Surf Forecasts:
How big are the waves at Thunders today (18 Jul):
- Morning surf: Morning surf (18 Jul, local time) - 4.5ft (1.3m), 14s period with SW swell.
- Afternoon surf: Afternoon surf (18 Jul, local time) - 4ft (1.2m), 14s period with SW swell.
- Evening surf: Evening surf (18 Jul, local time) - 4ft (1.2m), 14s period with SW swell.
The current surf forecast for Thunders at 10AM is: 1.3m 14s primary swell from a Southwest direction and 0.3m 8s secondary swell from a West-northwest direction, 1.1m 7s secondary swell from a South-southeast direction (forecast issued at 06:00am July 18). The wind direction is predicted to be cross-shore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Jul) | 4.5ft (1.3m) | 14s |
| Afternoon (18 Jul) | 4ft (1.2m) | 14s |
| Evening (18 Jul) | 4ft (1.2m) | 14s |
Table - waves today at Thunders. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 31mm), heaviest during Sun afternoon. Warm (max 28°C on Sat morning, min 25°C on Sun afternoon). Wind will be generally light. | |||||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||||||||
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 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 18 | SSW 19 | SSW 17 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 667 | 667 | 667 | 597 | 573 | 540 | 532 | 525 | 517 | 465 | 458 | 451 | 516 | 891 | 1048 | 1831 | 2030 | 2189 | 1991 | 1872 | 1849 | 1826 | 1780 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | glassy | glassy | glassy | glassy | off | off | cross | cross-off | cross-off | cross-off | cross-off | off | glassy | cross-off | glassy | glassy | glassy | cross-on | cross-on |
High Tide | 8:37AM0.99m | 9:18PM0.79m | 9:16AM0.89m | 10:04PM0.81m | 9:55AM0.77m | ||||||||||||||||||
Low Tide | 2:10AM0.12m | 3:06PM0.03m | 3:01AM0.18m | 3:38PM0.07m | 3:52AM0.24m | 4:08PM0.11m | |||||||||||||||||
 |  | | |  | | |  | | | | | |  |  |  | |  |  | | | | | |
 | 6:26 | — | — | — | — | — | — | — | 6:26 | — | — | — | — | — | — | — | 6:26 | — | — | — | — | — | — |
 | — | — | — | — | 6:23 | — | — | — | — | — | — | — | 6:23 | — | — | — | — | — | — | — | 6:23 | — | — |
mm | 3 | 3 | 3 | 3 | — | 1 | 3 | — | 1 | 1 | 5 | 3 | 6 | 3 | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 27 | 26 | 25 | 25 | 26 | 25 | 25 | 25 | 27 | 28 | 28 | 27 | 27 |
Feels °C | 30 | 30 | 31 | 30 | 32 | 32 | 31 | 30 | 29 | 30 | 31 | 29 | 25 | 26 | 29 | 28 | 29 | 29 | 31 | 32 | 32 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 19 | SSW 17 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 |
| kJ | 667 | 667 | 667 | 597 | 573 | 540 | 532 | 525 | 517 | 465 | 458 | 451 | 458 | 891 | 1048 | 1831 | 2030 | 2189 | 1991 | 1872 | 1849 | 1826 | 1780 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | WNW 8 | WNW 8 | WNW 8 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SW 13 | SSW 13 | SSE 7 | SSE 7 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 7 | SSE 7 |
| kJ | 13 | 13 | 13 | 13 | 124 | 96 | 96 | 93 | 91 | 91 | 91 | 91 | 91 | 388 | 277 | 68 | 70 | 91 | 93 | 74 | 72 | 70 | 68 |
Swell 3 Height (m) Direction Period (s) | W 15 | W 15 | W 15 | W 15 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | SSW 18 | S 18 | SSW 18 | SSE 7 | SSE 7 | W 6 | W 5 | WNW 5 | WNW 7 | WNW 7 | WNW 7 | WNW 8 | WNW 8 |
| kJ | 4 | 4 | 4 | 4 | 13 | 13 | 13 | 12 | 12 | 12 | 61 | 158 | 516 | 79 | 84 | 41 | 14 | 8 | 18 | 10 | 11 | 13 | 13 |
Wind waves Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 7 | SSE 7 | — | SSE 7 | SSE 7 | SSE 7 | — | — | — | — | — | W 5 | WNW 6 | — | — | — | — | — | — | — | SE 7 |
| kJ | 110 | 105 | 113 | 131 | — | 168 | 168 | 159 | — | — | — | — | — | 55 | 83 | — | — | — | — | — | — | — | 119 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 3 | 3 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 84 | 0 | 475 | 172 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 |
Best forecast wave conditions in Mentawi Islands | |||||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||||
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