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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 2 am Tuesday 12 May 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
17.2° C
(Which is 3.3°C colder than average for this time of year)How big are the waves at Katahama today?
The current surf forecast for Katahama at 6AM is: 1.3m 9s primary swell from a Southeast direction (forecast issued at 02:00am May 12). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | 4.5ft (1.3m) | 9s |
| Afternoon (12 May) | 4.5ft (1.3m) | 9s |
| Evening (12 May) | 4ft (1.2m) | 9s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Wed night. Warm (max 21°C on Thu afternoon, min 16°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 12 | Wednesday 13 | Thursday 14 | ||||||||||||||||||||||
12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SE 8 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | |
86 | 230 | 263 | 260 | 266 | 266 | 242 | 242 | 216 | 216 | 211 | 194 | 203 | 242 | 293 | 277 | 289 | 295 | 253 | 253 | 240 | 240 | 282 | 282 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | glassy | glassy | on | on | cross-on | on | glassy | glassy | glassy | glassy | glassy | cross-on | cross-on | glassy | cross-off | cross-off | glassy | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 2:29AM1.42m | 3:08PM1.24m | 3:00AM1.46m | 3:55PM1.32m | 3:26AM1.49m | 4:35PM1.38m | ||||||||||||||||||
Low Tide | 9:07AM0.53m | 8:50PM0.66m | 9:42AM0.40m | 9:32PM0.70m | 10:12AM0.29m | |||||||||||||||||||
 | |  | | | | | |  |  |  |  | | | |  | | | | | | | | | |
 | — | 4:47 | — | — | — | — | — | — | — | 4:46 | — | — | — | — | — | — | — | 4:45 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:40 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | |
Temp °C | 18 | 18 | 17 | 19 | 19 | 19 | 19 | 18 | 17 | 16 | 16 | 18 | 20 | 20 | 19 | 18 | 18 | 18 | 18 | 20 | 20 | 21 | 20 | 19 |
18 | 19 | 17 | 19 | 17 | 17 | 18 | 18 | 17 | 16 | 16 | 18 | 19 | 18 | 18 | 17 | 18 | 18 | 18 | 19 | 18 | 20 | 19 | 19 | |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 |
 kJ | 86 | 230 | 263 | 260 | 266 | 266 | 242 | 242 | 216 | 216 | 211 | 194 | 203 | 242 | 293 | 277 | 289 | 295 | 253 | 253 | 240 | 240 | 282 | 282 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | — | — | — | — | — | — | — | S 10 | — | S 9 | S 7 | S 7 | S 7 | S 10 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | — | S 7 | SE 12 |
| kJ | 68 | — | — | — | — | — | — | — | 2 | — | 2 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | — | 1 | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 7 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNE 3 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 2 | 2 | 2 | 13 | 85 | 85 | 13 | 2 | 2 | 2 | 2 | 2 | 104 | 85 | 6 | 2 | 2 | 2 | 2 | 13 | 104 | 85 | 104 | 150 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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