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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 2 am Saturday 16 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
18.8° C
(Which is 2.0°C colder than average for this time of year)How big are the waves at Katahama today?
The current surf forecast for Katahama at 7AM is: 0.8m 9s primary swell from a East direction and 0.4m 8s secondary swell from a East-southeast direction (forecast issued at 02:00am May 16). The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 May) | 2.5ft (0.8m) | 9s |
| Afternoon (16 May) | 2.5ft (0.7m) | 9s |
| Evening (16 May) | 2.5ft (0.8m) | 8s |
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 23°C on Mon morning, min 17°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 16 | Sunday 17 | Monday 18 | ||||||||||||||||||||||
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 9 | E 9 | E 9 | E 9 | ESE 9 | ESE 9 | ESE 7 | ESE 8 | E 9 | ESE 9 | ESE 7 | ESE 7 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | |
164 | 41 | 108 | 101 | 80 | 75 | 56 | 78 | 43 | 84 | 34 | 48 | 90 | 88 | 92 | 124 | 116 | 106 | 106 | 103 | 103 | 103 | 77 | 79 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | glassy | glassy | off | glassy | glassy | cross-on | cross-on | cross-on | glassy | cross-off | glassy | glassy | cross-on | cross | cross | cross | cross-off | |
High Tide | 4:16AM1.56m | 5:45PM1.44m | 4:43AM1.59m | 6:21PM1.45m | 5:14AM1.60m | 6:59PM1.44m | ||||||||||||||||||
Low Tide | 10:35PM0.80m | 11:09AM0.11m | 11:04PM0.84m | 11:40AM0.06m | 11:35PM0.87m | 12:14PM0.05m | ||||||||||||||||||
 | |  | | |  |  |  | | | | | | | | | | | | | | | | | |
 | — | 4:43 | — | — | — | — | — | — | — | 4:43 | — | — | — | — | — | — | — | 4:41 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:44 | — | — | — | — | — | — | — | 6:44 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 18 | 17 | 17 | 19 | 20 | 19 | 19 | 18 | 18 | 17 | 17 | 20 | 22 | 22 | 21 | 21 | 21 | 19 | 19 | 21 | 23 | 23 | 22 | 21 |
18 | 17 | 16 | 18 | 18 | 17 | 18 | 18 | 18 | 16 | 17 | 21 | 21 | 20 | 19 | 22 | 21 | 19 | 20 | 21 | 21 | 20 | 21 | 21 | |
Swell 1 Height (m) Direction Period (s) | SE 10 | ESE 6 | E 9 | E 9 | ESE 9 | ESE 9 | ESE 7 | ESE 8 | ESE 7 | ESE 9 | ESE 7 | ESE 7 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 |
 kJ | 24 | 39 | 108 | 101 | 80 | 75 | 56 | 78 | 31 | 84 | 34 | 48 | 90 | 88 | 92 | 124 | 116 | 106 | 106 | 103 | 103 | 103 | 77 | 79 |
Swell 2 Height (m) Direction Period (s) | SE 11 | E 9 | ESE 8 | ESE 8 | ESE 8 | E 8 | E 9 | E 9 | E 9 | SSE 10 | ESE 10 | ESE 9 | SE 11 | SE 10 | — | — | SE 8 | — | — | SE 7 | SE 12 | SSE 7 | SSE 7 | SE 7 |
| kJ | 19 | 41 | 28 | 28 | 28 | 35 | 15 | 7 | 43 | 10 | 30 | 29 | 18 | 17 | — | — | 2 | — | — | 2 | 5 | 5 | 5 | 8 |
Swell 3 Height (m) Direction Period (s) | S 6 | ESE 8 | SE 11 | SE 11 | SE 12 | SE 11 | SE 11 | SSE 10 | SSE 10 | SE 14 | SSE 10 | SE 11 | SE 14 | — | — | — | — | SE 7 | SE 7 | — | — | SE 11 | SE 11 | SE 10 |
| kJ | 1 | 26 | 18 | 19 | 21 | 19 | 18 | 10 | 10 | 7 | 10 | 18 | 7 | — | — | — | — | 2 | 2 | — | — | 5 | 5 | 16 |
Wind waves Height (m) Direction Period (s) | E 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 3 | — | — | — | SW 3 | SW 3 | SW 3 |
| kJ | 164 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | 2 | 3 | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 2 | 13 | 13 | 13 | 104 | 104 | 104 | 6 | 6 | 6 | 6 | 6 | 65 | 6 | 65 | 6 | 13 | 6 | 6 | 6 | 6 | 211 | 65 | 6 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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