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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 8 am Friday 01 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
17.8° C
(Which is 1.9°C colder than average for this time of year)How big are the waves at Katahama today?
The current surf forecast for Katahama at 1PM is: 1.7m 8s primary swell from a East-southeast direction (forecast issued at 08:00am May 01). An open ocean swell of 3.0m 9s is not directed at the surf break. The wind direction is predicted to be glassy and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 May) | 5.5ft (1.7m) | 8s |
| Afternoon (01 May) | 5ft (1.6m) | 9s |
| Evening (01 May) | 3.5ft (1.1m) | 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 64mm), heaviest during Sun night. Warm (max 24°C on Sat afternoon, min 14°C on Fri night). Winds decreasing (strong winds from the W on Fri night, calm by Sat night). | ||||||||||||||||||||||||
Friday 1 | Saturday 2 | Sunday 3 | Mon 4 | |||||||||||||||||||||
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 | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ESE 7 | SE 8 | ESE 8 | SE 9 | SE 9 | SE 8 | SE 9 | ESE 9 | ESE 10 | ESE 10 | SE 10 | SE 11 | SE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | SSW 6 | SSW 6 | SSW 6 | ESE 9 | |
512 | 361 | 433 | 402 | 320 | 181 | 91 | 54 | 35 | 37 | 17 | 18 | 16 | 33 | 32 | 49 | 52 | 52 | 51 | 50 | 50 | 63 | 107 | 49 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | glassy | on | cross-on | cross | cross | cross | cross | cross | |
High Tide | 4:23AM1.53m | 5:28PM1.44m | 4:47AM1.57m | 6:03PM1.45m | 5:13AM1.59m | 6:40PM1.44m | ||||||||||||||||||
Low Tide | 11:04AM0.16m | 11:01PM0.69m | 11:32AM0.09m | 11:28PM0.74m | 12:03PM0.05m | 11:59PM0.79m | ||||||||||||||||||
 |  | |  |  |  |  | |  | | | | | | | | | | | | |  | |  | |
 | 4:56 | — | — | — | — | — | — | 4:56 | — | — | — | — | — | — | — | 4:54 | — | — | — | — | — | — | — | 4:54 |
 | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:31 | — | — | 6:32 |
9 | 17 | 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 18 | |
Temp °C | 15 | 16 | 16 | 18 | 16 | 14 | 14 | 15 | 14 | 18 | 22 | 24 | 22 | 19 | 18 | 18 | 17 | 19 | 20 | 21 | 20 | 19 | 18 | 19 |
10 | 13 | 16 | 15 | 9 | 5 | 5 | 6 | 6 | 11 | 15 | 17 | 16 | 15 | 16 | 16 | 16 | 18 | 19 | 19 | 18 | 17 | 16 | 16 | |
Swell 1 Height (m) Direction Period (s) | NNE 5 | SE 8 | SSW 9 | SE 9 | SE 9 | SE 8 | SE 9 | ESE 9 | ESE 10 | ESE 10 | SE 10 | ESE 8 | ESE 9 | ESE 9 | SW 7 | SW 7 | SW 6 | SW 6 | SW 6 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 |
 kJ | 8 | 361 | 1604 | 402 | 320 | 181 | 91 | 54 | 35 | 37 | 17 | 14 | 16 | 33 | 147 | 99 | 56 | 36 | 23 | 50 | 50 | 50 | 50 | 49 |
Swell 2 Height (m) Direction Period (s) | — | E 9 | ESE 8 | — | — | — | — | — | ESE 9 | E 9 | E 9 | SE 11 | SE 10 | — | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | S 7 | S 6 | — | — | — |
| kJ | — | 247 | 433 | — | — | — | — | — | 16 | 14 | 15 | 18 | 16 | — | 32 | 49 | 52 | 52 | 51 | 1 | 1 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 7 | S 7 | S 6 | S 6 | S 6 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 3 | 3 | 3 | 1 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ESE 7 | SSW 7 | SSW 9 | SSW 9 | SW 9 | SW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 9 | WSW 6 | WSW 6 | WSW 6 | WNW 4 | NW 4 | — | — | — | SW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 |
| kJ | 512 | 247 | 1884 | 1462 | 1283 | 1814 | 2210 | 2568 | 1974 | 1150 | 994 | 381 | 286 | 171 | 12 | 4 | — | — | — | 35 | 40 | 63 | 107 | 197 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 103 | 13 | 103 | 2682 | 351 | 351 | 351 | 334 | 103 | 127 | 397 | 104 | 94 | 2 | 2 | 2 | 2 | 13 | 65 | 827 | 827 | 658 | 619 | 619 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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