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Surf Forecasts:
4 Bobs surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 12 am Monday 23 Mar 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
30.0° 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: 1.1m 13s primary swell from a South-southwest direction and 0.7m 15s secondary swell from a Southwest direction, 0.4m 7s secondary swell from a South-southeast direction (forecast issued at 12:00am March 23). The wind direction is predicted to be cross-onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Mar) | 4.5ft (1.4m) | 16s |
| Afternoon (23 Mar) | 4ft (1.2m) | 14s |
| Evening (23 Mar) | 4.5ft (1.4m) | 15s |
Table - waves today at 4 Bobs. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 23 | Tuesday 24 | Wednesday 25 | ||||||||||||||||||||||
| 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 | 4 PM | 7 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 14 | 14 | 14 | 13 | 16 | 16 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 577 | 362 | 293 | 396 | 1003 | 452 | 822 | 822 | 904 | 857 | 746 | 756 | 668 | 668 | 649 | 604 | 475 | 468 | 461 | 378 | 302 | 241 | 323 | 313 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | on | cross- on | cross- on | glass | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | cross- on | cross | cross | cross | cross | cross | cross | glass | cross- on | cross- on | cross |
High Tide / height (m) | 8:32PM 0.95 | 8:58AM 1.27 | 9:09PM 0.84 | 9:41AM 1.20 | 9:51PM 0.73 | 10:34AM 1.10 | ||||||||||||||||||
Low Tide / height (m) | 2:24AM -0.02 | 3:20PM 0.07 | 2:59AM 0.03 | 4:10PM 0.15 | 3:39AM 0.11 | 5:10PM 0.25 | ||||||||||||||||||
Monday 23 | Tuesday 24 | Wednesday 25 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:26 | - | - | - | - | - | - | - | 6:26 | - | - | - | - | - | - | - | 6:24 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:30 | - |
 | | |  |  | | |  | | | | | | |  | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - |
| Temp. °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 28 | 28 | 29 | 28 |
| Feels °C (?) | 30 | 30 | 30 | 30 | 31 | 31 | 31 | 31 | 31 | 31 | 30 | 30 | 30 | 31 | 30 | 31 | 31 | 31 | 30 | 30 | 31 | 31 | 32 | 30 |
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Ocean Swells (m)- Wind Speed (km/h)
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