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Surf Forecasts:

Monabe Rivermouth surfForecast / Shikoku / Japan

information circle12 Day Weather and Surf, issued 8 pm Wednesday 26 Nov 2025 JST
Forecast update in hr  min  s Forecast update imminent
Monabe Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Monabe Rivermouth sea temperature is
22.7° C
 (Which is 1.1°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Monabe Rivermouth this week:

The most powerful waves expected at Monabe Rivermouth in the next 12 days are 1.7m 6s and forecast to arrive on Friday (Nov 28) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Friday (Nov 28) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 3AM (Fri 28th Nov)5.5ft (1.7m) 6s

Table - best surf conditions forecast for Monabe Rivermouth over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Some drizzle, heaviest during Thu afternoon. Very mild (max 17°C on Thu afternoon, min 8°C on Fri night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 20°C on Mon afternoon, min 10°C on Sat night). Wind will be generally light.

Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
01
Tuesday
02
Wed
03
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.5
ESE
0.5
ESE
0.5
ESE
0.5
ESE
0.4
SE
0.4
SE
0.5
ESE
0.6
ESE
0.5
ESE
0.5
ESE
0.5
ESE
0.5
ESE
0.5
ESE
0.4
ESE
0.4
ESE
0.4
ESE
0.4
ESE
0.4
ESE
0.4
SE
0.4
SE
0.7
ESE
Period(s) (?)9999111111111111101011101010101010109
Wave
Graph
(?)Metric surfscale
Energy kJ (?)484750483332698166645959644343424241243176
Wind
(km/h)
10
N
5
NNE
5
S
25
W
10
NNW
10
WSW
10
N
5
N
5
SSW
10
N
5
NNE
5
S
0
NE
5
N
15
W
10
NNW
0
NNW
5
S
20
NNW
15
NW
25
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offglassglasscrosscross-
off		crossoffglassglassoffglassglassglassglasscrossoffglassglasscross-
off		cross-
off		cross-
off
High Tide
/ height (m)
11:03AM
1.48
9:46PM
1.39
12:04PM
1.50
11:24PM
1.33
1:01PM
1.54
1:10AM
1.36
1:50PM
1.61
2:35AM
1.47
2:35PM
1.67
3:42AM
1.62
3:17PM
1.74
4:39AM
1.75
3:58PM
1.80
Low Tide
/ height (m)
3:48AM
0.48
4:34PM
1.08
4:49AM
0.57
6:05PM
1.00
6:01AM
0.65
7:24PM
0.85
7:16AM
0.71
8:23PM
0.64
8:24AM
0.75
9:12PM
0.42
9:24AM
0.78
9:58PM
0.21
10:17AM
0.82
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
01
Tuesday
02
Wed
03
Sunrise-6:46--6:47--6:48--6:48--6:50--6:50--6:50-
Sunset--4:57--4:57--4:57--4:57--4:55--4:55--4:55
clear
part cloud
rain showers
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
clear
Rain (mm)
--1------------------
Temp. °C121617151314914141016171519201316161197
Feels °C (?)91513121011512127141615171711141571-1
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Monabe Rivermouth 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.

View detailed surf forecast for Monabe Rivermouth at:
surf-forecast.com

Information about the Monabe Rivermouth Surf forecast

The above surf forecast table for Monabe Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Monabe Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Monabe Rivermouth surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Monabe Rivermouth) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Monabe Rivermouth may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Monabe Rivermouth is 11 km (7 miles) from the city of Aki. If you plan a holiday in Shikoku, look for hotels and other accommodation in Aki. Aki has rooms for a wide range of budgets as well as car hire and transport links.

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