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Mainside surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 2 am Sunday 30 Nov 2025 JSTForecast update in hr min s Forecast update imminent
Mainside surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mainside sea temperature is
26.0° C
(Which is 1.4°C warmer than normal for this time of year)How big are the waves at Mainside today?
The current surf forecast for Mainside at 8AM is: 0.5m 7s primary swell from a North direction (forecast issued at 02:00am November 30). An open ocean swell of 0.4m 10s is not directed at the surf break, a second open ocean swell of 0.3m 2s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Nov) | 1.5ft (0.5m) | 7s |
| Afternoon (30 Nov) | 1ft (0.3m) | 7s |
| Evening (30 Nov) | 1ft (0.3m) | 6s |
Table - waves today at Mainside. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 30 | Monday 01 | Tuesday 02 | ||||||||||||||||||||||
| 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 | 6 PM | 9 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 57 | 42 | 27 | 26 | 15 | 9 | 9 | 8 | 6 | 5 | 5 | 8 | 8 | 8 | 8 | 8 | 20 | 8 | 20 | 18 | 18 | 19 | 19 | 19 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | off | off | off | off | off | off | off | cross- off | cross- off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | glass | cross- on | cross | cross |
High Tide / height (m) | 2:38AM 1.50 | 3:16PM 1.68 | 4:01AM 1.59 | 4:05PM 1.77 | 5:06AM 1.71 | 4:49PM 1.86 | ||||||||||||||||||
Low Tide / height (m) | 8:50AM 0.65 | 9:45PM 0.56 | 9:55AM 0.68 | 10:40PM 0.34 | 10:52AM 0.71 | |||||||||||||||||||
Sunday 30 | Monday 01 | Tuesday 02 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:58 | - | - | - | - | - | - | - | 6:58 | - | - | - | - | - | - | - | 6:58 | - | - | - | - |
| Sunset | - | - | - | - | - | 5:36 | - | - | - | - | - | - | - | 5:36 | - | - | - | - | - | - | - | 5:36 | - | - |
 | | |  | | | | | | | |  | | | |  | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 21 | 21 | 21 | 21 | 22 | 23 | 22 | 22 | 22 | 21 | 21 | 21 | 22 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 22 |
| Feels °C (?) | 20 | 20 | 20 | 19 | 20 | 21 | 20 | 20 | 21 | 20 | 20 | 19 | 20 | 22 | 20 | 20 | 21 | 21 | 22 | 22 | 24 | 23 | 22 | 21 |
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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