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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 2 am Saturday 04 Apr 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
15.5° C
(Which is 2.5°C colder than average for this time of year)How big are the waves at Katahama today?
The current surf forecast for Katahama at 8AM is: 0.4m 10s primary swell from a East-southeast direction and 0.6m 4s secondary swell from a South-southeast direction (forecast issued at 02:00am April 04). An open ocean swell of 0.5m 5s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Apr) | 1.5ft (0.4m) | 10s |
| Afternoon (04 Apr) | 6.5ft (2.0m) | 7s |
| Evening (04 Apr) | 11ft (3.5m) | 9s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 04 | Sunday 05 | Monday 06 | ||||||||||||||||||||||
| 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 | 12 PM | 3 PM | 6 PM | 9 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 10 | 10 | 10 | 7 | 8 | 9 | 10 | 11 | 10 | 11 | 10 | 9 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 32 | 32 | 33 | 33 | 56 | 372 | 729 | 1682 | 0 | 0 | 1517 | 0 | 0 | 371 | 330 | 295 | 244 | 103 | 99 | 99 | 96 | 84 | 84 | 82 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | cross | cross | cross- on | cross- on | on | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- off | cross- off | cross- off | off | cross- on | on | cross- on | glass | glass |
High Tide / height (m) | 5:51AM 1.57 | 6:45PM 1.44 | 6:18AM 1.57 | 7:25PM 1.38 | 6:48AM 1.54 | 8:12PM 1.30 | ||||||||||||||||||
Low Tide / height (m) | 11:56PM 0.50 | 12:25PM 0.11 | 12:23AM 0.57 | 12:59PM 0.09 | 12:54AM 0.66 | 1:39PM 0.12 | ||||||||||||||||||
Saturday 04 | Sunday 05 | Monday 06 | ||||||||||||||||||||||
| Sunrise | - | - | 5:31 | - | - | - | - | - | - | - | 5:30 | - | - | - | - | - | - | - | 5:28 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:08 | - | - | - | - | - | - | - | 6:09 | - | - | - | - | - | - | - | 6:10 | - |
 |  |  | |  | |  |  |  |  |  | | | | | |  | |  | | | | | | |
Rain (mm) | - | - | - | - | 1 | 3 | 9 | 25 | 9 | 6 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 14 | 14 | 15 | 17 | 17 | 16 | 17 | 18 | 17 | 17 | 19 | 20 | 20 | 17 | 17 | 16 | 16 | 14 | 16 | 17 | 18 | 18 | 18 |
| Feels °C (?) | 14 | 13 | 12 | 12 | 14 | 12 | 13 | 12 | 12 | 15 | 15 | 16 | 17 | 16 | 12 | 15 | 14 | 15 | 13 | 16 | 16 | 17 | 18 | 19 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 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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