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Surf Forecasts:
Kugenuma Rivermouth surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 8 am Tuesday 31 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
15.3° C
(Which is 1.9°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: 2.4m 7s primary swell from a South direction and 0.1m 17s secondary swell from a Southeast direction (forecast issued at 08:00am March 31). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Mar) | 6ft (1.8m) | 6s |
| Afternoon (31 Mar) | 10ft (3.0m) | 8s |
| Evening (31 Mar) | 10ft (3.0m) | 10s |
Table - waves today at Kugenuma Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 31 | Wednesday 01 | Thursday 02 | Fri 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) (?) | 5 | 6 | 7 | 8 | 9 | 10 | 10 | 10 | 10 | 9 | 9 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 64 | 193 | 380 | 1075 | 2139 | 1787 | 1296 | 802 | 552 | 264 | 124 | 85 | 83 | 60 | 58 | 43 | 29 | 71 | 122 | 133 | 105 | 50 | 28 | 28 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | on | on | on | on | on | glass | off | cross- off | cross- off | cross- off | off | cross- off | off | off | cross- off | off | off | cross- off | cross- off | cross- off | off | glass |
High Tide / height (m) | 4:10AM 1.27 | 3:59PM 1.27 | 4:23AM 1.29 | 4:36PM 1.33 | 4:38AM 1.33 | 5:12PM 1.35 | ||||||||||||||||||
Low Tide / height (m) | 10:08AM 0.49 | 10:15PM 0.33 | 10:31AM 0.36 | 10:41PM 0.39 | 10:55AM 0.23 | 11:03PM 0.46 | ||||||||||||||||||
Tuesday 31 | Wednesday 01 | Thursday 02 | Fri 03 | |||||||||||||||||||||
| Sunrise | 5:31 | - | - | - | - | - | - | - | 5:30 | - | - | - | - | - | - | - | 5:28 | - | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:00 | - | - | - | - | - | - | - | 6:01 | - | - | - | - | - | - | - | 6:02 | - | - | - |
 |  | |  | |  |  |  |  | | | | |  | |  | | | | | |  | | | |
Rain (mm) | - | 2 | 5 | 10 | 3 | 1 | - | - | - | - | - | 3 | 9 | 8 | 10 | 10 | 1 | 1 | 1 | - | - | - | - | - |
| Temp. °C | 17 | 15 | 15 | 17 | 18 | 18 | 18 | 16 | 16 | 16 | 14 | 13 | 12 | 11 | 11 | 10 | 11 | 11 | 10 | 10 | 10 | 11 | 11 | 11 |
| Feels °C (?) | 11 | 7 | 9 | 10 | 9 | 13 | 14 | 16 | 12 | 12 | 10 | 9 | 7 | 5 | 3 | 2 | 5 | 6 | 7 | 8 | 8 | 9 | 7 | 9 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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