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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 8 am Sunday 10 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
18.4° C
(Which is 2.0°C colder than average for this time of year)How big are the waves at Katahama today?
The current surf forecast for Katahama at 3PM is: 0.7m 10s primary swell from a East-southeast direction and 0.6m 4s secondary swell from a East direction (forecast issued at 08:00am May 10). An open ocean swell of 0.2m 4s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 May) | 2ft (0.6m) | 10s |
| Afternoon (10 May) | 2.5ft (0.7m) | 10s |
| Evening (10 May) | 3.5ft (1.1m) | 7s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 20°C on Sun morning, min 15°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 10 | Monday 11 | Tuesday 12 | Wed 13 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 7 | ESE 7 | SE 6 | SE 6 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | ESE 9 | ESE 9 | |
68 | 65 | 85 | 81 | 76 | 114 | 96 | 83 | 69 | 64 | 86 | 86 | 83 | 113 | 225 | 230 | 230 | 230 | 237 | 242 | 242 | 190 | 226 | 226 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross | cross-on | on | cross-on | cross | cross | glassy | glassy | on | on | cross-on | cross-on | on | glassy | glassy | glassy | on | on | on | on | glassy | cross-on | cross-off | |
High Tide | 12:32PM1.07m | 1:51AM1.38m | 2:06PM1.15m | 2:29AM1.42m | 3:08PM1.24m | 3:00AM1.46m | ||||||||||||||||||
Low Tide | 7:25AM0.83m | 6:47PM0.57m | 8:25AM0.68m | 7:56PM0.61m | 9:07AM0.53m | 8:50PM0.66m | ||||||||||||||||||
 | | | | |  | | | |  | | | | | | | | | | | | | | | |
 | 4:48 | — | — | — | — | — | — | 4:48 | — | — | — | — | — | — | — | 4:47 | — | — | — | — | — | — | — | 4:46 |
 | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:38 | — | — | — | — | — | — | — | 6:39 | — | — | 6:39 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 15 | 18 | 20 | 19 | 18 | 18 | 17 | 18 | 17 | 19 | 19 | 19 | 19 | 18 | 18 | 17 | 16 | 18 | 19 | 19 | 18 | 18 | 17 | 16 |
12 | 16 | 18 | 16 | 15 | 15 | 15 | 18 | 17 | 17 | 18 | 16 | 18 | 17 | 18 | 17 | 16 | 17 | 17 | 17 | 17 | 18 | 16 | 15 | |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 7 | ESE 7 | ESE 6 | ESE 6 | SE 6 | SE 5 | SE 5 | SE 6 | ESE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | ESE 9 | ESE 9 |
 kJ | 68 | 65 | 85 | 81 | 76 | 114 | 96 | 60 | 59 | 44 | 35 | 30 | 33 | 113 | 225 | 230 | 230 | 230 | 237 | 242 | 242 | 190 | 226 | 226 |
Swell 2 Height (m) Direction Period (s) | W 5 | W 4 | W 4 | W 4 | S 6 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SSE 8 | — | — | — | — | — | — | — | — | — | — |
| kJ | 10 | 6 | 3 | 1 | 1 | 49 | 49 | 71 | 59 | 64 | 86 | 86 | 83 | 44 | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | S 6 | S 6 | S 6 | S 6 | — | SW 5 | — | SE 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | 3 | 1 | 1 | — | 1 | — | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | ENE 3 | ENE 3 | E 4 | ESE 5 | — | — | SE 6 | SE 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 1 | 3 | 10 | 43 | — | — | 83 | 69 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 13 | 13 | 13 | 334 | 355 | 13 | 13 | 6 | 6 | 13 | 208 | 208 | 208 | 208 | 2 | 2 | 2 | 13 | 104 | 104 | 104 | 2 | 13 | 2 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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