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Surf Forecasts:
Nichinan surfForecast / Kyu Shu / Japan
48hr Weather and Surf, issued 2 am Sunday 31 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
23.8° C
(Which is normal for this time of year)How big are the waves at Nichinan today (31 May):
- Morning surf: Morning surf (31 May, local time) - 4.5ft (1.3m), 12s period with SSE swell.
- Afternoon surf: Afternoon surf (31 May, local time) - 4.5ft (1.4m), 12s period with SSE swell.
- Evening surf: Evening surf (31 May, local time) - 3.5ft (1.1m), 14s period with S swell.
The current surf forecast for Nichinan at 7AM is: 1.2m 13s primary swell from a South-southeast direction and 0.8m 11s secondary swell from a East direction (forecast issued at 02:00am May 31). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 May) | 4.5ft (1.3m) | 12s |
| Afternoon (31 May) | 4.5ft (1.4m) | 12s |
| Evening (31 May) | 3.5ft (1.1m) | 14s |
Table - waves today at Nichinan. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 270mm), heaviest during Tue night. Warm (max 25°C on Tue night, min 20°C on Sun afternoon). Winds increasing (light winds from the ESE on Sun night, gales from the E by Tue afternoon). | ||||||||||||||||||||||||
Sunday 31 | Monday 1 | Tuesday 2 | ||||||||||||||||||||||
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 | 6 PM | 9 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SSE 14 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | S 14 | SSE 13 | SSE 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | ESE 8 | ESE 9 | SE 11 | SSE 14 | |
115 | 257 | 378 | 475 | 634 | 539 | 429 | 480 | 1760 | 2087 | 1483 | 1285 | 1391 | 1370 | 1530 | 1533 | 1510 | 1520 | 1380 | 1359 | 1865 | 3960 | 15803 | 33894 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross-off | cross-off | cross-off | cross-off | cross-on | on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | on | |
High Tide | 5:20AM1.83m | 7:02PM1.81m | 5:53AM1.84m | 7:38PM1.80m | 6:25AM1.83m | 8:13PM1.76m | ||||||||||||||||||
Low Tide | 11:50PM0.97m | 12:11PM0.16m | 00:25AM0.99m | 12:45PM0.14m | 00:59AM1.02m | 1:19PM0.16m | ||||||||||||||||||
 | |  | | | | |  | | | | |  | | |  | | |  | | | | |  | |
 | — | 5:09 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:14 | — | — | — | — | — | — | — | 7:14 | — |
— | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 5 | 8 | 6 | 6 | 13 | 25 | 30 | 35 | 44 | 77 | |
Temp °C | 22 | 22 | 22 | 22 | 21 | 21 | 20 | 21 | 21 | 21 | 21 | 22 | 22 | 21 | 22 | 22 | 23 | 23 | 22 | 22 | 23 | 23 | 24 | 25 |
24 | 24 | 22 | 22 | 20 | 22 | 20 | 22 | 22 | 21 | 21 | 20 | 22 | 21 | 23 | 23 | 24 | 23 | 22 | 20 | 20 | 17 | 15 | 20 | |
Swell 1 Height (m) Direction Period (s) | ESE 9 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | S 14 | SSE 13 | SSE 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 11 | SSW 14 | — |
 kJ | 92 | 257 | 378 | 475 | 634 | 539 | 429 | 480 | 1760 | 2087 | 1483 | 1285 | 1391 | 1370 | 1530 | 1533 | 1510 | 1520 | 1380 | 1359 | 1376 | 2174 | 8013 | — |
Swell 2 Height (m) Direction Period (s) | SSE 14 | E 11 | E 11 | E 11 | E 11 | E 11 | SSE 15 | SSE 11 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | ESE 12 | E 10 | SE 12 | SE 12 | — | SSE 10 | — | — | — |
| kJ | 115 | 149 | 151 | 151 | 149 | 149 | 365 | 249 | 79 | 73 | 73 | 71 | 71 | 71 | 72 | 15 | 68 | 23 | 23 | — | 33 | — | — | — |
Swell 3 Height (m) Direction Period (s) | NE 4 | — | S 15 | — | — | S 15 | E 11 | E 11 | E 10 | ESE 13 | E 10 | — | — | — | — | — | SE 12 | — | — | — | — | — | — | — |
| kJ | 2 | — | 115 | — | — | 168 | 114 | 114 | 104 | 16 | 74 | — | — | — | — | — | 23 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NE 4 | — | ESE 4 | SE 6 | — | — | ESE 7 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 8 | ESE 8 | ESE 9 | SE 11 | SSE 14 |
| kJ | — | — | — | — | 8 | — | 21 | 88 | — | — | 209 | 300 | 319 | 251 | 263 | 405 | 384 | 469 | 522 | 823 | 1865 | 3960 | 15803 | 33894 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 25 | 18 | 24 | 27 | 27 | 72 | 72 | 212 | 212 | 212 | 212 | 212 | 212 | 212 | 212 | 212 | 212 | 715 | 715 | 504 |
Best forecast wave conditions in Kyu Shu | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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