Surf Forecasts:
How big are the waves at Thunders today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 7ft (2.2m), 16s period with SW swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 7ft (2.1m), 16s period with SSW swell.
- Evening surf: Evening surf (20 Sep, local time) - 7ft (2.2m), 15s period with SSW swell.
The current surf forecast for Thunders at 6PM is: 2.1m 15s primary swell from a South-southwest direction and 0.2m 7s secondary swell from a West-northwest direction, 1.1m 7s secondary swell from a South-southeast direction (forecast issued at 12:00pm September 20). The wind direction is predicted to be cross-onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 7ft (2.2m) | 16s |
| Afternoon (20 Sep) | 7ft (2.1m) | 16s |
| Evening (20 Sep) | 7ft (2.2m) | 15s |
Table - waves today at Thunders. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 11mm), heaviest on Sun night. Warm (max 27°C on Sun morning, min 26°C on Sun morning). Wind will be generally light. | |||||||||||||||||||||
Sun 20 | Monday 21 | Tuesday 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) | SW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | S 14 | SSW 14 | SSW 13 | SSW 13 | S 13 | S 13 | SSW 13 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 17 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2262 | 2151 | 2123 | 1809 | 2140 | 1913 | 1826 | 1748 | 1680 | 1576 | 833 | 1327 | 669 | 1138 | 971 | 455 | 549 | 651 | 1026 | 1735 | 1421 |
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 | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 12:04PM0.36m | 1:20AM0.66m | 3:13PM0.40m | 2:48AM0.70m | 4:06PM0.48m | ||||||||||||||||
Low Tide | 4:32PM0.31m | 9:55AM0.30m | 6:45PM0.36m | 10:19AM0.25m | 8:51PM0.34m | ||||||||||||||||
 | |  |  |  | |  | | | |  | | | | | | | | | | | |
 | 6:09 | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — |
mm | 1 | 1 | — | — | — | — | 1 | 2 | 1 | 1 | — | — | — | — | — | — | 1 | 1 | — | — | — |
Temp °C | 26 | 27 | 27 | 26 | 27 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 27 |
Feels °C | 27 | 29 | 29 | 28 | 30 | 28 | 28 | 28 | 28 | 29 | 28 | 29 | 29 | 27 | 27 | 27 | 29 | 29 | 29 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | S 14 | SSW 14 | SW 19 | SSW 13 | S 13 | SSW 19 | SSW 13 | SSW 13 | SW 12 | S 12 | SSW 18 | SSW 17 |
| kJ | 2262 | 2151 | 2123 | 1809 | 2140 | 1913 | 1826 | 1748 | 1680 | 1576 | 833 | 96 | 669 | 1138 | 231 | 444 | 430 | 358 | 775 | 1735 | 1421 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | WNW 8 | WNW 7 | WNW 7 | W 16 | W 16 | W 16 | W 16 | W 16 | W 16 | SSW 20 | W 15 | SW 19 | SSW 18 | W 15 | SSW 19 | SSW 19 | SSW 18 | SSW 18 | SW 12 | SSW 12 |
| kJ | 6 | 6 | 5 | 5 | 5 | 5 | 20 | 20 | 20 | 20 | 37 | 18 | 93 | 134 | 4 | 455 | 549 | 651 | 1026 | 144 | 184 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | S 21 | S 21 | SW 20 | SW 20 | W 16 | W 15 | W 15 | W 15 | NW 9 | NW 9 | NW 9 | NW 9 | WNW 14 | WNW 9 | NW 8 |
| kJ | — | — | — | — | — | — | 9 | 9 | 16 | 15 | 19 | 18 | 17 | 17 | 3 | 3 | 3 | 3 | 20 | 7 | 3 |
Wind waves Height (m) Direction Period (s) | SSE 6 | SSE 6 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SE 7 | SSE 7 | SSE 7 | SSE 7 | SSW 13 | SSE 7 | SSE 7 | S 13 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 8 | SSE 8 |
| kJ | 94 | 100 | 99 | 105 | 96 | 96 | 93 | 131 | 120 | 120 | 158 | 1327 | 163 | 139 | 971 | 147 | 153 | 157 | 153 | 186 | 186 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 168 | 32 | 62 | 135 | 32 | 9 | 32 | 32 | 62 | 62 | 135 | 174 | 174 | 168 | 173 | 138 | 62 | 62 | 62 | 62 | 138 |
Best forecast wave conditions in Mentawi Islands | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
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