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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 2 pm Friday 20 Feb 2026 JSTForecast update in hr min s Forecast update imminent
Katahama surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Katahama sea temperature is
14.7° C
(Which is 2.3°C colder than average for this time of year)How big are the waves at Katahama today?
The current surf forecast for Katahama at 10PM is: 0.3m 12s primary swell from a East direction and 0.1m 9s secondary swell from a Southeast direction (forecast issued at 02:00pm February 20). An open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Feb) | - | - |
| Afternoon (20 Feb) | 1.5ft (0.4m) | 12s |
| Evening (20 Feb) | 1ft (0.3m) | 12s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | |||||||||||||||||||||
| 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 5 | 6 | 6 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 46 | 47 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 12 | 12 | 11 | 11 | 11 | 25 | 25 | 32 | 67 | 156 | 25 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross- off | cross- off | off | cross- off | cross- off | glass | on | cross- on | glass | glass | cross- off | cross- off | glass | glass | cross- on | cross | cross- on | cross | cross | cross | cross | cross- off |
High Tide / height (m) | 7:22PM 1.42 | 7:38AM 1.54 | 8:07PM 1.32 | 8:09AM 1.50 | 8:59PM 1.19 | 8:42AM 1.43 | ||||||||||||||||||
Low Tide / height (m) | 1:26PM 0.34 | 1:26AM 0.36 | 2:07PM 0.32 | 1:57AM 0.50 | 2:53PM 0.33 | 2:30AM 0.65 | ||||||||||||||||||
Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:26 | - | - | - | - | - | - | - | 6:26 | - | - | - | - | - | - | - | 6:24 |
| Sunset | - | 5:32 | - | - | - | - | - | - | - | 5:34 | - | - | - | - | - | - | - | 5:35 | - | - | - | - | - | - |
 | |  |  | | | |  | | | | | | | | | | | | | | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 |
| Temp. °C | 8 | 9 | 10 | 9 | 8 | 7 | 7 | 8 | 10 | 11 | 10 | 10 | 9 | 9 | 8 | 10 | 12 | 15 | 15 | 15 | 14 | 15 | 14 | 14 |
| Feels °C (?) | 4 | 3 | 4 | 4 | 4 | 3 | 3 | 5 | 7 | 7 | 7 | 7 | 6 | 6 | 5 | 8 | 8 | 11 | 11 | 11 | 12 | 11 | 11 | 11 |
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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 Katahama 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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