
Surf Forecasts:
Osaki surf forecast from 11 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 12PM (local time) - 1.5ft (0.5m), 10s period, SSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 11 Aug, 9PM (local time) - 3.5ft (1.1m), 10s period, SSW swell with 255 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 12PM (local time) - 1.5ft (0.5m), 10s period with SSW swell.
Best Forecast Surf Conditions for Osaki this week:
The surf forecast for Osaki over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 12) at 12PM. The primary swell is predicted to be 0.5m and 10s period with a secondary swell of 0.3m and 5s. Another secondary swell of 0.5m and 5s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Osaki in the next 16 days are 1.1m 10s and forecast to arrive on Tuesday (Aug 11) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 2s period and expected on Friday (Aug 14) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Wed 12th Aug) | 1.5ft (0.5m) 10s |
| Best Surf | 12PM (Wed 12th Aug) | 1.5ft (0.5m) 10s |
| Most Powerful | 9PM (Tue 11th Aug) | 3.5ft (1.1m) 10s |
Table - best surf conditions forecast for Osaki over the next 16 days.
Short Range ForecastHeavy rain (total 57mm), heaviest during Tue night. Warm (max 28°C on Thu afternoon, min 23°C on Tue night). Winds increasing (light winds from the WNW on Tue morning, fresh winds from the S by Tue night). | Days 4-6 Weather SummaryHeavy rain (total 26mm), heaviest during Fri night. Warm (max 29°C on Fri afternoon, min 24°C on Sat night). Winds decreasing (fresh winds from the NE on Sat afternoon, light winds from the ENE by Sun morning). | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SSW 10 | SSW 11 | SSW 6 | SSW 10 | SE 6 | SSW 10 | S 10 | S 10 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 11 | SSW 10 | SSW 10 | SSW 11 | SSW 10 | SSW 9 | SSW 9 | SSE 11 | SSW 8 |
Wave Graph | |||||||||||||||||||||
62 | 64 | 97 | 58 | 59 | 39 | 50 | 47 | 30 | 28 | 28 | 27 | 23 | 35 | 31 | 38 | 33 | 29 | 16 | 11 | 14 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-on | cross | off | off | off | cross-off | off | off | cross-off | off | off | off | off | off | on | on | glassy | cross-on | glassy |
High Tide | 5:17PM1.41m | 3:09AM1.45m | 5:43PM1.45m | 4:05AM1.50m | 6:08PM1.47m | 4:55AM1.54m | 6:31PM1.48m | 5:41AM1.56m | 6:55PM1.48m | 6:26AM1.55m | 7:18PM1.48m | 7:12AM1.50m | 7:41PM1.48m | ||||||||
Low Tide | 9:46AM0.18m | 10:08PM1.08m | 10:31AM0.14m | 10:48PM0.99m | 11:12AM0.14m | 11:25PM0.88m | 11:48AM0.17m | 00:00AM0.78m | 12:23PM0.24m | 00:35AM0.68m | 12:57PM0.34m | 1:12AM0.59m | 1:28PM0.46m | 1:51AM0.52m | |||||||
4:56 | — | — | 4:58 | — | — | 4:58 | — | — | 4:58 | — | — | 5:00 | — | — | 5:01 | — | — | 5:01 | — | — | |
— | 6:36 | — | — | 6:35 | — | — | 6:34 | — | — | 6:31 | — | — | 6:30 | — | — | 6:30 | — | — | 6:29 | — | |
mm | — | 2 | 28 | 12 | 6 | 1 | — | 1 | 7 | — | 4 | 20 | 2 | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 25 | 25 | 26 | 25 | 27 | 28 | 26 | 28 | 29 | 26 | 28 | 29 | 25 | 27 | 28 | 26 | 27 | 27 | 27 |
Feels °C | 27 | 25 | 24 | 26 | 26 | 25 | 28 | 30 | 28 | 29 | 30 | 27 | 27 | 27 | 23 | 27 | 28 | 25 | 28 | 28 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 10 | SSW 11 | SSW 10 | S 5 | SE 6 | S 6 | S 10 | S 10 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SE 8 | SSW 10 | SSW 10 | SSW 11 | SSW 10 | SSW 9 | SSW 9 | SSE 11 | SSW 8 |
62 | 64 | 58 | 17 | 15 | 16 | 50 | 47 | 28 | 28 | 28 | 27 | 17 | 35 | 31 | 38 | 33 | 29 | 16 | 11 | 14 | |
Swell 2 Height (m) Direction Period (s) | E 11 | E 11 | SE 13 | SSW 10 | SSW 10 | SSW 10 | SE 11 | E 10 | SSE 12 | SSE 11 | SSE 10 | SSE 9 | SSW 11 | ESE 9 | SE 10 | ESE 11 | ESE 11 | SSE 11 | SSE 11 | — | SSE 10 |
2 | 2 | 6 | 58 | 59 | 39 | 5 | 2 | 30 | 12 | 19 | 16 | 23 | 7 | 28 | 23 | 22 | 12 | 11 | — | 10 | |
Swell 3 Height (m) Direction Period (s) | SE 12 | SE 13 | E 11 | SE 10 | S 5 | SE 12 | — | SE 12 | E 9 | SE 10 | E 10 | E 10 | SSW 8 | SE 12 | SE 10 | SSE 12 | SSE 11 | SE 6 | S 8 | SSE 8 | SE 7 |
6 | 6 | 2 | 4 | 5 | 5 | — | 5 | 6 | 4 | 2 | 2 | 7 | 6 | 4 | 13 | 13 | 2 | 1 | 6 | 2 | |
Wind waves Height (m) Direction Period (s) | — | SW 3 | SSW 6 | SE 5 | SE 6 | — | NNE 2 | — | — | NE 2 | ENE 2 | E 3 | NE 3 | ESE 8 | ENE 3 | NE 3 | — | — | SSW 2 | S 3 | SSW 4 |
— | 6 | 97 | 27 | 44 | — | 1 | — | — | 2 | 1 | 1 | 2 | 24 | 3 | 3 | — | — | 1 | 11 | 10 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 136 | 92 | 470 | 0 | 0 | 0 | 0 | 0 | 37 | 15 | 37 | 146 | 37 | 9 | 0 | 15 | 38 | 17 | 17 | 15 |
Best forecast wave conditions in Kanagawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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Information about the Osaki Surf forecast
The above surf forecast table for Osaki provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Osaki can be found by selecting the local surf guide option on the grey menu. Our Osaki surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Osaki) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Osaki may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Osaki is 2 km (1 miles) from the city of Zushi. If you plan a holiday in Kanagawa, look for hotels and other accommodation in Zushi. Zushi has rooms for a wide range of budgets as well as car hire and transport links.











