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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 8 pm Wednesday 29 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
17.9° C
(Which is 1.7°C colder than average for this time of year)How big are the waves at Katahama today?
The current surf forecast for Katahama at 3AM is: 1.2m 5s primary swell from a East direction (forecast issued at 08:00pm April 29). An open ocean swell of 0.5m 6s is not directed at the surf break, a second open ocean swell of 0.5m 5s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Apr) | 6ft (1.8m) | 7s |
| Afternoon (30 Apr) | 6ft (1.9m) | 6s |
| Evening (30 Apr) | 5ft (1.6m) | 6s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 63mm), heaviest during Thu night. Warm (max 21°C on Sat morning, min 12°C on Thu afternoon). Mainly strong winds. | ||||||||||||||||||||||||
Wed 29 | Thursday 30 | Friday 1 | Saturday 2 | |||||||||||||||||||||
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 |   |    |    |    | ||||||||||||||||||||
E 9 | E 9 | SW 6 | E 5 | S 12 | E 7 | E 6 | E 6 | E 6 | E 6 | E 6 | ESE 7 | ESE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 9 | ESE 9 | SE 10 | ESE 10 | SE 10 | ESE 9 | |
14 | 14 | 0 | 68 | 3 | 277 | 300 | 291 | 212 | 190 | 176 | 342 | 644 | 681 | 253 | 346 | 283 | 177 | 91 | 53 | 17 | 36 | 16 | 26 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | |
High Tide | 4:19PM1.36m | 4:01AM1.49m | 4:54PM1.41m | 4:23AM1.53m | 5:28PM1.44m | 4:47AM1.57m | ||||||||||||||||||
Low Tide | 10:07PM0.60m | 10:37AM0.26m | 10:35PM0.65m | 11:04AM0.16m | 11:01PM0.69m | 11:32AM0.09m | ||||||||||||||||||
 |  | | | |  | | | |  | |  |  | | | |  |  |  | | | | | | |
 | — | — | — | 4:58 | — | — | — | — | — | — | — | 4:56 | — | — | — | — | — | — | — | 4:56 | — | — | — | — |
 | 6:29 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | 6:31 |
— | — | — | — | — | 1 | 4 | 2 | 3 | 6 | 10 | 13 | 19 | 4 | 1 | — | — | — | — | — | — | — | — | — | |
Temp °C | 20 | 18 | 17 | 15 | 15 | 14 | 13 | 13 | 12 | 12 | 13 | 13 | 15 | 15 | 16 | 16 | 17 | 15 | 13 | 14 | 14 | 18 | 21 | 21 |
14 | 14 | 16 | 12 | 11 | 10 | 10 | 9 | 7 | 7 | 7 | 7 | 10 | 12 | 15 | 16 | 11 | 8 | 5 | 6 | 9 | 14 | 19 | 20 | |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 5 | SW 5 | SE 8 | — | ESE 8 | SE 8 | SSW 8 | SE 8 | SE 8 | SE 8 | SE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 8 | ESE 9 |
 kJ | 14 | 14 | 25 | 16 | 12 | 9 | 5 | 1 | 1 | 1 | 41 | — | 644 | 681 | 441 | 346 | 283 | 177 | 91 | 53 | 16 | 36 | 14 | 26 |
Swell 2 Height (m) Direction Period (s) | SE 11 | SE 11 | WNW 5 | W 5 | W 5 | — | S 12 | S 13 | — | — | — | — | — | NNE 4 | SE 8 | — | — | E 9 | — | ESE 9 | SE 10 | SE 10 | SE 10 | ESE 11 |
| kJ | 5 | 5 | 12 | 12 | 4 | — | 3 | 3 | — | — | — | — | — | 10 | 253 | — | — | 42 | — | 26 | 17 | 17 | 16 | 11 |
Swell 3 Height (m) Direction Period (s) | S 13 | S 13 | WSW 5 | SE 8 | S 12 | S 12 | — | — | — | — | — | — | — | — | E 8 | — | — | — | — | — | — | — | — | — |
| kJ | 3 | 3 | 8 | 3 | 3 | 3 | — | — | — | — | — | — | — | — | 165 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 6 | WSW 5 | — | E 5 | E 6 | E 7 | E 6 | E 6 | E 6 | E 6 | E 6 | ESE 7 | — | SSW 7 | NE 4 | SSW 8 | SW 9 | SW 9 | SW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 8 |
| kJ | 84 | 87 | — | 68 | 245 | 277 | 300 | 291 | 212 | 190 | 176 | 342 | — | 340 | 4 | 903 | 1182 | 1405 | 1588 | 1781 | 1757 | 1175 | 908 | 614 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 104 | 104 | 1025 | 1025 | 1025 | 2682 | 13 | 352 | 430 | 674 | 104 | 355 | 334 | 103 | 13 | 2 | 127 | 351 | 103 | 103 | 103 | 148 | 105 | 437 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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