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Surf Forecasts:
Kugenuma Rivermouth surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 8 pm Tuesday 26 May 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
20.4° C
(Which is 1.0°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 1AM is: 0.4m 8s primary swell from a Southeast direction and 0.1m 6s secondary swell from a South direction (forecast issued at 08:00pm May 26). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 May) | 1ft (0.3m) | 7s |
| Afternoon (27 May) | 1.5ft (0.4m) | 8s |
| Evening (27 May) | 1ft (0.3m) | 8s |
Table - waves today at Kugenuma Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 3mm), mostly falling on Thu morning. Warm (max 26°C on Fri morning, min 20°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Tue 26 | Wednesday 27 | Thursday 28 | Friday 29 | |||||||||||||||||||||
6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 10 | SE 10 | SE 10 | ESE 9 | S 5 | S 6 | S 6 | S 6 | S 6 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | |
16 | 15 | 15 | 14 | 9 | 9 | 15 | 15 | 10 | 10 | 10 | 15 | 15 | 14 | 8 | 25 | 60 | 95 | 100 | 100 | 262 | 352 | 89 | 117 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-off | glassy | cross-off | off | off | cross-off | on | on | on | on | on | on | on | on | glassy | on | on | on | cross-on | cross | off | on | cross-on | |
High Tide | 1:31AM1.27m | 3:11PM1.13m | 2:02AM1.31m | 4:04PM1.21m | 2:30AM1.35m | |||||||||||||||||||
Low Tide | 7:28PM0.71m | 8:34AM0.39m | 8:22PM0.79m | 9:11AM0.25m | 9:06PM0.86m | 9:44AM0.13m | ||||||||||||||||||
 |  |  | |  | | |  | | | | | | |  | | | | | | | | | | |
 | — | — | — | 4:31 | — | — | — | — | — | — | — | 4:30 | — | — | — | — | — | — | — | 4:30 | — | — | — | — |
 | 6:46 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:47 | — | — | — | — | — | — | 6:49 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 21 | 21 | 21 | 21 | 23 | 25 | 24 | 23 | 22 | 21 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 25 | 26 | 25 |
23 | 22 | 23 | 21 | 21 | 23 | 26 | 24 | 23 | 21 | 19 | 18 | 19 | 21 | 23 | 24 | 23 | 22 | 23 | 23 | 24 | 27 | 28 | 26 | |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 10 | SE 10 | S 4 | ESE 9 | SE 9 | E 13 | SE 10 | SE 10 | SE 10 | SSW 7 | S 7 | SSW 7 | SSW 7 |
 kJ | 16 | 15 | 15 | 14 | 9 | 9 | 15 | 15 | 10 | 10 | 10 | 15 | 15 | 2 | 8 | 3 | 3 | 4 | 4 | 4 | 114 | 100 | 89 | 117 |
Swell 2 Height (m) Direction Period (s) | S 6 | S 6 | S 6 | S 6 | S 6 | SE 10 | SE 10 | S 6 | SE 10 | SE 10 | SE 10 | E 13 | E 13 | SE 10 | SE 4 | S 9 | S 9 | E 12 | E 12 | SE 12 | E 8 | ESE 12 | SE 12 | SE 12 |
| kJ | 3 | 3 | 1 | 1 | 1 | 4 | 4 | 1 | 4 | 4 | 4 | 4 | 3 | 14 | 1 | 2 | 2 | 3 | 3 | 6 | 1 | 14 | 6 | 6 |
Swell 3 Height (m) Direction Period (s) | S 11 | SE 11 | SE 11 | SE 11 | SE 11 | S 6 | S 6 | SE 14 | E 14 | S 5 | E 13 | SE 10 | SE 10 | E 13 | SE 10 | E 13 | S 9 | ESE 12 | ESE 13 | S 9 | E 12 | — | S 15 | S 15 |
| kJ | 2 | 5 | 5 | 4 | 4 | 1 | 1 | 7 | 4 | 1 | 4 | 4 | 4 | 3 | 4 | 3 | 2 | 15 | 16 | 2 | 3 | — | 4 | 4 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | SSW 3 | SSW 4 | S 4 | — | S 4 | S 5 | S 6 | S 6 | S 6 | S 6 | SSW 7 | SSW 7 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 3 | 7 | 7 | — | 2 | 25 | 60 | 95 | 100 | 100 | 262 | 352 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 45 | 30 | 57 | 24 | 24 | 57 | 24 | 26 | 84 | 84 | 89 | 88 | 85 | 30 | 30 | 30 | 7 | 7 | 7 | 7 | 2 | 0 | 26 | 26 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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