Beach forecast for Shirahama
Today, Thursday, October 29, 2026 · local time (GMT+9) · Okinawa, Japan Today, Thu, Oct 29 · GMT+9- Swimming
- Calm · 3.6 ft
- Water
- 82 °F · warm
- Max UV
- 7 · SPF 50
- Low tide
- 3:35 am and 3:32 pm
Today, Thursday, October 29, it's a good beach day in Shirahama (7/10). The best hours are from 1:00 pm to 6:00 pm: beach weather, little wind, water at 82 °F and low tide at 3:32 pm, though with clouds. The best day this week is Monday, November 2, at 10/10.
Beach forecast for the next 7 days
| Day | Rating | Best hours | Swimming | Water | UV |
|---|---|---|---|---|---|
| Today | 7Good beach day | 1:00–6:00 pm8:00–10:00 am | Calm · 3.6 ft | 82 °F | 7 |
| Fri 30 | 8Good beach day | 8:00 am–12:00 pm1:00–3:00 pm | Calm · 2.7 ft | 81 °F | 7 |
| Sat 31 | 6Fair beach day | 2:00–6:00 pm | Use care · 3.9 ft | 81 °F | 6 |
| Sun 1 | 9Perfect beach day | 1:00–6:00 pm8:00 am–12:00 pm | Calm · 2.6 ft | 82 °F | 7 |
| Mon 2 | 10Perfect beach day | 8:00 am–12:00 pm | Calm · 2.1 ft | 82 °F | 7 |
| Tue 3 | 6Fair beach day | 3:00–6:00 pm | Use care · 4.5 ft | 81 °F | — |
| Wed 4 | 8Good beach day | 1:00–6:00 pm9:00 am–12:00 pm | Calm · 3.4 ft | 81 °F | — |
Each rating comes from sun, temperature, rain, wind, waves, UV, water temperature and, where there is one, the tide.
Today in detail
8 good hours- Feels like 82 °F: beach weather
- Cross-shore breeze (8 mph)
- UV 7 (high): SPF 50 sunscreen
- Water at 82 °F (warm)
- Low tide at 3:32 pm: more sand
- Cloudy (80% cloud cover)
Today, hour by hour
- Swimming Calm · 3.6 ft
3.6 ft waves: calm for swimming. Moderate rip current risk. Always follow the lifeguard's flags.
- Water 82 °F
Warm: very pleasant.
- Sun & sunscreen UV 7 · SPF 50
Max UV 7 (high): SPF 50 sunscreen, reapplied every 2 hours.
- Wind 8 mph
Cross-shore breeze (8 mph).
- Tide & sand 3:32 pm
Low tide at 3:35 am and 3:32 pm: that's when there's the most sand. High tide at 10:31 am and 9:19 pm.
The best window, 1:00 pm to 6:00 pm, brings beach weather, little wind, water at 82 °F and low tide at 3:32 pm, though with clouds. 8:00 am to 10:00 am can also work, with sunshine, pleasant temperatures, little wind and water at 81 °F, though with some waves.
We don't have data on jellyfish, sargassum or beach closures: ask the lifeguard or check with the local beach authority.
Today, hour by hour
| Time | Rating | Sky | Feels like | Wind | Waves | UV |
|---|---|---|---|---|---|---|
| 8:00 am | 6 | Clear sky | 78 °F | 7 mph | 4.1 ft | 1 |
| 9:00 am | 6 | Clear sky | 79 °F | 7 mph | 4.0 ft | 2 |
| 10:00 am | 5 | Mainly clear | 80 °F | 6 mph | 3.9 ft | 4 |
| 11:00 am | 5 | Partly cloudy | 81 °F | 6 mph | 3.8 ft | 5 |
| 12:00 pm | 7 | Overcast | 82 °F | 6 mph | 3.7 ft | 7 |
| 1:00 pm | 7 | Overcast | 82 °F | 6 mph | 3.6 ft | 7 |
| 2:00 pm | 7 | Overcast | 81 °F | 7 mph | 3.5 ft | 6 |
| 3:00 pm | 7 | Overcast | 81 °F | 7 mph | 3.4 ft | 4 |
| 4:00 pm | 7 | Partly cloudy | 80 °F | 8 mph | 3.3 ft | 2 |
| 5:00 pm | 8 | Mainly clear | 80 °F | 8 mph | 3.2 ft | 0 |
Beach hours only: from one hour after sunrise to half an hour before sunset.
Beaches near Shirahama
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Ida Beach 2.2 mi · SW
- Tudumari Beach 4.6 mi · N
- Hoshisuna Beach 5.5 mi · N
- 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 Shirahama
Webcams provided by windy.com — add a webcam
How we rate a beach day
We rate every beach hour from 0 to 10 with simple, fixed rules:
- Adds: sunshine (up to 3 points, fewer with more clouds), warmth (up to 4, from the feels-like temperature; ideal between 81 °F and 91 °F), a calm sea (1), water at 70 °F or warmer (1; from 64 °F, half) and low or mid tide (1: more sand). Anything without data is left out and the rest is scaled to 10.
- Takes away: cold (feels-like below 64 °F, 1 to 4 points), rain (half a point if likely, up to 6 if it rains; thunderstorms, 8), wind from force 4, about 12 mph (1 to 6 points; half a point more if offshore, which blows inflatables out to sea, or onshore, which churns the water), waves (1 to swim with care, 4 if dangerous, 1 more for high rip current risk), very high UV (half a point; extreme, 1), water below 59 °F (1) and spring high tides (1: little sand left).
- Swimming: calm, use care (waves from 2.6 ft, or long swell) or dangerous (from 6.6 ft, or 4.9 ft with a long period), based on how much of the wave reaches this shore given the way it faces. In the U.S., today's and tomorrow's rip current risk comes from the National Weather Service surf zone forecast when it issues one; otherwise we estimate it from the waves.
- Best windows: runs of 2 to 5 hours rated 4 or more and close to the best hour, at least one hour apart.
- Day rating: the average of the best window; a 2-hour window keeps 85% of it and a 3-hour window 95%.
Today, in the best window: sun 0.6 of 3, warmth 3.6 of 4, calm sea 1 of 1, water 1 of 1 and tide 1 of 1.
It's a guide, not a guarantee: weather changes and every beach is different. Always follow the lifeguard's flags.
Questions about the beach in Shirahama
Is it a beach day in Shirahama today?
A good beach day: 7/10. Best from 1:00 pm to 6:00 pm, with beach weather, little wind, water at 82 °F and low tide at 3:32 pm, though with clouds.
What are the swimming conditions in Shirahama today?
3.6 ft waves: calm for swimming. Moderate rip current risk. Always follow the lifeguard's flags.
How warm is the water in Shirahama?
About 82 °F today: warm. That's the sea surface temperature offshore; it can differ a little at the shoreline.
How much sun protection do I need in Shirahama today?
UV reaches 7 (high): SPF 50 sunscreen, sunglasses and a hat.
When is low tide in Shirahama?
Today low tide is at 3:35 am and 3:32 pm: that's when there's the most sand. High tide is at 10:31 am and 9:19 pm.
What about tomorrow? Will it be a beach day in Shirahama?
Tomorrow, Friday, October 30: a good beach day (8/10), best from 8:00 am to 12:00 pm.
What beaches are near Shirahama?
Ida Beach (2.2 mi), Tudumari Beach (4.6 mi) and Hoshisuna Beach (5.5 mi). See below for amenities and water quality.
Are there jellyfish or sargassum today?
We don't know: there's no open data on jellyfish, sargassum or closures for each beach. Ask the lifeguard, check the flags or the local beach authority's website.
How is the rating worked out?
From the hourly forecast: sun and clouds, feels-like temperature, rain, wind (and whether it blows onshore or offshore), waves and their period, UV, water temperature and, where there is one, the tide. Each factor adds or takes away a fixed number of points and the rating sums them up out of 10.
More about Shirahama today
Learn more
Our own calculation, using the Open-Meteo forecast (ECMWF, NOAA GFS, Météo-France, Copernicus Marine and CAMS, CC BY 4.0), the tide from Iriomotejima (JMA) and the sun from astronomy-engine. Source: Japan Meteorological Agency website (出典：気象庁ホームページ), tide table (潮位表) for Iriomotejima (西表), https://www.data.jma.go.jp/kaiyou/db/tide/suisan/suisan.php?stn=IJ. 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.