Shiraoi tides today
- Tide now 4.7 ft ↑ rising · high 4:00 pm (5.0 ft)
- Best time to fish 3:50–5:00 pm average day · 6/10
- Beach day Not today Not a beach day · 0/10
- Waves · water 2.1 ft · 56 °F slight · 4.9 s from the south
- Wind · air 13 mph · 51 °F from the SSW, gusts 25 · overcast
- Sun 6:04 am–4:32 pm 10 h 28 min of daylight
- Moon 88% · 6:24 pm waning gibbous · rises at 6:24 pm
- Diving tomorrow 9:00 am–12:00 pm good day · 8/10
- Gale Advisory (強風注意報) · Shiraoi Town: winds up to 27 mph on land, take care. Until further notice. Japan Meteorological Agency (JMA), issued today at 10:02 am · Public Data License 1.0
Official text
Japanese
胆振・日高地方暴風（雪）警報・注意報
胆振、日高地方では、強風に注意してください。
白老町：強風注意報（発表）
陸上 最大風速：１２メートル出典：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.
- Thunderstorm Advisory (雷注意報) · Shiraoi Town: take care. Until further notice. Japan Meteorological Agency (JMA), issued today at 10:02 am · Public Data License 1.0
Official text
Japanese
胆振・日高地方雷注意報
胆振、日高地方では、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。
白老町：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 Shiraoi there are high tides at 5:45 am (4.1 ft) and 4:00 pm (5.0 ft) and low tides at 10:17 am and 11:22 pm. Tide coefficient 95. Right now the tide is rising toward the high tide at 4:00 pm. The sun rises at 6:04 am and sets at 4:32 pm: 10 h 28 min of daylight. The moon is 88% illuminated (waning gibbous) and rises at 6:24 pm. Major solunar periods run from 12:35 am to 2:35 am and from 1:07 pm to 3:07 pm. The next spring tides arrive from October 27 to 29. The sea is slight, with 2.1 ft waves. There's a moderate breeze from the south-southwest (13 mph). Overcast, 51 °F.
Fishing in Shiraoi today
Best time to fish
Solunar activity today: medium- High tide at 5:45 am, coefficient 95
- Sunrise at 6:04 am
- Rising pressure (+0.57 inHg in 24 h), almost no wind and some swell (1.9 ft waves) to stir the water
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 95 (spring tides)
Your day at a glance
The best window, 5:30 am to 6:40 am, combines the 5:45 am high tide, sunrise and some swell, though with rising pressure. Also worth a try from 3:50 pm to 5:00 pm, with the 4:00 pm high tide, sunset and some swell, though with rising pressure and moderate wind. Also worth a try from 9:20 am to 10:20 am, with the 10:17 am low tide, moonset and a light onshore breeze, though with rising pressure.
Beach day in Shiraoi
Is it a beach day?
- Sun and clouds
- Calm for swimming: 2.2 ft waves
- Low tide at 10:17 am: more sand
- Feels like 43 °F: chilly for the beach
- Moderate onshore wind (13 mph): choppy water
- Water at 56 °F (very cold)
Today, hour by hour
- Swimming Calm · 2.2 ft
2.2 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
- Water 56 °F
Very cold: ease in and keep swims short.
- Sun & sunscreen UV 2 · SPF 15
Max UV 2 (low): SPF 15 sunscreen.
- Wind 13 mph
Moderate onshore wind (13 mph).
- Tide & sand 11:22 pm
Low tide at 10:17 am and 11:22 pm: that's when there's the most sand. High tide at 5:45 am and 4:00 pm. Coefficient 95 (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 Shiraoi
We don't know of any named beaches within 6.2 mi of Shiraoi.
Missing one? Beaches come from OpenStreetMap: you can add it there. Add or fix on OpenStreetMap
Beaches and amenities: © OpenStreetMap contributors (ODbL).
Webcams near Shiraoi
Webcams provided by windy.com — add a webcam
Tides in Shiraoi
Today's high and low tides
- ▲ High tide 5:45 am 4.1 ft · coef. 95
- ▼ Low tide 10:17 am 3.0 ft
- ▲ Next high tide 4:00 pm 5.0 ft · coef. 91
- ▼ Low tide 11:22 pm -0.1 ft
↑ Rising The tide is rising. 1 h 16 min to high tide at 4:00 pm.
Tide coefficient 95 for the 5:45 am high tide and 91 for the 4:00 pm high tide. Spring tides. The water rises and falls 5.1 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 16 (5.2 ft) and the lowest, on December 24 (-0.6 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 11 to 12 (coefficient 104, 4.4 ft range). The smallest, on October 19 (coefficient 22, 2.3 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 · 4:32 pm | High tide 5:45 am · 4.1 ft | Low tide 10:17 am · 3.0 ft | High tide 4:00 pm · 5.0 ft | Low tide 11:22 pm · -0.1 ft | Coef. 95 | 88% | Major periods 12:35 am · 1:07 pm | Medium |
| Fri 30 | 6:05 am · 4:31 pm | High tide 6:45 am · 3.8 ft | Low tide 10:46 am · 3.1 ft | High tide 4:34 pm · 5.0 ft | — | Coef. 84 | 80% | Major periods 1:39 am · 2:11 pm | High |
| Sat 31 | 6:06 am · 4:30 pm | Low tide 12:11 am · 0.2 ft | High tide 7:57 am · 3.6 ft | Low tide 11:18 am · 3.2 ft | High tide 5:11 pm · 4.7 ft | Coef. 69 | 69% | Major periods 2:43 am · 3:14 pm | Medium |
| Sun 1 | 6:08 am · 4:28 pm | Low tide 1:07 am · 0.5 ft | High tide 9:15 am · 3.4 ft | Low tide 11:56 am · 3.2 ft | High tide 5:55 pm · 4.3 ft | Coef. 53 | 58% | Major periods 3:44 am · 4:12 pm | Medium |
| Mon 2 | 6:09 am · 4:27 pm | Low tide 2:19 am · 0.9 ft | High tide 10:26 am · 3.4 ft | Low tide 1:05 pm · 3.3 ft | High tide 6:55 pm · 3.8 ft | Coef. 40 | Last quarter | Major periods 4:40 am · 5:06 pm | Medium |
| Tue 3 | 6:10 am · 4:26 pm | Low tide 3:42 am · 1.3 ft | High tide 11:21 am · 3.5 ft | Low tide 4:50 pm · 3.0 ft | High tide 9:25 pm · 3.3 ft | Coef. 39 | 36% | Major periods 5:31 am · 5:55 pm | Medium |
| Wed 4 | 6:11 am · 4:24 pm | Low tide 4:54 am · 1.5 ft | High tide 11:59 am · 3.6 ft | Low tide 6:08 pm · 2.3 ft | High tide 11:54 pm · 3.4 ft | Coef. 51 | 26% | Major periods 6:18 am · 6:41 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 Shiraoi station (TICON-4), 2.5 mi from Shiraoi. 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 Shiraoi
Sea stateSea state: slight
The waves you may find
- Most commonMost common1.1 ft
- Significant2.1 ft
- Highest expectedHighest4.4 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 4.4 ft. Before heading out, expect waves of up to 4.4 ft.
Wind on the coast and offshore
Cross-onshore wind. The coast faces south 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 stay much the same all week. The biggest waves arrive on Sunday 1: 4.6 ft with a period of 6 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 54.2 °F by Wednesday 4.
Water colder than normal for late October (−2.2 °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 2:44 pm (local time).
Surf in Shiraoi today
Surf today
Poor- 1.4–2.1 ft surf at the shore, a fun size for most surfers
- 0.9 ft swell at 11 s from the southeast, average
- Light onshore wind (11 mph): a bit of chop
- Rising tide (high tide at 4:00 pm)
- Light: First light 5:35 am · sunrise 6:04 am · sunset 4:32 pm · last light 5:01 pm
- Tide: high 5:45 am (4.1 ft), low 10:17 am (3.0 ft), high 4:00 pm (5.0 ft) and low 11:22 pm (-0.1 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 55.6 °F: a 5/4 fullsuit with booties (and a hood if it’s windy).
- Energy: 16 kJ · Low power
Today’s surf at a glance
The best window is 11:00 am to 3:00 pm, though with onshore wind.
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 Shiraoi today
Diving and snorkeling today
Likely visibility: good- Slack water around low tide (10:17 am): little current from 9:50 am to 10:40 am
- 0.9 ft swell at 8 s from the south-southwest: barely any surge
- Light onshore wind (5 mph)
- 0.4 mph current toward the east-northeast, weak (model)
- Sun high: more light underwater
- Slack water today: high tide 5:45 am (5:10–6:30 am), low tide 10:17 am (9:50–10:40 am), high tide 4:00 pm (3:40–4:15 pm) and low tide 11:22 pm (11:07–11:40 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 55.6 °F: a 7 mm semi-dry suit, with hood, gloves and booties.
- Snorkeling: good, calm sea and light wind.
- Night dive: dark from 5:01 pm. Waning gibbous (88%), rising at 6:24 pm: a bright night.
Your diving day at a glance
The best window, 9:10 am to 11:30 am, combines slack water at low tide, little swell, light wind, weak current and the sun high. Also good from 6:00 am to 7:00 am, with 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 Shiraoi.
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 Shiraoi
Now in Shiraoi
- Low / high
- 36 / 52 °F
- Rain
- 0.41 in · 100%
- Clouds
- 100%
- Humidity
- 55%
- Dew pointDew point
- 36 °F
- Visibility
- 15 mi
- UV indexUV
- 0 · 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 (−0.05 inHg in 3 hours). Over the next 48 hours: −0.49 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 | Clear | Clear | Clear | Mainly clear | Overcast | Overcast | Light drizzle | Light rain |
| Temperature | 36° | 38° | 37° | 46° | 50° | 52° | 52° | 51° |
| Wind (mph) | 4 WNW | 7 W | 2 WSW | 3 SW | 11 SSW | 13 SSW | 16 SSW | 10 S |
| Gusts | 10 | 14 | 10 | 9 | 23 | 25 | 30 | 19 |
| Waves | 1.9 ft | 2.1 ft | 1.9 ft | 1.4 ft | 1.3 ft | 2.2 ft | 3.5 ft | 3.9 ft |
| Rain | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.07 in |
- 3:00 pm 52° 13 SSW 2.2 ft
- 6:00 pm 52° 16 SSW 3.5 ft
- 9:00 pm 51° 10 S 3.9 ft
- 12:00 am 51° 8 SSW 4.2 ft
- 3:00 am 50° 5 SW 4.3 ft
- 6:00 am 51° 6 SW 4.1 ft
- 9:00 am 56° 10 SSW 3.7 ft
- 12:00 pm 59° 7 S 3.4 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 29 | 36 / 52 °F | 16 mph SSW | 4.1 ft | 5:45 am · 4:00 pm | |
| Fri 30 | 48 / 59 °F | 10 mph SSW | 4.3 ft | 6:45 am · 4:34 pm | |
| Sat 31 | 40 / 59 °F | 13 mph W | 4.3 ft | 7:57 am · 5:11 pm | |
| Sun 1 | 35 / 44 °F | 17 mph WNW | 4.6 ft | 9:15 am · 5:55 pm | |
| Mon 2 | 34 / 47 °F | 4 mph N | 3.1 ft | 10:26 am · 6:55 pm | |
| Tue 3 | 37 / 47 °F | 13 mph WNW | 3.5 ft | 11:21 am · 9:25 pm | |
| Wed 4 | 34 / 46 °F | 9 mph WNW | 2.8 ft | 11:59 am · 11:54 pm | |
| Thu 5 | 35 / 53 °F | 9 mph E | 3.1 ft | 12:28 pm | |
| Fri 6 | 39 / 54 °F | 15 mph W | 5.0 ft | 1:13 am · 12:53 pm | |
| Sat 7 | 34 / 39 °F | 14 mph WNW | 3.6 ft | 2:13 am · 1:18 pm | |
| Sun 8 | 32 / 40 °F | 7 mph WNW | 2.8 ft | 3:04 am · 1:43 pm | |
| Mon 9 | 29 / 37 °F | 8 mph NW | 2.3 ft | 3:50 am · 2:09 pm | |
| Tue 10 | 28 / 40 °F | 15 mph NW | 3.9 ft | 4:33 am · 2:37 pm | |
| Wed 11 | 28 / 38 °F | 10 mph WNW | 2.6 ft | 5:15 am · 3:06 pm |
- Fri 30 Light rain 48° / 59° 4.3 ft
- Sat 31 Light drizzle 40° / 59° 4.3 ft
- Sun 1 Partly cloudy 35° / 44° 4.6 ft
- Mon 2 Drizzle 34° / 47° 3.1 ft
- Tue 3 Drizzle 37° / 47° 3.5 ft
- Wed 4 Drizzle 34° / 46° 2.8 ft
- Thu 5 Light drizzle 35° / 53° 3.1 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 cooler, normal rain and a cooler sea. See the outlook →
- Normal Today, cooler than normal for late October (−3.5 °F; normal high: 55 °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 2:44 pm (local time).
The sun in Shiraoi
Sunrise and sunset
- First light 5:02 am
- Full dark 5:34 pm
- Civil dawn 5:35 am
- Civil dusk 5:01 pm
- Solar noon 11:18 am (34° high)
- Daylight 10 h 28 min (−3 min)
- Evening golden hour 3:52 pm
- Full dark 5:34 pm
Golden hour and the day-night map
Today the sun is 92,345,061 mi away and looks 32′ 11″ across.
The moon in Shiraoi
Moon phase and position
Today the moon is 226,480 mi away and looks 32′ 46″ across.
Solunar periods
Today's activity: medium- 12:35–2:35 am Major · the moon passes overhead · high activity
- 1:07–3:07 pm Major · the moon passes underfoot · high activity
- 9:18–10:18 am Minor · moonset · medium activity
- 5:54–6:54 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 Shiraoi
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
Deepens quicklyThe bottom deepens quickly: 33 ft of water 1,100 ft from shore. It reaches 164 ft at 2.7 mi.
From the shoreline (0.45 mi from Shiraoi) out to sea, heading south.
How far from shore
- 16 ft deep650 ft
- 33 ft deep1,100 ft
- 66 ft deep0.85 mi
- 164 ft deep2.7 mi
For fishing, swimming and diving
- Shore fishing. 33 ft of water just 1,100 ft from shore: a good cast reaches deep water. 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 1,100 ft and 66 ft at 0.85 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.
Tides near ShiraoiTides nearby
All places in Hokkaido, A to Z (561) →Shiraoi at a glance
- Town or city of about 17,759 people. Coordinates: 42.550° N, 141.350° E.
- It is 62 mi northeast of Hakodate, the main place in Hokkaido. The sun rises 1 min earlier and sets 4 min earlier than in Hakodate.
- The nearest tide station, Shiraoi, is 2.5 mi to the southwest.
- Its coast faces south.
Questions about ShiraoiQuestions
What time is high tide today in Shiraoi?
Today in Shiraoi there are high tides at 5:45 am (4.1 ft) and 4:00 pm (5.0 ft) and low tides at 10:17 am and 11:22 pm. Tide coefficient 95.
What time is sunset today in Shiraoi?
At 4:32 pm. There is light until the end of civil twilight, at 5:01 pm.
What time is sunrise tomorrow in Shiraoi?
At 6:05 am. First light comes at 5:03 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 12:35–2:35 am, Minor 9:18–10:18 am, Major 1:07–3:07 pm, Minor 5:54–6:54 pm. Today's activity is medium.
What's the weather like today in Shiraoi?
Light rain, from 36 °F to 52 °F, with a moderate breeze from the south-southwest (13 mph) and a 100% chance of rain.
How is the sea today in Shiraoi?
Slight (Douglas 3): 2.1 ft waves with a period of 4.9 s from the south. The water is 55.9 °F.
When is the best time to visit Shiraoi?
The best time to visit Shiraoi is from July to September: highs of 70 °F to 74 °F, about 11 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: Shiraoi 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).