Surf Forecasts:
How big are the waves at 4 Bobs today (20 Aug):
- Morning surf: Morning surf (20 Aug, local time) - 10ft (3.0m), 16s period with SSW swell.
- Afternoon surf: Afternoon surf (20 Aug, local time) - 8ft (2.5m), 16s period with SSW swell.
- Evening surf: Evening surf (20 Aug, local time) - 8ft (2.5m), 16s period with SSW swell.
The current surf forecast for 4 Bobs at 5AM is: 3.0m 16s primary swell from a South-southwest direction and 0.4m 10s secondary swell from a West direction (forecast issued at 12:00am August 20). The wind direction is predicted to be glassy and the swell rating is 5.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | 10ft (3.0m) | 16s |
| Afternoon (20 Aug) | 8ft (2.5m) | 16s |
| Evening (20 Aug) | 8ft (2.5m) | 16s |
Table - waves today at 4 Bobs. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 12mm), heaviest on Wed night. Warm (max 28°C on Thu afternoon, min 27°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||||||||||
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 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | 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 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 5119 | 4655 | 4136 | 4086 | 3659 | 3378 | 3113 | 2961 | 2887 | 2423 | 2241 | 1937 | 1648 | 1716 | 1843 | 3005 | 2931 | 2801 | 2903 | 2793 | 2386 | 2140 | 2111 | 1851 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross-on | cross-on | cross-on | cross-on | cross-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 | on | on | on | on |
High Tide | 11:00PM0.97m | 10:39AM0.65m | 11:55PM0.90m | 11:18AM0.55m | 1:13AM0.85m | 1:48PM0.49m | ||||||||||||||||||
Low Tide | 4:57AM0.34m | 4:30PM0.22m | 5:56AM0.41m | 5:11PM0.28m | 7:35AM0.45m | 6:09PM0.34m | ||||||||||||||||||
 | |  | | |  |  | | | | | | |  |  | | | | | | | | | | |
 | — | 6:24 | — | — | — | — | — | — | — | 6:24 | — | — | — | — | — | — | — | 6:24 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:27 | — | — | — | — | — | — | — | 6:27 | — | — | — | — | — | — | — | 6:27 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 2 | 1 | 1 | 2 | 1 | — | — | 1 |
Temp °C | 27 | 27 | 27 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 |
Feels °C | 31 | 31 | 30 | 29 | 29 | 30 | 29 | 29 | 30 | 30 | 30 | 30 | 31 | 30 | 31 | 30 | 30 | 30 | 30 | 29 | 31 | 30 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | 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 |
| kJ | 5119 | 4655 | 4136 | 4086 | 3659 | 3378 | 3113 | 2961 | 2887 | 2423 | 2241 | 1937 | 1648 | 1716 | 1843 | 3005 | 2931 | 2801 | 2903 | 2793 | 2386 | 2140 | 2111 | 1851 |
Swell 2 Height (m) Direction Period (s) | WSW 10 | W 10 | WSW 10 | W 10 | WNW 10 | WNW 11 | WNW 11 | WNW 11 | SSW 22 | S 21 | SSW 20 | SSW 19 | SSW 18 | SSW 18 | SSW 14 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | SSW 24 | SSW 24 |
| kJ | 33 | 31 | 33 | 50 | 20 | 22 | 23 | 22 | 91 | 221 | 507 | 949 | 1169 | 1106 | 971 | 10 | 10 | 9 | 9 | 9 | 8 | 7 | 108 | 108 |
Swell 3 Height (m) Direction Period (s) | WNW 10 | WNW 10 | — | — | — | — | — | S 22 | 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 |
| kJ | 19 | 19 | — | — | — | — | — | 37 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 5 | 5 | 5 | 5 | — | 13 | 55 | 7 | 7 |
Wind waves Height (m) Direction Period (s) | — | — | — | WSW 10 | — | SW 10 | SW 11 | WSW 11 | SSE 5 | SSE 5 | SSE 5 | SSE 5 | SSE 5 | SSE 5 | SSE 5 | SSE 5 | SSE 5 | SSE 5 | — | — | — | — | — | — |
| kJ | — | — | — | 39 | — | 28 | 29 | 46 | 17 | 17 | 20 | 30 | 31 | 31 | 30 | 28 | 33 | 36 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
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