Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
Nichinan surfForecast / Kyu Shu / Japan
48hr Weather and Surf, issued 8 pm Wednesday 17 Dec 2025 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
21.0° C
(Which is slightly cooler than normal)How big are the waves at Nichinan today?
The current surf forecast for Nichinan at 1AM is: 0.4m 9s primary swell from a East-southeast direction and 0.1m 4s secondary swell from a Southwest direction (forecast issued at 08:00pm December 17). An open ocean swell of 0.2m 2s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Dec) | 1.5ft (0.4m) | 10s |
| Afternoon (18 Dec) | 1.5ft (0.4m) | 10s |
| Evening (18 Dec) | 1.5ft (0.4m) | 9s |
Table - waves today at Nichinan. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wed 17 | Thursday 18 | Friday 19 | Saturday 20 | |||||||||||||||||||||
| 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 30 | 31 | 31 | 30 | 37 | 38 | 38 | 31 | 35 | 29 | 29 | 29 | 31 | 31 | 38 | 38 | 38 | 38 | 37 | 36 | 25 | 33 | 63 | 129 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | off | off | off | cross- off | cross | cross- on | cross | cross | cross- off | cross- off | cross- off | cross- on | cross- on | cross- on | cross- on | glass | glass | glass | cross- off | cross- off | cross- on | cross- on |
High Tide / height (m) | 4:04PM 1.66 | 5:53AM 1.65 | 4:40PM 1.71 | 6:29AM 1.71 | 5:15PM 1.74 | 7:03AM 1.74 | ||||||||||||||||||
Low Tide / height (m) | 11:01PM 0.21 | 11:13AM 0.95 | 11:35PM 0.12 | 11:50AM 0.94 | 12:09AM 0.05 | 12:24PM 0.94 | ||||||||||||||||||
Wed 17 | Thursday 18 | Friday 19 | Saturday 20 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 7:07 | - | - | - | - | - | - | - | 7:07 | - | - | - | - | - | - | - | 7:07 | - | - |
| Sunset | - | - | - | - | - | - | - | 5:13 | - | - | - | - | - | - | - | 5:13 | - | - | - | - | - | - | - | 5:14 |
 | | | | |  | | | | | |  | |  |  | | | |  | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 13 | 11 | 11 | 10 | 11 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 16 | 17 | 18 | 18 | 17 | 16 | 16 | 16 | 16 | 18 | 19 |
| Feels °C (?) | 12 | 10 | 8 | 8 | 7 | 9 | 12 | 11 | 10 | 10 | 11 | 11 | 11 | 15 | 14 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 17 | 18 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Nichinan surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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