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Surf Forecasts:
4 Bobs surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 6 pm Saturday 06 Dec 2025 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
29.5° C
(Which is slightly warmer than usual)How big are the waves at 4 Bobs today?
The current surf forecast for 4 Bobs at 9PM is: 0.9m 12s primary swell from a Southwest direction and 0.5m 15s secondary swell from a South direction (forecast issued at 06:00pm December 06). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (06 Dec) | - | - |
| Afternoon (06 Dec) | 3ft (0.9m) | 12s |
| Evening (06 Dec) | 3ft (0.9m) | 12s |
Table - waves today at 4 Bobs. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 06 | Sunday 07 | Monday 08 | Tuesday 09 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 12 | 12 | 14 | 12 | 12 | 13 | 13 | 12 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 175 | 251 | 180 | 140 | 158 | 180 | 245 | 255 | 252 | 243 | 322 | 314 | 381 | 432 | 427 | 489 | 459 | 435 | 485 | 543 | 472 | 466 | 466 | 529 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | cross- off | off | off | off | off | cross- off | cross- off | cross- off | cross | cross | cross- off | cross- off | off | off | cross- off | cross- off | cross | cross- off | cross- off | off | off | off |
High Tide / height (m) | 7:11PM 1.40 | 7:43AM 0.79 | 7:58PM 1.36 | 8:32AM 0.79 | 8:46PM 1.28 | 9:25AM 0.78 | ||||||||||||||||||
Low Tide / height (m) | 1:47AM -0.03 | 1:06PM 0.02 | 2:33AM 0.00 | 1:54PM 0.07 | 3:18AM 0.06 | |||||||||||||||||||
Saturday 06 | Sunday 07 | Monday 08 | Tuesday 09 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:05 | - | - | - | - | - | - | - | 6:07 | - | - | - | - | - | - | - | 6:07 | - | - |
| Sunset | 6:20 | - | - | - | - | - | - | - | 6:20 | - | - | - | - | - | - | - | 6:21 | - | - | - | - | - | - | - |
 |  | | | | | | |  | | | | | | | | | |  | | |  |  |  | |
Rain (mm) | 1 | 3 | 5 | 4 | 1 | 3 | 1 | 1 | 6 | 3 | 4 | 2 | 1 | 2 | 1 | 4 | 5 | 3 | 2 | 2 | 2 | 2 | 2 | - |
| Temp. °C | 28 | 28 | 27 | 27 | 26 | 26 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 25 | 26 | 26 | 25 | 25 | 26 | 25 | 24 | 24 | 24 | 25 |
| Feels °C (?) | 31 | 32 | 30 | 30 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 29 | 29 | 28 | 29 | 28 | 28 | 28 | 30 | 28 | 27 | 26 | 25 | 26 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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