Shiriuchi tides today
- Tide now 1.5 ft ↑ rising · high 5:15 pm (2.8 ft)
- Best time to fish 4:10–6:10 pm average day · 6/10
- Beach day Not today Not a beach day · 0/10
- Waves · water 1.3 ft · 63 °F smooth · 5.3 s from the south-southwest
- Wind · air 11 mph · 54 °F from the SSW, gusts 26 · overcast
- Sun 6:06 am–4:38 pm 10 h 32 min of daylight
- Moon 88% · 6:32 pm waning gibbous · rises at 6:32 pm
- Diving tomorrow 8:50–11:50 am good day · 8/10
- Thunderstorm Advisory (雷注意報) · Shiriuchi Town: take care. Until further notice. Japan Meteorological Agency (JMA), issued today at 7:24 am · Public Data License 1.0
Official text
Japanese
渡島・檜山地方雷・乾燥注意報
渡島、檜山地方では、竜巻などの激しい突風や急な強い雨、落雷と、空気の乾燥した状態が続くため火の取り扱いに注意してください。
知内町：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 Shiriuchi there are high tides at 6:26 am (1.7 ft) and 5:15 pm (2.8 ft) and low tides at 12:14 am and 10:32 am. Tide coefficient 94. Right now the tide is rising toward the high tide at 5:15 pm. The sun rises at 6:06 am and sets at 4:38 pm: 10 h 32 min of daylight. The moon is 88% illuminated (waning gibbous) and rises at 6:32 pm. Major solunar periods run from 12:38 am to 2:38 am and from 1:11 pm to 3:11 pm. The next spring tides arrive from October 27 to 29. The sea is smooth, with 1.3 ft waves. There's a gentle breeze from the south-southwest (11 mph). Overcast, 54 °F.
Fishing in Shiriuchi today
Best time to fish
Solunar activity today: medium- High tide at 5:15 pm, coefficient 90
- Minor period 6:02–7:02 pm (moonrise)
- Sunset at 4:38 pm, golden hour from 3:58 pm
- Rising pressure (+0.09 inHg in 24 h), light onshore wind (7 mph) and some swell (2.2 ft waves) to stir the water
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 94 (spring tides)
Your day at a glance
The best window, 4:10 pm to 6:10 pm, combines the 5:15 pm high tide, moonrise, sunset, a light onshore breeze and some swell, though with rising pressure. Also worth a try from 5:40 am to 6:50 am, with the 6:26 am high tide and sunrise, though with rising pressure. Also worth a try from 9:30 am to 10:20 am, with the 10:32 am low tide and moonset, though with rising pressure.
Beach day in Shiriuchi
Is it a beach day?
- Cross-shore breeze (11 mph)
- Calm for swimming: 1.8 ft waves
- Low tide at 10:32 am: more sand
- Cloudy (87% cloud cover)
- Feels like 47 °F: chilly for the beach
- Rain (0.04 in)
Today, hour by hour
- Swimming Calm · 1.8 ft
1.8 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
- Water 63 °F
Cold: ease in slowly.
- Sun & sunscreen UV 3 · SPF 15
Max UV 3 (low): SPF 15 sunscreen.
- Wind 11 mph
Cross-shore breeze (11 mph).
- Tide & sand 12:14 am
Low tide at 12:14 am and 10:32 am: that's when there's the most sand. High tide at 6:26 am and 5:15 pm.
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 Shiriuchi
We don't know of any named beaches within 6.2 mi of Shiriuchi.
Missing one? Beaches come from OpenStreetMap: you can add it there. Add or fix on OpenStreetMap
Beaches and amenities: © OpenStreetMap contributors (ODbL).
Webcams near Shiriuchi
Webcams provided by windy.com — add a webcam
Tides in Shiriuchi
Today's high and low tides
- ▼ Low tide 12:14 am 0.2 ft
- ▲ High tide 6:26 am 1.7 ft · coef. 94
- ▼ Low tide 10:32 am 1.3 ft
- ▲ Next high tide 5:15 pm 2.8 ft · coef. 90
↑ Rising The tide is rising. 5 h 2 min to high tide at 5:15 pm.
Tide coefficient 94 for the 6:26 am high tide and 90 for the 5:15 pm high tide. Spring tides. The water rises and falls 2.6 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 July 15 (3.0 ft) and the lowest, on April 19 (-0.2 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 10 to 12 (coefficient 100, 2.2 ft range). The smallest, on October 19 (coefficient 26, 1.2 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 | 6:06 am · 4:38 pm | Low tide 12:14 am · 0.2 ft | High tide 6:26 am · 1.7 ft | Low tide 10:32 am · 1.3 ft | High tide 5:15 pm · 2.8 ft | Coef. 94 | 88% | Major periods 12:38 am · 1:11 pm | Medium |
| Fri 30 | 6:07 am · 4:36 pm | Low tide 1:06 am · 0.3 ft | High tide 7:16 am · 1.6 ft | Low tide 10:58 am · 1.3 ft | High tide 5:59 pm · 2.8 ft | Coef. 84 | 80% | Major periods 1:43 am · 2:15 pm | High |
| Sat 31 | 6:08 am · 4:35 pm | Low tide 2:01 am · 0.4 ft | High tide 8:11 am · 1.5 ft | Low tide 11:29 am · 1.3 ft | High tide 6:49 pm · 2.6 ft | Coef. 71 | 69% | Major periods 2:47 am · 3:18 pm | Medium |
| Sun 1 | 6:10 am · 4:34 pm | Low tide 3:01 am · 0.6 ft | High tide 9:20 am · 1.4 ft | Low tide 12:11 pm · 1.3 ft | High tide 7:49 pm · 2.4 ft | Coef. 57 | 58% | Major periods 3:48 am · 4:16 pm | Medium |
| Mon 2 | 6:11 am · 4:32 pm | Low tide 4:05 am · 0.7 ft | High tide 10:45 am · 1.4 ft | Low tide 1:36 pm · 1.4 ft | High tide 9:09 pm · 2.1 ft | Coef. 46 | Last quarter | Major periods 4:43 am · 5:10 pm | Medium |
| Tue 3 | 6:12 am · 4:31 pm | Low tide 5:09 am · 0.8 ft | High tide 11:55 am · 1.5 ft | Low tide 4:45 pm · 1.3 ft | High tide 10:54 pm · 1.9 ft | Coef. 46 | 36% | Major periods 5:35 am · 5:59 pm | Medium |
| Wed 4 | 6:13 am · 4:30 pm | Low tide 6:05 am · 0.8 ft | High tide 12:41 pm · 1.7 ft | Low tide 6:32 pm · 1.1 ft | — | Coef. 50 | 26% | Major periods 6:22 am · 6:45 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
Shiriuchi has no station of its own, so we use the tide at Yoshioka (TICON-4), 14 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 Shiriuchi
Sea stateSea state: smooth
The waves you may find
- Most commonMost common0.7 ft
- Significant1.3 ft
- Highest expectedHighest2.8 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 2.8 ft. Before heading out, expect waves of up to 2.8 ft.
Wind on the coast and offshore
Cross-shore wind. The coast faces southeast and the wind blows along the shore: drift and current run parallel to the beach.
Wave height, next 7 daysWaves, next 7 days
Waves stay much the same all week. The biggest waves arrive on Friday 30: 3.0 ft with a period of 5 s, from the south-southwest (slight).
Water temperature
Water temperature →The satellite measured 3.4 °F more 2 days ago than the model gives now: the water is probably warmer than the forecast says.
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 59.6 °F by Wednesday 4.
Water colder than normal for late October (−2.0 °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 12:13 pm (local time).
Diving in Shiriuchi today
Diving and snorkeling today
Likely visibility: good- Slack water around high tide (6:26 am): little current from 6:00 am to 7:00 am
- 1.1 ft swell at 4 s from the southwest: barely any surge
- Light cross-shore wind (4 mph)
- 0.5 mph current toward the north-northwest, weak (model)
- Daylight
- Slack water today: low tide 12:14 am (11:59 pm–12:30 am), high tide 6:26 am (6:00–7:00 am), low tide 10:32 am (9:50–11:00 am) and high tide 5:15 pm (5:00–5:30 pm)
- Likely visibility: good. Rain (0.28 in) over the last few days has stirred up the water. Based on the last 24 hours of data.
- Water at 62.2 °F: a 7 mm wetsuit, with hood and booties.
- Snorkeling: good, calm sea and light wind.
- Night dive: dark from 5:06 pm. Waning gibbous (88%), rising at 6:32 pm: a bright night.
Your diving day at a glance
The best window, 6:30 am to 9:30 am, combines slack water at high tide, little swell, 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
We have no dive sites, dive shops or wrecks on record within 12 mi of Shiriuchi.
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 Shiriuchi
Now in Shiriuchi
- Low / high
- 40 / 55 °F
- Rain
- 0.74 in · 100%
- Clouds
- 100%
- Humidity
- 44%
- Dew pointDew point
- 33 °F
- Visibility
- 15 mi
- UV indexUV
- 2 · low
- Air qualityAir
- Fair · 32
- 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: −0.50 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 | Light drizzle | Light drizzle | Clear | Overcast | Overcast | Overcast | Heavy drizzle | Rain |
| Temperature | 40° | 41° | 41° | 49° | 54° | 55° | 50° | 51° |
| Wind (mph) | 9 WNW | 9 WNW | 1 SSW | 6 SSW | 11 SSW | 10 S | 5 S | 6 SSW |
| Gusts | 20 | 20 | 8 | 14 | 26 | 26 | 17 | 20 |
| Waves | 1.9 ft | 1.8 ft | 1.5 ft | 1.2 ft | 1.3 ft | 1.8 ft | 2.4 ft | 2.9 ft |
| Rain | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.04 in | 0.13 in |
- 12:00 pm 54° 11 SSW 1.3 ft
- 3:00 pm 55° 10 S 1.8 ft
- 6:00 pm 50° 5 S 2.4 ft
- 9:00 pm 51° 6 SSW 2.9 ft
- 12:00 am 52° 3 SW 3.0 ft
- 3:00 am 51° 0 W 2.6 ft
- 6:00 am 52° 9 S 2.1 ft
- 9:00 am 56° 8 S 1.8 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 29 | 40 / 55 °F | 11 mph SW | 3.0 ft | 6:26 am · 5:15 pm | |
| Fri 30 | 51 / 61 °F | 10 mph S | 3.0 ft | 7:16 am · 5:59 pm | |
| Sat 31 | 42 / 58 °F | 16 mph WNW | 2.4 ft | 8:11 am · 6:49 pm | |
| Sun 1 | 37 / 46 °F | 21 mph WNW | 2.7 ft | 9:20 am · 7:49 pm | |
| Mon 2 | 37 / 50 °F | 9 mph NE | 1.7 ft | 10:45 am · 9:09 pm | |
| Tue 3 | 40 / 48 °F | 17 mph WNW | 1.8 ft | 11:55 am · 10:54 pm | |
| Wed 4 | 35 / 49 °F | 14 mph WNW | 1.7 ft | 12:41 pm | |
| Thu 5 | 35 / 58 °F | 4 mph ESE | 0.9 ft | 12:35 am · 1:17 pm | |
| Fri 6 | 38 / 51 °F | 18 mph WNW | 2.3 ft | 1:54 am · 1:50 pm | |
| Sat 7 | 37 / 40 °F | 17 mph WNW | 3.9 ft | 2:55 am · 2:21 pm | |
| Sun 8 | 34 / 40 °F | 8 mph NNW | 3.4 ft | 3:47 am · 2:50 pm | |
| Mon 9 | 31 / 37 °F | 11 mph NW | 2.6 ft | 4:32 am · 3:19 pm | |
| Tue 10 | 31 / 39 °F | 15 mph NW | 4.7 ft | 5:13 am · 3:48 pm | |
| Wed 11 | 30 / 41 °F | 11 mph WNW | 3.7 ft | 5:52 am · 4:19 pm |
- Fri 30 Rain 51° / 61° 3.0 ft
- Sat 31 Rain 42° / 58° 2.4 ft
- Sun 1 Light drizzle 37° / 46° 2.7 ft
- Mon 2 Drizzle 37° / 50° 1.7 ft
- Tue 3 Light snow 40° / 48° 1.8 ft
- Wed 4 Light snow 35° / 49° 1.7 ft
- Thu 5 Light drizzle 35° / 58° 0.9 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 on Saturday 31. See the models →
- Outlook Next few weeks, compared with normal: a bit cooler, normal rain and a near-normal sea. See the outlook →
- Normal Today, cooler than normal for late October (−2.9 °F; normal high: 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 12:13 pm (local time).
The sun in Shiriuchi
Sunrise and sunset
- First light 5:05 am
- Full dark 5:39 pm
- Civil dawn 5:37 am
- Civil dusk 5:06 pm
- Solar noon 11:22 am (35° high)
- Daylight 10 h 32 min (−3 min)
- Evening golden hour 3:58 pm
- Full dark 5:39 pm
Golden hour and the day-night map
Today the sun is 92,344,998 mi away and looks 32′ 11″ across.
The moon in Shiriuchi
Moon phase and position
Today the moon is 226,480 mi away and looks 32′ 46″ across.
Solunar periods
Today's activity: medium- 12:38–2:38 am Major · the moon passes overhead · high activity
- 1:11–3:11 pm Major · the moon passes underfoot · high activity
- 9:17–10:17 am Minor · moonset · medium activity
- 6:02–7:02 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 Shiriuchi
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.
Tides near ShiriuchiTides nearby
- Kikonai5.7 mi
- Fukushima12 mi
- Hokuto18 mi
- Kamiiso19 mi
- Hakodate20 mi
- Matsumae20 mi
- Kaminokuni21 mi
- Sai26 mi
- Ōma26 mi
- Furukamaya29 mi
Shiriuchi at a glance
- Town or city of about 4,167 people. Coordinates: 41.601° N, 140.423° E.
- It is 20 mi southwest of Hakodate, the main place in Hokkaido. The sun rises 1 min later and sets 2 min later than in Hakodate.
- The nearest tide station, Yoshioka, is 14 mi to the southwest.
- Its coast faces southeast.
Questions about ShiriuchiQuestions
What time is high tide today in Shiriuchi?
Today in Shiriuchi there are high tides at 6:26 am (1.7 ft) and 5:15 pm (2.8 ft) and low tides at 12:14 am and 10:32 am. Tide coefficient 94.
What time is sunset today in Shiriuchi?
At 4:38 pm. There is light until the end of civil twilight, at 5:06 pm.
What time is sunrise tomorrow in Shiriuchi?
At 6:07 am. First light comes at 5:06 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 12:38–2:38 am, Minor 9:17–10:17 am, Major 1:11–3:11 pm, Minor 6:02–7:02 pm. Today's activity is medium.
What's the weather like today in Shiriuchi?
Rain, from 40 °F to 55 °F, with a gentle breeze from the south-southwest (11 mph) and a 100% chance of rain.
How is the sea today in Shiriuchi?
Smooth (Douglas 2): 1.3 ft waves with a period of 5.3 s from the south-southwest. The water is 62.6 °F.
When is the best time to visit Shiriuchi?
The best time to visit Shiriuchi is from June to September: highs of 67 °F to 78 °F, about 10 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: Yoshioka 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).