Saikai tides today
- Tide now 6.8 ft ↑ rising · high 10:33 am (9.5 ft)
- Best time to fish 3:20–4:00 pm good day · 7/10
- Beach day 3:00–5:00 pm Poor beach day · 4/10
- Waves · water 0.3 ft · 75 °F calm (rippled) · 3.9 s from the west-northwest
- Wind · air 5 mph · 63 °F from the SE, gusts 11 · overcast
- Sun 6:36 am–5:33 pm 10 h 57 min of daylight
- Moon 88% · 7:49 pm waning gibbous · rises at 7:49 pm
- Best time to dive 3:20–5:30 pm great day · 9/10
Today in Saikai there are high tides at 10:33 am (9.5 ft) and 9:52 pm (9.1 ft) and low tides at 3:49 am and 4:23 pm. Tide coefficient 92. Right now the tide is rising toward the high tide at 10:33 am. The sun rises at 6:36 am and sets at 5:33 pm: 10 h 57 min of daylight. The moon is 88% illuminated (waning gibbous) and rises at 7:49 pm. Major solunar periods run from 1:23 am to 3:23 am and from 1:56 pm to 3:56 pm. The next spring tides arrive from October 27 to 29. The sea is calm (rippled), with 0.3 ft waves. There's a light breeze from the southeast (5 mph). Overcast, 63 °F.
Fishing in Saikai today
Best time to fish
Solunar activity today: medium- Low tide at 4:23 pm
- Major period 1:56–3:56 pm
- Steady pressure (30.15 inHg), almost no wind and calm sea (0.6 ft waves)
- 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, 3:20 pm to 4:00 pm, combines the 4:23 pm low tide and a major period. Also good from 9:30 am to 10:30 am, with the 10:33 am high tide, moonset and a light onshore breeze. Also good from 8:50 pm to 10:50 pm, with the 9:52 pm high tide and falling pressure.
Species with the most records nearby: striped mullet, red seabream, blackhead seabream and Japanese seabass. What you can catch
Beach day in Saikai
Is it a beach day?
- Feels like 71 °F: mild
- Almost no wind
- Calm for swimming: 0.6 ft waves
- Water at 75 °F (nice)
- Low tide at 4:23 pm: more sand
- Cloudy (100% cloud cover)
Today, hour by hour
- Swimming Calm · 0.6 ft
0.6 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
- Water 75 °F
Nice for swimming.
- Sun & sunscreen UV 2 · SPF 15
Max UV 2 (low): SPF 15 sunscreen.
- Wind 6 mph
Cross-shore breeze (6 mph).
- Tide & sand 4:23 pm
Low tide at 3:49 am and 4:23 pm: that's when there's the most sand. High tide at 10:33 am and 9:52 pm. Coefficient 92 (spring tides): little sand left at high tide.
The best window, 3:00 pm to 5:00 pm, brings little wind, a calm sea, water at 75 °F and low tide at 4:23 pm, though with clouds and a chance of rain.
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 Saikai
We don't know of any named beaches within 6.2 mi of Saikai.
Missing one? Beaches come from OpenStreetMap: you can add it there. Add or fix on OpenStreetMap
Beaches and amenities: © OpenStreetMap contributors (ODbL).
Webcams near Saikai
Webcams provided by windy.com — add a webcam
Tides in Saikai
Today's high and low tides
- ▼ Low tide 3:49 am 0.1 ft
- ▲ Next high tide 10:33 am 9.5 ft · coef. 92
- ▼ Low tide 4:23 pm 3.8 ft
- ▲ High tide 9:52 pm 9.1 ft · coef. 86
↑ Rising The tide is rising. 2 h 38 min to high tide at 10:33 am.
Tide coefficient 92 for the 10:33 am high tide and 86 for the 9:52 pm high tide. Spring tides. The water rises and falls 9.4 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 (10.4 ft) and the lowest, on December 25 (-1.2 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, 9.9 ft range). The smallest, on October 19 (coefficient 22, 3.1 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 · 5:33 pm | Low tide 3:49 am · 0.1 ft | High tide 10:33 am · 9.5 ft | Low tide 4:23 pm · 3.8 ft | High tide 9:52 pm · 9.1 ft | Coef. 92 | 88% | Major periods 1:23 am · 1:56 pm | Medium |
| Fri 30 | 6:37 am · 5:32 pm | Low tide 4:35 am · 0.5 ft | High tide 11:29 am · 8.9 ft | Low tide 5:12 pm · 4.4 ft | High tide 10:35 pm · 8.5 ft | Coef. 77 | 80% | Major periods 2:28 am · 3:00 pm | Medium |
| Sat 31 | 6:38 am · 5:31 pm | Low tide 5:26 am · 1.2 ft | High tide 12:36 pm · 8.2 ft | Low tide 6:12 pm · 5.0 ft | High tide 11:30 pm · 7.8 ft | Coef. 61 | 69% | Major periods 3:32 am · 4:03 pm | Medium |
| Sun 1 | 6:39 am · 5:30 pm | Low tide 6:29 am · 2.0 ft | High tide 2:01 pm · 7.8 ft | Low tide 7:36 pm · 5.2 ft | — | Coef. 46 | 58% | Major periods 4:32 am · 5:01 pm | Medium |
| Mon 2 | 6:40 am · 5:30 pm | High tide 12:50 am · 7.1 ft | Low tide 7:50 am · 2.7 ft | High tide 3:31 pm · 7.7 ft | Low tide 9:23 pm · 4.9 ft | Coef. 42 | Last quarter | Major periods 5:28 am · 5:54 pm | Medium |
| Tue 3 | 6:41 am · 5:29 pm | High tide 2:48 am · 6.9 ft | Low tide 9:24 am · 3.0 ft | High tide 4:37 pm · 7.9 ft | Low tide 10:40 pm · 4.2 ft | Coef. 47 | 36% | Major periods 6:19 am · 6:43 pm | Medium |
| Wed 4 | 6:41 am · 5:28 pm | High tide 4:25 am · 7.3 ft | Low tide 10:41 am · 3.0 ft | High tide 5:23 pm · 8.2 ft | Low tide 11:31 pm · 3.3 ft | Coef. 58 | 26% | Major periods 7:06 am · 7:29 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
Saikai has no station of its own, so we use the tide at Sasebo (Japan Coast Guard), 12 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: Japan Coast Guard, Hydrographic and Oceanographic Department, https://www1.kaiho.mlit.go.jp/TIDE/gauge/index_eng.php. Edited by Open Waters: constituent names, units and phases converted; tidal datums derived. Licensed Government Standard Terms of Use 2.0 (https://www1.kaiho.mlit.go.jp/copyright.html). Modified: see https://github.com/openwatersio/slackwater-database#modifications-to-source-data
The sea at Saikai
Sea stateSea state: calm (rippled)
The waves you may find
- Most commonMost common0.2 ft
- Significant0.3 ft
- Highest expectedHighest0.7 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 0.7 ft. Before heading out, expect waves of up to 0.7 ft.
Wind on the coast and offshore
Cross-shore wind. The coast faces southwest and the wind blows along the shore: drift and current run parallel to the beach.
Wave height, next 7 daysWaves, next 7 days
Waves build over the next few days. The biggest waves arrive on Monday 2: 3.2 ft with a period of 6 s, from the southwest (slight).
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 73.3 °F by Wednesday 4.
Water warmer than normal for late October (+2.5 °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 7:56 am (local time).
Diving in Saikai today
Diving and snorkeling today
Likely visibility: good- Slack water around low tide (4:23 pm): little current from 4:00 pm to 4:50 pm
- 0.5 ft swell at 3 s from the south: barely any surge
- Almost no wind
- 0.1 mph current toward the east, weak (model)
- Daylight
- Slack water today: low tide 3:49 am (3:30–4:10 am), high tide 10:33 am (10:00–11:00 am), low tide 4:23 pm (4:00–4:50 pm) and high tide 9:52 pm (9:30–10:20 pm)
- Likely visibility: good. The sea has been calm and there's been little rain. Based on the last 24 hours of data.
- Water at 74.8 °F: a 3 mm wetsuit.
- Snorkeling: good, calm sea and light wind.
- Night dive: dark from 5:59 pm. Waning gibbous (88%), rising at 7:49 pm: a bright night.
Your diving day at a glance
The best window, 3:20 pm to 5:30 pm, combines slack water at low tide, little swell, light wind and weak current. Also worth a look from 9:40 am to 12:10 pm, with slack water at high tide, little swell, light wind and the sun high, though with 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
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 Saikai
Now in Saikai
- Low / high
- 56 / 69 °F
- Rain
- 0.14 in · 83%
- Clouds
- 91%
- Humidity
- 81%
- Dew pointDew point
- 57 °F
- Visibility
- 15 mi
- UV indexUV
- 1 · low
- Air qualityAir
- Fair · 31
- 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 (+0.01 inHg in 3 hours). Over the next 48 hours: −0.05 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 | Clear | Clear | Overcast | Overcast | Light drizzle | Light drizzle | Overcast | Light drizzle |
| Temperature | 57° | 56° | 57° | 66° | 67° | 69° | 67° | 65° |
| Wind (mph) | 3 NNE | 1 NNE | 1 ESE | 6 SE | 5 WSW | 1 S | 0 W | 3 S |
| Gusts | 6 | 3 | 4 | 14 | 15 | 8 | 5 | 8 |
| Waves | 0.7 ft | 0.5 ft | 0.4 ft | 0.3 ft | 0.4 ft | 0.5 ft | 0.7 ft | 0.7 ft |
| Rain | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.01 in | 0.01 in | 0.00 in | 0.01 in |
- 9:00 am 66° 6 SE 0.3 ft
- 12:00 pm 67° 5 WSW 0.4 ft
- 3:00 pm 69° 1 S 0.5 ft
- 6:00 pm 67° 0 W 0.7 ft
- 9:00 pm 65° 3 S 0.7 ft
- 12:00 am 65° 3 S 0.7 ft
- 3:00 am 65° 5 SW 1.0 ft
- 6:00 am 65° 8 SW 1.0 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 29 | 56 / 69 °F | 6 mph S | 0.7 ft | 10:33 am · 9:52 pm | |
| Fri 30 | 62 / 70 °F | 11 mph W | 1.8 ft | 11:29 am · 10:35 pm | |
| Sat 31 | 58 / 70 °F | 11 mph NW | 1.9 ft | 12:36 pm · 11:30 pm | |
| Sun 1 | 56 / 70 °F | 11 mph SE | 1.3 ft | 2:01 pm | |
| Mon 2 | 62 / 72 °F | 18 mph W | 3.2 ft | 12:50 am · 3:31 pm | |
| Tue 3 | 58 / 66 °F | 9 mph N | 1.7 ft | 2:48 am · 4:37 pm | |
| Wed 4 | 58 / 63 °F | 9 mph NE | 1.0 ft | 4:25 am · 5:23 pm | |
| Thu 5 | 60 / 71 °F | 5 mph NNW | 0.6 ft | 5:32 am · 5:59 pm | |
| Fri 6 | 53 / 64 °F | 13 mph N | 1.2 ft | 6:24 am · 6:29 pm | |
| Sat 7 | 52 / 60 °F | 11 mph NE | 1.8 ft | 7:08 am · 6:58 pm | |
| Sun 8 | 55 / 66 °F | 10 mph NNW | 4.1 ft | 7:48 am · 7:26 pm | |
| Mon 9 | 50 / 59 °F | 10 mph NNW | 3.9 ft | 8:24 am · 7:55 pm | |
| Tue 10 | 48 / 60 °F | 9 mph NNW | 2.4 ft | 8:59 am · 8:23 pm | |
| Wed 11 | 52 / 62 °F | 4 mph NNW | 1.7 ft | 9:33 am · 8:53 pm |
- Fri 30 Rain 62° / 70° 1.8 ft
- Sat 31 Clear sky 58° / 70° 1.9 ft
- Sun 1 Overcast 56° / 70° 1.3 ft
- Mon 2 Rain 62° / 72° 3.2 ft
- Tue 3 Overcast 58° / 66° 1.7 ft
- Wed 4 Light drizzle 58° / 63° 1.0 ft
- Thu 5 Overcast 60° / 71° 0.6 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 wind tomorrow. See the models →
- Outlook The next few weeks look normal for the time of year. See the outlook →
- Normal Today, normal highs for late October (67 °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 7:56 am (local time).
The sun in Saikai
Sunrise and sunset
- First light 5:42 am
- Full dark 6:28 pm
- Civil dawn 6:11 am
- Civil dusk 5:59 pm
- Solar noon 12:05 pm (44° high)
- Daylight 10 h 57 min (−2 min)
- Evening golden hour 4:59 pm
- Full dark 6:28 pm
Golden hour and the day-night map
Today the sun is 92,344,274 mi away and looks 32′ 11″ across.
The moon in Saikai
Moon phase and position
Today the moon is 226,480 mi away and looks 32′ 46″ across.
Solunar periods
Today's activity: medium- 1:23–3:23 am Major · the moon passes overhead · high activity
- 1:56–3:56 pm Major · the moon passes underfoot · high activity
- 9:30–10:30 am Minor · moonset · medium activity
- 7:19–8:19 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 Saikai
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Filling Pier 7.2 mi
- Filling Pier 7.3 mi
- Jetty 4.0 mi
- Jetty 9.1 mi
- Port of Segawa 5.7 mi
- Sukui-no-Ura Bay 6.7 mi
- Yokose-Ura Bay 7.0 mi
- Tai-no-Ura Bay 7.5 mi
- Tawara-ga-Ura Bay 9.1 mi
- しまづ釣具店 4.9 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.
Tides near SaikaiTides nearby
- Kawatana12 mi
- Sasebo13 mi
- Togitsu14 mi
- Sonogishukugō14 mi
- Ōmura16 mi
- Obita16 mi
- Furukawamen18 mi
- Nagasaki20 mi
- Imari23 mi
- Isahaya23 mi
Saikai at a glance
- Town or city of about 26,275 people. Coordinates: 32.984° N, 129.681° E.
- It is 20 mi northwest of Nagasaki, the main place in Nagasaki. The sun rises 1 min later and sets 1 min later than in Nagasaki.
- The nearest tide station, Sasebo, is 12 mi to the north.
- Its coast faces southwest.
- Beaches and harbors nearby: Nanatsugama Kō (2.0 mi), Ōsetoyanagi Kō (2.2 mi), Seto Kō (4.0 mi), Ōtawa Kō (4.3 mi).
Questions about SaikaiQuestions
What time is high tide today in Saikai?
Today in Saikai there are high tides at 10:33 am (9.5 ft) and 9:52 pm (9.1 ft) and low tides at 3:49 am and 4:23 pm. Tide coefficient 92.
What time is sunset today in Saikai?
At 5:33 pm. There is light until the end of civil twilight, at 5:59 pm.
What time is sunrise tomorrow in Saikai?
At 6:37 am. First light comes at 5:43 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 1:23–3:23 am, Minor 9:30–10:30 am, Major 1:56–3:56 pm, Minor 7:19–8:19 pm. Today's activity is medium.
What's the weather like today in Saikai?
Drizzle, from 56 °F to 69 °F, with a light breeze from the southeast (5 mph) and a 83% chance of rain.
How is the sea today in Saikai?
Calm (rippled) (Douglas 1): 0.3 ft waves with a period of 3.9 s from the west-northwest. The water is 74.8 °F.
When is the best time to visit Saikai?
The best time to visit Saikai is in October: highs of 72 °F, about 7 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: Sasebo station of the Hydrographic and Oceanographic Department of the Japan Coast Guard. 出典：海上保安庁ホームページ, under the Government of Japan Standard Terms of Use 2.0; harmonic constants adapted by Open Waters, via Slackwater database (changes) (海上保安庁海洋情報部「潮汐調和定数」を加工して作成). Not an official Japan Coast Guard publication. Sun and moon: our own calculation with astronomy-engine. Places: GeoNames (CC BY 4.0). Coastline: © OpenStreetMap contributors (ODbL).