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Surf Forecasts:
4 Bobs surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 12 am Thursday 07 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
30.6° C
(Which is slightly warmer than usual)How big are the waves at 4 Bobs today?
The current surf forecast for 4 Bobs at 7AM is: 1.2m 18s primary swell from a Southwest direction and 1.0m 13s secondary swell from a Southwest direction (forecast issued at 12:00am May 07). The wind direction is predicted to be glassy and the swell rating is 4.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (07 May) | 3.5ft (1.1m) | 18s |
| Afternoon (07 May) | 4.5ft (1.3m) | 17s |
| Evening (07 May) | 4ft (1.2m) | 16s |
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 38mm), heaviest during Thu night. Warm (max 28°C on Wed night, min 27°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 7 | Friday 8 | Saturday 9 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SSW 17 | SSW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SSW 14 | SW 13 | SW 13 | |
486 | 808 | 915 | 799 | 905 | 975 | 875 | 757 | 757 | 929 | 917 | 894 | 860 | 640 | 623 | 536 | 536 | 529 | 476 | 401 | 395 | 328 | 257 | 261 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-on | glassy | cross-on | on | cross-on | cross-on | on | on | on | cross-on | glassy | cross | cross-on | cross | cross | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 9:13AM1.02m | 9:35PM0.61m | 9:49AM0.96m | 10:32PM0.59m | 10:36AM0.91m | |||||||||||||||||||
Low Tide | 2:31AM0.19m | 3:51PM0.22m | 3:10AM0.26m | 4:39PM0.27m | 3:56AM0.34m | 5:35PM0.30m | ||||||||||||||||||
 |  |  |  | | | | | | | | |  |  | | | | | | | | | | | |
 | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — |
— | 4 | 1 | — | 1 | 1 | 2 | 3 | 5 | 3 | 2 | — | — | — | 2 | 4 | 4 | — | 1 | 2 | — | 1 | 2 | 1 | |
Temp °C | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
32 | 31 | 33 | 31 | 32 | 31 | 31 | 31 | 31 | 31 | 30 | 31 | 32 | 30 | 31 | 30 | 31 | 31 | 31 | 31 | 30 | 30 | 29 | 30 | |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 18 | SW 18 | SW 18 | SW 18 | SSW 17 | SSW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SSW 14 | SW 13 | SW 13 |
 kJ | 377 | 808 | 915 | 799 | 905 | 975 | 875 | 757 | 757 | 929 | 917 | 894 | 860 | 640 | 623 | 536 | 536 | 529 | 476 | 401 | 395 | 328 | 257 | 261 |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | S 10 | S 10 | S 9 | S 9 | SSE 9 | SSE 9 | SSE 9 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 |
| kJ | 486 | 299 | 345 | 345 | 242 | 205 | 199 | 116 | 113 | 85 | 81 | 82 | 80 | 80 | 41 | 60 | 60 | 60 | 61 | 63 | 46 | 45 | 43 | 42 |
Swell 3 Height (m) Direction Period (s) | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | SW 13 | SW 12 | W 8 | W 8 | W 8 | W 7 | W 7 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 8 |
| kJ | 135 | 133 | 130 | 127 | 96 | 96 | 94 | 163 | 92 | 31 | 29 | 40 | 39 | 39 | 61 | 61 | 59 | 59 | 58 | 58 | 58 | 57 | 40 | 39 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNW 3 | NW 3 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 10 | 19 | 0 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 0 | 29 | 80 | 10 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
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