Surf Forecasts:
How big are the waves at Thunders today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 7ft (2.1m), 14s period with SSW swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 6.5ft (2.0m), 14s period with SSW swell.
- Evening surf: Evening surf (21 Sep, local time) - 6ft (1.8m), 13s period with SSW swell.
The current surf forecast for Thunders at 8AM is: 2.1m 14s primary swell from a South-southwest direction and 0.2m 16s secondary swell from a West direction, 1.2m 7s secondary swell from a Southeast direction (forecast issued at 12:00am September 21). The wind direction is predicted to be cross-onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 7ft (2.1m) | 14s |
| Afternoon (21 Sep) | 6.5ft (2.0m) | 14s |
| Evening (21 Sep) | 6ft (1.8m) | 13s |
Table - waves today at Thunders. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Tue morning. Warm (max 27°C on Mon morning, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 23 | ||||||||||||||||||||||
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) | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | S 13 | S 13 | S 13 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 1913 | 1826 | 1748 | 1680 | 1462 | 1347 | 1327 | 1179 | 659 | 987 | 956 | 917 | 768 | 1026 | 1735 | 1421 | 1816 | 1772 | 1750 | 1684 | 1412 | 1225 | 1145 | 996 |
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 | cross-on | cross-on | cross-on |
High Tide | 1:20AM0.66m | 3:13PM0.40m | 2:48AM0.70m | 4:06PM0.48m | 3:43AM0.76m | 4:38PM0.58m | ||||||||||||||||||
Low Tide | 9:55AM0.30m | 6:45PM0.36m | 10:19AM0.25m | 8:51PM0.34m | 10:39AM0.20m | 9:56PM0.29m | ||||||||||||||||||
 |  |  | | | | | | | | | | | |  | | | |  |  | | | | | |
 | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — |
mm | — | — | 1 | 1 | 1 | 1 | — | — | — | — | 1 | 1 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 26 |
Feels °C | 28 | 28 | 28 | 28 | 29 | 29 | 27 | 27 | 28 | 27 | 27 | 28 | 29 | 29 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SW 19 | SSW 13 | SSW 13 | SSW 19 | SSW 19 | SSW 19 | SW 12 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 |
| kJ | 1913 | 1826 | 1748 | 1680 | 1462 | 1347 | 96 | 1179 | 659 | 231 | 455 | 549 | 358 | 1026 | 1735 | 1421 | 1816 | 1772 | 1750 | 1684 | 1412 | 1225 | 1145 | 996 |
Swell 2 Height (m) Direction Period (s) | W 16 | W 16 | W 16 | W 16 | W 16 | SSW 20 | W 15 | SW 19 | SSW 18 | NW 9 | NW 9 | NW 9 | SSW 18 | SSW 12 | SSW 12 | SSW 12 | WNW 8 | — | — | — | WNW 8 | S 9 | NW 8 | NW 8 |
| kJ | 5 | 20 | 20 | 20 | 20 | 37 | 18 | 93 | 134 | 3 | 3 | 3 | 768 | 320 | 180 | 184 | 7 | — | — | — | 6 | 23 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | — | S 21 | S 21 | SW 20 | SW 20 | W 16 | W 15 | W 15 | W 15 | W 15 | W 14 | W 14 | NW 9 | WNW 14 | WNW 9 | NW 8 | — | — | — | — | — | — | — | — |
| kJ | — | 9 | 9 | 16 | 15 | 19 | 18 | 17 | 17 | 4 | 4 | 4 | 3 | 20 | 7 | 3 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSW 13 | SSE 7 | SSE 7 | S 13 | S 13 | S 13 | SSE 7 | SSE 7 | SSE 8 | SSE 8 | SSE 8 | SSE 7 | SSE 7 | SSE 8 | SSE 8 | SSE 7 | SSE 8 | SSE 7 |
| kJ | 88 | 91 | 120 | 145 | 116 | 142 | 1327 | 135 | 139 | 987 | 956 | 917 | 139 | 143 | 151 | 191 | 186 | 181 | 157 | 161 | 161 | 118 | 151 | 147 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 3 | 62 | 168 | 62 | 62 | 174 | 475 | 475 | 168 | 173 | 168 | 168 | 62 | 62 | 62 | 135 | 168 | 173 | 233 | 168 | 168 | 538 | 475 | 168 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
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