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Surf Forecasts:
Kugenuma Rivermouth surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 8 pm Monday 06 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
16.0° C
(Which is 1.6°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 2AM is: 0.9m 5s primary swell from a South-southwest direction and 0.3m 7s secondary swell from a Southeast direction (forecast issued at 08:00pm April 06). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (07 Apr) | 4.5ft (1.3m) | 5s |
| Afternoon (07 Apr) | 3ft (0.9m) | 6s |
| Evening (07 Apr) | 1.5ft (0.4m) | 8s |
Table - waves today at Kugenuma Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Mon 06 | Tuesday 07 | Wednesday 08 | Thursday 09 | |||||||||||||||||||||
| 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) (?) | 7 | 4 | 4 | 5 | 5 | 5 | 6 | 6 | 6 | 8 | 9 | 9 | 9 | 8 | 9 | 9 | 9 | 8 | 8 | 4 | 8 | 8 | 4 | 4 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 88 | 28 | 34 | 32 | 47 | 90 | 59 | 47 | 101 | 17 | 101 | 69 | 93 | 47 | 27 | 38 | 38 | 14 | 13 | 7 | 6 | 7 | 21 | 41 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | on | on | on | on | on | on | off | off | off | off | off | off | on | on | on | on | on | cross- on | cross- on | on | on | on |
High Tide / height (m) | 7:53PM 1.17 | 6:30AM 1.40 | 8:52PM 1.08 | 6:59AM 1.33 | 10:26PM 1.01 | 7:29AM 1.22 | ||||||||||||||||||
Low Tide / height (m) | 12:31AM 0.80 | 1:44PM 0.10 | 12:52AM 0.89 | 2:38PM 0.20 | 1:02AM 0.98 | |||||||||||||||||||
Mon 06 | Tuesday 07 | Wednesday 08 | Thursday 09 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:20 | - | - | - | - | - | - | - | 5:20 | - | - | - | - | - | - | - | 5:18 | - | - | - |
| Sunset | 6:06 | - | - | - | - | - | - | - | 6:07 | - | - | - | - | - | - | - | 6:07 | - | - | - | - | - | - | - |
 |  | | |  | |  | | |  | | |  | | | | |  | | | | | | | |
Rain (mm) | - | - | - | - | - | - | 1 | 3 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 19 | 18 | 17 | 17 | 17 | 17 | 15 | 15 | 15 | 11 | 10 | 10 | 9 | 11 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 14 | 16 | 16 |
| Feels °C (?) | 15 | 15 | 14 | 13 | 13 | 11 | 11 | 11 | 13 | 1 | 0 | 1 | 0 | 5 | 8 | 7 | 8 | 7 | 7 | 7 | 7 | 8 | 8 | 7 |
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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