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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 8 pm Wednesday 06 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
18.3° 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 4AM is: 0.7m 6s primary swell from a East-southeast direction and 0.4m 9s secondary swell from a East-southeast direction (forecast issued at 08:00pm May 06). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (07 May) | 2.5ft (0.7m) | 6s |
| Afternoon (07 May) | 3.5ft (1.0m) | 7s |
| Evening (07 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 22°C on Fri morning, min 14°C on Fri night). Winds increasing (calm on Thu morning, strong winds from the W by Fri night). | ||||||||||||||||||||||||
Wed 6 | Thursday 7 | Friday 8 | Saturday 9 | |||||||||||||||||||||
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 | 6 AM | 9 AM | 12 PM | 3 PM | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
SE 6 | SE 6 | SE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 10 | SSE 7 | SSE 7 | S 7 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SE 10 | SSW 6 | ESE 10 | S 7 | ESE 11 | ESE 10 | SE 10 | SE 10 | SE 10 | |
42 | 42 | 34 | 34 | 35 | 34 | 54 | 96 | 105 | 111 | 68 | 68 | 90 | 90 | 92 | 106 | 94 | 101 | 94 | 75 | 73 | 53 | 51 | 52 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross-on | cross | cross-off | cross-off | glassy | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 9:05PM1.32m | 7:35AM1.37m | 10:19PM1.28m | 8:30AM1.23m | 11:48PM1.29m | 10:06AM1.10m | ||||||||||||||||||
Low Tide | 2:17AM0.96m | 2:59PM0.28m | 3:47AM1.00m | 4:06PM0.40m | 5:46AM0.96m | |||||||||||||||||||
 |  | | |  | | |  | |  |  | | | | | | | | | | | | | | |
 | — | — | — | 4:50 | — | — | — | — | — | — | — | 4:50 | — | — | — | — | — | — | — | 4:50 | — | — | — | — |
 | 6:35 | — | — | — | — | — | — | — | 6:36 | — | — | — | — | — | — | — | 6:36 | — | — | — | — | — | — | 6:37 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 17 | 17 | 17 | 17 | 18 | 21 | 21 | 20 | 19 | 19 | 18 | 18 | 21 | 22 | 21 | 21 | 18 | 16 | 15 | 14 | 17 | 21 | 22 |
17 | 17 | 17 | 17 | 16 | 19 | 20 | 18 | 18 | 17 | 18 | 18 | 19 | 21 | 20 | 18 | 18 | 12 | 7 | 6 | 5 | 11 | 14 | 14 | |
Swell 1 Height (m) Direction Period (s) | SE 6 | SE 6 | SE 6 | ESE 6 | ESE 6 | ESE 6 | SE 6 | SSE 7 | SSE 7 | S 7 | SSW 6 | SE 7 | SSW 6 | ESE 10 | ESE 10 | SE 10 | ESE 10 | S 6 | S 7 | S 7 | ESE 10 | SE 10 | SE 10 | SE 10 |
 kJ | 42 | 42 | 34 | 34 | 35 | 34 | 51 | 96 | 105 | 111 | 44 | 36 | 33 | 90 | 92 | 106 | 94 | 101 | 94 | 100 | 73 | 53 | 51 | 52 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SE 7 | ESE 10 | ESE 10 | SSE 6 | SSE 6 | — | — | ESE 10 | ESE 11 | ESE 11 | — | — | — | — |
| kJ | 33 | 32 | 32 | 32 | 33 | 32 | 54 | 56 | 67 | 67 | 47 | 68 | 90 | 22 | 20 | — | — | 97 | 75 | 75 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SW 6 | SW 5 | W 7 | S 5 | S 5 | S 7 | — | — | — | — | ESE 10 | — | SSE 7 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | 1 | 1 | 5 | 5 | 23 | — | — | — | — | 68 | — | 29 | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | SW 3 | SW 4 | W 4 | W 3 | SSW 6 | SW 6 | SSW 6 | SW 4 | SSW 6 | SSW 6 | WSW 5 | W 6 | WNW 6 | W 6 | W 7 | W 7 | W 6 |
| kJ | — | — | — | — | — | — | — | 4 | 22 | 7 | 3 | 44 | 30 | 22 | 10 | 50 | 81 | 84 | 200 | 257 | 392 | 467 | 378 | 275 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 13 | 13 | 13 | 13 | 13 | 6 | 6 | 105 | 212 | 6 | 6 | 2 | 2 | 6 | 334 | 352 | 6 | 351 | 351 | 103 | 103 | 103 | 104 | 104 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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