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Surf Forecasts:
Kugenuma Rivermouth surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 8 am Saturday 06 Dec 2025 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
20.3° 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 1PM is: 0.1m 9s primary swell from a Southeast direction (forecast issued at 08:00am December 06). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (06 Dec) | 0.5ft (0.1m) | 10s |
| Afternoon (06 Dec) | 0.5ft (0.1m) | 9s |
| Evening (06 Dec) | 0.5ft (0.1m) | 17s |
Table - waves today at Kugenuma Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 06 | Sunday 07 | Monday 08 | Tue 09 | |||||||||||||||||||||
| 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 10 | 9 | 10 | 17 | 17 | 4 | 5 | 6 | 6 | 5 | 9 | 9 | 9 | 9 | 5 | 6 | 5 | 6 | 6 | 6 | 6 | 5 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 4 | 4 | 4 | 3 | 3 | 5 | 6 | 8 | 70 | 80 | 12 | 5 | 3 | 3 | 3 | 3 | 30 | 105 | 29 | 107 | 122 | 54 | 12 | 3 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | glass | cross- on | cross- on | cross- on | cross- on | cross | off | glass | cross- on | glass | glass | glass | cross | glass | cross- on | cross- on | cross- on | cross | off | off | off |
High Tide / height (m) | 6:30AM 1.37 | 4:19PM 1.53 | 7:05AM 1.37 | 4:57PM 1.52 | 7:41AM 1.36 | 5:39PM 1.47 | ||||||||||||||||||
Low Tide / height (m) | 11:00AM 1.07 | 11:47PM -0.01 | 11:35AM 1.07 | 12:23AM 0.02 | 12:16PM 1.05 | 1:01AM 0.09 | ||||||||||||||||||
Saturday 06 | Sunday 07 | Monday 08 | Tue 09 | |||||||||||||||||||||
| Sunrise | - | 6:35 | - | - | - | - | - | - | - | 6:35 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - |
| Sunset | - | - | - | 4:29 | - | - | - | - | - | - | - | 4:29 | - | - | - | - | - | - | - | 4:29 | - | - | - | - |
 |  |  |  | | | | | | | | | | | | | | | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 8 | 8 | 9 | 11 | 12 | 12 | 11 | 10 | 9 | 9 | 11 | 12 | 13 | 13 | 13 | 12 | 11 | 11 | 14 | 17 | 15 | 13 | 11 | 10 |
| Feels °C (?) | 4 | 3 | 5 | 8 | 9 | 8 | 6 | 4 | 5 | 5 | 8 | 9 | 10 | 11 | 10 | 9 | 8 | 7 | 10 | 10 | 10 | 6 | 4 | 3 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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