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Surf Forecasts:
Kugenuma Rivermouth surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 8 am Saturday 28 Feb 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
14.7° C
(Which is 1.7°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 1PM is: 0.4m 8s primary swell from a South-southeast direction and 0.1m 12s secondary swell from a South direction (forecast issued at 08:00am February 28). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Feb) | 1.5ft (0.4m) | 8s |
| Afternoon (28 Feb) | 1.5ft (0.4m) | 8s |
| Evening (28 Feb) | 1ft (0.3m) | 8s |
Table - waves today at Kugenuma Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 28 | Sunday 01 | Monday 02 | Tue 03 | |||||||||||||||||||||
| 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) (?) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 23 | 23 | 22 | 14 | 14 | 10 | 9 | 5 | 6 | 10 | 12 | 12 | 10 | 16 | 16 | 16 | 16 | 9 | 6 | 6 | 6 | 6 | 8 | 8 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | cross- off | cross- off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- on | on | glass | cross- off | off | off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 4:43AM 1.24 | 2:08PM 1.14 | 4:54AM 1.27 | 3:10PM 1.22 | 5:05AM 1.29 | 3:56PM 1.29 | ||||||||||||||||||
Low Tide / height (m) | 9:48AM 0.94 | 9:36PM 0.13 | 10:12AM 0.83 | 10:12PM 0.11 | 10:34AM 0.71 | 10:42PM 0.13 | ||||||||||||||||||
Saturday 28 | Sunday 01 | Monday 02 | Tue 03 | |||||||||||||||||||||
| Sunrise | - | 6:13 | - | - | - | - | - | - | - | 6:13 | - | - | - | - | - | - | - | 6:11 | - | - | - | - | - | - |
| Sunset | - | - | - | 5:35 | - | - | - | - | - | - | - | 5:36 | - | - | - | - | - | - | - | 5:37 | - | - | - | - |
 |  |  |  |  | | | | | | | |  | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 13 | 13 | 17 | 17 | 16 | 14 | 13 | 11 | 10 | 10 | 12 | 12 | 13 | 13 | 13 | 12 | 11 | 10 | 10 | 11 | 11 | 10 | 10 | 10 |
| Feels °C (?) | 11 | 11 | 13 | 14 | 10 | 10 | 10 | 8 | 7 | 6 | 9 | 8 | 10 | 11 | 12 | 9 | 5 | 4 | 6 | 7 | 7 | 6 | 6 | 5 |
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