Matsube Bay surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 pm Saturday 21 Mar 2026 JST
Forecast update in hr  min  s Forecast update imminent
Matsube Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Matsube Bay sea temperature is
15.3° C
(Which is 1.7°C colder than average for this time of year)

How big are the waves at Matsube Bay today?

The current surf forecast for Matsube Bay at 2AM is: 0.8m 12s primary swell from a East-northeast direction and 0.2m 16s secondary swell from a South-southeast direction, 0.5m 4s secondary swell from a South-southwest direction (forecast issued at 08:00pm March 21). The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (22 Mar)2.5ft (0.7m)12s
Afternoon (22 Mar)2.5ft (0.7m)12s
Evening (22 Mar)1.5ft (0.5m)12s

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


Updates in  hr  min  s Forecast update imminent
Sat
21
Sunday
22
Monday
23
Tuesday
24
6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM
Rating
(10 max)
1
0
0
1
1
1
0
0
0
0
1
0
1
1
1
1
2
2
1
1
1
2
1
0
Swell
Height Map
Wave Height (m) & direction (?)
1
ENE
0.9
ENE
0.8
ENE
0.8
ENE
0.8
ENE
0.7
ENE
0.7
ENE
0.7
ENE
0.5
ENE
0.5
ENE
0.5
ENE
1.1
S
0.5
ENE
1
SSE
1
SSE
1.2
SSE
1.4
SE
1.1
SE
1.1
SSE
1.3
SSE
1.6
SE
1.4
SE
1.3
SE
1.2
SE
Period(s) (?)131212121212121212121151166678888988
Wave
Graph
(?)Metric surfscale
Energy kJ (?)30724517216716412512312378777473736277109200129155237346290256201
Wind
(km/h)
15
SW
20
SSW
15
S
15
SSW
15
SW
10
WSW
20
SW
20
SW
15
SW
15
SW
10
SW
10
SW
15
SW
10
W
10
WNW
0
NW
5
SSW
5
N
20
N
20
NNE
20
NNE
15
N
10
ENE
10
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
crosscross-
on
crosscross-
off
cross-
off
crosscrosscrosscrosscross-
off
crosscross-
off
cross-
off
offglassglasscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
on
on
High Tide
/ height (m)
6:18PM
1.42
5:47AM
1.48
7:06PM
1.33
6:09AM
1.48
8:02PM
1.22
6:33AM
1.46
Low Tide
/ height (m)
11:58PM
0.61
12:30PM
0.15
12:24AM
0.75
1:11PM
0.15
12:47AM
0.88
2:00PM
0.20
Sat
21
Sunday
22
Monday
23
Tuesday
24
Sunrise----5:41-------5:39-------5:37---
Sunset-------5:51-------5:52-------5:52
clear
clear
part cloud
rain showers
clear
clear
cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
rain showers
clear
part cloud
clear
clear
clear
clear
clear
Rain (mm)
---1--------11131-------
Temp. °C121213131212141414141313121211101111121210121414
Feels °C (?)77810899910101010999910977571010
  • 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

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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