- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Kugenuma Rivermouth surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 8 pm Sunday 31 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
20.8° C
(Which is 1.0°C colder than average for this time of year)How big are the waves at Kugenuma Rivermouth today (01 Jun):
- Morning surf: Morning surf (01 Jun, local time) - 2ft (0.6m), 11s period with S swell.
- Afternoon surf: Afternoon surf (01 Jun, local time) - 3ft (0.9m), 10s period with S swell.
- Evening surf: Evening surf (01 Jun, local time) - 2.5ft (0.7m), 13s period with SSW swell.
The current surf forecast for Kugenuma Rivermouth at 1AM is: 0.7m 12s primary swell from a South direction and 0.1m 12s secondary swell from a Southeast direction, 0.8m 5s secondary swell from a South-southwest direction (forecast issued at 08:00pm May 31). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 Jun) | 2ft (0.6m) | 11s |
| Afternoon (01 Jun) | 3ft (0.9m) | 10s |
| Evening (01 Jun) | 2.5ft (0.7m) | 13s |
Table - waves today at Kugenuma Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 169mm), heaviest during Wed morning. Warm (max 23°C on Sun night, min 17°C on Wed afternoon). Winds increasing (calm on Tue night, near gales from the NNE by Wed afternoon). | ||||||||||||||||||||||||
Sun 31 | Monday 1 | Tuesday 2 | Wednesday 3 | |||||||||||||||||||||
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 |   |    |    |    | ||||||||||||||||||||
S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 | S 10 | S 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 13 | S 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SE 7 | SSE 8 | SSE 10 | |
108 | 100 | 132 | 125 | 119 | 86 | 85 | 158 | 163 | 168 | 238 | 242 | 238 | 189 | 240 | 238 | 220 | 190 | 127 | 127 | 133 | 522 | 330 | 1086 | |
Wind (km/h) | ||||||||||||||||||||||||
on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | on | cross-on | cross-on | on | on | glassy | cross-off | cross-off | cross-off | off | |
High Tide | 6:02PM1.32m | 3:57AM1.47m | 6:36PM1.32m | 4:31AM1.48m | 7:12PM1.31m | 5:09AM1.46m | ||||||||||||||||||
Low Tide | 10:38PM0.99m | 11:21AM-0.06m | 11:08PM1.00m | 11:56AM-0.05m | 11:44PM1.00m | 12:32PM-0.01m | ||||||||||||||||||
 |  | | |  | | | | | |  | |  | | | | | | |  |  | | | | |
 | — | — | — | 4:28 | — | — | — | — | — | — | — | 4:28 | — | — | — | — | — | — | — | 4:28 | — | — | — | — |
 | 6:50 | — | — | — | — | — | — | — | 6:51 | — | — | — | — | — | — | — | 6:51 | — | — | — | — | — | — | 6:52 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 11 | 17 | 55 | 54 | |
Temp °C | 24 | 23 | 21 | 21 | 21 | 23 | 23 | 22 | 22 | 21 | 21 | 20 | 20 | 21 | 22 | 21 | 21 | 21 | 20 | 19 | 19 | 18 | 18 | 17 |
22 | 20 | 20 | 21 | 21 | 23 | 22 | 19 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 22 | 19 | 17 | 13 | 9 | |
Swell 1 Height (m) Direction Period (s) | S 12 | S 12 | S 12 | SSW 5 | S 11 | S 11 | S 11 | SSW 14 | S 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SW 14 | SSW 13 | SW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSE 7 | SSE 8 | SSE 10 |
 kJ | 108 | 100 | 132 | 28 | 119 | 86 | 85 | 145 | 163 | 168 | 238 | 242 | 238 | 189 | 102 | 238 | 88 | 190 | 127 | 127 | 133 | 153 | 330 | 1086 |
Swell 2 Height (m) Direction Period (s) | SE 12 | SSW 14 | SE 12 | S 11 | S 5 | S 5 | SSW 16 | SE 11 | SSW 15 | SSW 15 | SSW 18 | SW 17 | SW 16 | SSW 14 | SE 11 | SE 11 | SE 11 | SE 11 | S 6 | S 6 | SE 11 | SW 13 | SW 13 | SW 16 |
| kJ | 6 | 39 | 5 | 125 | 20 | 14 | 53 | 5 | 89 | 87 | 31 | 71 | 64 | 138 | 5 | 5 | 5 | 5 | 24 | 17 | 5 | 80 | 40 | 236 |
Swell 3 Height (m) Direction Period (s) | SE 12 | SSE 6 | ESE 10 | S 18 | SSW 17 | SSW 14 | SSW 14 | E 9 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | S 15 | S 15 | — | SE 10 | SE 11 | SE 11 | S 13 | SE 11 | SW 16 | SSW 20 |
| kJ | 22 | 3 | 9 | 6 | 29 | 39 | 36 | 7 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | — | 28 | 5 | 5 | 4 | 5 | 39 | 158 |
Wind waves Height (m) Direction Period (s) | S 6 | SSW 3 | SSW 5 | SSW 5 | SSW 5 | SSW 5 | S 5 | S 10 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | — | SSW 12 | S 3 | S 12 | S 6 | — | SE 6 | SSE 6 | SE 7 | ENE 4 | NE 5 |
| kJ | 6 | 4 | 28 | 47 | 34 | 15 | 13 | 158 | 32 | 34 | 18 | 12 | 7 | — | 240 | 6 | 220 | 32 | — | 34 | 31 | 522 | 27 | 130 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 7 | 84 | 7 | 2 | 4 | 26 | 85 | 484 | 89 | 30 | 89 | 19 | 7 | 85 | 85 | 85 | 85 | 64 | 64 | 0 | 788 | 788 | 788 | 503 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
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
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Kugenuma Rivermouth surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest