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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 8 am Sunday 17 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
19.1° 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 3PM is: 0.8m 9s primary swell from a East-southeast direction and 0.3m 11s secondary swell from a Southeast direction (forecast issued at 08:00am May 17). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 2.5ft (0.7m) | 7s |
| Afternoon (17 May) | 2.5ft (0.8m) | 9s |
| Evening (17 May) | 3ft (0.9m) | 9s |
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 Sun morning, min 19°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 17 | Monday 18 | Tuesday 19 | Wed 20 | |||||||||||||||||||||
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 7 | ESE 7 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 9 | SE 11 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | |
34 | 48 | 90 | 88 | 92 | 111 | 106 | 111 | 131 | 103 | 103 | 96 | 101 | 80 | 88 | 72 | 79 | 71 | 73 | 73 | 72 | 89 | 89 | 98 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | glassy | cross-on | cross-on | cross-on | glassy | cross-off | glassy | glassy | glassy | cross-on | cross-on | cross | cross-off | glassy | glassy | glassy | cross-on | cross-on | cross | cross | cross-off | cross-off | glassy | |
High Tide | 4:43AM1.59m | 6:21PM1.45m | 5:14AM1.60m | 6:59PM1.44m | 5:47AM1.59m | 7:42PM1.43m | ||||||||||||||||||
Low Tide | 11:40AM0.06m | 11:35PM0.87m | 12:14PM0.05m | 00:11AM0.90m | 12:51PM0.07m | 00:54AM0.93m | ||||||||||||||||||
 | | | | |  | | | | | | | | | | | |  | | | |  |  | | |
 | 4:43 | — | — | — | — | — | — | 4:41 | — | — | — | — | — | — | — | 4:41 | — | — | — | — | — | — | — | 4:41 |
 | — | — | — | — | 6:44 | — | — | — | — | — | — | — | 6:44 | — | — | — | — | — | — | — | 6:45 | — | — | 6:45 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 20 | 22 | 22 | 21 | 21 | 20 | 20 | 19 | 22 | 22 | 22 | 22 | 21 | 20 | 19 | 19 | 21 | 22 | 22 | 22 | 21 | 20 | 20 |
17 | 20 | 21 | 20 | 21 | 21 | 20 | 21 | 19 | 22 | 20 | 20 | 21 | 21 | 20 | 19 | 19 | 21 | 21 | 21 | 22 | 22 | 21 | 22 | |
Swell 1 Height (m) Direction Period (s) | ESE 7 | ESE 7 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 9 | SE 11 | E 9 | E 9 | SE 11 | SE 10 | SE 10 | SE 10 |
 kJ | 34 | 48 | 90 | 88 | 92 | 111 | 106 | 111 | 131 | 103 | 103 | 96 | 101 | 80 | 88 | 72 | 79 | 71 | 59 | 61 | 72 | 89 | 89 | 98 |
Swell 2 Height (m) Direction Period (s) | ESE 10 | ESE 9 | SE 11 | SE 11 | SE 11 | W 6 | SE 12 | SE 12 | S 7 | SE 7 | SSE 8 | SSE 7 | SSE 7 | SSE 7 | SE 10 | SE 10 | SE 10 | E 8 | SE 11 | SE 11 | E 9 | E 9 | E 9 | E 10 |
| kJ | 30 | 29 | 18 | 19 | 5 | 1 | 6 | 6 | 1 | 2 | 6 | 5 | 5 | 10 | 17 | 17 | 38 | 33 | 73 | 73 | 59 | 42 | 42 | 54 |
Swell 3 Height (m) Direction Period (s) | SSE 10 | SE 11 | SE 14 | — | — | — | S 8 | SE 7 | — | — | — | — | SE 10 | SE 10 | — | — | — | ESE 10 | — | — | — | S 8 | S 8 | S 8 |
| kJ | 10 | 18 | 7 | — | — | — | 1 | 2 | — | — | — | — | 17 | 16 | — | — | — | 19 | — | — | — | 1 | 1 | 1 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | SSW 2 | — | — | — | — | — | — | — | SSW 2 | — | — | WSW 2 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | 1 | — | — | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 6 | 6 | 65 | 148 | 65 | 13 | 6 | 6 | 6 | 6 | 208 | 6 | 6 | 6 | 6 | 6 | 6 | 65 | 65 | 6 | 6 | 2 | 2 | 2 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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