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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 2 am Tuesday 19 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
19.6° C
(Which is 1.5°C colder than average for this time of year)How big are the waves at Katahama today?
The current surf forecast for Katahama at 5AM is: 0.7m 9s primary swell from a East-southeast direction and 0.4m 10s secondary swell from a Southeast direction (forecast issued at 02:00am May 19). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | 1.5ft (0.5m) | 11s |
| Afternoon (19 May) | 2ft (0.6m) | 11s |
| Evening (19 May) | 2ft (0.6m) | 10s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 60mm), heaviest during Thu afternoon. Warm (max 23°C on Tue morning, min 16°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||||||
Tuesday 19 | Wednesday 20 | Thursday 21 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
ESE 9 | ESE 8 | ESE 9 | SE 11 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | |
86 | 72 | 80 | 55 | 73 | 73 | 72 | 69 | 89 | 120 | 148 | 145 | 163 | 125 | 122 | 120 | 115 | 103 | 103 | 78 | 80 | 80 | 54 | 54 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross | glassy | cross-off | glassy | cross-on | cross-off | cross | cross-off | cross-off | |
High Tide | 5:47AM1.59m | 7:42PM1.43m | 6:25AM1.53m | 8:30PM1.40m | 7:08AM1.44m | |||||||||||||||||||
Low Tide | 00:11AM0.90m | 12:51PM0.07m | 00:54AM0.93m | 1:34PM0.12m | 1:49AM0.96m | 2:22PM0.22m | ||||||||||||||||||
 | |  | | | |  |  | | | | |  | | |  | | |  |  |  | |  | | |
 | — | 4:41 | — | — | — | — | — | — | — | 4:41 | — | — | — | — | — | — | — | 4:39 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:46 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 1 | 7 | 13 | 19 | 4 | 4 | |
Temp °C | 20 | 20 | 19 | 22 | 23 | 23 | 22 | 21 | 20 | 20 | 20 | 23 | 22 | 21 | 22 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 20 |
20 | 20 | 19 | 21 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 23 | 21 | 21 | 23 | 23 | 24 | 24 | 25 | 23 | 21 | 19 | 21 | 22 | |
Swell 1 Height (m) Direction Period (s) | ESE 9 | ESE 8 | ESE 9 | E 8 | E 9 | E 9 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | S 6 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 |
 kJ | 86 | 72 | 80 | 52 | 60 | 63 | 72 | 69 | 89 | 120 | 148 | 145 | 163 | 125 | 122 | 120 | 115 | 103 | 78 | 78 | 80 | 80 | 54 | 54 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | SE 11 | SE 11 | SE 11 | E 9 | E 9 | E 9 | E 10 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 6 | S 5 | ESE 10 | — | — | — | — | ESE 10 |
| kJ | 17 | 17 | 39 | 55 | 73 | 73 | 41 | 42 | 42 | 54 | 1 | 1 | 1 | 4 | 3 | 14 | 13 | 25 | 103 | — | — | — | — | 54 |
Swell 3 Height (m) Direction Period (s) | — | — | — | ESE 10 | — | — | — | — | — | — | S 8 | S 8 | S 8 | S 7 | — | S 6 | S 6 | — | — | — | — | — | — | — |
| kJ | — | — | — | 20 | — | — | — | — | — | — | 1 | 1 | 1 | 4 | — | 3 | 3 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SW 2 | SW 3 | SSW 3 | SW 3 | SSW 3 | SW 3 | SW 3 | SSW 4 | — | SSW 3 | SSW 3 | S 6 | S 4 | — | SW 6 | SSW 6 | SSW 7 | SSW 7 | SW 8 | SW 8 |
| kJ | — | — | — | — | 1 | 3 | 4 | 2 | 2 | 1 | 1 | 5 | — | 4 | 4 | 20 | 12 | — | 75 | 134 | 268 | 389 | 724 | 794 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 6 | 6 | 6 | 6 | 382 | 382 | 355 | 2 | 2 | 2 | 2 | 6 | 236 | 65 | 6 | 6 | 6 | 2 | 2 | 6 | 65 | 161 | 65 | 2 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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