Niyodo Rivermouth Surf Break

Lat Long: 33.54° N 133.69° E

Japan Surf

Issued: 8 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Niyodo Rivermouth sea temperature is
28.5° C
0.1° 

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

Detailed Japan surf forecast maps and the latest eyeball surf report from local surfers in the region. Near-shore swell is shown on the map together with the surf forecast rating for spots in Japan. Find the best places to surf in offshore conditions by selecting the wind option on the forecast map. Windsurfers and kite surfers can also use this option to find more favorable cross-shore conditions in Japan. Our local Wavefinder indicates where some of the best conditions are likely to be found in Japan over the next 7 days. Surf photos from Japan and reviews of the best spots and surfing conditions have been provided by local surfers.

Tue
Wed
Thu
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Preloading...
Loading...

16 day forecast maps are a premium feature
Sign Up

 

Japan Wavefinder

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Best forecast wave conditions in
Rating
(10 max)
1
1
1
1
1
2
3
2
2
2
3
2
2
2
2
2
3
3
4
4
4
Wave
Height (m)
Direction
Period (s)
0.5
SW
8
1
E
6
0.7
SE
8
0.7
ESE
8
0.5
E
9
1
E
8
2.4
SE
8
1.1
SSE
9
1.2
SSE
9
0.9
S
9
2.3
SSE
7
1
SSW
10
0.9
SSW
9
1
E
10
1
E
10
1
E
10
1.9
S
9
0.9
SSE
14
1.3
SSE
16
2
SSE
16
2.1
SE
16
Energy kJ
35
73
69
55
36
131
725
211
218
133
545
183
149
200
204
194
606
332
843
1982
2344
Wind (km/h)
25
E
25
E
5
SSE
10
SSE
15
ESE
0
S
25
SE
15
ESE
5
SSE
5
ESE
15
ESE
10
WSW
5
W
10
S
10
SW
15
WSW
25
SE
15
SSW
10
SSW
20
S
0
SSW
Wind State
off
off
glassy
cross-off
cross-off
glassy
off
cross-off
glassy
glassy
off
cross-off
cross-off
cross-off
off
cross-off
off
cross-off
cross-off
off
glassy
High Tide
10:34AM1.85m
9:01PM1.65m
9:37AM1.62m
9:40PM1.64m
10:15PM1.88m
2:43PM1.35m
9:27PM1.49m
9:26PM1.25m
5:40PM1.54m
11:30PM1.23m
4:09PM1.21m
Low Tide
4:28PM0.80m
3:17AM0.58m
1:20PM0.80m
6:04AM0.67m
4:19PM1.11m
5:42AM0.66m
7:05AM0.75m
7:43AM0.45m
7:26PM1.15m
8:53AM0.36m
10:27PM1.07m
thunderstorm
clear
thunderstorm
part cloud
clear
thunderstorm
thunderstorm
clear
thunderstorm
part cloud
mod rain
clear
clear
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
clear
clear
clear
 mm
1
2
3
3
1
9
2
3
1
2
Max °C
28
28
26
28
27
27
28
29
27
30
26
25
28
27
26
27
28
26
26
27
26
Min °C
27
28
25
27
26
25
26
28
26
28
26
25
27
27
25
26
28
25
26
26
24
Chill °C
28
28
26
28
27
27
28
29
27
30
26
25
28
27
26
27
28
26
26
27
26
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
5:24
6:03
5:28
5:16
5:07
5:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:02
6:22
6:52
7:00
6:19
6:58
6:16
Nearest locationNearest