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Surf Forecasts:
Kugenuma Rivermouth surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 8 am Friday 22 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
20.6° C
(Which is normal for this time of year)How big are the waves at Kugenuma Rivermouth today?
The current surf forecast for Kugenuma Rivermouth at 5PM is: 0.5m 7s primary swell from a South direction and 0.1m 10s secondary swell from a East direction (forecast issued at 08:00am May 22). An open ocean swell of 0.9m 4s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 May) | 2.5ft (0.7m) | 8s |
| Afternoon (22 May) | 1.5ft (0.5m) | 7s |
| Evening (22 May) | 1.5ft (0.4m) | 7s |
Table - waves today at Kugenuma Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 4mm), mostly falling on Fri morning. Very mild (max 19°C on Sat afternoon, min 13°C on Fri night). Winds decreasing (strong winds from the N on Fri morning, calm by Sun night). | ||||||||||||||||||||||||
Friday 22 | Saturday 23 | Sunday 24 | Mon 25 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
S 8 | S 8 | S 7 | S 7 | S 7 | SSW 7 | SSW 8 | S 7 | SSE 6 | S 7 | S 7 | S 7 | SSE 7 | SE 11 | SE 6 | SE 6 | SE 6 | SSE 6 | SE 6 | SE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | |
57 | 55 | 40 | 28 | 28 | 18 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 54 | 60 | 62 | 25 | 91 | 113 | 40 | 42 | 44 | 35 | |
Wind (km/h) | ||||||||||||||||||||||||
off | cross-off | off | off | off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | off | off | cross | cross | cross-on | cross-on | glassy | glassy | glassy | |
High Tide | 7:02AM1.25m | 10:08PM1.20m | 8:08AM1.12m | 11:10PM1.20m | 9:51AM1.01m | 00:07AM1.22m | ||||||||||||||||||
Low Tide | 2:32PM0.24m | 3:35AM0.98m | 3:36PM0.39m | 5:44AM0.87m | 4:56PM0.52m | |||||||||||||||||||
 | | |  | |  | | | | |  | | | | | | | | |  | |  | | | |
 | 4:33 | — | — | — | — | — | — | 4:33 | — | — | — | — | — | — | — | 4:31 | — | — | — | — | — | — | — | 4:31 |
 | — | — | — | — | 6:44 | — | — | — | — | — | — | — | 6:44 | — | — | — | — | — | — | — | 6:45 | — | — | 6:45 |
1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | |
Temp °C | 16 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 14 | 17 | 19 | 19 | 17 | 16 | 17 | 17 | 18 | 19 | 19 | 19 | 19 | 19 | 19 |
12 | 9 | 8 | 6 | 7 | 7 | 7 | 7 | 7 | 8 | 13 | 15 | 16 | 14 | 14 | 15 | 17 | 18 | 18 | 18 | 18 | 20 | 20 | 21 | |
Swell 1 Height (m) Direction Period (s) | S 8 | S 8 | S 7 | S 7 | S 7 | SSW 7 | SSW 8 | S 7 | SSE 6 | S 7 | S 7 | S 7 | SSE 7 | SE 7 | SE 6 | SE 6 | SE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 7 | SSE 7 | SSE 7 | SSE 7 |
 kJ | 57 | 55 | 40 | 28 | 28 | 18 | 6 | 4 | 4 | 4 | 4 | 4 | 5 | 2 | 14 | 18 | 18 | 25 | 26 | 27 | 40 | 42 | 44 | 35 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 9 | SE 10 | SE 11 | E 10 | E 11 | SSE 7 | SSE 7 | SW 7 | SE 11 | SE 11 | SE 11 | SE 11 | S 7 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 11 | E 11 | E 11 | E 11 |
| kJ | 4 | 3 | 4 | 4 | 2 | 2 | 5 | 5 | 2 | 5 | 5 | 5 | 5 | 1 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | E 11 | E 11 | E 7 | ESE 10 | E 11 | E 9 | E 11 | SE 11 | SE 11 | E 6 | E 6 | SE 6 | S 7 | SE 11 | S 6 | SE 10 | SE 12 | ESE 10 | — | SW 6 | E 10 | — | — | — |
| kJ | 3 | 2 | 1 | 18 | 2 | 2 | 2 | 5 | 5 | 1 | 1 | 1 | 1 | 5 | 1 | 4 | 6 | 10 | — | 2 | 8 | — | — | — |
Wind waves Height (m) Direction Period (s) | NE 3 | NNE 3 | N 3 | NNE 4 | NNE 4 | NNE 4 | NNE 4 | NNE 4 | NNE 4 | NNE 4 | NE 3 | ENE 3 | — | ESE 3 | SE 6 | SE 6 | SE 6 | — | SE 6 | SE 7 | — | — | — | — |
| kJ | 5 | 8 | 11 | 20 | 23 | 18 | 16 | 11 | 10 | 8 | 3 | 1 | — | 2 | 54 | 60 | 62 | — | 91 | 113 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 480 | 69 | 140 | 499 | 140 | 140 | 480 | 545 | 792 | 879 | 45 | 545 | 545 | 879 | 0 | 0 | 0 | 64 | 18 | 64 | 30 | 30 | 30 | 24 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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