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Surf Forecasts:
4 Bobs surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 12 am Tuesday 28 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
30.4° C
(Which is slightly warmer than usual)How big are the waves at 4 Bobs today?
The current surf forecast for 4 Bobs at 1PM is: 1.0m 12s primary swell from a South direction and 0.7m 14s secondary swell from a South direction (forecast issued at 12:00am April 28). The wind direction is predicted to be cross-onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Apr) | 3.5ft (1.1m) | 12s |
| Afternoon (28 Apr) | 2ft (0.6m) | 20s |
| Evening (28 Apr) | 2.5ft (0.8m) | 19s |
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 23mm), heaviest during Tue night. Warm (max 29°C on Mon night, min 27°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 28 | Wednesday 29 | Thursday 30 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
S 12 | S 12 | SSW 12 | S 12 | S 12 | S 12 | S 20 | SSW 19 | SSW 18 | S 18 | S 18 | SSW 17 | SSW 16 | SSW 16 | S 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 16 | |
439 | 359 | 361 | 289 | 266 | 282 | 377 | 492 | 737 | 661 | 639 | 745 | 686 | 797 | 1175 | 711 | 1092 | 892 | 857 | 850 | 966 | 722 | 722 | 1038 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | cross-on | cross-on | cross-on | on | on | glassy | glassy | glassy | glassy | cross-off | cross-off | glassy | glassy | glassy | glassy | glassy | cross-on | glassy | glassy | glassy | glassy | cross-off | |
High Tide | 4:21AM0.96m | 4:27PM0.92m | 5:00AM1.06m | 5:11PM0.92m | 5:34AM1.14m | 5:49PM0.90m | ||||||||||||||||||
Low Tide | 10:30AM0.31m | 10:30PM0.20m | 11:15AM0.24m | 10:59PM0.17m | 11:51AM0.17m | |||||||||||||||||||
 |  |  | | |  | | | | | | |  | |  |  | | | | | |  | | | |
 | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:21 | — | — | — | — | — | — | — | 6:21 | — | — | — | — | — | — | — | 6:21 | — | — |
1 | — | 1 | 2 | 1 | — | — | — | 1 | 3 | 2 | 1 | — | — | — | — | 3 | 3 | 3 | 1 | — | — | — | 4 | |
Temp °C | 29 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 27 | 27 | 28 | 28 | 28 | 28 |
33 | 32 | 32 | 33 | 33 | 33 | 33 | 34 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 34 | 32 | 33 | 31 | 32 | 33 | 32 | 32 | 31 | |
Swell 1 Height (m) Direction Period (s) | S 12 | S 12 | SSW 12 | S 12 | S 12 | S 12 | S 10 | SSW 13 | S 13 | S 13 | S 13 | SSW 17 | SSW 16 | SSW 16 | S 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 16 |
 kJ | 439 | 359 | 361 | 289 | 266 | 274 | 125 | 367 | 490 | 414 | 314 | 745 | 686 | 797 | 1175 | 711 | 1092 | 892 | 857 | 850 | 966 | 722 | 722 | 1038 |
Swell 2 Height (m) Direction Period (s) | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | SSW 19 | SSW 18 | S 18 | S 18 | S 12 | S 12 | S 12 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SSW 16 | SSW 16 | SW 15 |
| kJ | 251 | 245 | 302 | 215 | 206 | 200 | 192 | 492 | 737 | 661 | 639 | 285 | 276 | 220 | 361 | 361 | 251 | 206 | 203 | 171 | 132 | 363 | 354 | 209 |
Swell 3 Height (m) Direction Period (s) | SW 16 | SW 16 | SSW 22 | SSW 22 | S 21 | S 20 | S 20 | S 10 | SW 15 | SW 18 | SW 18 | SW 18 | SW 13 | SW 14 | W 14 | S 11 | W 18 | W 18 | W 18 | S 18 | S 8 | S 8 | S 8 | W 16 |
| kJ | 41 | 41 | 93 | 154 | 223 | 282 | 377 | 70 | 56 | 197 | 197 | 109 | 63 | 91 | 4 | 155 | 6 | 6 | 6 | 155 | 34 | 33 | 32 | 5 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 11 | 19 | 7 | 11 | 2 | 11 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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