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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 8 pm Wednesday 27 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 (28 May):
- Morning surf: Morning surf (28 May, local time) - 2.5ft (0.8m), 9s period with ESE swell.
- Afternoon surf: Afternoon surf (28 May, local time) - 2.5ft (0.8m), 8s period with E swell.
- Evening surf: Evening surf (28 May, local time) - 2.5ft (0.7m), 8s period with E swell.
The current surf forecast for Katahama at 4AM is: 0.8m 9s primary swell from a East-southeast direction and 0.2m 5s secondary swell from a South direction, 0.4m 4s secondary swell from a South direction (forecast issued at 08:00pm May 27). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 May) | 2.5ft (0.8m) | 9s |
| Afternoon (28 May) | 2.5ft (0.8m) | 8s |
| Evening (28 May) | 2.5ft (0.7m) | 8s |
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 Wed night. Warm (max 30°C on Fri morning, min 20°C on Wed night). Winds increasing (calm on Wed night, fresh winds from the W by Fri afternoon). | ||||||||||||||||||||||||
Wed 27 | Thursday 28 | Friday 29 | Saturday 30 | |||||||||||||||||||||
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 |   |    |    |    | ||||||||||||||||||||
ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 8 | S 7 | E 8 | E 8 | ESE 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | ESE 10 | E 10 | E 6 | E 7 | E 7 | E 11 | |
126 | 126 | 131 | 106 | 99 | 99 | 99 | 92 | 90 | 69 | 71 | 96 | 67 | 67 | 67 | 67 | 68 | 67 | 96 | 88 | 88 | 192 | 117 | 85 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | glassy | cross-on | on | cross-on | cross | cross | cross-on | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross | cross | glassy | glassy | on | cross-on | |
High Tide | 3:27PM1.27m | 2:48AM1.49m | 4:14PM1.34m | 3:17AM1.52m | 4:54PM1.39m | 3:45AM1.55m | ||||||||||||||||||
Low Tide | 8:49PM0.81m | 9:43AM0.34m | 9:33PM0.86m | 10:16AM0.24m | 10:09PM0.90m | 10:47AM0.16m | ||||||||||||||||||
 |  |  | | | | | | |  | | |  | | | | | | | | | | | | |
 | — | — | — | 4:37 | — | — | — | — | — | — | — | 4:35 | — | — | — | — | — | — | — | 4:35 | — | — | — | — |
 | 6:51 | — | — | — | — | — | — | — | 6:51 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | 6:52 |
— | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 22 | 21 | 21 | 20 | 20 | 21 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 27 | 30 | 30 | 27 | 22 | 22 | 22 | 21 | 22 | 24 | 24 |
24 | 24 | 23 | 22 | 21 | 21 | 22 | 24 | 26 | 24 | 21 | 21 | 22 | 25 | 25 | 24 | 23 | 21 | 22 | 23 | 22 | 23 | 23 | 22 | |
Swell 1 Height (m) Direction Period (s) | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | S 6 | S 7 | SSW 7 | E 8 | ESE 10 | E 10 | E 10 | E 10 | E 10 | E 10 | SW 7 | SW 7 | SW 7 | SW 7 | E 7 | E 7 | E 11 |
 kJ | 126 | 126 | 131 | 106 | 99 | 99 | 99 | 78 | 89 | 249 | 71 | 96 | 67 | 67 | 67 | 67 | 68 | 88 | 75 | 54 | 37 | 192 | 117 | 85 |
Swell 2 Height (m) Direction Period (s) | ESE 14 | ESE 14 | ESE 14 | S 5 | S 4 | S 5 | S 5 | E 8 | SW 8 | E 8 | ESE 12 | S 9 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | SE 13 | E 10 | WNW 5 | E 10 | E 11 | SW 7 | SW 7 | SW 7 |
| kJ | 19 | 19 | 18 | 2 | 6 | 11 | 20 | 92 | 111 | 69 | 15 | 2 | 15 | 15 | 15 | 15 | 6 | 67 | 28 | 88 | 83 | 38 | 31 | 17 |
Swell 3 Height (m) Direction Period (s) | S 5 | S 5 | S 5 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | SW 8 | E 8 | ESE 13 | S 9 | — | S 9 | S 9 | S 9 | — | SE 9 | SE 12 | ESE 10 | W 5 | W 5 | SSE 6 | E 11 | S 6 |
| kJ | 2 | 2 | 2 | 18 | 18 | 17 | 17 | 28 | 90 | 16 | 2 | — | 2 | 2 | 2 | — | 3 | 6 | 96 | 13 | 7 | 8 | 59 | 7 |
Wind waves Height (m) Direction Period (s) | — | — | — | S 4 | — | ENE 3 | ENE 3 | — | — | — | SW 8 | SW 7 | SW 7 | WSW 7 | WSW 6 | WSW 6 | WSW 6 | W 6 | E 2 | ENE 4 | E 6 | E 7 | E 7 | ESE 6 |
| kJ | — | — | — | 5 | — | 5 | 7 | — | — | — | 407 | 392 | 309 | 294 | 233 | 300 | 272 | 91 | 1 | 9 | 88 | 274 | 154 | 53 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 208 | 6 | 65 | 13 | 66 | 13 | 13 | 13 | 2 | 2 | 65 | 65 | 65 | 65 | 103 | 65 | 104 | 13 | 150 | 13 | 2 | 2 | 13 | 104 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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