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Surf Forecasts:
Nichinan surfForecast / Kyu Shu / Japan
48hr Weather and Surf, issued 8 am Friday 15 May 2026 JSTForecast update in hr min s Forecast update imminent
Nichinan surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Nichinan sea temperature is
21.7° C
(Which is 1.2°C colder than average for this time of year)How big are the waves at Nichinan today?
The current surf forecast for Nichinan at 12PM is: 1.0m 9s primary swell from a East direction and 0.2m 7s secondary swell from a South direction, 1.1m 5s secondary swell from a Northeast direction (forecast issued at 08:00am May 15). The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 May) | 3.5ft (1.1m) | 10s |
| Afternoon (15 May) | 3ft (0.9m) | 9s |
| Evening (15 May) | 4.5ft (1.3m) | 9s |
Table - waves today at Nichinan. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Fri afternoon. Warm (max 23°C on Sun afternoon, min 19°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 15 | Saturday 16 | Sunday 17 | Mon 18 | |||||||||||||||||||||
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 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 9 | ENE 9 | ENE 9 | ENE 9 | E 8 | E 9 | E 8 | E 9 | E 9 | E 8 | E 8 | |
266 | 220 | 175 | 139 | 104 | 276 | 311 | 262 | 262 | 213 | 239 | 223 | 187 | 158 | 135 | 132 | 123 | 137 | 127 | 145 | 189 | 177 | 143 | 143 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross | cross-on | cross-on | glassy | cross-off | off | cross-off | cross | cross-on | cross-on | on | glassy | glassy | off | |
High Tide | 4:25AM1.84m | 5:30PM1.89m | 4:59AM1.92m | 6:19PM1.97m | 5:35AM1.97m | 7:08PM1.99m | ||||||||||||||||||
Low Tide | 10:55AM0.11m | 11:14PM0.71m | 11:36AM-0.06m | 11:57PM0.80m | 12:20PM-0.16m | 00:40AM0.88m | ||||||||||||||||||
 | | |  | |  |  | | | | | | | | | | | | | | | | | | |
 | 5:18 | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — | — | 5:16 |
 | — | — | — | — | 7:02 | — | — | — | — | — | — | — | 7:02 | — | — | — | — | — | — | — | 7:04 | — | — | 7:05 |
— | — | — | 1 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 18 | 21 | 22 | 22 | 22 | 21 | 20 | 20 | 20 | 21 | 22 | 22 | 21 | 20 | 19 | 19 | 19 | 21 | 22 | 23 | 22 | 20 | 20 | 19 |
17 | 19 | 19 | 20 | 21 | 21 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 20 | 19 | 19 | 22 | 22 | 23 | 23 | 22 | 22 | 19 | |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | E 9 | E 9 | E 9 | SE 11 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 9 | ENE 9 | ENE 9 | ENE 9 | E 8 | E 9 | E 8 | E 9 | E 9 | E 8 | E 8 |
 kJ | 266 | 220 | 175 | 139 | 104 | 30 | 311 | 262 | 262 | 213 | 239 | 223 | 187 | 158 | 135 | 132 | 123 | 137 | 127 | 145 | 189 | 177 | 143 | 143 |
Swell 2 Height (m) Direction Period (s) | S 7 | S 7 | S 7 | S 7 | ESE 10 | S 7 | SE 11 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 10 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 8 | ENE 9 | ENE 8 | SE 11 | SE 10 | SE 12 |
| kJ | 4 | 4 | 4 | 4 | 43 | 1 | 30 | 62 | 68 | 55 | 20 | 33 | 56 | 120 | 100 | 103 | 93 | 42 | 75 | 25 | 14 | 31 | 28 | 34 |
Swell 3 Height (m) Direction Period (s) | S 7 | S 7 | — | E 16 | S 7 | E 16 | S 6 | S 6 | S 6 | S 6 | SE 11 | SE 11 | SE 11 | SE 12 | SE 11 | SE 11 | — | SE 11 | SE 11 | SE 11 | SE 11 | — | — | — |
| kJ | 4 | 4 | — | 5 | 3 | 5 | 1 | 1 | 1 | 1 | 19 | 19 | 20 | 21 | 20 | 32 | — | 18 | 18 | 19 | 18 | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 4 | NE 4 | NE 5 | ENE 5 | E 5 | E 9 | E 6 | E 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 10 | 17 | 49 | 46 | 55 | 276 | 109 | 109 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 27 | 818 | 27 | 27 | 27 | 27 | 27 | 0 | 0 | 348 | 348 | 27 | 0 | 0 | 0 | 0 | 18 | 27 | 27 | 27 | 0 | 0 | 0 |
Best forecast wave conditions in Kyu Shu | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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