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Surf Forecasts:

Keta Reef Oshima surfForecast / Izu Islands / Japan

information circle48hr Weather and Surf, issued 8 pm Thursday 12 Feb 2026 JST
Forecast update in hr  min  s Forecast update imminent
Keta Reef Oshima surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Keta Reef Oshima sea temperature is
16.3° C
 (Which is slightly cooler than normal)

How big are the waves at Keta Reef Oshima today?

The current surf forecast for Keta Reef Oshima at 2AM is: 0.6m 8s primary swell from a Southwest direction and 0.2m 4s secondary swell from a East direction (forecast issued at 08:00pm February 12). The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (13 Feb)1.5ft (0.4m)7s
Afternoon (13 Feb)3.5ft (1.0m)6s
Evening (13 Feb)2ft (0.6m)6s

Table - waves today at Keta Reef Oshima. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Thu
12
Friday
13
Saturday
14
Sunday
15
6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM
Rating
(10 max)
0
0
0
0
0
0
1
1
1
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 (?)
0.6
SW
0.7
SW
0.6
SW
0.6
SW
0.4
SW
0.4
SW
1
WSW
1
WSW
1.5
WSW
0.6
SW
0.5
SW
0.3
SE
0.3
SE
0.3
SE
0.3
SE
0.3
SE
0.3
SE
0.3
SE
0.4
SE
0.4
SE
0.4
SE
0.9
SW
0.5
SE
1.1
SW
Period(s) (?)88877766666101010101010101010105105
Wave
Graph
(?)Metric surfscale
Energy kJ (?)4958463419177580140321915151514151516293737405058
Wind
(km/h)
10
ESE
15
ENE
15
NNE
10
NNW
5
WNW
5
NNE
10
NE
0
SW
5
WNW
15
NNE
20
NNE
20
NNE
10
NE
10
NNW
5
WNW
20
SW
30
SW
35
WSW
35
SW
35
SW
40
WSW
35
WSW
40
SW
40
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		offcross-
off		cross-
on		cross-
on		glasscross-
off		glassglasscross-
off		cross-
off		cross-
off		cross-
off		crossglasscross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on
High Tide
/ height (m)
4:33AM
1.13
12:40PM
1.11
4:41AM
1.20
2:07PM
1.18
4:57AM
1.26
Low Tide
/ height (m)
8:01PM
0.32
8:41AM
1.03
8:55PM
0.22
9:28AM
0.95
9:36PM
0.12
9:59AM
0.86
Thu
12
Friday
13
Saturday
14
Sunday
15
Sunrise-----6:31-------6:30-------6:28--
Sunset-------5:22-------5:22-------5:23
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
clear
clear
clear
Rain (mm)
------------------------
Temp. °C1011111010109911111010101010111212131313141414
Feels °C (?)777778578655778654665655
  • 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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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 Keta Reef Oshima 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 Keta Reef Oshima at:
surf-forecast.com

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