Surf Forecasts:
How big are the waves at Thunders today (31 Aug):
- Morning surf: Morning surf (31 Aug, local time) - 6ft (1.8m), 18s period with SW swell.
- Afternoon surf: Afternoon surf (31 Aug, local time) - 7ft (2.1m), 18s period with SW swell.
- Evening surf: Evening surf (31 Aug, local time) - 7ft (2.2m), 18s period with SW swell.
The current surf forecast for Thunders at 7AM is: 1.7m 18s primary swell from a Southwest direction and 0.6m 12s secondary swell from a Southwest direction, 1.2m 12s secondary swell from a South direction (forecast issued at 12:00am August 31). The wind direction is predicted to be cross-onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Aug) | 6ft (1.8m) | 18s |
| Afternoon (31 Aug) | 7ft (2.1m) | 18s |
| Evening (31 Aug) | 7ft (2.2m) | 18s |
Table - waves today at Thunders. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 30mm), heaviest during Tue night. Warm (max 29°C on Tue morning, min 27°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | ||||||||||||||||||||||
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 | 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) | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SSW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 1321 | 1536 | 1798 | 2101 | 2457 | 2660 | 3028 | 2994 | 3123 | 3269 | 3859 | 3119 | 2810 | 2742 | 2709 | 2386 | 2357 | 2187 | 2008 | 1829 | 1571 | 1571 | 1552 | 1317 |
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 | 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 | 7:36AM0.88m | 8:06PM0.93m | 8:08AM0.81m | 8:40PM0.94m | 8:41AM0.73m | 9:19PM0.94m | ||||||||||||||||||
Low Tide | 1:33AM0.11m | 1:44PM0.02m | 2:12AM0.11m | 2:11PM0.03m | 2:54AM0.13m | 2:39PM0.05m | ||||||||||||||||||
 | |  | | |  | |  | |  | | | | | | | |  | | | | | | | |
 | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:21 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — |
mm | — | — | 1 | 2 | 1 | — | — | — | — | 2 | 2 | 1 | 1 | — | — | — | — | — | 5 | 4 | 5 | 3 | 3 | 2 |
Temp °C | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 29 | 29 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 |
Feels °C | 29 | 29 | 29 | 30 | 30 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 30 | 31 | 31 | 29 | 29 | 29 | 28 | 30 | 30 | 30 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SSW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 |
| kJ | 1321 | 1536 | 1798 | 2101 | 2457 | 2660 | 3028 | 2994 | 3123 | 3269 | 3859 | 3119 | 2810 | 2742 | 2709 | 2386 | 2357 | 2187 | 2008 | 1829 | 1571 | 1571 | 1552 | 1317 |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | S 12 | WNW 10 | WNW 10 | S 11 | S 11 | S 11 | — | — | — | — | W 18 | W 18 | W 18 | SSE 8 | W 17 | W 17 | W 17 | W 16 | W 16 | W 16 | W 16 |
| kJ | 120 | 120 | 95 | 271 | 9 | 9 | 38 | 37 | 36 | — | — | — | — | 25 | 55 | 24 | 99 | 53 | 52 | 50 | 21 | 21 | 21 | 21 |
Swell 3 Height (m) Direction Period (s) | WNW 10 | WNW 10 | WNW 9 | SW 12 | W 19 | W 19 | WNW 10 | WNW 10 | — | — | — | — | — | — | — | — | W 18 | — | — | — | — | — | W 16 | — |
| kJ | 9 | 9 | 9 | 92 | 7 | 7 | 9 | 9 | — | — | — | — | — | — | — | — | 24 | — | — | — | — | — | 21 | — |
Wind waves Height (m) Direction Period (s) | S 12 | S 12 | S 12 | SSE 5 | SSE 11 | SSE 11 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | — | SSE 8 | SSE 8 | SSE 8 | SSE 7 | SSE 7 | SSE 7 | SSE 7 |
| kJ | 418 | 411 | 404 | 27 | 400 | 337 | 211 | 169 | 166 | 243 | 203 | 208 | 203 | 168 | 153 | 133 | — | 102 | 110 | 133 | 102 | 102 | 84 | 91 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 3 | 168 | 168 | 168 | 62 | 649 | 475 | 32 | 168 | 233 | 168 | 168 | 168 | 62 | 62 | 32 | 32 | 62 | 32 | 32 | 62 | 32 | 3 | 3 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||||||
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