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Surf Forecasts:
4 Bobs surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 6 pm Thursday 09 Apr 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
29.8° C
(Which is normal for this time of year)How big are the waves at 4 Bobs today?
The current surf forecast for 4 Bobs at 12AM is: 0.8m 15s primary swell from a South-southwest direction and 0.5m 11s secondary swell from a South-southwest direction (forecast issued at 06:00pm April 09). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Apr) | 2.5ft (0.8m) | 13s |
| Afternoon (10 Apr) | 3ft (0.9m) | 13s |
| Evening (10 Apr) | 2.5ft (0.7m) | 14s |
Table - waves today at 4 Bobs. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 09 | Friday 10 | Saturday 11 | Sunday 12 | |||||||||||||||||||||
| 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) (?) | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 20 | 20 | 20 | 19 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 215 | 212 | 272 | 288 | 181 | 179 | 239 | 366 | 286 | 429 | 206 | 206 | 494 | 480 | 471 | 361 | 350 | 345 | 334 | 260 | 373 | 455 | 373 | 365 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | off | cross- off | glass | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | glass | cross- off | cross- off | cross- off | cross- off | cross- off | glass | glass | glass |
High Tide / height (m) | 9:49PM 0.55 | 11:04AM 0.85 | 12:44AM 0.50 | 12:58PM 0.82 | 2:56AM 0.57 | |||||||||||||||||||
Low Tide / height (m) | 4:56PM 0.33 | 4:08AM 0.31 | 6:06PM 0.38 | 5:10AM 0.40 | 7:43PM 0.38 | |||||||||||||||||||
Thursday 09 | Friday 10 | Saturday 11 | Sunday 12 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:20 | - | - | - | - | - | - | - | 6:20 | - | - | - | - | - | - | - | 6:20 | - | - |
| Sunset | 6:25 | - | - | - | - | - | - | - | 6:25 | - | - | - | - | - | - | - | 6:25 | - | - | - | - | - | - | - |
 |  | |  | |  | |  | |  | | | | | | | |  | | | | | | | |
Rain (mm) | - | - | - | - | - | 1 | - | - | 3 | 1 | - | 1 | 1 | 1 | - | 1 | 1 | - | - | 2 | 4 | 4 | 1 | - |
| Temp. °C | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 28 | 28 | 29 | 29 | 28 | 27 | 27 | 27 | 28 | 28 |
| Feels °C (?) | 31 | 32 | 30 | 29 | 30 | 30 | 31 | 32 | 31 | 31 | 32 | 30 | 30 | 30 | 32 | 32 | 32 | 32 | 31 | 30 | 30 | 31 | 33 | 32 |
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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