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Surf Forecasts:
4 Bobs surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 6 pm Tuesday 12 May 2026 WIBForecast update in hr min s Forecast update imminent
4 Bobs surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's 4 Bobs sea temperature is
30.2° C
(Which is slightly warmer than usual)How big are the waves at 4 Bobs today?
The current surf forecast for 4 Bobs at 11PM is: 1.6m 15s primary swell from a Southwest direction and 0.5m 8s secondary swell from a South-southeast direction (forecast issued at 06:00pm May 12). The wind direction is predicted to be onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | - | - |
| Afternoon (12 May) | 4.5ft (1.4m) | 15s |
| Evening (12 May) | 5ft (1.6m) | 15s |
Table - waves today at 4 Bobs. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 28mm), heaviest during Thu afternoon. Warm (max 29°C on Tue afternoon, min 26°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Tue 12 | Wednesday 13 | Thursday 14 | Fri 15 | |||||||||||||||||||||
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 | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 16 | SW 15 | SW 15 | SSW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 14 | SSW 16 | SSW 15 | SSW 14 | |
1208 | 1163 | 1059 | 974 | 846 | 846 | 834 | 822 | 710 | 690 | 690 | 779 | 779 | 768 | 863 | 863 | 779 | 889 | 889 | 606 | 788 | 1376 | 1400 | 1076 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | on | on | on | glassy | glassy | glassy | glassy | glassy | glassy | glassy | off | off | off | off | cross-off | cross | glassy | glassy | cross-off | off | off | off | |
High Tide | 2:28PM0.85m | 3:33AM0.92m | 3:29PM0.86m | 4:13AM1.06m | 4:21PM0.87m | 4:53AM1.19m | ||||||||||||||||||
Low Tide | 8:34PM0.24m | 9:14AM0.35m | 9:22PM0.18m | 10:16AM0.24m | 10:06PM0.12m | 11:09AM0.12m | ||||||||||||||||||
 |  |  | |  |  |  | | | |  | | | | |  | |  | | |  | | | | |
 | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — |
 | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | 6:20 |
— | — | 1 | 1 | — | — | 2 | 1 | — | 1 | — | 3 | 1 | 1 | — | — | 4 | 6 | 2 | 2 | 1 | — | 1 | 1 | |
Temp °C | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 28 | 28 | 27 | 27 | 28 | 28 | 28 | 27 | 26 | 26 | 26 | 27 | 28 |
33 | 33 | 32 | 32 | 32 | 33 | 32 | 33 | 34 | 34 | 32 | 32 | 31 | 29 | 30 | 32 | 31 | 31 | 32 | 31 | 30 | 29 | 30 | 31 | |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 15 | SW 15 | SSW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 14 | SSW 16 | SSW 15 | SSW 14 |
 kJ | 1208 | 1163 | 1059 | 974 | 846 | 846 | 834 | 822 | 710 | 690 | 690 | 779 | 779 | 768 | 863 | 863 | 779 | 889 | 889 | 606 | 788 | 1376 | 1400 | 1076 |
Swell 2 Height (m) Direction Period (s) | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | W 8 | W 8 | W 9 | W 9 | W 9 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | S 18 | SSW 17 | S 16 | SSW 16 | W 8 | W 8 | W 8 |
| kJ | 35 | 35 | 36 | 24 | 21 | 18 | 18 | 25 | 38 | 37 | 35 | 33 | 33 | 32 | 32 | 32 | 32 | 227 | 394 | 529 | 350 | 32 | 34 | 50 |
Swell 3 Height (m) Direction Period (s) | W 8 | W 8 | W 8 | W 8 | W 8 | SSE 7 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 7 | SE 7 | SE 7 | S 18 | W 8 | W 8 | SW 16 | SW 16 | SW 16 | SSE 7 | SSE 8 |
| kJ | 12 | 21 | 20 | 19 | 18 | 17 | 23 | 19 | 21 | 21 | 20 | 19 | 22 | 21 | 26 | 26 | 162 | 32 | 32 | 127 | 264 | 127 | 9 | 27 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 7 | 7 | 7 | 7 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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