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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 2 am Friday 22 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
20.3° C
(Which is 1.1°C colder than average for this time of year)How big are the waves at Katahama today?
The current surf forecast for Katahama at 9AM is: 1.2m 6s primary swell from a East direction and 0.4m 10s secondary swell from a East-southeast direction (forecast issued at 02:00am May 22). An open ocean swell of 1.7m 8s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 May) | 4ft (1.2m) | 6s |
| Afternoon (22 May) | 3.5ft (1.0m) | 6s |
| Evening (22 May) | - | - |
Table - waves today at Katahama. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 3mm), mostly falling on Sat night. Warm (max 21°C on Sun afternoon, min 15°C on Fri night). Winds decreasing (fresh winds from the ENE on Fri night, light winds from the ENE by Sun night). | ||||||||||||||||||||||||
Friday 22 | Saturday 23 | Sunday 24 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
E 10 | E 5 | E 5 | E 6 | E 6 | E 6 | E 7 | E 8 | E 8 | E 9 | E 9 | E 7 | E 7 | E 7 | E 6 | E 6 | E 6 | E 6 | E 6 | E 7 | ESE 7 | ESE 7 | ESE 8 | ESE 8 | |
192 | 60 | 61 | 89 | 82 | 66 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 373 | 290 | 264 | 239 | 225 | 220 | 247 | 259 | 208 | 191 | 170 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross-on | on | cross-on | cross-on | |
High Tide | 9:27PM1.38m | 7:59AM1.32m | 10:34PM1.36m | 9:10AM1.19m | 11:45PM1.37m | 11:03AM1.10m | ||||||||||||||||||
Low Tide | 3:01AM0.98m | 3:17PM0.34m | 4:32AM0.95m | 4:21PM0.47m | 6:08AM0.87m | 5:34PM0.58m | ||||||||||||||||||
 | |  | |  | | |  |  | | |  | | | | | |  | | | | | | | |
 | — | 4:39 | — | — | — | — | — | — | — | 4:39 | — | — | — | — | — | — | — | 4:39 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:47 | — | — | — | — | — | — | — | 6:49 | — |
13 | 16 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | |
Temp °C | 19 | 17 | 17 | 17 | 18 | 19 | 18 | 16 | 15 | 15 | 15 | 15 | 16 | 18 | 19 | 18 | 17 | 17 | 17 | 19 | 20 | 21 | 20 | 20 |
19 | 15 | 14 | 14 | 16 | 16 | 14 | 10 | 9 | 10 | 10 | 10 | 11 | 14 | 16 | 14 | 13 | 14 | 14 | 17 | 18 | 20 | 19 | 20 | |
Swell 1 Height (m) Direction Period (s) | SSW 8 | SSW 8 | SSW 8 | SW 8 | SW 8 | SSW 8 | SW 8 | SW 8 | SW 7 | SSW 7 | SSW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 6 | SE 7 | — | E 9 | ESE 8 | ESE 8 |
 kJ | 493 | 403 | 425 | 362 | 242 | 187 | 129 | 82 | 54 | 34 | 19 | 12 | 12 | 2 | 2 | 2 | 2 | 2 | 2 | 65 | — | 43 | 191 | 170 |
Swell 2 Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | — | — | — | — | — | — | — | S 6 | — | — | — | — | — | — | — | — | E 10 | E 10 |
| kJ | 54 | 54 | 54 | 37 | 52 | 31 | — | — | — | — | — | — | — | 3 | — | — | — | — | — | — | — | — | 47 | 29 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 10 | E 5 | E 5 | E 6 | E 6 | E 6 | E 7 | E 8 | E 8 | E 9 | E 9 | E 7 | E 7 | E 7 | E 6 | E 6 | E 6 | E 6 | E 6 | E 7 | ESE 7 | ESE 7 | — | — |
| kJ | 192 | 60 | 61 | 89 | 82 | 66 | 208 | 391 | 465 | 487 | 554 | 434 | 377 | 373 | 290 | 264 | 239 | 225 | 220 | 247 | 259 | 208 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 94 | 13 | 13 | 13 | 13 | 13 | 373 | 351 | 373 | 415 | 415 | 661 | 661 | 747 | 150 | 104 | 103 | 103 | 13 | 13 | 104 | 104 | 103 | 103 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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