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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 2 pm Wednesday 22 Apr 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
17.5° C
(Which is 1.6°C colder than average for this time of year)How big are the waves at Katahama today?
The current surf forecast for Katahama at 10PM is: 1.0m 7s primary swell from a East-southeast direction and 0.6m 10s secondary swell from a East direction (forecast issued at 02:00pm April 22). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Apr) | - | - |
| Afternoon (22 Apr) | 4ft (1.2m) | 7s |
| Evening (22 Apr) | 3.5ft (1.0m) | 7s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 33mm), heaviest during Thu afternoon. Very mild (max 19°C on Wed afternoon, min 13°C on Thu morning). Mainly fresh winds. | ||||||||||||||||||||||||
Wed 22 | Thursday 23 | Friday 24 | Sat 25 | |||||||||||||||||||||
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 | 6 AM | 9 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 8 | ESE 7 | ESE 7 | E 7 | E 5 | ENE 6 | E 6 | E 10 | E 9 | E 7 | S 9 | S 8 | E 8 | E 8 | E 8 | E 8 | E 5 | E 5 | |
181 | 153 | 131 | 111 | 84 | 84 | 81 | 76 | 57 | 78 | 87 | 173 | 132 | 16 | 16 | 58 | 57 | 69 | 78 | 98 | 100 | 105 | 53 | 77 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | glassy | glassy | glassy | glassy | glassy | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-on | cross-on | glassy | cross-on | cross-on | cross | cross-on | |
High Tide | 9:47PM1.22m | 8:04AM1.29m | 11:33PM1.20m | 9:07AM1.15m | 1:12AM1.25m | |||||||||||||||||||
Low Tide | 2:41PM0.23m | 2:48AM0.97m | 3:46PM0.34m | 4:48AM1.02m | 5:10PM0.44m | 7:14AM0.94m | ||||||||||||||||||
 |  | |  |  | | |  | | |  |  |  | | | | | | | | | | | | |
 | — | — | — | — | — | 5:05 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — | — | 5:03 | — | — |
 | — | — | 6:23 | — | — | — | — | — | — | — | 6:23 | — | — | — | — | — | — | — | 6:24 | — | — | — | — | 6:25 |
— | — | — | — | — | — | — | 1 | 3 | 5 | 11 | 9 | 3 | — | — | — | — | — | — | — | — | — | 1 | — | |
Temp °C | 19 | 19 | 19 | 18 | 17 | 17 | 17 | 15 | 13 | 14 | 14 | 13 | 13 | 13 | 14 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 |
17 | 18 | 19 | 18 | 17 | 16 | 16 | 13 | 11 | 11 | 9 | 7 | 10 | 11 | 12 | 14 | 16 | 14 | 14 | 15 | 14 | 15 | 13 | 12 | |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 8 | ESE 7 | ESE 7 | E 10 | SE 12 | E 10 | E 6 | SSW 8 | SSW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SSW 8 |
 kJ | 133 | 153 | 131 | 111 | 84 | 84 | 81 | 76 | 57 | 28 | 24 | 28 | 132 | 81 | 145 | 151 | 158 | 135 | 115 | 100 | 82 | 66 | 40 | 51 |
Swell 2 Height (m) Direction Period (s) | SE 13 | ESE 10 | E 10 | E 10 | E 10 | E 10 | ESE 10 | E 10 | E 10 | SE 12 | — | SE 12 | E 10 | E 10 | E 7 | E 7 | E 7 | E 7 | E 8 | S 8 | S 8 | S 8 | S 7 | SE 12 |
| kJ | 28 | 102 | 96 | 71 | 70 | 70 | 33 | 31 | 31 | 24 | — | 23 | 17 | 16 | 74 | 58 | 46 | 47 | 78 | 61 | 44 | 28 | 26 | 5 |
Swell 3 Height (m) Direction Period (s) | — | SE 13 | SE 13 | SE 13 | SE 13 | SE 13 | SE 13 | SE 13 | SE 12 | — | — | — | ESE 12 | ESE 12 | E 9 | S 9 | S 9 | S 8 | S 8 | SE 12 | ESE 12 | SE 12 | SE 12 | — |
| kJ | — | 28 | 27 | 27 | 27 | 26 | 26 | 26 | 25 | — | — | — | 14 | 14 | 16 | 40 | 57 | 69 | 48 | 5 | 14 | 5 | 5 | — |
Wind waves Height (m) Direction Period (s) | ESE 7 | — | — | — | — | — | — | — | — | E 7 | E 5 | ENE 6 | NNE 4 | E 6 | ENE 7 | — | ENE 7 | E 7 | — | E 8 | E 8 | E 8 | E 5 | E 5 |
| kJ | 181 | — | — | — | — | — | — | — | — | 78 | 87 | 173 | 32 | 119 | 222 | — | 143 | 146 | — | 98 | 100 | 105 | 53 | 77 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 208 | 355 | 6 | 2 | 2 | 6 | 6 | 13 | 13 | 150 | 150 | 94 | 13 | 13 | 2 | 2 | 2 | 6 | 104 | 2 | 13 | 2 | 334 | 334 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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