Surf Forecasts:
How big are the waves at 4 Bobs today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 7ft (2.2m), 15s period with SSW swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 6.5ft (2.0m), 15s period with SSW swell.
- Evening surf: Evening surf (21 Aug, local time) - 8ft (2.5m), 16s period with SSW swell.
The current surf forecast for 4 Bobs at 6AM is: 2.3m 15s primary swell from a South-southwest direction and 0.7m 20s secondary swell from a South direction, 0.5m 4s secondary swell from a South-southeast direction (forecast issued at 12:00am August 21). The wind direction is predicted to be cross-onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 7ft (2.2m) | 15s |
| Afternoon (21 Aug) | 6.5ft (2.0m) | 15s |
| Evening (21 Aug) | 8ft (2.5m) | 16s |
Table - waves today at 4 Bobs. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 11mm), heaviest on Fri night. Warm (max 28°C on Thu night, min 27°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 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 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 2887 | 2423 | 2241 | 1937 | 1648 | 1950 | 1843 | 3139 | 3298 | 2895 | 3133 | 2793 | 2386 | 2140 | 2111 | 1851 | 1667 | 1592 | 1724 | 1462 | 1400 | 1400 | 889 | 1156 |
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 | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on |
High Tide | 11:55PM0.90m | 11:18AM0.55m | 1:13AM0.85m | 1:48PM0.49m | 2:42AM0.85m | 3:37PM0.51m | ||||||||||||||||||
Low Tide | 5:56AM0.41m | 5:11PM0.28m | 7:35AM0.45m | 6:09PM0.34m | 11:10AM0.39m | 7:39PM0.37m | ||||||||||||||||||
 | |  |  | | |  | | | | | | | |  | | | |  | | | | | | |
 | — | 6:24 | — | — | — | — | — | — | — | 6:24 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:27 | — | — | — | — | — | — | — | 6:27 | — | — | — | — | — | — | — | 6:27 | — | — |
mm | — | — | — | — | — | — | 1 | 2 | 2 | 1 | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 1 | — | — | — |
Temp °C | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 27 |
Feels °C | 30 | 30 | 30 | 30 | 30 | 31 | 31 | 29 | 29 | 28 | 28 | 29 | 30 | 30 | 30 | 31 | 30 | 30 | 29 | 29 | 29 | 29 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
| kJ | 2887 | 2423 | 2241 | 1937 | 1648 | 1950 | 1195 | 3139 | 3298 | 2895 | 3133 | 2793 | 2386 | 2140 | 2111 | 1851 | 1667 | 1592 | 1724 | 1462 | 1400 | 1400 | 889 | 1156 |
Swell 2 Height (m) Direction Period (s) | SSW 22 | S 21 | SSW 20 | SSW 19 | SSW 18 | SSW 18 | SSW 17 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | SSW 24 | SSW 24 | S 18 | SSW 21 | SSW 21 | SSW 19 | SSW 19 | SSW 19 | SSW 18 | SSW 18 |
| kJ | 91 | 221 | 507 | 949 | 1169 | 1106 | 1843 | 10 | 10 | 9 | 9 | 9 | 8 | 7 | 108 | 108 | 225 | 476 | 359 | 627 | 1011 | 949 | 817 | 983 |
Swell 3 Height (m) Direction Period (s) | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | W 16 | W 16 | W 16 | W 16 | — | S 26 | SSW 24 | WNW 8 | WNW 8 | SSW 22 | S 18 | WNW 9 | WNW 8 | SSW 16 | SSW 16 | WNW 8 | WNW 8 |
| kJ | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 5 | 5 | 5 | 5 | — | 13 | 55 | 7 | 7 | 265 | 225 | 7 | 7 | 85 | 50 | 6 | 6 |
Wind waves Height (m) Direction Period (s) | — | SSE 4 | SSE 5 | SSE 5 | SSE 5 | SSE 5 | SSE 5 | SSE 5 | SSE 4 | SSE 5 | — | — | — | — | — | — | — | — | — | SSE 5 | SSE 6 | SSE 6 | SSE 6 | — |
| kJ | — | 12 | 12 | 15 | 21 | 14 | 14 | 15 | 14 | 35 | — | — | — | — | — | — | — | — | — | 51 | 58 | 55 | 64 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 324 | 341 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 103 | 7 | 7 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
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