toward the northwest, weak (model)
- Sun high: more light underwater
- Slack water today: high tide 4:10 am (3:50–4:30 am), low tide 10:11 am (9:50–10:30 am), high tide 4:27 pm (4:10–4:50 pm) and low tide 10:42 pm (10:20–11:00 pm)
- Likely visibility: good. Swell (up to 2.8 ft at 8 s) over the last few days has stirred up the water. Based on the last 24 hours of data.
- Water at 62.4 °F: a 7 mm wetsuit, with hood and booties.
- Snorkeling: doable, with some waves or wind.
- Night dive: dark from 7:37 pm. Waning gibbous (93%), rising at 10:17 pm: a bright night.
Your diving day at a glance
The best window, 9:30 am to 11:10 am, combines slack water at low tide, light wind, weak current and the sun high. Also good from 3:50 pm to 5:00 pm, with slack water at high tide, 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
- Roman Rock Fish seen: Red Stumpnose Seabream, Hottentot Seabream, Cheilodactylus fasciatus, Roman Seabream 5.8 mi
- Windmill Fish seen: Hottentot Seabream, Chirodactylus brachydactylus, Super Klipfish, Roman Seabream 7.2 mi
- Caravan Reef Fish seen: Hottentot Seabream, Fransmadam, Steentje Seabream, Roman Seabream 8.5 mi
- Pietermaritsberg Wreck Fish seen: Panga Seabream, Hottentot Seabream, Cheilodactylus fasciatus, Roman Seabream 8.5 mi
- Pyramid Rock Fish seen: Fransmadam, Hottentot Seabream, Roman Seabream, Chirodactylus brachydactylus 9.9 mi
- Clan Stuart 5.8 mi
- Katsu Maru No 25 7.8 mi
- Wreck 2.9 mi
- Table Mountain National Park Marine Protected Area 5.9 mi
- Dive Inn Cape Town 5.2 mi
- Pisces Divers 5.3 mi
- Cape Town Dive Centre 5.5 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. Sites and fish: Reef Life Survey / IMOS NRMN, CC BY 4.0; fish names, Wikidata.
Weather in Muizenberg
Now in Muizenberg
- Low / high
- 58 / 78 °F
- Rain
- 0.00 in · 0%
- Clouds
- 0%
- Humidity
- 87%
- Dew pointDew point
- 59 °F
- Visibility
- 15 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Fair · 29
- Saharan dust
- No
Pressure and fishing
- ↗ RisingRising Anglers say fish bite less for a while
- → SteadySteady Anglers expect normal activity
- ↘ FallingFalling · now Anglers say fish feed more before the change
Falling now (−0.04 inHg in 3 hours). It barely changes over the next 48 hours. Falling pressure: anglers say fish feed more before the change. 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 | Partly cloudy | Clear sky | Mainly clear | Partly cloudy | Clear sky | Clear |
| Temperature | 60° | 59° | 60° | 69° | 76° | 77° | 69° | 63° |
| Wind (mph) | 5 S | 4 S | 6 S | 8 SSE | 9 SSE | 9 SSE | 11 SSE | 10 S |
| Gusts | 13 | 10 | 15 | 23 | 27 | 28 | 28 | 27 |
| Waves | 2.7 ft | 2.6 ft | 2.6 ft | 2.6 ft | 2.8 ft | 3.2 ft | 3.9 ft | 4.9 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 63° 7 S 5.7 ft
- 3:00 am 61° 4 S 6.4 ft
- 6:00 am 63° 1 S 6.8 ft
- 9:00 am 77° 1 WSW 6.8 ft
- 12:00 pm 86° 4 S 6.7 ft
- 3:00 pm 77° 10 SSE 6.4 ft
- 6:00 pm 70° 11 S 6.2 ft
- 9:00 pm 65° 10 S 6.0 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 28 | 58 / 78 °F | 11 mph S | 5.4 ft | 4:10 am · 4:27 pm | |
| Thu 29 | 60 / 87 °F | 11 mph S | 6.9 ft | 4:53 am · 5:13 pm | |
| Fri 30 | 63 / 78 °F | 12 mph S | 5.8 ft | 5:41 am · 6:05 pm | |
| Sat 31 | 63 / 76 °F | 11 mph S | 6.0 ft | 6:39 am · 7:11 pm | |
| Sun 1 | 62 / 71 °F | 13 mph SSE | 6.0 ft | 7:57 am · 8:39 pm | |
| Mon 2 | 61 / 72 °F | 12 mph SSE | 5.3 ft | 9:33 am · 10:18 pm | |
| Tue 3 | 60 / 74 °F | 9 mph SSE | 4.2 ft | 10:56 am · 11:35 pm | |
| Wed 4 | 61 / 85 °F | 8 mph WNW | 4.1 ft | 11:56 am | |
| Thu 5 | 64 / 73 °F | 9 mph WNW | 4.9 ft | 12:30 am · 12:42 pm | |
| Fri 6 | 63 / 76 °F | 11 mph SSE | 4.9 ft | 1:13 am · 1:21 pm | |
| Sat 7 | 63 / 86 °F | 6 mph SSW | 4.2 ft | 1:51 am · 1:56 pm | |
| Sun 8 | 63 / 71 °F | 17 mph NW | 3.5 ft | 2:25 am · 2:28 pm | |
| Mon 9 | 58 / 63 °F | 11 mph NW | 4.4 ft | 2:58 am · 3:00 pm | |
| Tue 10 | 57 / 67 °F | 7 mph S | 4.3 ft | 3:29 am · 3:31 pm |
- Thu 29 Clear sky 60° / 87° 6.9 ft
- Fri 30 Overcast 63° / 78° 5.8 ft
- Sat 31 Light drizzle 63° / 76° 6.0 ft
- Sun 1 Light drizzle 62° / 71° 6.0 ft
- Mon 2 Overcast 61° / 72° 5.3 ft
- Tue 3 Overcast 60° / 74° 4.2 ft
- Wed 4 Overcast 61° / 85° 4.1 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 (+6.7 °F; normal high: 72 °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 10:54 pm (local time).
The sun in Muizenberg
Sunrise and sunset
- First light 4:52 am
- Full dark 8:09 pm
- Civil dawn 5:23 am
- Civil dusk 7:37 pm
- Solar noon 12:30 pm (69° high)
- Daylight 13 h 21 min (+2 min)
- Evening golden hour 6:37 pm
- Full dark 8:09 pm
Golden hour and the day-night map
Today the sun is 92,361,117 mi away and looks 32′ 11″ across.
The moon in Muizenberg
Moon phase and position
Today the moon is 226,471 mi away and looks 32′ 46″ across.
Solunar periods
Today's activity: high- 1:05–3:05 am Major · the moon passes overhead · high activity
- 1:36–3:36 pm Major · the moon passes underfoot · high activity
- 6:30–7:30 am Minor · moonset · medium activity
- 9:47–10:47 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 · 10:29 pmNov 1 in 4 days
- New moon Mon, Nov 9 · 9:03 amNov 9 in 12 days
- First quarter Tue, Nov 17 · 1:48 pmNov 17 in 20 days
- Full moon Tue, Nov 24 · 4:54 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 Muizenberg
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Jetty 7.0 mi
- Boat ramp 0.2 mi
- Boat ramp 0.4 mi
- Boat ramp 0.9 mi
- Boat ramp 1.0 mi
- Boat ramp 3.3 mi
- Hout Bay Yacht Club Marina 8.2 mi
- Houtbaai 8.2 mi
- SouthSide tackle and bait 2.8 mi
- Tuckers Tackle 4.5 mi
- Amieros Angling Supplies 4.8 mi
- Suburban Fishing and Tackle 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.
Nearest lighthouse
Roman Rock Lighthouse 5.6 mi south
- Light
- A white flash every 6 s · Fl W 6s
- Range
- 20 nautical miles (23 mi)
- Light height
- 56 ft above sea level
- Tower height
- 46 ft
Light details: NGA List of Lights (USA); the rest from Wikidata. For reference only: not for navigation. Wikipedia · Wikidata · Sources and licenses
Tides near MuizenbergTides nearby
- Retreat2.9 mi
- Simon's Town7.1 mi
- Cape Town12 mi
- Bo-Kaap13 mi
- De Waterkant13 mi
- Three Anchor Bay14 mi
- Century City14 mi
- Somerset West20 mi
- Melkbosstrand26 mi
- Betty’s Bay30 mi
Muizenberg at a glance
- Town or city of about 36,857 people. Coordinates: 34.097° S, 18.480° E.
- It is 12 mi south of Cape Town, the main place in Western Cape. The sun rises at the same time and sets at the same time than in Cape Town.
- The nearest tide station, Simon's Town, is 6.5 mi to the southwest.
- Its coast faces south.
- Beaches and harbors nearby: East Beach (0.5 mi), Sunrise Beach (0.6 mi), West Beach (0.7 mi), Danger Beach (2.1 mi).
Questions about MuizenbergQuestions
What time is high tide today in Muizenberg?
Today in Muizenberg there are high tides at 4:10 am (5.7 ft) and 4:27 pm (6.0 ft) and low tides at 10:11 am and 10:42 pm. Tide coefficient 101.
What time is sunset today in Muizenberg?
At 7:11 pm. There is light until the end of civil twilight, at 7:37 pm.
What time is sunrise tomorrow in Muizenberg?
At 5:48 am. First light comes at 4:51 am.
What phase is the moon today?
Waning gibbous, 93% illuminated. New moon on Mon, Nov 9 · 9:03 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 1:05–3:05 am, Minor 6:30–7:30 am, Major 1:36–3:36 pm, Minor 9:47–10:47 pm. Today's activity is high.
What's the weather like today in Muizenberg?
Overcast, from 58 °F to 78 °F, with a gentle breeze from the south (8 mph) and a 0% chance of rain.
How is the sea today in Muizenberg?
Moderate (Douglas 4): 5.4 ft waves with a period of 11.0 s from the southwest. The water is 62.8 °F.
When is the best time to visit Muizenberg?
The best time to visit Muizenberg is from November to March: highs of 73 °F to 79 °F, about 3 rainy days a month and 10 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: Simon's Town 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).