Hirizo Beach today
- Beach day 12:00–4:00 pm Fair beach day · 5/10
- Tide now 5.1 ft ↓ falling · low 12:54 pm (3.4 ft)
- Best time to fish 6:40–7:20 pm average day · 5/10
- Waves · water 3.5 ft · 76 °F slight · 5.2 s from the east
- Wind · air 13 mph · 62 °F from the NE, gusts 26 · partly cloudy
- Surf today 1.0–1.6 ft Poor day · 1/10 · 12:00–4:00 pm
- Sun 6:02 am–4:55 pm 10 h 53 min of daylight
- Moon 88% · 7:06 pm waning gibbous · rises at 7:06 pm
Today in Hirizo Beach there are high tides at 7:46 am (5.4 ft) and 6:17 pm (5.6 ft) and low tides at 12:47 am and 12:54 pm. Tide coefficient 93. Right now the tide is falling toward the low tide at 12:54 pm. The sun rises at 6:02 am and sets at 4:55 pm: 10 h 53 min of daylight. The moon is 88% illuminated (waning gibbous) and rises at 7:06 pm. Major solunar periods run from 12:45 am to 2:45 am and from 1:17 pm to 3:17 pm. The next spring tides arrive from October 27 to 29. The sea is slight, with 3.5 ft waves. There's a moderate breeze from the northeast (13 mph). Partly cloudy, 62 °F.
Beach day in Hirizo Beach
Is it a beach day?
- Sunny
- Calm for swimming: 3.4 ft waves
- Water at 76 °F (warm)
- Low tide at 12:54 pm: more sand
- Feels like 65 °F: a bit cool
- Light offshore wind (11 mph): it blows floats and inflatables out to sea
Today, hour by hour
- Swimming Calm · 3.4 ft
3.4 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
- Water 76 °F
Warm: very pleasant.
- Sun & sunscreen UV 3 · SPF 30
Max UV 3 (moderate): SPF 30 sunscreen, reapplied every 2 hours.
- Wind 13 mph
Moderate offshore wind (13 mph). Skip the inflatables: offshore wind carries them out to sea.
- Tide & sand 12:54 pm
Low tide at 12:47 am and 12:54 pm: that's when there's the most sand. High tide at 7:46 am and 6:17 pm. Coefficient 93 (spring tides): little sand left at high tide.
The best window, 12:00 pm to 4:00 pm, brings sunshine, a calm sea, water at 76 °F and low tide at 12:54 pm, though with cool air and light offshore wind.
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 Hirizo BeachThe beach
4.3 mi from Minato. Tides, weather and sun in Minato →
- Restrooms
- Parking
Amenities from OpenStreetMap: some may be missing or out of date. See on OpenStreetMap · Fix on OpenStreetMap
Beaches near Hirizo Beach
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- トウナイ浜 0.5 mi · NW
- Togai Beach 0.6 mi · NW
- Restrooms
- Parking
- 入間海岸 1.7 mi · NW
- Restrooms
- Parking
- Yumigahama beach 4.1 mi · NE
- Parking
- 谷川浜 4.4 mi · NW
- Toji beach 5.5 mi · NE
- Restrooms
- 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 Hirizo Beach
Webcams provided by windy.com — add a webcam
Fishing in Hirizo Beach today
Best time to fish
Solunar activity today: medium- Low tide at 12:47 am
- Major period 12:45–2:45 am
- Rising pressure (+0.50 inHg in 24 h), moderate offshore wind (13 mph) and some swell (3.9 ft waves) to stir the water
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 93 (spring tides)
Your day at a glance
The best window, 12:50 am to 1:50 am, combines the 12:47 am low tide, a major period and some swell, though with rising pressure and moderate wind. Also worth a try from 6:40 pm to 7:20 pm, with the 6:17 pm high tide, moonrise and some swell, though with rising pressure. Also worth a try from 11:50 am to 1:50 pm, with the 12:54 pm low tide, a major period and some swell, though with rising pressure.
Species with the most records nearby: striped mullet, blackhead seabream, greater amberjack and bigfin reef squid. What you can catch
Tides in Hirizo Beach
Today's high and low tides
- ▼ Low tide 12:47 am 0.0 ft
- ▲ High tide 7:46 am 5.4 ft · coef. 93
- ▼ Next low tide 12:54 pm 3.4 ft
- ▲ High tide 6:17 pm 5.6 ft · coef. 87
↓ Falling The tide is falling. 3 h 47 min to low tide at 12:54 pm.
Tide coefficient 93 for the 7:46 am high tide and 87 for the 6:17 pm high tide. Spring tides. The water rises and falls 5.6 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 September 12 (5.9 ft) and the lowest, on December 24 (-0.7 ft).
Mixed: two high and two low tides a day, but of quite different heights.
Heights above NLLW. Astronomical prediction: wind and air pressure can raise or lower the water by a few inches, and more in a storm. Not for navigation. NLLW
Tide coefficient and range in October
The biggest tides of the month came from October 26 to 27 (coefficient 106, 5.3 ft range). The smallest, on October 19 (coefficient 22, 2.5 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 | 6:02 am · 4:55 pm | Low tide 12:47 am · 0.0 ft | High tide 7:46 am · 5.4 ft | Low tide 12:54 pm · 3.4 ft | High tide 6:17 pm · 5.6 ft | Coef. 93 | 88% | Major periods 12:45 am · 1:17 pm | Medium |
| Fri 30 | 6:03 am · 4:53 pm | Low tide 1:33 am · 0.2 ft | High tide 8:43 am · 5.1 ft | Low tide 1:32 pm · 3.7 ft | High tide 6:51 pm · 5.4 ft | Coef. 78 | 80% | Major periods 1:50 am · 2:22 pm | Medium |
| Sat 31 | 6:04 am · 4:52 pm | Low tide 2:25 am · 0.5 ft | High tide 9:50 am · 4.8 ft | Low tide 2:19 pm · 4.0 ft | High tide 7:30 pm · 5.1 ft | Coef. 62 | 69% | Major periods 2:54 am · 3:25 pm | Medium |
| Sun 1 | 6:05 am · 4:52 pm | Low tide 3:26 am · 0.9 ft | High tide 11:17 am · 4.6 ft | Low tide 3:44 pm · 4.1 ft | High tide 8:27 pm · 4.6 ft | Coef. 46 | 58% | Major periods 3:54 am · 4:23 pm | Medium |
| Mon 2 | 6:06 am · 4:51 pm | Low tide 4:40 am · 1.4 ft | High tide 12:51 pm · 4.5 ft | Low tide 6:17 pm · 3.9 ft | High tide 10:28 pm · 4.2 ft | Coef. 38 | Last quarter | Major periods 4:50 am · 5:16 pm | Medium |
| Tue 3 | 6:06 am · 4:50 pm | Low tide 6:05 am · 1.7 ft | High tide 1:48 pm · 4.7 ft | Low tide 7:48 pm · 3.3 ft | — | Coef. 42 | 36% | Major periods 5:41 am · 6:05 pm | Medium |
| Wed 4 | 6:07 am · 4:49 pm | High tide 12:48 am · 4.2 ft | Low tide 7:23 am · 2.0 ft | High tide 2:24 pm · 4.8 ft | Low tide 8:36 pm · 2.6 ft | Coef. 54 | 26% | Major periods 6:29 am · 6:51 pm | Medium |
▲ high tide · ▼ low tide · heights above NLLW. 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 Irōzaki station (TICON-4), 1.4 mi from Hirizo Beach. 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 Hirizo Beach
Sea stateSea state: slight
The waves you may find
- Most commonMost common1.8 ft
- Significant3.5 ft
- Highest expectedHighest7.3 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 7.3 ft. Before heading out, expect waves of up to 7.3 ft.
Wind on the coast and offshore
Offshore wind. The coast faces south 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 build over the next few days. The biggest waves arrive on Saturday 31: 7.7 ft with a period of 7 s, from the west-southwest (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 74.9 °F by Wednesday 4.
Water warmer than normal for late October (+3.5 °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 9:08 am (local time).
Surf in Hirizo Beach today
Surf today
Poor- 1.0–1.6 ft surf at the shore, small: good for learning or a longboard
- 2.4 ft swell at 5 s from the east-southeast, short: weak, messy waves; it hits this coast at an angle
- Light offshore wind (9 mph): it holds up and grooms the waves
- Rising tide (high tide at 6:17 pm)
- Light: First light 5:36 am · sunrise 6:02 am · sunset 4:55 pm · last light 5:20 pm
- Tide: low 12:47 am (0.0 ft), high 7:46 am (5.4 ft), low 12:54 pm (3.4 ft) and high 6:17 pm (5.6 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 75.6 °F–76.6 °F: boardshorts or a swimsuit and a rash guard.
- Energy: 31 kJ · Low power
Today’s surf at a glance
The best window, 12:00 pm to 4:00 pm, has light offshore wind, 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 Hirizo Beach today
Diving and snorkeling today
Likely visibility: fair- Slack water around low tide (12:54 pm): little current from 12:20 pm to 1:30 pm
- 2.4 ft swell at 5 s from the east-southeast: some surge on the bottom
- Light offshore wind (9 mph)
- 1.7 mph current toward the west, strong (model)
- Sun high: more light underwater
- Slack water today: low tide 12:47 am (12:30–1:02 am), high tide 7:46 am (7:20–8:10 am), low tide 12:54 pm (12:20–1:30 pm) and high tide 6:17 pm (5:50–6:40 pm)
- Likely visibility: fair. Swell (up to 6.6 ft at 6 s) over the last few days has stirred up the water. Based on the last 24 hours of data.
- Water at 75.6–76.6 °F: a 3 mm wetsuit.
- Snorkeling: better not, with these waves, wind or current.
- Night dive: dark from 5:20 pm. Waning gibbous (88%), rising at 7:06 pm: a bright night.
Your diving day at a glance
The best window, 11:50 am to 2:00 pm, combines slack water at low tide, light wind and the sun high, though with current. Also worth a look from 7:10 am to 8:20 am, with slack water at high tide, though with moderate wind 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
- 中木マリンセンター 0.6 mi
- 南伊豆町中木 0.7 mi
- 神子元マリンサービス 3.6 mi
- 弓ヶ浜マリンセンター 4.0 mi
- 海遊社 4.0 mi
- 神子元ハンマーズ 4.4 mi
- コリンズ 9.0 mi
- Dds 9.3 mi
- ダイビングサービスはまゆ 9.4 mi
- アイダイブ 10.0 mi
- アクアティーク 10 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
Sites: © OpenStreetMap contributors (ODbL).
Weather in Hirizo Beach
Now in Hirizo Beach
- Low / high
- 54 / 66 °F
- Rain
- 0.00 in · 14%
- Clouds
- 73%
- Humidity
- 69%
- Dew pointDew point
- 51 °F
- Visibility
- 15 mi
- UV indexUV
- 2 · low
- Air qualityAir
- Fair · 27
- Saharan dust
- No
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: −0.46 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 | Clear | Clear | Clear | Overcast | Mainly clear | Mainly clear | Partly cloudy | Overcast |
| Temperature | 56° | 55° | 55° | 62° | 65° | 66° | 61° | 62° |
| Wind (mph) | 14 NNE | 13 NNE | 13 NNE | 13 NE | 11 NE | 7 NE | 7 NNE | 4 NNE |
| Gusts | 26 | 24 | 24 | 26 | 25 | 17 | 13 | 10 |
| Waves | 4.1 ft | 3.4 ft | 3.3 ft | 3.5 ft | 3.4 ft | 3.1 ft | 2.8 ft | 2.6 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 am 62° 13 NE 3.5 ft
- 12:00 pm 65° 11 NE 3.4 ft
- 3:00 pm 66° 7 NE 3.1 ft
- 6:00 pm 61° 7 NNE 2.8 ft
- 9:00 pm 62° 4 NNE 2.6 ft
- 12:00 am 64° 3 NNE 2.5 ft
- 3:00 am 65° 0 SE 2.6 ft
- 6:00 am 63° 1 NNE 3.0 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 29 | 54 / 66 °F | 14 mph NE | 4.1 ft | 7:46 am · 6:17 pm | |
| Fri 30 | 63 / 71 °F | 12 mph W | 4.8 ft | 8:43 am · 6:51 pm | |
| Sat 31 | 59 / 72 °F | 15 mph W | 7.7 ft | 9:50 am · 7:30 pm | |
| Sun 1 | 58 / 66 °F | 10 mph NE | 6.0 ft | 11:17 am · 8:27 pm | |
| Mon 2 | 58 / 69 °F | 16 mph WSW | 6.5 ft | 12:51 pm · 10:28 pm | |
| Tue 3 | 62 / 70 °F | 11 mph NE | 6.8 ft | 1:48 pm | |
| Wed 4 | 60 / 62 °F | 20 mph NNE | 7.4 ft | 12:48 am · 2:24 pm | |
| Thu 5 | 60 / 65 °F | 18 mph NNE | 7.9 ft | 2:19 am · 2:53 pm | |
| Fri 6 | 58 / 71 °F | 13 mph N | 8.9 ft | 3:24 am · 3:18 pm | |
| Sat 7 | 57 / 61 °F | 14 mph NE | 7.9 ft | 4:15 am · 3:43 pm | |
| Sun 8 | 56 / 61 °F | 14 mph NNE | 5.8 ft | 5:00 am · 4:07 pm | |
| Mon 9 | 52 / 59 °F | 15 mph NNE | 6.4 ft | 5:41 am · 4:30 pm | |
| Tue 10 | 52 / 63 °F | 13 mph W | 9.0 ft | 6:20 am · 4:54 pm | |
| Wed 11 | 52 / 59 °F | 7 mph E | 8.6 ft | 6:58 am · 5:19 pm |
- Fri 30 Drizzle 63° / 71° 4.8 ft
- Sat 31 Drizzle 59° / 72° 7.7 ft
- Sun 1 Overcast 58° / 66° 6.0 ft
- Mon 2 Rain 58° / 69° 6.5 ft
- Tue 3 Light drizzle 62° / 70° 6.8 ft
- Wed 4 Light drizzle 60° / 62° 7.4 ft
- Thu 5 Light drizzle 60° / 65° 7.9 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 don't agree · low confidence: unsure about rain tomorrow. See the models →
- Outlook The next few weeks look normal for the time of year. See the outlook →
- Normal Today, cooler than normal for late October (−2.5 °F; normal high: 68 °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 9:08 am (local time).
The sun in Hirizo Beach
Sunrise and sunset
- First light 5:06 am
- Full dark 5:50 pm
- Civil dawn 5:36 am
- Civil dusk 5:20 pm
- Solar noon 11:28 am (42° high)
- Daylight 10 h 53 min (−2 min)
- Evening golden hour 4:20 pm
- Full dark 5:50 pm
Golden hour and the day-night map
Today the sun is 92,344,891 mi away and looks 32′ 11″ across.
The moon in Hirizo Beach
Moon phase and position
Today the moon is 226,480 mi away and looks 32′ 46″ across.
Solunar periods
Today's activity: medium- 12:45–2:45 am Major · the moon passes overhead · high activity
- 1:17–3:17 pm Major · the moon passes underfoot · high activity
- 8:57–9:57 am Minor · moonset · medium activity
- 6:36–7:36 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 Mon, Nov 2 · 5:29 amNov 2 in 4 days
- New moon Mon, Nov 9 · 4:03 pmNov 9 in 11 days
- First quarter Tue, Nov 17 · 8:48 pmNov 17 in 19 days
- Full moon Tue, Nov 24 · 11:54 pmNov 24 in 26 days
Perigee on October 29, 226,426 mi away, coinciding with the spring tides from October 27 to 29: they will be stronger than usual.
Where to fish in Hirizo Beach
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
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
Drops off fastThe bottom drops off fast: the water is 33 ft deep just 360 ft from shore. It reaches 164 ft at 0.65 mi.
From the shoreline (1,200 ft from Hirizo Beach) out to sea, heading south.
How far from shore
- 16 ft deep130 ft
- 33 ft deep360 ft
- 66 ft deep1,100 ft
- 164 ft deep0.65 mi
For fishing, swimming and diving
- Shore fishing. Deep water close in: about 31 ft just 330 ft out. Good for casting from rocks, jetties or the beach itself; current and surf hit harder here.
- Swimming. The bottom drops quickly near the shore and you are soon out of your depth. Keep an eye on kids and weak swimmers.
- Diving. Shore diving works here: 33 ft at 360 ft and 66 ft at 1,100 ft from shore.
Rough estimate: here the data comes in cells of about 0.3 mi and misses details near shore (rocks, sandbars, small coves).
Source: NOAA ETOPO 2022 (CC0), cells of about 0.3 mi; depth below mean sea level. For reference only: not for navigation or anchoring.
Nearest lighthouse
Irōzaki Lighthouse 1.1 mi east
- Light
- A flash every 16 s, alternating white and red · Al.Fl WR 16s
- Range
- 18 nautical miles (21 mi)
- Light height
- 197 ft above sea level
- Tower height
- 36 ft
- Built
- 1871
Light details: NGA List of Lights (USA); the rest from Wikidata. For reference only: not for navigation. Wikipedia · Wikidata · Sources and licenses
Tides near Hirizo BeachTides nearby
- Minato4.3 mi
- Shimoda8.3 mi
- Matsuzaki10 mi
- Nishina12 mi
- Inatori17 mi
- Toi20 mi
- Heda25 mi
- Itō29 mi
- Shikine-jima30 mi
- Izunokuni31 mi
Hirizo Beach at a glance
- Beach. Coordinates: 34.607° N, 138.826° E.
- It is 34 mi southeast of Yaizu, the main place in Shizuoka. The sun rises 2 min earlier and sets 2 min earlier than in Yaizu.
- 4.3 mi from Minato.
- The nearest tide station, Irōzaki, is 1.4 mi to the east.
- Its coast faces south.
- Beaches and harbors nearby: Mera-Koura-kō (3.8 mi), Mera Gyokō (4.6 mi).
Questions about Hirizo BeachQuestions
Where is Hirizo Beach?
4.3 mi from Minato, in Shizuoka (Japan). The shore faces south.
What amenities does Hirizo Beach have?
According to OpenStreetMap: restrooms and parking. Some may be missing or out of date, so ask at the beach.
What time is high tide today in Hirizo Beach?
Today in Hirizo Beach there are high tides at 7:46 am (5.4 ft) and 6:17 pm (5.6 ft) and low tides at 12:47 am and 12:54 pm. Tide coefficient 93.
What time is sunset today in Hirizo Beach?
At 4:55 pm. There is light until the end of civil twilight, at 5:20 pm.
What time is sunrise tomorrow in Hirizo Beach?
At 6:03 am. First light comes at 5:07 am.
What phase is the moon today?
Waning gibbous, 88% illuminated. New moon on Mon, Nov 9 · 4:03 pm.
When are the next spring tides?
From October 27 to 29, together with the lunar perigee: they will be stronger than usual.
What are today's solunar periods?
Major 12:45–2:45 am, Minor 8:57–9:57 am, Major 1:17–3:17 pm, Minor 6:36–7:36 pm. Today's activity is medium.
What's the weather like today in Hirizo Beach?
Overcast, from 54 °F to 66 °F, with a moderate breeze from the northeast (13 mph) and a 14% chance of rain.
How is the sea today in Hirizo Beach?
Slight (Douglas 3): 3.5 ft waves with a period of 5.2 s from the east. The water is 76.1 °F.
When is the best time to visit Hirizo Beach?
The best time to visit Hirizo Beach is in August and in May: highs of 70 °F to 83 °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: Irōzaki 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).