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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 8 pm Monday 04 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
18.0° 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 5AM is: 0.5m 7s primary swell from a South direction (forecast issued at 08:00pm May 04). An open ocean swell of 1.8m 9s is not directed at the surf break, a second open ocean swell of 1.6m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (05 May) | 3.5ft (1.0m) | 4s |
| Afternoon (05 May) | 3ft (0.9m) | 6s |
| Evening (05 May) | 1.5ft (0.4m) | 10s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 10mm), heaviest on Wed night. Warm (max 21°C on Thu afternoon, min 12°C on Mon night). Winds decreasing (strong winds from the WNW on Mon night, light winds from the E by Tue night). | ||||||||||||||||||||||||
Mon 4 | Tuesday 5 | Wednesday 6 | Thursday 7 | |||||||||||||||||||||
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 10 | ESE 10 | S 8 | S 7 | SE 10 | E 4 | E 5 | ESE 6 | ESE 10 | ESE 10 | ESE 10 | SE 5 | ESE 9 | ESE 9 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | |
20 | 21 | 63 | 28 | 27 | 36 | 65 | 52 | 38 | 37 | 37 | 36 | 35 | 34 | 47 | 58 | 85 | 88 | 132 | 140 | 144 | 102 | 86 | 75 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | off | cross-on | cross-on | on | on | on | cross-on | cross | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross-off | off | cross | cross | cross | |
High Tide | 7:20PM1.41m | 6:16AM1.56m | 8:08PM1.37m | 6:53AM1.48m | 9:05PM1.32m | 7:35AM1.37m | ||||||||||||||||||
Low Tide | 00:34AM0.84m | 1:19PM0.09m | 1:18AM0.90m | 2:05PM0.17m | 2:17AM0.96m | 2:59PM0.28m | ||||||||||||||||||
 |  |  | |  | | | | |  | | |  | | |  | |  | | | | | | | |
 | — | — | — | 4:52 | — | — | — | — | — | — | — | 4:52 | — | — | — | — | — | — | — | 4:50 | — | — | — | — |
 | 6:32 | — | — | — | — | — | — | — | 6:34 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — | 6:36 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 4 | 2 | — | — | — | — | — | |
Temp °C | 17 | 15 | 14 | 12 | 14 | 16 | 16 | 17 | 17 | 17 | 16 | 15 | 15 | 16 | 17 | 16 | 15 | 15 | 16 | 16 | 16 | 19 | 20 | 21 |
9 | 7 | 6 | 7 | 9 | 10 | 11 | 14 | 14 | 15 | 14 | 12 | 11 | 13 | 14 | 14 | 13 | 14 | 15 | 15 | 15 | 19 | 17 | 17 | |
Swell 1 Height (m) Direction Period (s) | SW 9 | SW 9 | SW 9 | SW 9 | WSW 9 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | ESE 10 | SE 5 | SE 5 | SE 5 | ESE 9 | SE 6 | SE 6 | ESE 9 | ESE 9 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 |
 kJ | 1132 | 766 | 525 | 492 | 513 | 224 | 112 | 90 | 60 | 36 | 37 | 30 | 24 | 23 | 33 | 58 | 85 | 32 | 32 | 140 | 144 | 102 | 86 | 75 |
Swell 2 Height (m) Direction Period (s) | ESE 10 | ESE 10 | S 8 | S 7 | S 7 | W 5 | WNW 5 | ESE 10 | ESE 10 | ESE 10 | SW 7 | ESE 10 | ESE 9 | ESE 9 | WSW 6 | ESE 9 | ESE 9 | SW 5 | SW 7 | ESE 9 | W 7 | ESE 9 | ESE 9 | ESE 10 |
| kJ | 20 | 21 | 63 | 28 | 27 | 20 | 9 | 38 | 38 | 37 | 19 | 36 | 35 | 34 | 4 | 33 | 48 | 1 | 2 | 42 | 1 | 33 | 50 | 56 |
Swell 3 Height (m) Direction Period (s) | — | ESE 10 | SE 10 | ESE 10 | SE 10 | S 7 | SE 10 | W 5 | SSE 7 | SSE 7 | SSE 6 | SSE 6 | SSE 6 | SW 6 | WSW 6 | SW 6 | SW 6 | W 7 | — | W 7 | W 7 | W 6 | W 6 | W 6 |
| kJ | — | 21 | 27 | 21 | 27 | 15 | 25 | 2 | 5 | 9 | 13 | 8 | 7 | 6 | 4 | 1 | 1 | 1 | — | 1 | 1 | 1 | 1 | 1 |
Wind waves Height (m) Direction Period (s) | WNW 6 | WNW 6 | WNW 6 | WNW 6 | WNW 6 | E 4 | E 5 | ESE 6 | ESE 4 | ESE 5 | SE 5 | — | — | ENE 3 | SE 6 | — | — | SE 6 | SE 6 | — | NNE 2 | — | — | — |
| kJ | 172 | 200 | 238 | 166 | 185 | 36 | 65 | 52 | 27 | 28 | 30 | — | — | 3 | 47 | — | — | 88 | 132 | — | 1 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 351 | 103 | 104 | 2 | 13 | 94 | 104 | 104 | 208 | 13 | 13 | 13 | 13 | 13 | 208 | 13 | 13 | 334 | 13 | 2 | 2 | 6 | 65 | 208 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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