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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 2 pm 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
20.0° C
(Which is 1.2°C colder than average for this time of year)How big are the waves at Katahama today?
The current surf forecast for Katahama at 6PM is: 0.6m 11s primary swell from a Southeast direction and 0.5m 9s secondary swell from a East direction, 0.5m 3s secondary swell from a Southwest direction (forecast issued at 02:00pm May 19). The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | - | - |
| 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 81mm), heaviest during Thu night. Warm (max 24°C on Wed morning, min 16°C on Thu night). Winds increasing (calm on Wed night, fresh winds from the SW by Thu afternoon). | ||||||||||||||||||||||||
Tue 19 | Wednesday 20 | Thursday 21 | Fri 22 | |||||||||||||||||||||
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 | 12 AM | 3 AM | 6 AM | 9 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SE 11 | SE 11 | SE 11 | SE 10 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | E 10 | E 5 | SW 8 | |
73 | 73 | 72 | 69 | 117 | 120 | 148 | 145 | 145 | 125 | 122 | 120 | 115 | 103 | 100 | 80 | 81 | 61 | 54 | 55 | 55 | 149 | 95 | 0 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | glassy | glassy | cross | glassy | cross | cross-off | cross | cross-off | cross | cross | cross | cross | cross | |
High Tide | 7:42PM1.43m | 6:25AM1.53m | 8:30PM1.40m | 7:08AM1.44m | 9:27PM1.38m | 7:59AM1.32m | ||||||||||||||||||
Low Tide | 12:51PM0.07m | 00:54AM0.93m | 1:34PM0.12m | 1:49AM0.96m | 2:22PM0.22m | 3:01AM0.98m | ||||||||||||||||||
 |  | |  |  |  | | | |  |  |  |  | | | |  |  | |  |  | | | | |
 | — | — | — | — | — | 4:41 | — | — | — | — | — | — | — | 4:39 | — | — | — | — | — | — | — | 4:39 | — | — |
 | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | 6:46 |
— | — | — | — | — | — | — | — | — | — | 4 | 2 | 1 | 2 | 2 | 4 | 6 | 13 | 9 | 7 | 15 | 13 | 3 | — | |
Temp °C | 23 | 23 | 22 | 21 | 20 | 20 | 20 | 23 | 24 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 21 | 22 | 21 | 19 | 16 | 16 | 18 |
21 | 21 | 21 | 22 | 21 | 21 | 21 | 23 | 23 | 20 | 23 | 25 | 25 | 24 | 24 | 22 | 21 | 19 | 21 | 22 | 20 | 12 | 12 | 13 | |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | SE 11 | SE 10 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SSW 6 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SW 8 | SSW 8 | SW 8 | SW 8 |
 kJ | 60 | 63 | 72 | 69 | 117 | 120 | 148 | 145 | 145 | 125 | 122 | 120 | 115 | 103 | 165 | 80 | 81 | 61 | 54 | 55 | 636 | 489 | 473 | 390 |
Swell 2 Height (m) Direction Period (s) | SE 11 | SE 11 | E 9 | E 9 | E 10 | E 10 | S 7 | S 7 | S 7 | S 7 | S 7 | S 6 | S 6 | — | ESE 9 | — | — | — | — | — | ESE 10 | — | ESE 10 | — |
| kJ | 73 | 73 | 41 | 42 | 48 | 54 | 1 | 1 | 1 | 4 | 3 | 3 | 3 | — | 100 | — | — | — | — | — | 55 | — | 37 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | S 8 | S 8 | S 8 | S 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 1 | 1 | 1 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 2 | SW 3 | SW 3 | SW 3 | SW 3 | SSW 3 | WSW 3 | SSW 4 | SW 3 | S 4 | S 4 | S 4 | S 4 | S 5 | — | SSW 7 | SSW 7 | SW 8 | SW 8 | SW 8 | — | E 10 | E 5 | E 6 |
| kJ | 1 | 2 | 5 | 2 | 1 | 2 | 1 | 4 | 2 | 7 | 8 | 8 | 8 | 58 | — | 268 | 478 | 721 | 1060 | 823 | — | 149 | 95 | 209 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 6 | 6 | 382 | 236 | 65 | 2 | 2 | 2 | 2 | 6 | 65 | 355 | 6 | 6 | 6 | 6 | 2 | 6 | 2 | 65 | 65 | 2 | 94 | 13 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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