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Surf Forecasts:
Kugenuma Rivermouth surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 2 am Sunday 26 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 8AM is: 0.4m 6s primary swell from a Southeast direction and 0.1m 7s secondary swell from a South direction (forecast issued at 02:00am April 26). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (26 Apr) | 1.5ft (0.4m) | 6s |
| Afternoon (26 Apr) | 1.5ft (0.4m) | 6s |
| 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 25mm), heaviest during Sun night. Warm (max 20°C on Tue afternoon, min 14°C on Sun night). Winds increasing (calm on Sun morning, fresh winds from the N by Sun night). | ||||||||||||||||||||||||
Sunday 26 | Monday 27 | Tuesday 28 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SSE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SSE 6 | SSE 6 | S 6 | S 6 | S 7 | S 7 | S 7 | S 7 | S 4 | S 5 | SSW 5 | SSW 5 | |
35 | 8 | 9 | 9 | 9 | 9 | 14 | 9 | 9 | 10 | 10 | 19 | 25 | 21 | 16 | 27 | 34 | 24 | 24 | 33 | 24 | 52 | 64 | 52 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | glassy | on | cross-on | cross | off | off | off | cross-off | off | off | off | cross-off | glassy | on | on | on | on | on | on | cross-on | |
High Tide | 1:59AM1.17m | 12:35PM0.97m | 2:26AM1.21m | 2:13PM1.06m | 2:48AM1.25m | 3:12PM1.16m | ||||||||||||||||||
Low Tide | 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 | — | — | — | — | — | — | — | 6:23 | — |
— | — | — | — | — | — | — | — | — | 2 | 12 | 8 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 15 | 14 | 14 | 15 | 17 | 17 | 17 | 17 | 16 | 15 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 16 | 17 | 18 | 19 | 20 | 19 |
13 | 12 | 12 | 13 | 16 | 14 | 15 | 16 | 15 | 12 | 9 | 9 | 10 | 13 | 13 | 14 | 15 | 14 | 13 | 13 | 14 | 14 | 16 | 16 | |
Swell 1 Height (m) Direction Period (s) | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SSE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SSE 6 | SSE 6 | S 6 | S 6 | S 7 | S 7 | S 7 | SE 7 | E 7 | E 7 | E 7 | SE 7 |
 kJ | 11 | 8 | 9 | 9 | 9 | 9 | 14 | 9 | 9 | 10 | 10 | 19 | 25 | 21 | 16 | 27 | 34 | 24 | 24 | 2 | 1 | 1 | 1 | 2 |
Swell 2 Height (m) Direction Period (s) | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | E 13 | — | E 13 | — | — | — | — | — | SE 6 | ESE 7 | ESE 6 | ESE 7 | SE 7 | E 12 | E 12 | E 12 | S 8 | — |
| kJ | 1 | 1 | 1 | 1 | 1 | 1 | 3 | — | 3 | — | — | — | — | — | 6 | 5 | 4 | 4 | 2 | 3 | 3 | 3 | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | SE 11 | S 6 | S 6 | — | S 6 | S 16 | S 16 | — | ESE 7 | — | — | — | — | S 14 | S 14 | S 14 | — | SE 11 |
| kJ | — | — | — | — | — | — | 5 | 1 | 1 | — | 1 | 5 | 5 | — | 5 | — | — | — | — | 4 | 4 | 4 | — | 5 |
Wind waves Height (m) Direction Period (s) | SE 6 | — | — | — | — | — | — | — | — | — | NNE 2 | N 3 | N 3 | N 3 | NNE 3 | NNE 3 | — | — | — | S 7 | S 4 | S 5 | SSW 5 | SSW 5 |
| kJ | 35 | — | — | — | — | — | — | — | — | — | 2 | 8 | 4 | 2 | 3 | 1 | — | — | — | 33 | 24 | 52 | 64 | 52 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 64 | 45 | 57 | 85 | 24 | 85 | 45 | 45 | 45 | 57 | 480 | 69 | 61 | 88 | 30 | 57 | 24 | 61 | 84 | 85 | 85 | 85 | 795 | 2057 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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