Surf Forecasts:
How big are the waves at 4 Bobs today (20 Oct):
- Afternoon surf: Afternoon surf (20 Oct, local time) - 6.5ft (2.0m), 14s period with SSW swell.
- Evening surf: Evening surf (20 Oct, local time) - 5.5ft (1.7m), 14s period with SSW swell.
The current surf forecast for 4 Bobs at 11PM is: 1.7m 13s primary swell from a South-southwest direction and 0.2m 24s secondary swell from a South-southwest direction, 0.8m 6s secondary swell from a South-southeast direction (forecast issued at 06:00pm October 20). The wind direction is predicted to be cross-onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Oct) | - | - |
| Afternoon (20 Oct) | 6.5ft (2.0m) | 14s |
| Evening (20 Oct) | 5.5ft (1.7m) | 14s |
Table - waves today at 4 Bobs. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 20mm), heaviest during Tue afternoon. Warm (max 28°C on Thu morning, min 26°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Tue 20 | Wednesday 21 | Thursday 22 | |||||||||||||||||
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 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 20 | SSW 19 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | S 21 |
Wave Graph  | |||||||||||||||||||
 kJ | 1454 | 1064 | 1033 | 850 | 756 | 745 | 745 | 649 | 504 | 596 | 590 | 424 | 603 | 897 | 897 | 576 | 612 | 798 | 1050 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | 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 | on | on | cross-on |
High Tide | 2:40PM0.60m | 2:19AM0.82m | 3:34PM0.71m | 3:19AM0.87m | 4:11PM0.84m | ||||||||||||||
Low Tide | 6:36PM0.47m | 8:40AM0.34m | 8:22PM0.45m | 9:26AM0.28m | 9:36PM0.37m | ||||||||||||||
 |  | |  | | | | |  | | | | |  | |  | |  | | |
 | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — |
 | 6:12 | — | — | — | — | — | — | — | 6:12 | — | — | — | — | — | — | — | 6:12 | — | — |
mm | 2 | 3 | 2 | — | — | 2 | 3 | 1 | — | — | — | — | — | — | 1 | — | — | — | 2 |
Temp °C | 27 | 27 | 27 | 27 | 27 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 27 | 27 |
Feels °C | 29 | 30 | 30 | 31 | 31 | 29 | 30 | 29 | 29 | 29 | 30 | 31 | 30 | 29 | 29 | 31 | 30 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 18 | S 13 | SSW 17 | SSW 16 | SSW 16 | SSW 16 |
| kJ | 1454 | 1064 | 1033 | 850 | 756 | 745 | 745 | 649 | 504 | 481 | 371 | 309 | 309 | 897 | 633 | 576 | 612 | 798 | 1042 |
Swell 2 Height (m) Direction Period (s) | S 26 | SW 24 | SSW 24 | SSW 24 | SW 23 | SSW 22 | SSW 21 | SSW 21 | SSW 20 | SSW 20 | SSW 19 | SSW 19 | SSW 18 | SSW 12 | SSW 18 | SSW 13 | SSW 12 | SSW 21 | S 21 |
| kJ | 13 | 23 | 54 | 108 | 138 | 308 | 305 | 260 | 346 | 596 | 590 | 424 | 603 | 268 | 897 | 286 | 233 | 721 | 1050 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SW 19 | W 9 | — | W 9 | SW 18 | W 8 | SW 18 | W 8 | S 20 | S 21 | SSW 12 | SSW 12 |
| kJ | — | — | — | — | — | — | — | 15 | 2 | — | 2 | 49 | 1 | 12 | 1 | 299 | 428 | 180 | 180 |
Wind waves Height (m) Direction Period (s) | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 5 | SSE 5 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 |
| kJ | 36 | 45 | 45 | 36 | 39 | 47 | 33 | 48 | 58 | 64 | 85 | 96 | 99 | 108 | 70 | 118 | 111 | 111 | 139 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 7 | 7 | 7 | 2 | 2 | 7 | 7 | 7 | 7 | 7 | 7 | 2 | 7 | 7 | 7 | 7 | 389 | 389 | 7 |
Best forecast wave conditions in Mentawi Islands | |||||||||||||||||||
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