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Surf Forecasts:
Kugenuma Rivermouth surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 2 am Friday 08 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
20.1° 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 11AM is: 1.0m 6s primary swell from a South direction and 0.2m 11s secondary swell from a East-southeast direction, 0.3m 11s secondary swell from a Southeast direction (forecast issued at 02:00am May 08). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (08 May) | 3.5ft (1.0m) | 6s |
| Afternoon (08 May) | 4.5ft (1.4m) | 5s |
| Evening (08 May) | 5.5ft (1.7m) | 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 22°C on Fri morning, min 16°C on Sat night). Winds decreasing (strong winds from the SW on Fri afternoon, calm by Sat night). | ||||||||||||||||||||||||
Friday 8 | Saturday 9 | Sunday 10 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
S 6 | S 6 | S 6 | S 6 | S 6 | SSW 5 | SSW 6 | SSW 7 | S 7 | SW 7 | SSW 7 | SSW 7 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 9 | SSE 6 | SSE 6 | |
61 | 95 | 78 | 74 | 76 | 117 | 198 | 268 | 218 | 321 | 117 | 52 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 16 | 16 | 14 | 18 | 18 | |
Wind (km/h) | ||||||||||||||||||||||||
on | cross-on | cross-on | on | on | on | on | on | cross-on | off | cross-on | on | glassy | cross-on | on | glassy | off | cross-off | cross-off | cross-off | cross-on | on | on | on | |
High Tide | 9:58PM1.14m | 7:24AM1.19m | 11:23PM1.14m | 8:45AM1.05m | 00:37AM1.17m | 11:09AM0.96m | ||||||||||||||||||
Low Tide | 2:06AM1.02m | 3:20PM0.30m | 5:19AM0.99m | 4:48PM0.43m | 7:08AM0.84m | 6:19PM0.51m | ||||||||||||||||||
 | |  |  | |  | |  |  | | | | | | | | | | | | | | | | |
 | — | 4:43 | — | — | — | — | — | — | — | 4:43 | — | — | — | — | — | — | — | 4:41 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:32 | — | — | — | — | — | — | — | 6:32 | — | — | — | — | — | — | — | 6:34 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 20 | 19 | 19 | 21 | 22 | 22 | 22 | 21 | 20 | 19 | 18 | 18 | 19 | 20 | 19 | 19 | 18 | 17 | 16 | 18 | 19 | 18 | 18 | 18 |
19 | 18 | 19 | 20 | 19 | 17 | 17 | 14 | 15 | 16 | 16 | 14 | 17 | 18 | 16 | 18 | 15 | 14 | 13 | 16 | 16 | 13 | 14 | 14 | |
Swell 1 Height (m) Direction Period (s) | ESE 11 | S 6 | S 6 | S 6 | ESE 11 | ESE 11 | ESE 11 | SE 11 | SE 11 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SE 11 | SE 11 | SSW 6 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 9 | ESE 9 | SE 9 |
 kJ | 11 | 63 | 48 | 37 | 11 | 11 | 12 | 5 | 5 | 176 | 117 | 52 | 15 | 18 | 18 | 8 | 18 | 18 | 17 | 16 | 16 | 14 | 8 | 3 |
Swell 2 Height (m) Direction Period (s) | — | ESE 11 | ESE 11 | SE 11 | — | — | — | — | — | SE 11 | SE 11 | SE 11 | SE 11 | S 6 | SSW 5 | SE 11 | SSW 6 | S 6 | S 6 | S 6 | S 6 | SW 6 | SE 11 | SE 11 |
| kJ | — | 11 | 11 | 18 | — | — | — | — | — | 5 | 5 | 18 | 18 | 3 | 2 | 18 | 8 | 3 | 3 | 3 | 3 | 1 | 5 | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | SSE 8 | — | SW 8 | SW 8 | S 6 | S 7 | SW 8 | SW 7 | S 7 | SW 7 | W 7 | W 6 | S 6 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 12 | — | 3 | 3 | 3 | 1 | 2 | 2 | 1 | 2 | 1 | 1 | 1 | — |
Wind waves Height (m) Direction Period (s) | S 6 | S 6 | S 6 | S 6 | S 6 | SSW 5 | SSW 6 | SSW 7 | S 7 | SW 7 | — | — | — | SSW 5 | SSW 3 | — | — | — | — | — | — | SSE 3 | SSE 6 | SSE 6 |
| kJ | 61 | 95 | 78 | 74 | 76 | 117 | 198 | 268 | 218 | 321 | — | — | — | 5 | 2 | — | — | — | — | — | — | 2 | 18 | 18 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 7 | 4 | 4 | 7 | 222 | 482 | 480 | 499 | 19 | 0 | 7 | 45 | 24 | 45 | 24 | 57 | 57 | 64 | 57 | 24 | 24 | 85 | 64 | 85 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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