Surf Forecasts:
How big are the waves at Mainside today (29 Aug):
- Morning surf: Morning surf (29 Aug, local time) - 1.5ft (0.5m), 8s period with W swell.
- Afternoon surf: Afternoon surf (29 Aug, local time) - 1.5ft (0.4m), 8s period with W swell.
- Evening surf: Evening surf (29 Aug, local time) - 0.5ft (0.2m), 13s period with ENE swell.
The current surf forecast for Mainside at 5PM is: 0.2m 13s primary swell from a East-northeast direction and 0.3m 8s secondary swell from a West direction (forecast issued at 08:00am August 29). An open ocean swell of 0.9m 9s is not directed at the surf break, a second open ocean swell of 1.1m 7s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Aug) | 1.5ft (0.5m) | 8s |
| Afternoon (29 Aug) | 1.5ft (0.4m) | 8s |
| Evening (29 Aug) | 0.5ft (0.2m) | 13s |
Table - waves today at Mainside. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 7mm), mostly falling on Mon night. Warm (max 29°C on Sat morning, min 27°C on Sat night). Winds increasing (moderate winds from the ESE on Sat night, strong winds from the E by Mon night). | ||||||||||||||||||||||
Saturday 29 | Sunday 30 | Monday 31 | ||||||||||||||||||||
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 |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | W 8 | W 8 | W 8 | W 8 | ENE 13 | ENE 13 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | E 7 | ENE 12 | ENE 11 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 51 | 33 | 20 | 20 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 14 | 131 | 13 | 13 | 0 | 505 | 613 | 817 | 921 | 854 | 973 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | off | off | off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off |
High Tide | 7:38AM2.16m | 8:14PM2.11m | 8:14AM2.20m | 8:39PM2.14m | 8:52AM2.18m | |||||||||||||||||
Low Tide | 2:01PM0.34m | 2:13AM0.58m | 2:31PM0.39m | 2:45AM0.47m | 3:01PM0.49m | |||||||||||||||||
 |  | | | | | | | | | | | |  |  | | |  | | | |  | |
 | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — |
 | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:51 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 2 |
Temp °C | 28 | 28 | 29 | 29 | 28 | 28 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 27 | 27 |
Feels °C | 28 | 29 | 30 | 30 | 29 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 27 | 27 | 27 | 26 | 26 | 27 | 26 | 25 | 26 |
Swell 1 Height (m) Direction Period (s) | SW 9 | SSW 9 | SSW 9 | SW 9 | SSW 9 | SSW 9 | SSW 9 | SW 9 | S 8 | S 9 | SW 9 | SSW 9 | S 9 | S 9 | S 8 | S 9 | SSW 9 | SSW 9 | S 9 | S 10 | SSW 9 | SSW 9 |
| kJ | 90 | 108 | 158 | 118 | 127 | 124 | 121 | 59 | 71 | 57 | 59 | 62 | 54 | 38 | 36 | 38 | 28 | 27 | 42 | 46 | 28 | 27 |
Swell 2 Height (m) Direction Period (s) | W 8 | W 8 | W 8 | W 8 | W 8 | W 7 | ENE 12 | S 10 | SW 9 | SW 9 | S 9 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 |
| kJ | 51 | 33 | 20 | 20 | 11 | 10 | 15 | 67 | 62 | 46 | 59 | 25 | 25 | 24 | 25 | 25 | 28 | 29 | 14 | 14 | 14 | 14 |
Swell 3 Height (m) Direction Period (s) | ENE 13 | ENE 13 | ENE 13 | ENE 13 | ENE 13 | ENE 13 | W 7 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 11 | SSW 10 | — | — | — | — | — | SW 10 |
| kJ | 17 | 17 | 17 | 17 | 16 | 16 | 4 | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 10 | — | — | — | — | — | 15 |
Wind waves Height (m) Direction Period (s) | SE 7 | SE 7 | ESE 7 | SE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | E 7 | E 7 | E 7 | ESE 8 | ESE 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 |
| kJ | 248 | 205 | 146 | 132 | 105 | 123 | 96 | 91 | 84 | 84 | 94 | 97 | 131 | 183 | 304 | 412 | 505 | 613 | 817 | 921 | 854 | 973 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 608 | 14 | 608 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 9 | 683 | 618 | 621 | 618 | 650 | 995 | 796 | 608 | 608 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||
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