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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 8 am Sunday 31 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
20.6° C
(Which is 1.6°C colder than average for this time of year)How big are the waves at Katahama today (31 May):
- Morning surf: Morning surf (31 May, local time) - 2ft (0.6m), 14s period with S swell.
- Afternoon surf: Afternoon surf (31 May, local time) - 2ft (0.6m), 10s period with ESE swell.
- Evening surf: Evening surf (31 May, local time) - 3.5ft (1.1m), 12s period with S swell.
The current surf forecast for Katahama at 1PM is: 0.9m 13s primary swell from a South direction and 0.6m 10s secondary swell from a East direction (forecast issued at 08:00am May 31). The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 May) | 2ft (0.6m) | 14s |
| Afternoon (31 May) | 2ft (0.6m) | 10s |
| Evening (31 May) | 3.5ft (1.1m) | 12s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 20mm), heaviest during Tue night. Warm (max 26°C on Sun afternoon, min 19°C on Sun night). Winds increasing (calm on Mon night, fresh winds from the NE by Tue night). | ||||||||||||||||||||||||
Sunday 31 | Monday 1 | Tuesday 2 | Wed 3 | |||||||||||||||||||||
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 | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
E 10 | S 14 | S 13 | ESE 10 | E 10 | S 12 | E 10 | S 11 | S 11 | S 11 | S 11 | S 10 | E 10 | E 10 | E 10 | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | SE 6 | SE 6 | SE 6 | |
104 | 142 | 225 | 78 | 71 | 336 | 49 | 303 | 233 | 229 | 224 | 121 | 46 | 45 | 44 | 43 | 50 | 50 | 49 | 49 | 49 | 54 | 80 | 178 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-on | glassy | cross-on | cross | cross | cross-off | cross-off | cross-off | glassy | cross | cross | cross | glassy | glassy | glassy | cross | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | |
High Tide | 4:15AM1.58m | 6:05PM1.45m | 4:46AM1.60m | 6:41PM1.47m | 5:21AM1.61m | 7:19PM1.48m | ||||||||||||||||||
Low Tide | 11:19AM0.10m | 11:14PM0.95m | 11:52AM0.07m | 11:50PM0.96m | 12:27PM0.07m | 00:33AM0.96m | ||||||||||||||||||
 | | | |  |  | |  |  | | | | | | |  | | | | | |  | |  | |
 | 4:35 | — | — | — | — | — | — | 4:35 | — | — | — | — | — | — | — | 4:35 | — | — | — | — | — | — | — | 4:33 |
 | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:53 | — | — | — | — | — | — | — | 6:54 | — | — | 6:54 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 8 | |
Temp °C | 20 | 23 | 25 | 26 | 21 | 20 | 19 | 19 | 19 | 22 | 23 | 22 | 22 | 21 | 21 | 20 | 20 | 21 | 22 | 22 | 22 | 21 | 20 | 19 |
20 | 23 | 25 | 23 | 19 | 19 | 19 | 19 | 19 | 23 | 22 | 20 | 22 | 22 | 22 | 21 | 20 | 21 | 22 | 22 | 23 | 22 | 21 | 18 | |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | S 13 | S 13 | E 10 | S 12 | S 6 | SSW 6 | S 11 | S 11 | S 11 | SSW 13 | S 13 | SSW 13 | SSW 13 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 14 |
 kJ | 104 | 102 | 225 | 319 | 71 | 336 | 122 | 83 | 233 | 229 | 224 | 539 | 919 | 1058 | 1106 | 1161 | 1286 | 1398 | 1422 | 1401 | 1380 | 1207 | 1093 | 1748 |
Swell 2 Height (m) Direction Period (s) | SW 4 | S 14 | E 10 | ESE 10 | SE 12 | E 10 | S 12 | S 11 | SSW 5 | SSW 15 | S 14 | S 10 | E 10 | E 10 | E 10 | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | SW 16 | SW 15 |
| kJ | 7 | 142 | 74 | 78 | 22 | 75 | 333 | 303 | 40 | 370 | 311 | 121 | 46 | 45 | 44 | 43 | 50 | 50 | 49 | 49 | 49 | 28 | 322 | 809 |
Swell 3 Height (m) Direction Period (s) | S 15 | SW 6 | SW 6 | SE 12 | S 8 | SE 12 | E 10 | E 10 | S 15 | SW 5 | SSW 17 | E 10 | SE 11 | SE 11 | SE 11 | SE 4 | SE 4 | — | — | SE 11 | E 16 | ESE 12 | SE 11 | — |
| kJ | 70 | 9 | 12 | 23 | 1 | 22 | 49 | 49 | 218 | 19 | 159 | 46 | 20 | 19 | 19 | 5 | 7 | — | — | 19 | 5 | 13 | 18 | — |
Wind waves Height (m) Direction Period (s) | W 4 | — | — | — | S 12 | SSW 6 | — | — | — | — | SW 5 | SSW 4 | — | — | — | — | — | — | — | SE 5 | SE 5 | SE 6 | SE 6 | SE 6 |
| kJ | 7 | — | — | — | 584 | 131 | — | — | — | — | 10 | 7 | — | — | — | — | — | — | — | 25 | 41 | 54 | 80 | 178 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 2 | 13 | 2 | 94 | 2667 | 382 | 2 | 2 | 2 | 2 | 6 | 208 | 6 | 2 | 2 | 2 | 13 | 104 | 104 | 13 | 13 | 127 | 103 | 103 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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