Sagami River Surf Break

Lat Long: 35.31° N 139.36° E

Sagami River 48 hour detailed Surf Forecast

Issued: 8 pm 06 Sep 2026 (local time)

Forecast update in  hr  min

Today's Sagami River sea temperature is
28.2°C
1.7° 

Sagami River surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Sagami River today (07 Sep):

  • Morning surf: Morning surf (07 Sep, local time) - 6ft (1.8m), 9s period with S swell.
  • Afternoon surf: Afternoon surf (07 Sep, local time) - 7ft (2.2m), 9s period with S swell.
  • Evening surf: Evening surf (07 Sep, local time) - 6ft (1.8m), 9s period with S swell.

The current surf forecast for Sagami River at 2AM is: 2.0m 9s primary swell from a South-southeast direction and 0.7m 9s secondary swell from a South direction (forecast issued at 08:00pm September 06). An open ocean swell of 0.2m 4s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (07 Sep)6ft (1.8m)9s
Afternoon (07 Sep)7ft (2.2m)9s
Evening (07 Sep)6ft (1.8m)9s

Table - waves today at Sagami River. (Swell directed towards the surf break)


Short Range Forecast

Heavy rain (total 243mm), heaviest during Sun night. Warm (max 28°C on Wed morning, min 23°C on Sun night). Winds decreasing (fresh winds from the S on Mon morning, calm by Tue night).

Sun
6
Monday
7
Tuesday
8
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
Rating
(10 max)
0
0
0
0
0
0
0
0
3
1
1
1
2
2
2
2
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SE
8
1
SE
8
1.1
SE
8
2
SSE
9
1.8
SSE
9
1.8
S
9
2
S
9
2.2
S
9
2.5
S
9
1.8
S
9
1.6
S
9
1.6
S
9
1.5
S
9
1.4
S
9
1.1
S
9
1.1
S
8
1.6
S
8
0.9
SSW
10
Wave Graph
Metric surfscale
Energy kJ
91
129
149
601
564
556
651
788
1007
528
417
417
367
320
186
177
347
165
Wind (km/h)
30
NNE
30
NE
25
E
30
S
30
SSE
35
S
25
SSW
20
SSW
10
SW
15
SW
15
SW
15
SW
5
W
10
NNE
10
NNE
5
N
5
WNW
5
NNW
Wind State
cross-off
cross-off
cross
on
on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross-off
cross-off
cross-off
glassy
glassy
glassy
High Tide
3:36PM1.25m
10:48PM1.25m
3:45PM1.33m
1:09AM1.28m
4:04PM1.39m
Low Tide
7:15PM1.21m
7:42AM0.29m
8:41PM1.09m
8:43AM0.22m
heavy rain
heavy rain
heavy rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
cloud
cloud
cloud
cloud
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:18
5:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:02
6:01
6:00
 mm
48
39
83
69
18
11
4
2
1
1
1
1
4
2
Temp °C
22
23
24
25
25
26
26
26
26
26
26
26
26
25
26
26
25
25
Feels °C
21
22
25
25
25
25
27
28
30
29
29
29
31
29
30
31
30
30
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 

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 locationNearest