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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 2 pm Saturday 25 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
18.1° C
(Which is 1.2°C colder than average for this time of year)How big are the waves at Katahama today?
The current surf forecast for Katahama at 5PM is: 1.6m 6s primary swell from a East direction and 0.3m 7s secondary swell from a South direction (forecast issued at 02:00pm April 25). An open ocean swell of 0.3m 8s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Apr) | - | - |
| Afternoon (25 Apr) | 5ft (1.6m) | 6s |
| Evening (25 Apr) | 5ft (1.5m) | 6s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 19mm), heaviest on Sun night. Very mild (max 18°C on Tue morning, min 13°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||||||
Sat 25 | Sunday 26 | Monday 27 | Tue 28 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
E 6 | E 6 | E 6 | E 6 | ESE 6 | ESE 7 | ESE 7 | ESE 6 | E 7 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | E 6 | ESE 6 | E 6 | ESE 6 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | E 7 | E 7 | E 7 | |
200 | 209 | 213 | 194 | 176 | 158 | 152 | 127 | 93 | 107 | 97 | 93 | 127 | 144 | 110 | 176 | 129 | 96 | 79 | 45 | 60 | 57 | 47 | 37 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-off | cross-off | glassy | on | on | cross-on | glassy | glassy | glassy | |
High Tide | 11:36AM1.05m | 2:08AM1.32m | 1:41PM1.10m | 2:45AM1.38m | 2:50PM1.20m | 3:14AM1.42m | ||||||||||||||||||
Low Tide | 6:41PM0.49m | 8:29AM0.78m | 7:56PM0.51m | 9:10AM0.63m | 8:52PM0.53m | |||||||||||||||||||
 |  | |  | |  |  | | | | |  |  | |  |  |  | | | | | | | | |
 | — | — | — | — | — | 5:03 | — | — | — | — | — | — | — | 5:01 | — | — | — | — | — | — | — | 5:01 | — | — |
 | — | — | 6:25 | — | — | — | — | — | — | — | 6:27 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | 6:28 |
— | — | — | — | — | — | — | — | — | — | — | — | 1 | 4 | 9 | 3 | 1 | 1 | — | — | — | — | — | — | |
Temp °C | 16 | 17 | 16 | 16 | 15 | 14 | 13 | 15 | 16 | 17 | 17 | 17 | 15 | 13 | 13 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 15 | 17 |
12 | 14 | 12 | 13 | 13 | 12 | 10 | 12 | 13 | 14 | 15 | 14 | 11 | 7 | 8 | 13 | 15 | 15 | 16 | 16 | 16 | 16 | 15 | 17 | |
Swell 1 Height (m) Direction Period (s) | SW 8 | S 7 | S 7 | SSW 7 | SSW 7 | SSW 7 | SW 7 | SE 13 | SE 6 | SW 6 | SW 6 | SW 6 | SE 13 | SE 13 | ESE 6 | SE 12 | ESE 6 | ESE 7 | ESE 7 | SSW 6 | SSW 6 | SSW 7 | SSW 6 | SSW 6 |
 kJ | 16 | 9 | 9 | 5 | 5 | 5 | 2 | 7 | 38 | 2 | 2 | 2 | 7 | 6 | 110 | 6 | 129 | 96 | 79 | 57 | 66 | 68 | 54 | 51 |
Swell 2 Height (m) Direction Period (s) | S 7 | SW 8 | SW 8 | SW 8 | SW 8 | E 14 | SE 13 | SE 11 | SE 13 | SE 13 | SE 13 | SE 13 | SW 7 | SW 7 | SE 13 | SW 7 | N 4 | S 6 | SW 7 | ESE 7 | SE 12 | E 7 | E 7 | E 7 |
| kJ | 9 | 9 | 2 | 2 | 2 | 4 | 7 | 5 | 7 | 7 | 7 | 7 | 2 | 2 | 6 | 2 | 1 | 16 | 21 | 45 | 6 | 57 | 47 | 37 |
Swell 3 Height (m) Direction Period (s) | SW 8 | — | SE 14 | — | SE 14 | E 16 | E 15 | SE 11 | SE 11 | SE 11 | SE 11 | — | — | SW 7 | SW 7 | N 5 | SW 7 | SW 7 | S 6 | SE 12 | S 15 | — | W 4 | — |
| kJ | 2 | — | 8 | — | 7 | 5 | 5 | 5 | 5 | 5 | 5 | — | — | 2 | 2 | 1 | 2 | 2 | 17 | 6 | 4 | — | 1 | — |
Wind waves Height (m) Direction Period (s) | E 6 | E 6 | E 6 | E 6 | ESE 6 | ESE 7 | ESE 7 | ESE 6 | E 7 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | E 6 | NNE 4 | E 6 | ENE 6 | NE 6 | E 6 | — | ESE 7 | — | — | — |
| kJ | 200 | 209 | 213 | 194 | 176 | 158 | 152 | 127 | 93 | 107 | 97 | 93 | 127 | 144 | 21 | 176 | 91 | 83 | 120 | — | 60 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 334 | 334 | 150 | 104 | 619 | 104 | 104 | 150 | 13 | 150 | 145 | 437 | 103 | 103 | 352 | 352 | 94 | 13 | 2 | 6 | 103 | 65 | 13 | 13 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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