Sai tides today
- Tide now 2.2 ft ↑ rising · high 4:14 pm (3.0 ft)
- Best time to fish 4:00–5:00 pm good day · 7/10
- Beach day Not today Not a beach day · 0/10
- Waves · water 2.7 ft · 68 °F slight · 6.0 s from the west-southwest
- Wind · air 17 mph · 55 °F from the SSW, gusts 21 · overcast
- Sun 6:04 am–4:36 pm 10 h 32 min of daylight
- Moon 88% · 6:31 pm waning gibbous · rises at 6:31 pm
- Best time to dive 12:10–1:40 pm fair day · 4/10
- Thunderstorm Advisory (雷注意報) · Sai Village: take care. Until further notice. Japan Meteorological Agency (JMA), issued today at 12:30 pm · Public Data License 1.0
Official text
Japanese
青森県雷注意報
青森県では、竜巻などの激しい突風や急な強い雨、落雷に注意してください。
佐井村：雷注意報（竜巻、ひょう）（発表）出典：気象庁ホームページ (https://www.jma.go.jp/). TidePlanet has extracted this area’s warnings from the JMA’s, translated their names and converted their figures to the chosen units: this is not an official JMA publication.
Today in Sai there are high tides at 5:16 am (2.8 ft) and 4:14 pm (3.0 ft) and low tides at 10:31 am and 11:29 pm. Tide coefficient 96. Right now the tide is rising toward the high tide at 4:14 pm. The sun rises at 6:04 am and sets at 4:36 pm: 10 h 32 min of daylight. The moon is 88% illuminated (waning gibbous) and rises at 6:31 pm. Major solunar periods run from 12:37 am to 2:37 am and from 1:09 pm to 3:09 pm. The next spring tides arrive from October 27 to 29. The sea is slight, with 2.7 ft waves. There's a moderate breeze from the south-southwest (17 mph). Overcast, 55 °F.
Fishing in Sai today
Best time to fish
Solunar activity today: medium- Low tide at 10:31 am
- Minor period 9:15–10:15 am (moonset)
- Rising pressure (+0.40 inHg in 24 h), light onshore wind (12 mph) and some swell (3.2 ft waves) to stir the water
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 96 (spring tides)
Your day at a glance
The best window, 9:30 am to 10:10 am, combines the 10:31 am low tide, moonset, a light onshore breeze and some swell, though with rising pressure. Also worth a try from 5:40 am to 6:20 am, with the 5:16 am high tide, sunrise and some swell, though with rising pressure and moderate wind. Also worth a try from 4:00 pm to 5:00 pm, with the 4:14 pm high tide, sunset and some swell, though with fresh wind.
Beach day in Sai
Is it a beach day?
- Water at 68 °F (cool)
- Low tide at 10:31 am: more sand
- Cloudy (80% cloud cover)
- Feels like 46 °F: chilly for the beach
- Moderate onshore wind (17 mph): choppy water
- Swim with care: 4.1 ft waves every 7 s
Today, hour by hour
- Swimming Use care · 4.1 ft
4.1 ft waves every 7 s: swim with care and stay where you can stand. Low rip current risk. Always follow the lifeguard's flags.
- Water 68 °F
Cool: refreshing on a hot day.
- Sun & sunscreen UV 3 · SPF 15
Max UV 3 (low): SPF 15 sunscreen.
- Wind 17 mph
Moderate onshore wind (17 mph).
- Tide & sand 11:29 pm
Low tide at 10:31 am and 11:29 pm: that's when there's the most sand. High tide at 5:16 am and 4:14 pm. Coefficient 96 (spring tides): little sand left at high tide.
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 Sai
We don't know of any named beaches within 6.2 mi of Sai.
Missing one? Beaches come from OpenStreetMap: you can add it there. Add or fix on OpenStreetMap
Beaches and amenities: © OpenStreetMap contributors (ODbL).
Webcams near Sai
Webcams provided by windy.com — add a webcam
Tides in Sai
Today's high and low tides
- ▲ High tide 5:16 am 2.8 ft · coef. 96
- ▼ Low tide 10:31 am 1.6 ft
- ▲ Next high tide 4:14 pm 3.0 ft · coef. 91
- ▼ Low tide 11:29 pm 0.3 ft
↑ Rising The tide is rising. 2 h 49 min to high tide at 4:14 pm.
Tide coefficient 96 for the 5:16 am high tide and 91 for the 4:14 pm high tide. Spring tides. The water rises and falls 2.7 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 29 (3.1 ft) and the lowest, on April 19 (-0.5 ft).
Mixed: two high and two low tides a day, but of quite different heights.
Heights above chart datum (CD), the zero of that port's nautical charts. 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 (CD)
Tide coefficient and range in October
The biggest tides of the month came from October 26 to 28 (coefficient 104, 2.8 ft range). The smallest, on October 19 (coefficient 25, 1.0 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 | 6:04 am · 4:36 pm | High tide 5:16 am · 2.8 ft | Low tide 10:31 am · 1.6 ft | High tide 4:14 pm · 3.0 ft | Low tide 11:29 pm · 0.3 ft | Coef. 96 | 88% | Major periods 12:37 am · 1:09 pm | Medium |
| Fri 30 | 6:05 am · 4:35 pm | High tide 6:04 am · 2.6 ft | Low tide 11:07 am · 1.7 ft | High tide 4:50 pm · 2.9 ft | — | Coef. 84 | 80% | Major periods 1:41 am · 2:13 pm | High |
| Sat 31 | 6:06 am · 4:33 pm | Low tide 12:15 am · 0.5 ft | High tide 6:59 am · 2.4 ft | Low tide 11:48 am · 1.8 ft | High tide 5:31 pm · 2.7 ft | Coef. 68 | 69% | Major periods 2:45 am · 3:16 pm | Medium |
| Sun 1 | 6:08 am · 4:32 pm | Low tide 1:09 am · 0.7 ft | High tide 8:08 am · 2.3 ft | Low tide 12:41 pm · 1.9 ft | High tide 6:21 pm · 2.5 ft | Coef. 52 | 58% | Major periods 3:46 am · 4:14 pm | Medium |
| Mon 2 | 6:09 am · 4:31 pm | Low tide 2:19 am · 0.9 ft | High tide 9:36 am · 2.2 ft | Low tide 2:14 pm · 1.9 ft | High tide 7:38 pm · 2.2 ft | Coef. 39 | Last quarter | Major periods 4:42 am · 5:08 pm | Medium |
| Tue 3 | 6:10 am · 4:30 pm | Low tide 3:47 am · 1.0 ft | High tide 10:53 am · 2.2 ft | Low tide 4:58 pm · 1.7 ft | High tide 10:02 pm · 2.1 ft | Coef. 40 | 36% | Major periods 5:33 am · 5:57 pm | Medium |
| Wed 4 | 6:11 am · 4:29 pm | Low tide 5:06 am · 1.1 ft | High tide 11:48 am · 2.3 ft | Low tide 6:09 pm · 1.4 ft | High tide 11:55 pm · 2.2 ft | Coef. 52 | 26% | Major periods 6:20 am · 6:43 pm | Medium |
▲ high tide · ▼ low tide · heights above chart datum (CD). Major periods: start time; they last 2 hours. Activity: based on the moon phase and the solunar periods.
Where this tide comes from
Sai has no station of its own, so we use the tide at Oma (JMA), 7.4 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: Source: Japan Meteorological Agency website (出典：気象庁ホームページ), tide table (潮位表) for Oma (大間), https://www.data.jma.go.jp/kaiyou/db/tide/suisan/suisan.php?stn=B4. Public Data License (Version 1.0) (https://www.digital.go.jp/resources/open_data/public_data_license_v1.0), compatible with CC BY 4.0. Modified by TidePlanet (気象庁「潮位表」を加工して作成): harmonic constants fitted from the hourly prediction of 2025–2026; not an official JMA product.
The sea at Sai
Sea stateSea state: slight
The waves you may find
- Most commonMost common1.3 ft
- Significant2.7 ft
- Highest expectedHighest5.5 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 5.5 ft. Before heading out, expect waves of up to 5.5 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 west 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 Sunday 1: 7.8 ft with a period of 6 s, from the west (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 66.3 °F by Wednesday 4.
Water colder than normal for late October (−1.2 °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 1:14 pm (local time).
Diving in Sai today
Diving and snorkeling today
Likely visibility: poor- Slack water around low tide (10:31 am): little current from 10:10 am to 11:00 am
- 3.1 ft swell at 6 s from the west: some surge on the bottom
- Light onshore wind (12 mph)
- 1.2 mph current toward the northeast, strong (model)
- Sun high: more light underwater
- Slack water today: high tide 5:16 am (5:00–5:40 am), low tide 10:31 am (10:10–11:00 am), high tide 4:14 pm (3:59–4:30 pm) and low tide 11:29 pm (11:10–11:50 pm)
- Likely visibility: poor. Swell (up to 3.8 ft at 9 s), rain (0.22 in) and wind over the last few days have stirred up the water. Based on the last 24 hours of data.
- Water at 67.6 °F: a 5 mm wetsuit.
- Snorkeling: better not, with these waves, wind or current.
- Night dive: dark from 5:05 pm. Waning gibbous (88%), rising at 6:31 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 and the sun high, though with current. Also worth a look from 12:10 pm to 1:40 pm, with the sun high, though with tidal current, moderate wind and current. Also worth a look from 3:40 pm to 4:40 pm, with slack water at high tide, though with fresh 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
We have no dive sites, dive shops or wrecks on record within 12 mi of Sai.
If you know one, you can add it to OpenStreetMap and it will show up here after the next update. Missing one? Add it to OpenStreetMap
Sites: © OpenStreetMap contributors (ODbL).
Weather in Sai
Now in Sai
- Low / high
- 47 / 56 °F
- Rain
- 0.21 in · 100%
- Clouds
- 97%
- Humidity
- 49%
- Dew pointDew point
- 36 °F
- Visibility
- 15 mi
- UV indexUV
- 1 · low
- Air qualityAir
- Fair · 33
- 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 (−0.06 inHg in 3 hours). Over the next 48 hours: −0.48 inHg. 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 | Mainly clear | Mainly clear | Clear | Partly cloudy | Overcast | Overcast | Overcast | Drizzle |
| Temperature | 47° | 47° | 48° | 50° | 53° | 56° | 56° | 56° |
| Wind (mph) | 21 WNW | 20 W | 14 W | 11 SW | 16 SSW | 17 SSW | 21 S | 21 SSW |
| Gusts | 28 | 27 | 24 | 17 | 21 | 21 | 27 | 26 |
| Waves | 6.0 ft | 5.6 ft | 4.4 ft | 3.4 ft | 2.8 ft | 2.6 ft | 3.0 ft | 3.5 ft |
| Rain | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.02 in |
- 3:00 pm 56° 17 SSW 2.6 ft
- 6:00 pm 56° 21 S 3.0 ft
- 9:00 pm 56° 21 SSW 3.5 ft
- 12:00 am 55° 21 SSW 4.2 ft
- 3:00 am 55° 19 S 3.9 ft
- 6:00 am 56° 19 S 3.2 ft
- 9:00 am 58° 16 S 2.8 ft
- 12:00 pm 61° 18 SSW 2.7 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 29 | 47 / 56 °F | 21 mph SW | 6.0 ft | 5:16 am · 4:14 pm | |
| Fri 30 | 55 / 62 °F | 21 mph SSW | 4.2 ft | 6:04 am · 4:50 pm | |
| Sat 31 | 48 / 60 °F | 30 mph W | 6.8 ft | 6:59 am · 5:31 pm | |
| Sun 1 | 45 / 48 °F | 30 mph W | 7.8 ft | 8:08 am · 6:21 pm | |
| Mon 2 | 46 / 56 °F | 17 mph E | 2.3 ft | 9:36 am · 7:38 pm | |
| Tue 3 | 47 / 53 °F | 27 mph WNW | 4.5 ft | 10:53 am · 10:02 pm | |
| Wed 4 | 47 / 51 °F | 31 mph WNW | 4.9 ft | 11:48 am · 11:55 pm | |
| Thu 5 | 48 / 58 °F | 10 mph SSE | 1.9 ft | 12:28 pm | |
| Fri 6 | 44 / 59 °F | 28 mph W | 6.4 ft | 1:03 am · 1:02 pm | |
| Sat 7 | 42 / 44 °F | 27 mph WNW | 5.4 ft | 1:55 am · 1:32 pm | |
| Sun 8 | 40 / 44 °F | 20 mph N | 4.7 ft | 2:39 am · 2:02 pm | |
| Mon 9 | 39 / 43 °F | 19 mph NW | 3.1 ft | 3:19 am · 2:31 pm | |
| Tue 10 | 40 / 45 °F | 33 mph W | 6.2 ft | 3:55 am · 3:01 pm | |
| Wed 11 | 40 / 47 °F | 21 mph WNW | 4.9 ft | 4:30 am · 3:31 pm |
- Fri 30 Light rain 55° / 62° 4.2 ft
- Sat 31 Heavy drizzle 48° / 60° 6.8 ft
- Sun 1 Light drizzle 45° / 48° 7.8 ft
- Mon 2 Heavy drizzle 46° / 56° 2.3 ft
- Tue 3 Heavy drizzle 47° / 53° 4.5 ft
- Wed 4 Heavy drizzle 47° / 51° 4.9 ft
- Thu 5 Light drizzle 48° / 58° 1.9 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 wind tomorrow. See the models →
- Outlook Next few weeks, compared with normal: a bit cooler, normal rain and a slightly cooler sea. See the outlook →
- Normal Today, normal highs for late October (58 °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 1:14 pm (local time).
The sun in Sai
Sunrise and sunset
- First light 5:03 am
- Full dark 5:37 pm
- Civil dawn 5:35 am
- Civil dusk 5:05 pm
- Solar noon 11:20 am (35° high)
- Daylight 10 h 32 min (−3 min)
- Evening golden hour 3:57 pm
- Full dark 5:37 pm
Golden hour and the day-night map
Today the sun is 92,345,028 mi away and looks 32′ 11″ across.
The moon in Sai
Moon phase and position
Today the moon is 226,480 mi away and looks 32′ 46″ across.
Solunar periods
Today's activity: medium- 12:37–2:37 am Major · the moon passes overhead · high activity
- 1:09–3:09 pm Major · the moon passes underfoot · high activity
- 9:15–10:15 am Minor · moonset · medium activity
- 6:01–7:01 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 Sai
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Jetty 1.8 mi
- Jetty 3.1 mi
- Jetty 4.6 mi
- Jetty 4.8 mi
- Jetty 5.1 mi
- Jetty 5.5 mi
- Jetty 6.0 mi
- Jetty 6.2 mi
- Jetty 6.5 mi
- Jetty 7.0 mi
- 蛇浦漁港 7.5 mi
- 易国間漁港 8.1 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.
Tides near SaiTides nearby
- Ōma7.1 mi
- Furukamaya7.6 mi
- Mutsu21 mi
- Hakodate25 mi
- Shiriuchi26 mi
- Imabetsu26 mi
- Kikonai28 mi
- Kanita29 mi
- Sarugamori29 mi
- Hokuto29 mi
Sai at a glance
- Town or city of about 1,930 people. Coordinates: 41.430° N, 140.864° E.
- It is 43 mi north of Aomori, the main place in Aomori. The sun rises at the same time and sets 2 min earlier than in Aomori.
- The nearest tide station, Oma, is 7.4 mi to the north.
- Its coast faces west.
- Beaches and harbors nearby: Sai Gyokō (0.4 mi), Yagoshi Fishing Port (1.4 mi), Isoya Fishing Port (2.7 mi), Zaimoku Fishing Port (3.1 mi).
Questions about SaiQuestions
What time is high tide today in Sai?
Today in Sai there are high tides at 5:16 am (2.8 ft) and 4:14 pm (3.0 ft) and low tides at 10:31 am and 11:29 pm. Tide coefficient 96.
What time is sunset today in Sai?
At 4:36 pm. There is light until the end of civil twilight, at 5:05 pm.
What time is sunrise tomorrow in Sai?
At 6:05 am. First light comes at 5:04 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 12:37–2:37 am, Minor 9:15–10:15 am, Major 1:09–3:09 pm, Minor 6:01–7:01 pm. Today's activity is medium.
What's the weather like today in Sai?
Light rain, from 47 °F to 56 °F, with a moderate breeze from the south-southwest (17 mph) and a 100% chance of rain.
How is the sea today in Sai?
Slight (Douglas 3): 2.7 ft waves with a period of 6.0 s from the west-southwest. The water is 67.6 °F.
When is the best time to visit Sai?
The best time to visit Sai is from July to September: highs of 72 °F to 77 °F, about 11 rainy days a month and 5 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: Oma point of the Japan Meteorological Agency (JMA) tide tables. 出典：気象庁ホームページ, under the Public Data License 1.0 (compatible with CC BY 4.0); constants fitted by TidePlanet from two years of its hourly predictions (気象庁「潮位表」を加工して作成). Not an official JMA publication. Sun and moon: our own calculation with astronomy-engine. Places: GeoNames (CC BY 4.0). Coastline: © OpenStreetMap contributors (ODbL).