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Surf Forecasts:
Kugenuma Rivermouth surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 8 pm Saturday 25 Apr 2026 JSTForecast update in hr min s Forecast update imminent
Kugenuma Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kugenuma Rivermouth sea temperature is
19.3° C
(Which is slightly warmer than usual)How big are the waves at Kugenuma Rivermouth today?
The current surf forecast for Kugenuma Rivermouth at 12AM is: 0.7m 6s primary swell from a Southeast direction and 0.4m 6s secondary swell from a Southeast direction, 0.1m 7s secondary swell from a South direction (forecast issued at 08:00pm April 25). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (26 Apr) | - | - |
| Afternoon (26 Apr) | - | - |
| Evening (26 Apr) | 1.5ft (0.4m) | 6s |
Table - waves today at Kugenuma Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 36mm), heaviest during Sun night. Very mild (max 19°C on Tue afternoon, min 14°C on Sat night). Winds increasing (calm on Sun morning, strong winds from the N by Sun night). | ||||||||||||||||||||||||
Sat 25 | Sunday 26 | Monday 27 | Tuesday 28 | |||||||||||||||||||||
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 | 6 AM | 9 AM | 12 PM | 3 PM | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
ESE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SSE 6 | SSE 6 | SE 6 | SSE 6 | SE 6 | SSE 6 | SSE 6 | S 6 | S 6 | SSW 6 | SSW 6 | SSW 6 | S 6 | S 6 | S 3 | S 4 | |
12 | 8 | 35 | 8 | 9 | 9 | 9 | 9 | 14 | 14 | 18 | 15 | 19 | 26 | 29 | 18 | 18 | 12 | 13 | 13 | 12 | 12 | 7 | 19 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross-off | cross-off | cross-off | cross-off | glassy | on | cross-on | cross | off | off | cross-off | cross-off | off | off | cross-off | glassy | glassy | on | on | on | on | on | |
High Tide | 1:59AM1.17m | 12:35PM0.97m | 2:26AM1.21m | 2:13PM1.06m | 2:48AM1.25m | |||||||||||||||||||
Low Tide | 6:12PM0.42m | 8:06AM0.80m | 7:29PM0.45m | 8:41AM0.64m | 8:25PM0.48m | 9:10AM0.48m | ||||||||||||||||||
 |  | |  | |  | | | |  | |  |  | |  | |  |  | | | | | | | |
 | — | — | — | 4:56 | — | — | — | — | — | — | — | 4:56 | — | — | — | — | — | — | — | 4:54 | — | — | — | — |
 | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | 6:23 |
— | — | — | — | — | — | — | — | — | — | — | 3 | 18 | 13 | — | — | 1 | 1 | — | — | — | — | — | — | |
Temp °C | 16 | 15 | 14 | 14 | 14 | 15 | 16 | 17 | 17 | 17 | 16 | 15 | 14 | 14 | 16 | 16 | 14 | 14 | 14 | 15 | 15 | 17 | 18 | 19 |
11 | 11 | 11 | 12 | 12 | 13 | 15 | 15 | 15 | 16 | 14 | 12 | 7 | 9 | 12 | 13 | 12 | 14 | 14 | 14 | 13 | 13 | 13 | 14 | |
Swell 1 Height (m) Direction Period (s) | S 7 | S 7 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SSE 6 | SSE 6 | SE 6 | SSE 6 | SE 6 | SSE 6 | SSE 6 | S 6 | S 6 | SSW 6 | SSW 6 | SSW 6 | S 6 | SE 7 | SE 7 | E 7 |
 kJ | 4 | 4 | 11 | 8 | 9 | 9 | 9 | 9 | 14 | 14 | 18 | 15 | 19 | 26 | 29 | 18 | 18 | 12 | 13 | 13 | 12 | 2 | 2 | 1 |
Swell 2 Height (m) Direction Period (s) | E 11 | — | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | E 13 | S 6 | — | — | — | — | — | SE 7 | SE 7 | SE 7 | SE 7 | ESE 7 | SSW 7 | SW 7 | — | E 12 |
| kJ | 2 | — | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 1 | — | — | — | — | — | 12 | 7 | 7 | 7 | 4 | 5 | 2 | — | 3 |
Swell 3 Height (m) Direction Period (s) | SE 11 | SE 11 | — | — | — | — | — | — | SE 11 | — | — | — | S 16 | S 16 | SE 12 | — | — | — | — | — | ESE 7 | E 12 | S 14 | S 14 |
| kJ | 5 | 5 | — | — | — | — | — | — | 5 | — | — | — | 5 | 5 | 6 | — | — | — | — | — | 5 | 3 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | ESE 6 | SE 6 | SE 6 | — | — | — | — | — | — | — | — | NE 2 | N 3 | N 3 | N 3 | NNE 3 | NNE 3 | NNE 3 | — | — | — | S 6 | S 3 | S 4 |
| kJ | 12 | 8 | 35 | — | — | — | — | — | — | — | — | 1 | 4 | 8 | 5 | 3 | 2 | 1 | — | — | — | 12 | 7 | 19 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 748 | 545 | 64 | 45 | 45 | 85 | 24 | 45 | 30 | 45 | 45 | 57 | 140 | 30 | 30 | 57 | 57 | 57 | 24 | 26 | 63 | 84 | 85 | 85 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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