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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 2 am Friday 24 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
17.3° C
(Which is 1.8°C colder than average for this time of year)How big are the waves at Katahama today?
The current surf forecast for Katahama at 6AM is: 0.2m 12s primary swell from a East-southeast direction (forecast issued at 02:00am April 24). An open ocean swell of 1.4m 8s is not directed at the surf break, a second open ocean swell of 1.2m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 Apr) | 3.5ft (1.0m) | 7s |
| Afternoon (24 Apr) | 3.5ft (1.0m) | 7s |
| Evening (24 Apr) | 3ft (0.9m) | 8s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 37mm), heaviest during Sun night. Very mild (max 16°C on Sun morning, min 13°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 24 | Saturday 25 | Sunday 26 | ||||||||||||||||||||||
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 | 6 PM | 9 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
ENE 6 | E 10 | ESE 12 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | E 5 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | ESE 6 | ESE 6 | E 7 | E 6 | E 6 | ESE 6 | ESE 6 | ESE 7 | |
240 | 17 | 14 | 91 | 91 | 93 | 72 | 99 | 144 | 90 | 121 | 169 | 159 | 160 | 156 | 165 | 155 | 130 | 126 | 146 | 126 | 139 | 156 | 189 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-off | cross-off | cross-off | cross-off | cross | glassy | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross | |
High Tide | 11:33PM1.20m | 9:07AM1.15m | 1:12AM1.25m | 11:36AM1.05m | 2:08AM1.32m | 1:41PM1.10m | ||||||||||||||||||
Low Tide | 4:48AM1.02m | 5:10PM0.44m | 7:14AM0.94m | 6:41PM0.49m | 8:29AM0.78m | 7:56PM0.51m | ||||||||||||||||||
 |  |  | | |  | |  |  | |  | | | | | | | | | | | | | | |
 | — | 5:05 | — | — | — | — | — | — | — | 5:03 | — | — | — | — | — | — | — | 5:03 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:24 | — | — | — | — | — | — | — | 6:25 | — | — | — | — | — | — | — | 6:27 | — |
6 | 1 | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 14 | 14 | 14 | 15 | 15 | 14 | 14 | 15 | 14 | 14 | 13 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 15 | 16 | 16 | 16 | 15 |
9 | 12 | 12 | 14 | 14 | 12 | 13 | 14 | 13 | 12 | 9 | 9 | 11 | 11 | 10 | 11 | 11 | 10 | 10 | 11 | 12 | 13 | 14 | 14 | |
Swell 1 Height (m) Direction Period (s) | SSW 7 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SSW 8 | SW 8 | S 7 | S 7 | SSW 7 | SW 7 | S 7 | SE 6 | SE 11 | SE 11 | SE 13 | SE 13 | SE 13 |
 kJ | 18 | 187 | 261 | 302 | 249 | 180 | 138 | 118 | 68 | 80 | 53 | 52 | 21 | 16 | 8 | 5 | 2 | 1 | 38 | 5 | 5 | 7 | 7 | 7 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | E 7 | E 7 | E 7 | E 7 | E 8 | S 8 | S 8 | S 8 | S 7 | SE 12 | S 7 | SW 8 | SW 8 | SW 7 | SW 7 | SW 7 | SW 7 | SE 13 | SE 13 | SE 11 | E 14 | S 8 |
| kJ | 17 | 17 | 128 | 91 | 91 | 93 | 72 | 55 | 55 | 29 | 28 | 5 | 15 | 9 | 9 | 2 | 2 | 2 | 2 | 7 | 7 | 5 | 4 | 1 |
Swell 3 Height (m) Direction Period (s) | SE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | S 8 | S 8 | ESE 12 | SE 12 | SE 12 | SE 12 | — | SSW 8 | SE 11 | SE 11 | E 13 | SE 14 | SE 14 | SE 13 | E 11 | E 15 | — | — | — |
| kJ | 22 | 14 | 14 | 14 | 14 | 51 | 50 | 14 | 5 | 5 | 5 | — | 6 | 5 | 5 | 3 | 8 | 7 | 7 | 2 | 4 | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 6 | E 6 | — | ENE 7 | E 7 | E 7 | E 8 | E 8 | E 8 | E 5 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | ESE 6 | ESE 6 | E 7 | E 6 | E 6 | ESE 6 | ESE 6 | ESE 7 |
| kJ | 240 | 188 | — | 265 | 218 | 187 | 164 | 99 | 144 | 90 | 121 | 169 | 159 | 160 | 156 | 165 | 155 | 130 | 126 | 146 | 126 | 139 | 156 | 189 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 94 | 2 | 2 | 2 | 2 | 13 | 2 | 13 | 2 | 150 | 13 | 352 | 334 | 415 | 619 | 104 | 103 | 13 | 13 | 13 | 150 | 104 | 104 | 13 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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