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Surf Forecasts:
Osaki surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 2 am Thursday 30 Apr 2026 JSTForecast update in hr min s Forecast update imminent
Osaki surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Osaki sea temperature is
20.0° C
(Which is slightly warmer than usual)How big are the waves at Osaki today?
The current surf forecast for Osaki at 6AM is: 0.3m 6s primary swell from a South-southwest direction and 0.2m 4s secondary swell from a East-southeast direction (forecast issued at 02:00am April 30). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Apr) | 0.5ft (0.2m) | 6s |
| Afternoon (30 Apr) | 1ft (0.3m) | 8s |
| Evening (30 Apr) | 1.5ft (0.4m) | 7s |
Table - waves today at Osaki. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 36mm), heaviest during Thu night. Very mild (max 19°C on Sat afternoon, min 11°C on Thu night). Mainly strong winds. | ||||||||||||||||||||||||
Thursday 30 | Friday 1 | Saturday 2 | ||||||||||||||||||||||
12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SSW 6 | SSW 6 | SSW 6 | SSW 6 | SE 8 | SE 8 | ESE 6 | SE 7 | SE 6 | SSE 6 | SSE 7 | SSE 8 | SSE 8 | SSE 8 | SSE 9 | SSW 8 | SSW 8 | SSW 9 | SSW 10 | SSW 10 | SSW 10 | SW 10 | SW 10 | SW 9 | |
12 | 6 | 6 | 3 | 2 | 9 | 20 | 13 | 16 | 52 | 93 | 171 | 237 | 333 | 465 | 733 | 569 | 426 | 331 | 194 | 116 | 29 | 23 | 12 | |
Wind (km/h) | ||||||||||||||||||||||||
off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-on | on | cross-on | cross-on | cross | glassy | on | cross-on | cross-on | on | on | |
High Tide | 3:26AM1.28m | 4:17PM1.30m | 3:52AM1.32m | 5:05PM1.35m | 4:18AM1.35m | 5:51PM1.38m | ||||||||||||||||||
Low Tide | 9:24PM0.50m | 9:51AM0.30m | 10:05PM0.56m | 10:27AM0.16m | 10:43PM0.63m | 11:03AM0.04m | ||||||||||||||||||
 | |  | | |  | | | |  |  |  | | |  |  |  |  |  | | | | | | |
 | — | 4:52 | — | — | — | — | — | — | — | 4:50 | — | — | — | — | — | — | — | 4:50 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:25 | — | — | — | — | — | — | — | 6:25 | — | — | — | — | — | — | — | 6:27 | — |
2 | 1 | 1 | 1 | 1 | — | — | 1 | 4 | 7 | 11 | 10 | 1 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 14 | 14 | 13 | 13 | 13 | 13 | 14 | 14 | 11 | 11 | 12 | 13 | 15 | 16 | 17 | 17 | 16 | 15 | 15 | 17 | 18 | 19 | 19 | 19 |
10 | 9 | 8 | 10 | 9 | 10 | 11 | 10 | 4 | 5 | 6 | 6 | 13 | 16 | 14 | 7 | 13 | 13 | 15 | 14 | 14 | 17 | 18 | 18 | |
Swell 1 Height (m) Direction Period (s) | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SE 8 | SE 8 | SE 6 | SE 7 | SE 6 | SSE 6 | SSE 7 | SSE 8 | SSE 8 | SSE 8 | SSE 9 | SE 9 | SE 9 | SSW 9 | SSW 10 | SSW 10 | SSW 10 | S 8 | S 7 | S 7 |
 kJ | 12 | 6 | 6 | 3 | 2 | 9 | 5 | 13 | 16 | 52 | 93 | 171 | 237 | 333 | 465 | 120 | 65 | 426 | 331 | 194 | 116 | 29 | 17 | 9 |
Swell 2 Height (m) Direction Period (s) | — | SE 8 | ESE 4 | SE 5 | S 6 | S 5 | SE 9 | S 5 | — | — | — | — | NNW 3 | — | — | — | SSE 9 | SE 10 | SE 10 | SE 11 | SE 8 | SW 10 | SW 10 | SW 9 |
| kJ | — | 3 | 1 | 1 | 1 | 1 | 3 | 1 | — | — | — | — | 2 | — | — | — | 32 | 44 | 4 | 4 | 9 | 24 | 23 | 12 |
Swell 3 Height (m) Direction Period (s) | — | E 7 | SE 8 | SE 8 | E 7 | SW 6 | S 5 | SW 6 | — | — | — | — | — | — | — | — | — | — | — | E 9 | SE 10 | SE 10 | E 9 | ESE 9 |
| kJ | — | 1 | 3 | 2 | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | 7 | 4 | 4 | 2 | 8 |
Wind waves Height (m) Direction Period (s) | ENE 3 | ENE 3 | ENE 3 | ENE 3 | ESE 5 | NE 3 | ESE 6 | — | — | — | NNE 2 | N 3 | — | SSW 8 | S 8 | SSW 8 | SSW 8 | — | — | — | — | — | — | — |
| kJ | 1 | 3 | 3 | 2 | 5 | 1 | 20 | — | — | — | 1 | 5 | — | 175 | 448 | 733 | 569 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 2338 | 1031 | 229 | 522 | 50 | 799 | 886 | 879 | 566 | 37 | 487 | 18 | 0 | 136 | 487 | 487 | 15 | 2 | 0 | 15 | 64 | 64 | 64 | 37 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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