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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 2 am Saturday 30 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
20.5° C
(Which is 1.6°C colder than average for this time of year)How big are the waves at Katahama today (30 May):
- Morning surf: Morning surf (30 May, local time) - 2.5ft (0.7m), 11s period with E swell.
- Afternoon surf: Afternoon surf (30 May, local time) - 2ft (0.6m), 11s period with E swell.
- Evening surf: Evening surf (30 May, local time) - 2ft (0.6m), 11s period with E swell.
The current surf forecast for Katahama at 8AM is: 0.7m 11s primary swell from a East direction and 0.9m 5s secondary swell from a East-northeast direction (forecast issued at 02:00am May 30). An open ocean swell of 0.8m 7s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 May) | 2.5ft (0.7m) | 11s |
| Afternoon (30 May) | 2ft (0.6m) | 11s |
| Evening (30 May) | 2ft (0.6m) | 11s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 24°C on Sat morning, min 19°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 30 | Sunday 31 | Monday 1 | ||||||||||||||||||||||
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 10 | E 11 | E 11 | E 11 | E 11 | E 11 | E 11 | E 10 | E 10 | E 10 | S 14 | S 13 | S 13 | S 12 | S 12 | S 12 | E 10 | S 11 | E 10 | E 10 | S 10 | E 10 | E 10 | |
68 | 92 | 83 | 114 | 85 | 85 | 83 | 82 | 78 | 77 | 104 | 142 | 225 | 316 | 292 | 336 | 393 | 51 | 233 | 50 | 47 | 121 | 46 | 45 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | glassy | cross | cross | cross | cross-off | glassy | glassy | glassy | glassy | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-off | cross-off | |
High Tide | 3:45AM1.55m | 5:30PM1.43m | 4:15AM1.58m | 6:05PM1.45m | 4:46AM1.60m | 6:41PM1.47m | ||||||||||||||||||
Low Tide | 10:09PM0.90m | 10:47AM0.16m | 10:41PM0.94m | 11:19AM0.10m | 11:14PM0.95m | 11:52AM0.07m | ||||||||||||||||||
 | |  | | | |  |  | | |  | | | | | | | | | | | | | | |
 | — | 4:35 | — | — | — | — | — | — | — | 4:35 | — | — | — | — | — | — | — | 4:35 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:53 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 22 | 21 | 23 | 24 | 24 | 23 | 22 | 21 | 20 | 20 | 22 | 23 | 23 | 24 | 23 | 20 | 19 | 19 | 23 | 24 | 24 | 23 | 21 |
21 | 21 | 20 | 23 | 21 | 21 | 20 | 20 | 21 | 21 | 20 | 22 | 22 | 21 | 22 | 22 | 20 | 19 | 19 | 23 | 22 | 22 | 22 | 22 | |
Swell 1 Height (m) Direction Period (s) | SW 7 | SSW 7 | SSW 7 | SSW 7 | E 6 | SSW 7 | E 11 | E 11 | E 10 | E 10 | E 10 | E 10 | S 13 | S 13 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | S 14 | S 14 | S 13 | SSW 14 |
 kJ | 91 | 59 | 59 | 53 | 38 | 38 | 83 | 82 | 78 | 77 | 104 | 75 | 225 | 316 | 292 | 336 | 393 | 418 | 233 | 279 | 474 | 627 | 933 | 1421 |
Swell 2 Height (m) Direction Period (s) | W 5 | E 10 | E 11 | E 11 | SSW 7 | E 6 | E 6 | SW 6 | SW 6 | SSE 6 | SW 4 | S 14 | E 10 | E 10 | E 10 | SSW 5 | SSW 5 | E 10 | S 15 | S 15 | S 11 | SSW 17 | SSW 17 | E 10 |
| kJ | 28 | 92 | 83 | 114 | 40 | 38 | 25 | 21 | 14 | 6 | 8 | 142 | 74 | 73 | 71 | 56 | 36 | 51 | 221 | 447 | 227 | 419 | 550 | 45 |
Swell 3 Height (m) Direction Period (s) | E 10 | W 5 | W 5 | E 6 | E 11 | E 11 | SE 9 | E 6 | SSE 6 | SW 6 | S 15 | SW 6 | SW 6 | SE 12 | SE 12 | E 10 | E 10 | S 16 | E 10 | E 10 | E 10 | S 10 | E 10 | SE 11 |
| kJ | 68 | 18 | 7 | 25 | 85 | 85 | 3 | 9 | 6 | 6 | 70 | 17 | 12 | 6 | 22 | 75 | 51 | 127 | 50 | 50 | 47 | 121 | 46 | 20 |
Wind waves Height (m) Direction Period (s) | — | NE 4 | ENE 5 | — | — | — | SW 6 | WSW 3 | WSW 4 | WSW 4 | WSW 6 | — | — | SW 3 | SSW 5 | — | — | — | — | — | — | — | — | — |
| kJ | — | 4 | 36 | — | — | — | 42 | 4 | 5 | 6 | 34 | — | — | 5 | 55 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 2 | 2 | 2 | 6 | 6 | 65 | 65 | 6 | 6 | 6 | 2 | 2 | 65 | 6 | 2 | 2 | 2 | 2 | 2 | 6 | 65 | 65 | 2 | 2 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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