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Surf Forecasts:
4 Bobs surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 6 pm Saturday 25 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
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 12AM is: 1.6m 16s primary swell from a South direction and 0.4m 13s secondary swell from a Southwest direction (forecast issued at 06:00pm April 25). The wind direction is predicted to be glassy and the swell rating is 4.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (26 Apr) | - | - |
| Afternoon (26 Apr) | 3.5ft (1.0m) | 18s |
| Evening (26 Apr) | 4.5ft (1.3m) | 17s |
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 36mm), heaviest during Sat night. Warm (max 29°C on Sat afternoon, min 25°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Sat 25 | Sunday 26 | Monday 27 | Tue 28 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
S 18 | SSW 17 | SSW 17 | S 16 | S 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | S 14 | S 13 | S 13 | SSW 13 | S 13 | S 13 | SSW 13 | S 12 | S 12 | S 12 | S 12 | S 12 | |
768 | 908 | 973 | 1533 | 1477 | 1012 | 1581 | 1480 | 1257 | 1223 | 1075 | 1075 | 990 | 799 | 787 | 679 | 573 | 564 | 484 | 439 | 425 | 411 | 333 | 322 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | glassy | cross-off | cross-off | off | off | off | glassy | cross | cross | cross | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross | glassy | |
High Tide | 2:29AM0.72m | 2:31PM0.92m | 3:33AM0.84m | 3:36PM0.92m | 4:21AM0.96m | |||||||||||||||||||
Low Tide | 8:01PM0.30m | 7:35AM0.42m | 9:12PM0.27m | 9:24AM0.38m | 9:57PM0.24m | 10:30AM0.31m | ||||||||||||||||||
 |  |  |  | |  |  |  |  |  | | | | | | | | | | | | | | | |
 | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — |
 | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | 6:21 |
— | — | 1 | 7 | 9 | 10 | 2 | — | — | — | — | 1 | — | — | — | — | — | — | 1 | 4 | 1 | — | — | — | |
Temp °C | 29 | 29 | 28 | 28 | 25 | 25 | 26 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 26 | 27 | 28 | 28 |
33 | 33 | 32 | 32 | 26 | 28 | 30 | 29 | 32 | 33 | 32 | 30 | 30 | 30 | 30 | 32 | 32 | 32 | 33 | 30 | 28 | 30 | 32 | 32 | |
Swell 1 Height (m) Direction Period (s) | S 12 | SSW 17 | SSW 17 | S 16 | S 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | S 14 | S 13 | S 13 | SSW 13 | S 13 | S 13 | SSW 13 | S 12 | S 12 | S 12 | S 12 | S 12 |
 kJ | 403 | 908 | 973 | 1533 | 1477 | 1012 | 1581 | 1480 | 1257 | 1223 | 1075 | 1075 | 990 | 799 | 787 | 679 | 573 | 564 | 484 | 439 | 425 | 411 | 333 | 322 |
Swell 2 Height (m) Direction Period (s) | S 18 | S 12 | S 12 | SW 13 | SW 13 | S 10 | SW 13 | — | — | SW 15 | S 21 | SW 18 | S 19 | S 19 | S 18 | S 18 | S 18 | S 17 | S 16 | S 16 | S 16 | S 15 | S 15 | S 14 |
| kJ | 768 | 396 | 389 | 44 | 61 | 216 | 27 | — | — | 8 | 9 | 13 | 29 | 29 | 58 | 97 | 150 | 212 | 190 | 251 | 245 | 302 | 279 | 206 |
Swell 3 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 13 | SW 16 | SW 13 | SW 13 | — | — | — | — | S 21 | — | W 15 | S 24 | SW 24 | SW 23 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 22 | SSW 22 | S 21 |
| kJ | 46 | 46 | 44 | 10 | 44 | 61 | — | — | — | — | 9 | — | 4 | 11 | 22 | 21 | 46 | 11 | 42 | 41 | 41 | 93 | 154 | 223 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSE 3 | SSE 3 | SSE 4 | SSE 4 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 4 | 5 | 5 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 80 | 10 | 10 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 11 | 103 | 155 | 11 | 103 | 103 | 155 | 11 | 29 | 2 | 2 | 0 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
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