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Surf Forecasts:
Kugenuma Rivermouth surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 2 am Saturday 21 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
16.3° C
(Which is normal for this time of year)How big are the waves at Kugenuma Rivermouth today?
The current surf forecast for Kugenuma Rivermouth at 10AM is: 0.1m 12s primary swell from a East direction (forecast issued at 02:00am February 21). The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Feb) | 0.5ft (0.1m) | 12s |
| Afternoon (21 Feb) | 0.5ft (0.1m) | 12s |
| Evening (21 Feb) | 0.5ft (0.1m) | 12s |
Table - waves today at Kugenuma Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 21 | Sunday 22 | Monday 23 | ||||||||||||||||||||||
| 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 | 6 PM | 9 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 4 | 12 | 4 | 12 | 12 | 12 | 12 | 12 | 12 | 5 | 6 | 12 | 12 | 4 | 4 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1 | 3 | 1 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 3 | 3 | 13 | 34 | 92 | 143 | 199 | 213 | 220 | 201 | 190 | 223 | 216 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | off | off | off | off | glass | glass | cross | cross | cross- on | cross- on | on | on | on | on | on | on | on | on | on | on | on | on | cross- off |
High Tide / height (m) | 7:04AM 1.40 | 7:39PM 1.21 | 7:29AM 1.39 | 8:32PM 1.09 | 7:57AM 1.36 | |||||||||||||||||||
Low Tide / height (m) | 12:48AM 0.39 | 1:25PM 0.30 | 1:12AM 0.53 | 2:10PM 0.29 | 1:32AM 0.67 | 3:05PM 0.31 | ||||||||||||||||||
Saturday 21 | Sunday 22 | Monday 23 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:22 | - | - | - | - | - | - | - | 6:20 | - | - | - | - | - | - | - | 6:20 | - | - | - | - |
| Sunset | - | - | - | - | - | 5:29 | - | - | - | - | - | - | - | 5:30 | - | - | - | - | - | - | - | 5:30 | - | - |
 |  | |  | | | | | | | | | | | | | |  |  |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | - | - | - | - |
| Temp. °C | 9 | 8 | 7 | 8 | 11 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 13 | 15 | 14 | 15 | 15 | 14 | 14 | 15 | 18 | 18 | 18 | 15 |
| Feels °C (?) | 4 | 3 | 2 | 3 | 8 | 9 | 9 | 9 | 9 | 8 | 8 | 7 | 7 | 8 | 7 | 8 | 8 | 7 | 8 | 10 | 13 | 12 | 13 | 11 |
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