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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 8 pm Tuesday 03 Mar 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
15.2° C
(Which is 1.9°C colder than average for this time of year)How big are the waves at Katahama today?
The current surf forecast for Katahama at 3AM is: 2.5m 9s primary swell from a Southeast direction and 0.1m 15s secondary swell from a East direction (forecast issued at 08:00pm March 03). An open ocean swell of 1.0m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Mar) | 6ft (1.8m) | 9s |
| Afternoon (04 Mar) | 4.5ft (1.4m) | 9s |
| Evening (04 Mar) | 3.5ft (1.0m) | 9s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tue 03 | Wednesday 04 | Thursday 05 | Friday 06 | |||||||||||||||||||||
| 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 | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 13 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 121 | 632 | 885 | 1058 | 537 | 513 | 354 | 275 | 211 | 168 | 154 | 99 | 103 | 80 | 61 | 61 | 45 | 26 | 25 | 24 | 16 | 28 | 27 | 26 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- off | cross- off | cross- off | off | glass | off | off | off | off | off | off | off | glass | glass | glass | cross | cross- off | cross- off | cross- off | cross | cross- on | on |
High Tide / height (m) | 5:07PM 1.45 | 5:49AM 1.49 | 5:42PM 1.48 | 6:11AM 1.52 | 6:18PM 1.49 | 6:34AM 1.55 | ||||||||||||||||||
Low Tide / height (m) | 11:35PM 0.19 | 11:53AM 0.44 | 12:00AM 0.23 | 12:21PM 0.34 | 12:27AM 0.29 | 12:52PM 0.27 | ||||||||||||||||||
Tue 03 | Wednesday 04 | Thursday 05 | Friday 06 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:13 | - | - | - | - | - | - | - | 6:11 | - | - | - | - | - | - | - | 6:11 | - | - |
| Sunset | - | - | - | - | - | - | - | 5:44 | - | - | - | - | - | - | - | 5:45 | - | - | - | - | - | - | - | 5:45 |
 |  | | |  |  |  | |  | | | | | | | | | | | | | |  | | |
Rain (mm) | - | 2 | 3 | 3 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 10 | 10 | 9 | 10 | 10 | 11 | 14 | 15 | 12 | 9 | 8 | 6 | 5 | 7 | 12 | 14 | 13 | 12 | 10 | 9 | 9 | 10 | 11 | 12 |
| Feels °C (?) | 0 | 1 | 5 | 8 | 8 | 9 | 12 | 10 | 3 | 1 | 2 | 0 | 0 | 2 | 9 | 11 | 10 | 9 | 7 | 6 | 6 | 7 | 8 | 9 |
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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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