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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 8 am Monday 11 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
17.9° 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 5PM is: 0.9m 10s primary swell from a Southeast direction and 0.7m 5s secondary swell from a Southeast direction (forecast issued at 08:00am May 11). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 May) | 2.5ft (0.7m) | 10s |
| Afternoon (11 May) | 3ft (0.9m) | 10s |
| Evening (11 May) | 2.5ft (0.7m) | 10s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 19°C on Mon morning, min 16°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 11 | Tuesday 12 | Wednesday 13 | Thu 14 | |||||||||||||||||||||
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 | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SE 6 | ESE 10 | ESE 10 | SE 10 | SE 10 | ESE 10 | 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 9 | ESE 10 | |
59 | 85 | 86 | 163 | 160 | 83 | 86 | 230 | 230 | 230 | 266 | 242 | 247 | 247 | 221 | 221 | 221 | 221 | 203 | 203 | 203 | 227 | 237 | 242 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-on | cross-on | cross-on | cross-on | on | glassy | glassy | glassy | cross-on | on | cross-on | cross-on | on | glassy | cross-off | glassy | cross-on | cross-on | cross-on | glassy | glassy | glassy | glassy | |
High Tide | 2:06PM1.15m | 2:29AM1.42m | 3:08PM1.24m | 3:00AM1.46m | 3:55PM1.32m | |||||||||||||||||||
Low Tide | 8:25AM0.68m | 7:56PM0.61m | 9:07AM0.53m | 8:50PM0.66m | 9:42AM0.40m | 9:32PM0.70m | ||||||||||||||||||
 | | | |  |  | | | | | | | | |  | |  | | | | | |  | | |
 | 4:48 | — | — | — | — | — | — | 4:47 | — | — | — | — | — | — | — | 4:46 | — | — | — | — | — | — | — | 4:45 |
 | — | — | — | — | 6:38 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:39 | — | — | 6:40 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 18 | 19 | 19 | 19 | 19 | 18 | 18 | 17 | 16 | 18 | 19 | 19 | 19 | 18 | 17 | 16 | 16 | 18 | 19 | 19 | 19 | 18 | 17 | 17 |
18 | 18 | 17 | 17 | 18 | 18 | 19 | 17 | 16 | 17 | 17 | 17 | 18 | 17 | 17 | 15 | 15 | 17 | 17 | 17 | 18 | 17 | 17 | 16 | |
Swell 1 Height (m) Direction Period (s) | SE 6 | SE 6 | ESE 10 | SE 10 | SE 10 | SE 6 | 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 9 | ESE 10 |
 kJ | 54 | 38 | 86 | 163 | 160 | 32 | 86 | 230 | 230 | 230 | 266 | 242 | 247 | 247 | 221 | 221 | 221 | 221 | 203 | 203 | 203 | 227 | 237 | 242 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | ESE 10 | — | — | — | ESE 10 | ESE 9 | — | — | — | — | — | — | — | — | — | S 9 | S 7 | S 7 | S 7 | S 6 | S 7 | S 7 | S 7 |
| kJ | 59 | 85 | — | — | — | 83 | 68 | — | — | — | — | — | — | — | — | — | 2 | 1 | 1 | 4 | 3 | 1 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 9 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Wind waves Height (m) Direction Period (s) | — | — | SE 5 | SE 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 28 | 29 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 6 | 208 | 208 | 208 | 208 | 65 | 2 | 2 | 2 | 13 | 85 | 85 | 104 | 2 | 2 | 2 | 2 | 13 | 104 | 104 | 6 | 2 | 2 | 2 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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