Matsube Bay Surf Break

Lat Long: 35.14° N 140.32° E

Matsube Bay 48 hour detailed Surf Forecast

Issued: 8 am 04 Aug 2026 (local time)

Forecast update in  hr  min

Today's Matsube Bay sea temperature is
27.5° C
1.1° 

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


How big are the waves at Matsube Bay today (04 Aug):

  • Morning surf: Morning surf (04 Aug, local time) - 11ft (3.5m), 16s period with SE swell.
  • Afternoon surf: Afternoon surf (04 Aug, local time) - 11ft (3.5m), 16s period with SE swell.
  • Evening surf: Evening surf (04 Aug, local time) - 13ft (4.0m), 16s period with SE swell.

The current surf forecast for Matsube Bay at 5PM is: 4.0m 16s primary swell from a Southeast direction and 0.4m 13s secondary swell from a East-northeast direction, 1.7m 7s secondary swell from a East-northeast direction (forecast issued at 08:00am August 04). The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (04 Aug)11ft (3.5m)16s
Afternoon (04 Aug)11ft (3.5m)16s
Evening (04 Aug)13ft (4.0m)16s

Table - waves today at Matsube Bay. (Swell directed towards the surf break)


Short Range Forecast

Light rain (total 2mm), mostly falling on Wed night. Warm (max 29°C on Thu morning, min 23°C on Tue night). Winds decreasing (fresh winds from the NE on Tue morning, light winds from the E by Thu night).

Tuesday
4
Wednesday
5
Thursday
6
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
6 PM
9 PM
Rating
(10 max)
4
3
5
4
6
6
7
6
6
6
5
4
4
3
4
5
4
3
3
2
2
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
SE
16
3.5
SE
16
4
ESE
16
3.5
SE
16
4
SE
16
4
SE
16
4
SE
16
4
SE
15
4
SE
15
4
SE
15
4
SE
15
4
SE
14
4
SSE
14
3.5
SSE
14
3
SSE
14
3
SSE
14
3
SSE
13
3
S
14
3
S
14
3
S
14
3
S
14
3
S
14
Wave Graph
Metric surfscale
Energy kJ
5298
5567
7354
5953
7665
8327
8201
7322
7233
7258
6987
6402
5956
4278
3770
3228
3088
3062
3493
3524
3282
3056
Wind (km/h)
30
NNE
35
NE
30
NE
30
NE
30
NE
30
NE
30
NNE
30
NNE
30
NNE
30
NNE
30
NE
30
NE
25
NE
15
NE
15
NE
15
NNE
15
NNE
15
NE
15
E
15
ESE
15
ESE
15
ESE
Wind State
cross-off
cross
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross
cross-off
cross-off
cross
cross-on
cross-on
on
cross-on
High Tide
7:32AM1.21m
7:51PM1.38m
8:31AM1.11m
8:17PM1.37m
9:58AM1.02m
8:49PM1.35m
Low Tide
1:27PM0.54m
2:28AM0.50m
1:55PM0.69m
3:27AM0.45m
2:20PM0.85m
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:48
4:50
4:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:39
6:38
6:37
 mm
1
Temp °C
23
24
24
24
24
23
23
23
23
23
25
26
25
25
25
25
24
27
29
28
27
26
Feels °C
21
21
21
21
22
21
22
22
22
21
24
26
26
28
29
29
26
30
32
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 Matsube Bay 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.


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