- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Sagami River surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 8 am Thursday 21 Aug 2025 JST
How big are the waves at Sagami River today?
The current surf forecast for Sagami River at 9AM is: 0.4m 5s primary swell from a South-southwest direction and 0.1m 8s secondary swell from a Southwest direction (forecast issued at 08:00am August 21). The wind direction is predicted to be glassy.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 1.5ft (0.4m) | 5s |
| Afternoon (21 Aug) | 1.5ft (0.4m) | 6s |
| Evening (21 Aug) | 1ft (0.3m) | 6s |
Table - waves today at Sagami River. (Swell directed towards the surf break)
Thursday 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
| 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 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 3 | 4 | 4 | 4 | 4 |
Wave (?)Graph  | ||||||||||||||||||||||||
| Energy (?) | 18 | 14 | 15 | 20 | 29 | 17 | 17 | 20 | 22 | 15 | 13 | 23 | 16 | 13 | 12 | 7 | 7 | 9 | 7 | 8 | 19 | 20 | 22 | 13 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | on | cross- on | cross- on | glass | off | off | cross- off | cross- off | on | cross- on | cross- on | on | cross- on | glass | glass | on | on | cross- on | cross | cross | cross | cross- off |
High Tide / height (m) | 4:54PM 1.39 | 3:10AM 1.43 | 5:14PM 1.42 | 4:00AM 1.49 | 5:34PM 1.44 | |||||||||||||||||||
Low Tide / height (m) | 9:36AM 0.15 | 9:58PM 0.97 | 10:17AM 0.12 | 10:31PM 0.85 | 10:52AM 0.14 | 11:02PM 0.73 | ||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
| Sunrise | 5:05 | - | - | - | - | - | - | - | 5:05 | - | - | - | - | - | - | - | 5:07 | - | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:24 | - | - | - | - | - | - | - | 6:23 | - | - | - | - | - | - | - | 6:22 | - | - | - |
 |  | | | |  | | | |  | | | |  | | | | | | | |  | | | |
Rain (mm) | 2 | - | - | - | - | 1 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 27 | 30 | 30 | 30 | 30 | 28 | 28 | 27 | 27 | 29 | 30 | 31 | 29 | 28 | 27 | 27 | 27 | 28 | 29 | 31 | 30 | 28 | 28 | 27 |
| Feels °C (?) | 31 | 34 | 33 | 33 | 34 | 33 | 31 | 30 | 30 | 32 | 33 | 33 | 31 | 31 | 31 | 32 | 32 | 32 | 30 | 32 | 31 | 30 | 31 | 30 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Kanagawa
Continuing clean conditions at Sagami River (calm at Zushi Kanagawa 19 km from Sagami River). 0.4m 5s windswell from the SSW with a 0.2m 8s swell, also from the SSW and a 0.2m 10s swell, also from the SSE. 3 swells combining to make bigger set waves.
19 km away, 40 min ago
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 Sagami River 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