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Surf Forecasts:
Kugenuma Rivermouth surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 2 am Thursday 07 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 6AM is: 0.4m 6s primary swell from a South-southeast direction and 0.1m 11s secondary swell from a Southeast direction (forecast issued at 02:00am May 07). The wind direction is predicted to be glassy.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (07 May) | 1.5ft (0.4m) | 6s |
| Afternoon (07 May) | 1.5ft (0.4m) | 10s |
| Evening (07 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 22°C on Fri afternoon, min 17°C on Sat night). Winds increasing (calm on Thu morning, strong winds from the SW by Fri night). | ||||||||||||||||||||||||
Thursday 7 | Friday 8 | Saturday 9 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | ESE 10 | SE 10 | SSE 7 | S 6 | S 6 | S 6 | S 6 | S 5 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SW 7 | SW 7 | SW 7 | SSW 8 | SSW 8 | SE 11 | SE 11 | |
18 | 19 | 13 | 13 | 15 | 42 | 53 | 34 | 97 | 78 | 47 | 35 | 47 | 126 | 179 | 212 | 247 | 437 | 489 | 260 | 69 | 35 | 24 | 18 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | glassy | glassy | cross-on | on | on | on | on | on | cross-on | on | on | on | on | on | on | cross-on | cross-on | glassy | cross | cross-off | cross | off | |
High Tide | 6:37AM1.31m | 9:58PM1.14m | 7:24AM1.19m | 11:23PM1.14m | 8:45AM1.05m | |||||||||||||||||||
Low Tide | 00:58AM0.98m | 2:15PM0.17m | 2:06AM1.02m | 3:20PM0.30m | 5:19AM0.99m | 4:48PM0.43m | ||||||||||||||||||
 | |  | | | | |  |  | | |  | | | | | | |  | | | | | | |
 | — | 4:45 | — | — | — | — | — | — | — | 4:43 | — | — | — | — | — | — | — | 4:43 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:32 | — | — | — | — | — | — | — | 6:32 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 18 | 18 | 17 | 19 | 20 | 20 | 21 | 20 | 19 | 19 | 19 | 21 | 21 | 22 | 21 | 21 | 20 | 18 | 18 | 18 | 19 | 21 | 20 | 19 |
18 | 18 | 18 | 20 | 20 | 19 | 19 | 18 | 18 | 18 | 19 | 21 | 18 | 17 | 16 | 14 | 13 | 13 | 15 | 16 | 15 | 19 | 18 | 14 | |
Swell 1 Height (m) Direction Period (s) | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SE 11 | SE 11 | SSE 7 | ESE 11 | ESE 11 | S 6 | SE 11 | SE 11 | ESE 11 | ESE 11 | ESE 11 | SE 11 | SSW 7 | SSW 7 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 5 |
 kJ | 18 | 19 | 13 | 13 | 15 | 4 | 4 | 34 | 11 | 11 | 47 | 18 | 18 | 11 | 12 | 12 | 5 | 240 | 208 | 128 | 69 | 35 | 24 | 6 |
Swell 2 Height (m) Direction Period (s) | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | ESE 10 | SE 10 | SE 11 | — | — | ESE 11 | — | — | — | — | — | — | SE 11 | SE 11 | ESE 11 | SE 11 | SE 11 | SE 11 | SE 11 |
| kJ | 4 | 4 | 4 | 4 | 4 | 42 | 53 | 4 | — | — | 11 | — | — | — | — | — | — | 5 | 5 | 11 | 18 | 18 | 18 | 18 |
Swell 3 Height (m) Direction Period (s) | SE 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 8 |
| kJ | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 11 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | SSE 6 | S 6 | SSW 4 | S 6 | S 6 | SSW 6 | S 6 | S 5 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SW 7 | SW 7 | SW 7 | — | — | — | — |
| kJ | — | — | — | — | — | 30 | 52 | 17 | 97 | 78 | 47 | 35 | 47 | 126 | 179 | 212 | 247 | 437 | 489 | 260 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 26 | 26 | 26 | 24 | 24 | 84 | 19 | 30 | 7 | 7 | 7 | 137 | 512 | 463 | 480 | 480 | 480 | 7 | 4 | 0 | 26 | 7 | 24 | 45 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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