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Surf Forecasts:
Shonan surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 8 am Tuesday 19 May 2026 JSTForecast update in hr min s Forecast update imminent
Shonan surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Shonan sea temperature is
19.8° C
(Which is slightly cooler than normal)How big are the waves at Shonan today?
The current surf forecast for Shonan at 1PM is: 0.8m 4s primary swell from a South direction and 0.3m 11s secondary swell from a Southeast direction, 0.3m 9s secondary swell from a East-southeast direction (forecast issued at 08:00am May 19). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | 1.5ft (0.4m) | 10s |
| Afternoon (19 May) | 3.5ft (1.0m) | 4s |
| Evening (19 May) | 1.5ft (0.4m) | 11s |
Table - waves today at Shonan. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 33mm), heaviest during Thu afternoon. Warm (max 25°C on Wed morning, min 15°C on Thu night). Winds decreasing (fresh winds from the S on Tue afternoon, calm by Wed night). | ||||||||||||||||||||||||
Tuesday 19 | Wednesday 20 | Thursday 21 | Fri 22 | |||||||||||||||||||||
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 | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SE 10 | SE 10 | SE 11 | S 4 | S 4 | SE 11 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SSW 4 | SE 10 | SE 10 | SE 9 | SE 9 | S 6 | S 6 | S 7 | S 7 | S 8 | S 8 | S 8 | |
16 | 29 | 18 | 37 | 41 | 29 | 29 | 29 | 40 | 38 | 27 | 26 | 31 | 19 | 14 | 14 | 14 | 25 | 38 | 56 | 63 | 90 | 72 | 55 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 4:55AM1.57m | 7:42PM1.43m | 5:34AM1.54m | 8:39PM1.36m | 6:17AM1.47m | 9:39PM1.30m | ||||||||||||||||||
Low Tide | 12:19PM-0.09m | 00:22AM1.06m | 1:08PM-0.01m | 1:08AM1.09m | 1:59PM0.12m | 2:09AM1.08m | ||||||||||||||||||
 | | | | |  | |  |  | | | |  |  |  | |  | | |  | | | | | |
 | 4:35 | — | — | — | — | — | — | 4:35 | — | — | — | — | — | — | — | 4:33 | — | — | — | — | — | — | — | 4:33 |
 | — | — | — | — | 6:40 | — | — | — | — | — | — | — | 6:42 | — | — | — | — | — | — | — | 6:43 | — | — | 6:44 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 2 | 3 | 3 | 3 | 9 | 3 | 3 | 1 | 2 | |
Temp °C | 19 | 22 | 23 | 24 | 23 | 21 | 20 | 20 | 20 | 22 | 25 | 25 | 24 | 22 | 21 | 20 | 20 | 17 | 18 | 18 | 17 | 16 | 15 | 15 |
18 | 21 | 20 | 20 | 20 | 20 | 19 | 19 | 20 | 21 | 24 | 23 | 23 | 22 | 22 | 22 | 22 | 15 | 16 | 16 | 14 | 13 | 11 | 11 | |
Swell 1 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | S 4 | S 4 | S 6 | S 6 | S 7 | S 7 | S 8 | S 8 | S 8 |
 kJ | 16 | 28 | 18 | 18 | 18 | 29 | 29 | 29 | 40 | 38 | 27 | 26 | 15 | 15 | 14 | 5 | 3 | 25 | 38 | 56 | 63 | 90 | 72 | 55 |
Swell 2 Height (m) Direction Period (s) | SSE 7 | ESE 9 | ESE 9 | E 10 | — | — | — | — | — | — | — | — | — | — | — | SE 9 | SE 9 | SE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SE 11 | SE 9 |
| kJ | 4 | 29 | 16 | 2 | — | — | — | — | — | — | — | — | — | — | — | 14 | 14 | 13 | 9 | 10 | 10 | 10 | 4 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 6 | — | — | — | — | — | — | — | SE 11 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | 5 |
Wind waves Height (m) Direction Period (s) | SW 3 | SSW 3 | S 4 | S 4 | S 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | S 4 | S 4 | SSW 4 | SSW 4 | S 4 | — | — | — | NE 3 | NE 3 | NE 3 | NNE 3 | NE 3 | NNE 3 |
| kJ | 3 | 4 | 13 | 37 | 41 | 25 | 15 | 10 | 9 | 6 | 6 | 15 | 31 | 19 | 13 | — | — | — | 1 | 2 | 2 | 4 | 5 | 7 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 29 | 87 | 510 | 253 | 87 | 29 | 29 | 29 | 29 | 88 | 88 | 482 | 29 | 29 | 86 | 28 | 26 | 47 | 47 | 2 | 47 | 2 | 220 | 138 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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