Kadena tides today
- Tide now 6.0 ft ↑ rising · high 8:52 am (6.4 ft)
- Best time to fish 2:00–3:20 pm good day · 8/10
- Beach day 9:00 am–12:00 pm Good beach day · 7/10
- Waves · water 3.8 ft · 80 °F slight · 6.8 s from the north
- Wind · air 10 mph · 76 °F from the ENE, gusts 19 · clear sky
- Surf today 1.9–2.9 ft Fair day · 4/10 · 6:12–10:00 am
- Sun 6:36 am–5:49 pm 11 h 13 min of daylight
- Moon 88% · 8:18 pm waning gibbous · rises at 8:18 pm
Today in Kadena there are high tides at 8:52 am (6.4 ft) and 8:08 pm (6.8 ft) and low tides at 2:15 am and 2:18 pm. Tide coefficient 92. Right now the tide is rising toward the high tide at 8:52 am. The sun rises at 6:36 am and sets at 5:49 pm: 11 h 13 min of daylight. The moon is 88% illuminated (waning gibbous) and rises at 8:18 pm. Major solunar periods run from 1:31 am to 3:31 am and from 2:04 pm to 4:04 pm. The next spring tides arrive from October 27 to 29. The sea is slight, with 3.8 ft waves. There's a gentle breeze from the east-northeast (10 mph). Clear sky, 76 °F.
Fishing in Kadena today
Best time to fish
Solunar activity today: medium- Low tide at 2:18 pm
- Major period 2:04–4:04 pm
- Steady pressure (30.06 inHg), light offshore wind (9 mph) and some swell (3.1 ft waves) to stir the water
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 92 (spring tides)
Your day at a glance
The best window, 2:00 pm to 3:20 pm, combines the 2:18 pm low tide, a major period and some swell. Also good from 1:30 am to 3:20 am, with the 2:15 am low tide, a major period and some swell. Also good from 7:50 pm to 8:50 pm, with the 8:08 pm high tide, moonrise and some swell.
Species with the most records nearby: mahi-mahi, bluefin trevally and giant trevally. What you can catch
Beach day in Kadena
Is it a beach day?
3 good hours- Mostly sunny
- Feels like 83 °F: beach weather
- Calm for swimming: 3.7 ft waves
- UV 4 (moderate): SPF 30 sunscreen
- Water at 80 °F (warm)
- Rain (0.01 in)
Today, hour by hour
- Swimming Calm · 3.7 ft
3.7 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
- Water 81 °F
Warm: very pleasant.
- Sun & sunscreen UV 6 · SPF 30
Max UV 6 (moderate): SPF 30 sunscreen, reapplied every 2 hours.
- Wind 10 mph
Offshore breeze (10 mph). Watch floats and inflatables: offshore wind carries them out to sea.
- Tide & sand 2:18 pm
Low tide at 2:15 am and 2:18 pm: that's when there's the most sand. High tide at 8:52 am and 8:08 pm. Coefficient 92 (spring tides): little sand left at high tide.
The best window, 9:00 am to 12:00 pm, brings sunshine, beach weather, a calm sea and water at 80 °F, though with rain 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
Beaches near Kadena
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Toguchi Beach 1.3 mi · W
- Parking
- Sunabe Beach 2.2 mi · S
- Restrooms
- Parking
- 都屋ビーチ 2.8 mi · NW
- Parking
- Jomon Sea 2.8 mi · S
- Restrooms
- Parking
- 天浜(てぃんぬはま） 3.1 mi · NW
- Parking
- Sunset Beach 3.6 mi · S
- Restrooms
- Parking
- Murasaki Mura Beach 3.8 mi · NW
- Restrooms
- Parking
- Tropical Beach 6.0 mi · S
- Lifeguard
- Restrooms
- Showers
- 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 Kadena
Webcams provided by windy.com — add a webcam
Tides in Kadena
Today's high and low tides
- ▼ Low tide 2:15 am 0.0 ft
- ▲ Next high tide 8:52 am 6.4 ft · coef. 92
- ▼ Low tide 2:18 pm 3.0 ft
- ▲ High tide 8:08 pm 6.8 ft · coef. 87
↑ Rising The tide is rising. 1 h 4 min to high tide at 8:52 am.
Tide coefficient 92 for the 8:52 am high tide and 87 for the 8:08 pm high tide. Spring tides. The water rises and falls 6.8 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 14 (7.6 ft) and the lowest, on December 25 (-1.0 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 104, 6.9 ft range). The smallest, on October 19 (coefficient 25, 2.6 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 | 6:36 am · 5:49 pm | Low tide 2:15 am · 0.0 ft | High tide 8:52 am · 6.4 ft | Low tide 2:18 pm · 3.0 ft | High tide 8:08 pm · 6.8 ft | Coef. 92 | 88% | Major periods 1:31 am · 2:04 pm | Medium |
| Fri 30 | 6:37 am · 5:48 pm | Low tide 3:02 am · 0.2 ft | High tide 9:46 am · 6.0 ft | Low tide 3:02 pm · 3.4 ft | High tide 8:51 pm · 6.5 ft | Coef. 79 | 80% | Major periods 2:36 am · 3:08 pm | Medium |
| Sat 31 | 6:37 am · 5:48 pm | Low tide 3:56 am · 0.6 ft | High tide 10:48 am · 5.5 ft | Low tide 3:56 pm · 3.7 ft | High tide 9:43 pm · 6.0 ft | Coef. 64 | 69% | Major periods 3:40 am · 4:11 pm | Medium |
| Sun 1 | 6:38 am · 5:47 pm | Low tide 4:59 am · 1.1 ft | High tide 12:04 pm · 5.3 ft | Low tide 5:18 pm · 3.9 ft | High tide 10:58 pm · 5.5 ft | Coef. 50 | 58% | Major periods 4:40 am · 5:09 pm | Medium |
| Mon 2 | 6:38 am · 5:46 pm | Low tide 6:15 am · 1.6 ft | High tide 1:31 pm · 5.2 ft | Low tide 7:12 pm · 3.8 ft | — | Coef. 43 | Last quarter | Major periods 5:36 am · 6:02 pm | Medium |
| Tue 3 | 6:39 am · 5:46 pm | High tide 12:44 am · 5.2 ft | Low tide 7:40 am · 1.9 ft | High tide 2:42 pm · 5.5 ft | Low tide 8:46 pm · 3.2 ft | Coef. 47 | 36% | Major periods 6:27 am · 6:51 pm | Medium |
| Wed 4 | 6:40 am · 5:45 pm | High tide 2:28 am · 5.2 ft | Low tide 8:54 am · 2.0 ft | High tide 3:32 pm · 5.8 ft | Low tide 9:46 pm · 2.5 ft | Coef. 58 | 26% | Major periods 7:14 am · 7:37 pm | Low |
▲ 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
Kadena has no station of its own, so we use the tide at Nakagusuku (TICON-4), 5.7 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 Kadena
Sea stateSea state: slight
The waves you may find
- Most commonMost common1.9 ft
- Significant3.8 ft
- Highest expectedHighest7.8 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 7.8 ft. Before heading out, expect waves of up to 7.8 ft.
Wind on the coast and offshore
Offshore wind. The coast faces west 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 stay much the same all week. The biggest waves arrive on Wednesday 4: 5.3 ft with a period of 6 s, from the north-northeast (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 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 7:48 am (local time).
Surf in Kadena today
Surf today
Fair- 1.9–2.9 ft surf at the shore, a fun size for most surfers
- 3.5 ft swell at 6 s from the north-northwest, short: weak, messy waves
- Light offshore wind (10 mph): it holds up and grooms the waves
- First or last light of the day
- Rising tide (high tide at 8:52 am)
- Light: First light 6:12 am · sunrise 6:36 am · sunset 5:49 pm · last light 6:13 pm
- Tide: low 2:15 am (-0.0 ft), high 8:52 am (6.4 ft), low 2:18 pm (3.0 ft) and high 8:08 pm (6.8 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 80.4 °F: boardshorts or a swimsuit and a rash guard.
- Energy: 89 kJ · Low power
Today’s surf at a glance
The best window, 6:12 am to 10:00 am, has a good size and light offshore wind, though with a short-period swell. 12:00 pm to 4:00 pm can also work, with light offshore wind, 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 Kadena today
Diving and snorkeling today
Likely visibility: fair- Slack water around low tide (2:18 pm): little current from 1:50 pm to 2:50 pm
- 2.8 ft swell at 6 s from the north-northwest: some surge on the bottom
- Light offshore wind (9 mph)
- 0.4 mph current toward the west-southwest, weak (model)
- Sun high: more light underwater
- Slack water today: low tide 2:15 am (2:00–2:30 am), high tide 8:52 am (8:30–9:20 am), low tide 2:18 pm (1:50–2:50 pm) and high tide 8:08 pm (7:40–8:30 pm)
- Likely visibility: fair. Swell (up to 5.9 ft at 7 s) over the last few days has stirred up the water. Based on the last 24 hours of data.
- Water at 80.4 °F: a shorty or a rash guard.
- Snorkeling: doable, with some waves or wind.
- Night dive: dark from 6:13 pm. Waning gibbous (88%), rising at 8:18 pm: a bright night.
Your diving day at a glance
The best window, 1:10 pm to 3:10 pm, combines slack water at low tide, light wind, weak current and the sun high. Also good from 8:10 am to 10:50 am, with slack water at high tide, light wind, weak current and the sun high.
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
- 砂辺 2.7 mi
- Cape Maeda Fish seen: Lavender Tang, Pomacentrus amboinensis, Chromis kennensis, Neoglyphidodon nigroris 5.2 mi
- Toilet Bowl 11 mi
- okinawabluedive 0.5 mi
- Mergulho em Okinawa - Aloha Divers Okinawa 1.0 mi
- Marine Service 1.0 mi
- DEEP EMOTION marine 1.2 mi
- Diving shop HIRO-sea 1.2 mi
- なんくるダイバーズ沖縄 1.3 mi
- JAM Marine Club 1.3 mi
- 沖縄ダイビングと青の洞窟のシーモール 1.8 mi
- Exchange Dive Shop - H.I.D Aqros 2.1 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). Sites and fish: Reef Life Survey / IMOS NRMN, CC BY 4.0; fish names, Wikidata.
Weather in Kadena
Now in Kadena
- Low / high
- 73 / 81 °F
- Rain
- 0.19 in · 96%
- Clouds
- 12%
- Humidity
- 73%
- Dew pointDew point
- 67 °F
- Visibility
- 15 mi
- UV indexUV
- 1 · low
- Air qualityAir
- Moderate · 41
- Saharan dust
- No
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). It barely changes over the next 48 hours. 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 | Light drizzle | Light drizzle | Light drizzle | Mainly clear | Light drizzle | Light drizzle | Drizzle | Light drizzle |
| Temperature | 73° | 73° | 74° | 78° | 80° | 81° | 76° | 76° |
| Wind (mph) | 8 ENE | 8 NE | 10 ENE | 10 ENE | 10 E | 9 E | 7 E | 8 E |
| Gusts | 14 | 16 | 18 | 20 | 20 | 19 | 12 | 15 |
| Waves | 4.9 ft | 4.4 ft | 4.1 ft | 3.7 ft | 3.3 ft | 3.1 ft | 3.0 ft | 2.8 ft |
| Rain | 0.00 in | 0.01 in | 0.00 in | 0.00 in | 0.00 in | 0.01 in | 0.03 in | 0.00 in |
- 9:00 am 78° 10 ENE 3.7 ft
- 12:00 pm 80° 10 E 3.3 ft
- 3:00 pm 81° 9 E 3.1 ft
- 6:00 pm 76° 7 E 3.0 ft
- 9:00 pm 76° 8 E 2.8 ft
- 12:00 am 75° 9 ESE 2.5 ft
- 3:00 am 75° 4 SE 2.2 ft
- 6:00 am 74° 4 NNW 2.0 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 29 | 73 / 81 °F | 10 mph ENE | 4.9 ft | 8:52 am · 8:08 pm | |
| Fri 30 | 74 / 81 °F | 12 mph NNE | 3.5 ft | 9:46 am · 8:51 pm | |
| Sat 31 | 72 / 78 °F | 12 mph NNE | 3.5 ft | 10:48 am · 9:43 pm | |
| Sun 1 | 71 / 79 °F | 9 mph ESE | 2.9 ft | 12:04 pm · 10:58 pm | |
| Mon 2 | 71 / 80 °F | 7 mph NNW | 1.4 ft | 1:31 pm | |
| Tue 3 | 73 / 79 °F | 14 mph NNE | 5.2 ft | 12:44 am · 2:42 pm | |
| Wed 4 | 74 / 81 °F | 13 mph NE | 5.3 ft | 2:28 am · 3:32 pm | |
| Thu 5 | 74 / 80 °F | 13 mph N | 4.8 ft | 3:45 am · 4:11 pm | |
| Fri 6 | 73 / 80 °F | 14 mph NE | 3.7 ft | 4:43 am · 4:44 pm | |
| Sat 7 | 72 / 78 °F | 15 mph ENE | 4.3 ft | 5:32 am · 5:15 pm | |
| Sun 8 | 74 / 79 °F | 13 mph E | 3.3 ft | 6:14 am · 5:43 pm | |
| Mon 9 | 70 / 75 °F | 16 mph NE | 8.8 ft | 6:53 am · 6:11 pm | |
| Tue 10 | 68 / 72 °F | 15 mph NNE | 7.8 ft | 7:30 am · 6:39 pm | |
| Wed 11 | 68 / 74 °F | 10 mph NE | 4.4 ft | 8:05 am · 7:06 pm |
- Fri 30 Drizzle 74° / 81° 3.5 ft
- Sat 31 Mainly clear 72° / 78° 3.5 ft
- Sun 1 Mainly clear 71° / 79° 2.9 ft
- Mon 2 Overcast 71° / 80° 1.4 ft
- Tue 3 Overcast 73° / 79° 5.2 ft
- Wed 4 Light drizzle 74° / 81° 5.3 ft
- Thu 5 Partly cloudy 74° / 80° 4.8 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.
- The models Partly agree · medium confidence: unsure about rain today. See the models →
- Outlook Next few weeks, compared with normal: a bit warmer, a bit drier and a slightly warmer sea. See the outlook →
- Normal Today, normal highs for late October (79 °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 7:48 am (local time).
The sun in Kadena
Sunrise and sunset
- First light 5:45 am
- Full dark 6:40 pm
- Civil dawn 6:12 am
- Civil dusk 6:13 pm
- Solar noon 12:13 pm (50° high)
- Daylight 11 h 13 min (−1 min)
- Evening golden hour 5:17 pm
- Full dark 6:40 pm
Golden hour and the day-night map
Today the sun is 92,344,145 mi away and looks 32′ 11″ across.
The moon in Kadena
Moon phase and position
Today the moon is 226,480 mi away and looks 32′ 46″ across.
Solunar periods
Today's activity: medium- 1:31–3:31 am Major · the moon passes overhead · high activity
- 2:04–4:04 pm Major · the moon passes underfoot · high activity
- 9:19–10:19 am Minor · moonset · medium activity
- 7:48–8:48 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 Kadena
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Jetty 3.1 mi
- Jetty 3.3 mi
- Jetty 5.9 mi
- Jetty 5.9 mi
- Boat ramp 2.9 mi
- Boat ramp 2.9 mi
- Boat ramp 5.2 mi
- Kadena Marina 1.3 mi
- FISHING SHOP SANNORY 3.1 mi
- SEALAND 3.5 mi
- Kaiyou Fishing Store 3.7 mi
- LegaSea Fishing 4.0 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 900 ft from shore. It reaches 164 ft at 1.4 mi.
From the shoreline (1.3 mi from Kadena) out to sea, heading west.
How far from shore
- 16 ft deep500 ft
- 33 ft deep900 ft
- 66 ft deep0.4 mi
- 164 ft deep1.4 mi
For fishing, swimming and diving
- Shore fishing. Deep water close in: about 7.5 ft just 330 ft out. Good for casting from rocks, jetties or the beach itself; 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 900 ft and 66 ft at 0.4 mi 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
Cape Zanpa Lighthouse 5.9 mi northwest
- Light
- 2 white flashes every 10 s · Fl(2) W 10s
- Range
- 18 nautical miles (21 mi)
- Light height
- 144 ft above sea level
- Tower height
- 102 ft
Light details: NGA List of Lights (USA); the rest from Wikidata. For reference only: not for navigation. Wikidata · Sources and licenses
Tides near KadenaTides nearby
- Yomitan2.7 mi
- Okinawa3.3 mi
- Chatan3.9 mi
- Kishaba4.8 mi
- Ishikawa5.6 mi
- Uruma6.3 mi
- Gushikawa6.7 mi
- Ginowan7.1 mi
- Katsuren-haebaru7.5 mi
- Urasoe7.5 mi
Kadena at a glance
- Town or city of about 13,671 people. Coordinates: 26.365° N, 127.759° E.
- It is 12 mi northeast of Naha, the main place in Okinawa. The sun rises at the same time and sets at the same time than in Naha.
- The nearest tide station, Nakagusuku, is 5.7 mi to the southeast.
- Its coast faces west.
Questions about KadenaQuestions
What time is high tide today in Kadena?
Today in Kadena there are high tides at 8:52 am (6.4 ft) and 8:08 pm (6.8 ft) and low tides at 2:15 am and 2:18 pm. Tide coefficient 92.
What time is sunset today in Kadena?
At 5:49 pm. There is light until the end of civil twilight, at 6:13 pm.
What time is sunrise tomorrow in Kadena?
At 6:37 am. First light comes at 5:45 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 1:31–3:31 am, Minor 9:19–10:19 am, Major 2:04–4:04 pm, Minor 7:48–8:48 pm. Today's activity is medium.
What's the weather like today in Kadena?
Drizzle, from 73 °F to 81 °F, with a gentle breeze from the east-northeast (10 mph) and a 96% chance of rain.
How is the sea today in Kadena?
Slight (Douglas 3): 3.8 ft waves with a period of 6.8 s from the north. The water is 80.4 °F.
When is the best time to visit Kadena?
The best time to visit Kadena is from October to December: highs of 70 °F to 82 °F, about 10 rainy days a month and 4 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: Nakagusuku 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).