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Surf Forecasts:
Kugenuma Rivermouth surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 8 pm Wednesday 01 Apr 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
15.9° C
(Which is 1.3°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 3AM is: 0.8m 8s primary swell from a South direction and 0.1m 14s secondary swell from a Southeast direction (forecast issued at 08:00pm April 01). An open ocean swell of 0.8m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (02 Apr) | 4.5ft (1.4m) | 9s |
| Afternoon (02 Apr) | 4.5ft (1.4m) | 9s |
| Evening (02 Apr) | 2.5ft (0.8m) | 9s |
Table - waves today at Kugenuma Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wed 01 | Thursday 02 | Friday 03 | Saturday 04 | |||||||||||||||||||||
| 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 | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 8 | 7 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 5 | 6 | 3 | 5 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 107 | 77 | 75 | 74 | 76 | 292 | 397 | 348 | 211 | 92 | 30 | 28 | 27 | 16 | 16 | 9 | 9 | 5 | 4 | 5 | 5 | 5 | 8 | 73 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | cross- off | cross- off | off | cross- off | off | off | glass | cross- off | cross- on | cross- on | on | on | on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | on |
High Tide / height (m) | 4:36PM 1.33 | 4:38AM 1.33 | 5:12PM 1.35 | 4:55AM 1.37 | 5:48PM 1.35 | 5:15AM 1.41 | ||||||||||||||||||
Low Tide / height (m) | 10:41PM 0.39 | 10:55AM 0.23 | 11:03PM 0.46 | 11:21AM 0.13 | 11:25PM 0.54 | 11:51AM 0.06 | ||||||||||||||||||
Wed 01 | Thursday 02 | Friday 03 | Saturday 04 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:28 | - | - | - | - | - | - | - | 5:26 | - | - | - | - | - | - | - | 5:26 | - | - | - |
| Sunset | 6:01 | - | - | - | - | - | - | - | 6:02 | - | - | - | - | - | - | - | 6:04 | - | - | - | - | - | - | - |
 |  |  | |  | | | |  |  |  | | | | | | |  | | |  | | | | |
Rain (mm) | 7 | 8 | 16 | 20 | 1 | 1 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 |
| Temp. °C | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 11 | 12 | 12 | 12 | 12 | 12 | 13 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 15 | 16 | 15 |
| Feels °C (?) | 7 | 6 | 4 | 5 | 5 | 5 | 7 | 9 | 10 | 8 | 10 | 9 | 9 | 9 | 8 | 9 | 10 | 12 | 13 | 12 | 11 | 10 | 10 | 7 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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