Surf Forecasts:
How big are the waves at 4 Bobs today (31 Aug):
- Morning surf: Morning surf (31 Aug, local time) - 6ft (1.8m), 18s period with SW swell.
- Afternoon surf: Afternoon surf (31 Aug, local time) - 7ft (2.1m), 18s period with SW swell.
- Evening surf: Evening surf (31 Aug, local time) - 7ft (2.2m), 18s period with SW swell.
The current surf forecast for 4 Bobs at 10AM is: 1.8m 18s primary swell from a Southwest direction and 0.6m 12s secondary swell from a Southwest direction, 1.1m 12s secondary swell from a South direction (forecast issued at 06:00am August 31). The wind direction is predicted to be cross-onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Aug) | 6ft (1.8m) | 18s |
| Afternoon (31 Aug) | 7ft (2.1m) | 18s |
| Evening (31 Aug) | 7ft (2.2m) | 18s |
Table - waves today at 4 Bobs. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 48mm), heaviest during Wed night. Warm (max 28°C on Mon morning, min 25°C on Wed night). Wind will be generally light. | |||||||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||||||||
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 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SSW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 1553 | 1798 | 1974 | 2290 | 2660 | 2994 | 3158 | 3345 | 3269 | 4002 | 3119 | 3010 | 2776 | 2742 | 2527 | 2357 | 2187 | 2033 | 1852 | 1829 | 1571 | 1552 | 1552 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on |
High Tide | 7:55AM1.09m | 8:22PM1.14m | 8:25AM1.02m | 8:55PM1.15m | 8:56AM0.92m | 9:32PM1.14m | |||||||||||||||||
Low Tide | 1:46AM0.08m | 2:00PM0.00m | 2:25AM0.09m | 2:30PM0.01m | 3:07AM0.12m | 3:02PM0.04m | |||||||||||||||||
 |  | |  | | |  |  | | | | | | | | | | | | | | | | |
 | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — |
 | — | — | — | — | 6:24 | — | — | — | — | — | — | — | 6:24 | — | — | — | — | — | — | — | 6:23 | — | — |
mm | — | — | — | 1 | — | — | — | 1 | 1 | 2 | 2 | 2 | 1 | — | — | — | 4 | 4 | 4 | 3 | 1 | 2 | 4 |
Temp °C | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 30 | 30 | 30 | 30 | 30 | 31 | 29 | 31 | 30 | 30 | 30 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SSW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 |
| kJ | 1553 | 1798 | 1974 | 2290 | 2660 | 2994 | 3158 | 3345 | 3269 | 4002 | 3119 | 3010 | 2776 | 2742 | 2527 | 2357 | 2187 | 2033 | 1852 | 1829 | 1571 | 1552 | 1552 |
Swell 2 Height (m) Direction Period (s) | S 12 | S 12 | SW 12 | SW 12 | W 10 | S 11 | W 9 | S 11 | S 11 | WNW 9 | WNW 9 | WNW 9 | — | — | — | — | W 17 | W 17 | W 17 | WNW 8 | WNW 8 | WNW 8 | W 16 |
| kJ | 333 | 333 | 95 | 50 | 8 | 110 | 7 | 37 | 21 | 17 | 8 | 8 | — | — | — | — | 24 | 23 | 22 | 7 | 7 | 6 | 21 |
Swell 3 Height (m) Direction Period (s) | SW 12 | SW 12 | WNW 10 | WNW 10 | — | W 10 | W 18 | WNW 9 | WNW 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 120 | 95 | 9 | 9 | — | 7 | 6 | 16 | 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | S 12 | S 12 | SSE 9 | S 11 | SSE 11 | SSE 9 | SSE 9 | S 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | S 8 | S 8 |
| kJ | — | — | 341 | 330 | 206 | 275 | 286 | 169 | 211 | 169 | 206 | 206 | 169 | 166 | 154 | 144 | 133 | 127 | 130 | 133 | 137 | 131 | 127 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 7 | 7 | 7 | 7 | 489 | 389 | 131 | 155 | 155 | 155 | 7 | 12 | 103 | 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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