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Surf Forecasts:
Kugenuma Rivermouth surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 2 pm Saturday 28 Mar 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
15.4° 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 9PM is: 0.4m 3s primary swell from a South-southwest direction and 0.1m 6s secondary swell from a Southeast direction (forecast issued at 02:00pm March 28). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Mar) | - | - |
| Afternoon (28 Mar) | 1ft (0.3m) | 7s |
| Evening (28 Mar) | 1.5ft (0.4m) | 3s |
Table - waves today at Kugenuma Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 28 | Sunday 29 | Monday 30 | Tuesday 31 | |||||||||||||||||||||
| 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 | 6 AM | 9 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 7 | 7 | 6 | 3 | 9 | 12 | 12 | 4 | 4 | 4 | 11 | 7 | 12 | 12 | 12 | 12 | 12 | 3 | 4 | 4 | 4 | 5 | 5 | 5 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 7 | 7 | 4 | 3 | 2 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 6 | 15 | 20 | 26 | 39 | 64 | 117 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | on | on | cross- on | cross- on | cross- off | cross- off | off | glass | cross- on | on | cross- off | cross- off | off | off | off | on | on | on | on | on | on | on | on |
High Tide / height (m) | 12:38PM 1.01 | 3:43AM 1.22 | 2:18PM 1.09 | 3:57AM 1.25 | 3:16PM 1.19 | 4:10AM 1.27 | ||||||||||||||||||
Low Tide / height (m) | 8:19PM 0.29 | 9:21AM 0.78 | 9:07PM 0.28 | 9:45AM 0.63 | 9:45PM 0.29 | |||||||||||||||||||
Saturday 28 | Sunday 29 | Monday 30 | Tuesday 31 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 5:33 | - | - | - | - | - | - | - | 5:33 | - | - | - | - | - | - | - | 5:31 | - |
| Sunset | - | 5:59 | - | - | - | - | - | - | - | - | 6:00 | - | - | - | - | - | - | - | 6:00 | - | - | - | - | - |
 | |  |  | | | | | | |  |  | | | |  | | | | | | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 3 |
| Temp. °C | 14 | 14 | 15 | 15 | 14 | 14 | 13 | 15 | 17 | 17 | 17 | 16 | 15 | 14 | 13 | 14 | 15 | 16 | 17 | 17 | 17 | 16 | 16 | 14 |
| Feels °C (?) | 13 | 10 | 12 | 12 | 12 | 12 | 10 | 13 | 16 | 14 | 14 | 14 | 13 | 11 | 10 | 12 | 13 | 12 | 13 | 13 | 13 | 12 | 10 | 10 |
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Live Wave Height (m)
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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