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Surf Forecasts:
Kugenuma Rivermouth surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 8 am Monday 25 May 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
20.2° C
(Which is 1.1°C colder than average for this time of year)How big are the waves at Kugenuma Rivermouth today?
The current surf forecast for Kugenuma Rivermouth at 5PM is: 0.6m 7s primary swell from a South-southeast direction and 0.2m 9s secondary swell from a South-southwest direction (forecast issued at 08:00am May 25). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 May) | 2ft (0.6m) | 7s |
| Afternoon (25 May) | 2ft (0.6m) | 7s |
| Evening (25 May) | 2ft (0.6m) | 7s |
Table - waves today at Kugenuma Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 23°C on Mon afternoon, min 19°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 25 | Tuesday 26 | Wednesday 27 | Thu 28 | |||||||||||||||||||||
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 7 | SE 7 | SE 7 | SSE 7 | SSE 7 | SSE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SE 6 | SE 6 | SE 7 | SE 7 | SE 7 | SE 7 | SSE 7 | |
56 | 44 | 43 | 37 | 37 | 37 | 28 | 20 | 20 | 20 | 15 | 20 | 15 | 20 | 20 | 14 | 8 | 9 | 9 | 11 | 17 | 23 | 22 | 17 | |
Wind (km/h) | ||||||||||||||||||||||||
off | cross-off | cross | cross-on | on | cross-on | glassy | glassy | cross-off | glassy | glassy | cross-on | cross-on | cross | glassy | off | off | cross-off | cross | cross-on | cross-on | cross-on | on | on | |
High Tide | 12:06PM0.97m | 00:53AM1.24m | 1:58PM1.04m | 1:31AM1.27m | 3:11PM1.13m | 2:02AM1.31m | ||||||||||||||||||
Low Tide | 7:02AM0.72m | 6:19PM0.63m | 7:53AM0.55m | 7:28PM0.71m | 8:34AM0.39m | 8:22PM0.79m | ||||||||||||||||||
 | |  | | |  | |  | | | | |  | |  | | | | | | | | | | |
 | 4:31 | — | — | — | — | — | — | 4:31 | — | — | — | — | — | — | — | 4:31 | — | — | — | — | — | — | — | 4:30 |
 | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:46 | — | — | 6:47 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 18 | 20 | 22 | 23 | 22 | 20 | 20 | 19 | 19 | 21 | 23 | 23 | 23 | 21 | 21 | 20 | 20 | 22 | 23 | 23 | 23 | 22 | 22 | 22 |
17 | 19 | 22 | 23 | 22 | 21 | 23 | 20 | 20 | 22 | 25 | 23 | 23 | 22 | 23 | 21 | 20 | 22 | 24 | 23 | 25 | 24 | 24 | 23 | |
Swell 1 Height (m) Direction Period (s) | SE 7 | SE 7 | SE 7 | SSE 7 | SSE 7 | SSE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SE 6 | SE 6 | SE 7 | SE 7 | SE 7 | SE 7 | SSE 7 |
 kJ | 56 | 44 | 43 | 37 | 37 | 37 | 28 | 20 | 20 | 20 | 15 | 20 | 15 | 20 | 20 | 14 | 8 | 9 | 9 | 11 | 17 | 23 | 22 | 17 |
Swell 2 Height (m) Direction Period (s) | E 11 | E 11 | S 9 | SSW 9 | SSW 8 | SSW 8 | SSE 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 6 | S 6 | S 6 | SE 11 | S 6 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 |
| kJ | 2 | 2 | 2 | 8 | 7 | 6 | 9 | 8 | 8 | 8 | 8 | 3 | 7 | 3 | 1 | 4 | 1 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | SE 11 | E 12 | E 12 | E 13 | E 16 | E 16 | SSW 7 | — | E 15 | S 10 | E 15 | S 10 | S 11 | S 11 | SE 11 | S 6 | SE 11 | E 14 | SE 10 | SE 10 | SE 10 | E 14 | E 13 | E 13 |
| kJ | 5 | 3 | 3 | 3 | 5 | 5 | 5 | — | 4 | 2 | 4 | 2 | 2 | 2 | 4 | 1 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSE 2 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 24 | 24 | 26 | 45 | 30 | 24 | 30 | 30 | 24 | 24 | 24 | 49 | 57 | 57 | 57 | 57 | 24 | 24 | 64 | 64 | 30 | 30 | 84 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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