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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 8 pm Thursday 28 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
20.0° C
(Which is 2.0°C colder than average for this time of year)How big are the waves at Katahama today (29 May):
- Morning surf: Morning surf (29 May, local time) - 2ft (0.6m), 10s period with E swell.
- Afternoon surf: Afternoon surf (29 May, local time) - 2ft (0.6m), 10s period with E swell.
- Evening surf: Evening surf (29 May, local time) - 2ft (0.6m), 10s period with E swell.
The current surf forecast for Katahama at 12AM is: 0.7m 9s primary swell from a East direction and 0.2m 12s secondary swell from a East-southeast direction (forecast issued at 08:00pm May 28). An open ocean swell of 1.8m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 May) | 2ft (0.6m) | 10s |
| Afternoon (29 May) | 2ft (0.6m) | 10s |
| Evening (29 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 ForecastSome drizzle, heaviest during Fri night. Warm (max 30°C on Fri afternoon, min 20°C on Sat night). Winds decreasing (fresh winds from the W on Fri afternoon, calm by Fri night). | ||||||||||||||||||||||||
Thu 28 | Friday 29 | Saturday 30 | Sunday 31 | |||||||||||||||||||||
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 |   |    |    |    | ||||||||||||||||||||
S 7 | ESE 8 | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 6 | E 7 | E 11 | E 11 | E 11 | E 11 | E 10 | E 10 | E 10 | S 15 | S 14 | ESE 10 | |
86 | 73 | 73 | 90 | 67 | 68 | 67 | 67 | 67 | 67 | 67 | 65 | 158 | 107 | 85 | 85 | 112 | 110 | 106 | 104 | 102 | 150 | 253 | 104 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross | cross | cross-on | glassy | glassy | cross | cross | cross | cross-off | glassy | cross-off | cross-off | glassy | cross-on | cross | |
High Tide | 4:14PM1.34m | 3:17AM1.52m | 4:54PM1.39m | 3:45AM1.55m | 5:30PM1.43m | 4:15AM1.58m | ||||||||||||||||||
Low Tide | 9:33PM0.86m | 10:16AM0.24m | 10:09PM0.90m | 10:47AM0.16m | 10:41PM0.94m | 11:19AM0.10m | ||||||||||||||||||
 |  | | |  | | | | | |  |  | | | | | |  | | | | | | | |
 | — | — | — | 4:35 | — | — | — | — | — | — | — | 4:35 | — | — | — | — | — | — | — | 4:35 | — | — | — | — |
 | 6:51 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | 6:52 |
— | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 22 | 22 | 23 | 22 | 22 | 26 | 29 | 30 | 27 | 22 | 22 | 21 | 21 | 22 | 24 | 24 | 22 | 21 | 21 | 20 | 20 | 23 | 24 | 25 |
26 | 23 | 21 | 20 | 20 | 23 | 24 | 24 | 23 | 22 | 22 | 22 | 22 | 23 | 21 | 19 | 20 | 21 | 22 | 20 | 20 | 23 | 23 | 22 | |
Swell 1 Height (m) Direction Period (s) | SW 8 | SSW 8 | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | SW 7 | SSW 7 | SSW 7 | SSW 7 | E 7 | E 6 | E 6 | E 11 | E 11 | E 10 | E 10 | E 10 | E 10 | S 14 | S 13 |
 kJ | 111 | 256 | 73 | 90 | 67 | 68 | 67 | 67 | 67 | 118 | 81 | 59 | 41 | 107 | 51 | 38 | 112 | 110 | 106 | 104 | 102 | 102 | 253 | 411 |
Swell 2 Height (m) Direction Period (s) | S 7 | ESE 8 | ESE 12 | ESE 13 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | SE 12 | WNW 6 | E 10 | E 10 | W 5 | SSW 7 | SSW 7 | SSW 7 | SSW 6 | SW 7 | SW 6 | SSE 6 | S 16 | S 15 | ESE 10 | ESE 10 |
| kJ | 86 | 73 | 15 | 16 | 15 | 15 | 15 | 15 | 6 | 50 | 67 | 65 | 7 | 41 | 41 | 38 | 33 | 15 | 14 | 11 | 75 | 150 | 106 | 104 |
Swell 3 Height (m) Direction Period (s) | ESE 8 | ESE 13 | S 9 | S 9 | S 9 | S 9 | S 9 | SE 9 | S 9 | E 10 | W 5 | W 5 | S 14 | E 11 | E 11 | E 11 | E 6 | ESE 5 | SSE 6 | SW 6 | SSE 6 | S 6 | SW 6 | SE 12 |
| kJ | 73 | 16 | 2 | 2 | 2 | 2 | 2 | 3 | 2 | 67 | 19 | 12 | 4 | 61 | 85 | 85 | 17 | 10 | 7 | 6 | 6 | 10 | 6 | 23 |
Wind waves Height (m) Direction Period (s) | SSW 7 | — | SW 7 | SW 7 | SW 7 | WSW 7 | WSW 6 | WSW 6 | WSW 6 | ENE 2 | ENE 3 | E 5 | E 6 | ENE 6 | — | W 4 | SW 2 | SW 3 | SW 3 | SW 4 | — | — | — | — |
| kJ | 310 | — | 365 | 353 | 322 | 306 | 274 | 320 | 271 | 1 | 9 | 50 | 158 | 160 | — | 1 | 1 | 2 | 3 | 3 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 2 | 2 | 103 | 103 | 65 | 65 | 65 | 65 | 2 | 13 | 138 | 94 | 2 | 2 | 65 | 65 | 65 | 6 | 6 | 6 | 2 | 2 | 6 | 65 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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