Surf Forecasts:
How big are the waves at Thunders today (20 Aug):
- Morning surf: Morning surf (20 Aug, local time) - 10ft (3.0m), 16s period with SSW swell.
- Afternoon surf: Afternoon surf (20 Aug, local time) - 8ft (2.5m), 16s period with SSW swell.
- Evening surf: Evening surf (20 Aug, local time) - 8ft (2.5m), 16s period with SSW swell.
The current surf forecast for Thunders at 5PM is: 2.5m 16s primary swell from a South-southwest direction and 0.3m 10s secondary swell from a West-northwest direction (forecast issued at 12:00pm August 20). The wind direction is predicted to be cross-onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | 10ft (3.0m) | 16s |
| Afternoon (20 Aug) | 8ft (2.5m) | 16s |
| Evening (20 Aug) | 8ft (2.5m) | 16s |
Table - waves today at Thunders. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 8mm), mostly falling on Thu night. Warm (max 29°C on Sat afternoon, min 26°C on Thu night). Wind will be generally light. | |||||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | |||||||||||||||||||
10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 16 | SSW 15 | SSW 15 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3786 | 3740 | 3378 | 3113 | 2924 | 2756 | 2423 | 2271 | 1737 | 1896 | 1677 | 3317 | 3197 | 2931 | 2859 | 2866 | 2722 | 2354 | 2048 | 2048 | 1966 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 10:13AM0.51m | 11:30PM0.74m | 10:46AM0.42m | 00:41AM0.70m | 12:37PM0.36m | ||||||||||||||||
Low Tide | 4:04PM0.18m | 6:14AM0.35m | 4:37PM0.23m | 9:27AM0.35m | 5:30PM0.27m | ||||||||||||||||
 | | |  |  | | |  | | | | | | | |  | | | | | | |
 | 6:22 | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — |
 | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — |
mm | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | 1 | — | — |
Temp °C | 27 | 28 | 28 | 27 | 27 | 26 | 27 | 27 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 29 | 27 | 27 |
Feels °C | 29 | 29 | 29 | 29 | 29 | 28 | 30 | 30 | 29 | 30 | 30 | 28 | 28 | 29 | 29 | 29 | 30 | 29 | 31 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 16 | SSW 15 | SSW 15 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 |
| kJ | 3786 | 3740 | 3378 | 3113 | 2924 | 2756 | 2423 | 2271 | 1737 | 1896 | 1677 | 3317 | 3197 | 2931 | 2859 | 2866 | 2722 | 2354 | 2048 | 2048 | 1966 |
Swell 2 Height (m) Direction Period (s) | WNW 10 | WNW 10 | WNW 10 | W 18 | SSW 22 | S 21 | S 20 | SSW 20 | SSW 19 | SSW 18 | SSW 18 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | SSW 24 | SSW 24 | SSW 18 |
| kJ | 19 | 19 | 19 | 24 | 91 | 225 | 384 | 634 | 1234 | 1118 | 1480 | 22 | 22 | 22 | 20 | 10 | 9 | 9 | 55 | 108 | 108 |
Swell 3 Height (m) Direction Period (s) | — | W 18 | W 18 | W 18 | W 18 | WNW 11 | WNW 11 | WNW 10 | WNW 11 | WNW 11 | WNW 11 | W 16 | W 16 | W 16 | W 16 | W 16 | W 16 | W 16 | WNW 10 | WNW 9 | SSW 23 |
| kJ | — | 24 | 24 | 24 | 24 | 23 | 22 | 22 | 22 | 22 | 22 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 9 | 8 | 104 |
Wind waves Height (m) Direction Period (s) | — | — | — | WSW 10 | WSW 11 | SSE 4 | SSE 4 | SSE 5 | SSE 5 | SSE 5 | SSE 5 | SSE 5 | SSE 5 | SSE 6 | SSE 6 | — | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 |
| kJ | — | — | — | 40 | 45 | 14 | 17 | 20 | 28 | 32 | 39 | 49 | 46 | 49 | 41 | — | 44 | 46 | 58 | 75 | 77 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 3 | 62 | 168 | 173 | 32 | 31 | 9 | 9 | 62 | 62 | 168 | 168 | 168 | 168 | 168 | 168 | 168 | 135 | 62 | 9 | 62 |
Best forecast wave conditions in Mentawi Islands | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
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