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Surf Forecasts:
Osaki surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 2 am Wednesday 29 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
19.4° C
(Which is slightly warmer than usual)How big are the waves at Osaki today?
The current surf forecast for Osaki at 10AM is: 0.7m 6s primary swell from a South direction and 0.1m 13s secondary swell from a South direction (forecast issued at 02:00am April 29). An open ocean swell of 0.2m 2s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Apr) | 2.5ft (0.8m) | 6s |
| Afternoon (29 Apr) | 2ft (0.6m) | 6s |
| Evening (29 Apr) | 1.5ft (0.4m) | 6s |
Table - waves today at Osaki. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 47mm), heaviest during Thu night. Very mild (max 18°C on Wed morning, min 12°C on Thu night). Winds decreasing (strong winds from the N on Fri morning, calm by Fri night). | ||||||||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 1 | ||||||||||||||||||||||
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 | S 6 | S 6 | S 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SE 5 | SE 7 | SE 6 | SE 6 | SE 7 | SE 6 | SE 7 | SE 8 | SSE 8 | SSE 8 | SSE 9 | S 8 | |
107 | 134 | 60 | 51 | 28 | 28 | 19 | 12 | 12 | 6 | 3 | 3 | 4 | 9 | 6 | 9 | 22 | 141 | 267 | 844 | 321 | 313 | 858 | 489 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | off | off | off | off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | cross-off | glassy | cross-on | on | |
High Tide | 2:59AM1.25m | 3:25PM1.22m | 3:26AM1.28m | 4:17PM1.30m | 3:52AM1.32m | 5:05PM1.35m | ||||||||||||||||||
Low Tide | 9:15AM0.46m | 9:24PM0.50m | 9:51AM0.30m | 10:05PM0.56m | 10:27AM0.16m | |||||||||||||||||||
 | |  | | | |  |  | | | |  | | | | | |  |  | | | | |  | |
 | — | 4:52 | — | — | — | — | — | — | — | 4:52 | — | — | — | — | — | — | — | 4:50 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:24 | — | — | — | — | — | — | — | 6:25 | — | — | — | — | — | — | — | 6:25 | — |
— | — | — | — | — | — | — | 2 | 4 | 1 | — | 1 | — | — | — | 2 | 4 | 6 | 12 | 12 | 1 | — | — | — | |
Temp °C | 20 | 19 | 18 | 17 | 18 | 18 | 16 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 13 | 12 | 13 | 12 | 13 | 15 | 16 | 16 | 17 |
16 | 18 | 16 | 14 | 16 | 15 | 13 | 10 | 8 | 9 | 9 | 10 | 10 | 10 | 11 | 10 | 8 | 8 | 6 | 6 | 12 | 16 | 14 | 10 | |
Swell 1 Height (m) Direction Period (s) | — | SSW 6 | SSW 6 | SSW 6 | S 6 | S 6 | S 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SE 5 | SE 7 | SE 6 | SE 6 | S 5 | SE 6 | SSE 6 | SE 8 | SSE 8 | SSE 8 | SSE 9 | SE 9 |
 kJ | — | 83 | 60 | 51 | 28 | 28 | 19 | 12 | 12 | 6 | 3 | 3 | 4 | 9 | 6 | 9 | 1 | 47 | 60 | 242 | 321 | 313 | 404 | 287 |
Swell 2 Height (m) Direction Period (s) | SE 11 | — | S 13 | S 13 | E 11 | E 11 | — | E 11 | ESE 4 | S 8 | SE 4 | SE 5 | SE 8 | S 6 | SE 8 | S 5 | — | — | — | — | — | — | — | ESE 9 |
| kJ | 5 | — | 3 | 3 | 2 | 2 | — | 2 | 3 | 1 | 1 | 1 | 2 | 1 | 2 | 1 | — | — | — | — | — | — | — | 135 |
Swell 3 Height (m) Direction Period (s) | S 14 | — | SE 11 | — | — | — | S 13 | — | — | E 7 | SE 8 | SE 8 | SW 6 | SW 6 | S 5 | E 9 | — | — | — | — | — | — | — | — |
| kJ | 4 | — | 5 | — | — | — | 3 | — | — | 1 | 3 | 2 | 1 | 1 | 1 | 2 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 6 | SSW 6 | — | — | NNE 2 | — | E 2 | ESE 3 | NE 2 | ENE 3 | NE 3 | ENE 3 | ENE 2 | — | — | — | SE 7 | SE 6 | SE 7 | SE 8 | NW 2 | — | SSE 9 | S 8 |
| kJ | 107 | 134 | — | — | 1 | — | 1 | 3 | 1 | 3 | 2 | 1 | 1 | — | — | — | 22 | 141 | 267 | 844 | 1 | — | 858 | 489 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 229 | 13 | 0 | 0 | 15 | 50 | 895 | 136 | 1031 | 1031 | 1031 | 1031 | 37 | 50 | 470 | 566 | 38 | 64 | 470 | 37 | 2 | 0 | 487 | 487 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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