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Surf Forecasts:
4 Bobs surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 12 pm Monday 27 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 5PM is: 1.3m 13s primary swell from a South-southwest direction and 0.5m 17s secondary swell from a South direction, 0.5m 4s secondary swell from a Southeast direction (forecast issued at 12:00pm April 27). The wind direction is predicted to be onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 Apr) | 4.5ft (1.4m) | 13s |
| Afternoon (27 Apr) | 4.5ft (1.3m) | 13s |
| Evening (27 Apr) | 4.5ft (1.3m) | 13s |
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 29mm), heaviest during Wed night. Warm (max 29°C on Mon morning, min 26°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Mon 27 | Tuesday 28 | Wednesday 29 | Thu 30 | |||||||||||||||||||||
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 | 1 AM | 4 AM | 7 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 13 | SSW 13 | SSW 13 | S 13 | S 13 | S 12 | S 12 | S 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 | |
690 | 590 | 507 | 564 | 547 | 439 | 359 | 347 | 347 | 322 | 330 | 377 | 492 | 737 | 661 | 639 | 745 | 807 | 834 | 1175 | 711 | 1092 | 892 | 857 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | on | on | on | on | on | on | cross-on | cross-on | cross-on | glassy | on | glassy | glassy | glassy | glassy | off | glassy | cross-off | cross-off | off | glassy | cross-off | glassy | |
High Tide | 3:36PM0.92m | 4:21AM0.96m | 4:27PM0.92m | 5:00AM1.06m | 5:11PM0.92m | 5:34AM1.14m | ||||||||||||||||||
Low Tide | 9:57PM0.24m | 10:30AM0.31m | 10:30PM0.20m | 11:15AM0.24m | 10:59PM0.17m | |||||||||||||||||||
 |  | |  |  | | | | | | | | | | | |  | | |  | | | |  | |
 | 6:18 | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — |
 | — | — | 6:22 | — | — | — | — | — | — | — | 6:21 | — | — | — | — | — | — | — | 6:21 | — | — | — | — | 6:21 |
— | 1 | 2 | — | 2 | 4 | 3 | 1 | 2 | — | — | — | — | 1 | 2 | 1 | — | — | 1 | — | 4 | 5 | — | — | |
Temp °C | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 26 | 27 | 28 |
31 | 32 | 32 | 32 | 33 | 33 | 32 | 32 | 33 | 33 | 33 | 33 | 34 | 32 | 33 | 32 | 31 | 33 | 33 | 33 | 32 | 31 | 30 | 33 | |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 13 | S 13 | S 13 | S 12 | S 12 | S 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 |
 kJ | 690 | 590 | 507 | 564 | 547 | 439 | 359 | 347 | 347 | 322 | 330 | 159 | 437 | 490 | 414 | 314 | 745 | 807 | 834 | 1175 | 711 | 1092 | 892 | 857 |
Swell 2 Height (m) Direction Period (s) | S 18 | S 18 | S 18 | S 17 | S 16 | 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 |
| kJ | 58 | 97 | 150 | 212 | 190 | 251 | 245 | 302 | 215 | 206 | 200 | 192 | 492 | 737 | 661 | 639 | 285 | 224 | 220 | 306 | 361 | 251 | 206 | 203 |
Swell 3 Height (m) Direction Period (s) | SW 24 | SW 23 | SW 17 | SW 17 | SW 16 | 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 |
| kJ | 22 | 21 | 46 | 11 | 42 | 41 | 41 | 93 | 154 | 223 | 282 | 377 | 49 | 56 | 197 | 197 | 109 | 88 | 65 | 4 | 163 | 6 | 6 | 6 |
Wind waves Height (m) Direction Period (s) | SSE 4 | SSE 4 | SE 4 | SSE 4 | SSE 4 | SE 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 7 | 7 | 7 | 5 | 5 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 155 | 11 | 389 | 103 | 103 | 29 | 11 | 11 | 2 | 2 | 0 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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