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Surf Forecasts:
4 Bobs surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 12 pm Saturday 16 May 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 4PM is: 1.3m 13s primary swell from a South-southwest direction and 0.9m 9s secondary swell from a West direction (forecast issued at 12:00pm May 16). An open ocean swell of 0.5m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 May) | 5ft (1.5m) | 13s |
| Afternoon (16 May) | 4.5ft (1.3m) | 13s |
| Evening (16 May) | 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 ForecastModerate rain (total 10mm), heaviest on Sat night. Warm (max 29°C on Sat morning, min 27°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Sat 16 | Sunday 17 | Monday 18 | Tue 19 | |||||||||||||||||||||
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 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | S 16 | S 16 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 13 | |
722 | 722 | 538 | 530 | 522 | 534 | 365 | 206 | 444 | 378 | 372 | 290 | 286 | 333 | 907 | 284 | 746 | 894 | 871 | 869 | 844 | 757 | 844 | 683 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | glassy | glassy | glassy | glassy | cross-off | cross | cross-on | cross | cross | cross | glassy | cross-off | cross-off | off | off | |
High Tide | 5:56PM0.87m | 6:16AM1.37m | 6:42PM0.85m | 7:00AM1.40m | 7:28PM0.82m | |||||||||||||||||||
Low Tide | 11:31PM0.01m | 12:46PM-0.03m | 00:14AM-0.01m | 1:33PM-0.04m | 00:58AM-0.01m | |||||||||||||||||||
 |  | |  | |  | | | | | | | | | | |  | | |  | | | | | |
 | 6:18 | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — |
 | — | — | 6:19 | — | — | — | — | — | — | — | 6:19 | — | — | — | — | — | — | — | 6:19 | — | — | — | — | 6:19 |
— | 1 | 1 | 1 | 2 | — | 1 | 1 | — | — | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 28 | 29 | 29 | 29 | 28 | 28 | 27 | 27 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 28 | 28 |
29 | 29 | 30 | 31 | 31 | 32 | 31 | 30 | 32 | 34 | 33 | 33 | 33 | 32 | 32 | 32 | 31 | 31 | 33 | 33 | 33 | 32 | 31 | 30 | |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | S 13 | S 16 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 13 |
 kJ | 722 | 722 | 538 | 530 | 522 | 534 | 365 | 206 | 444 | 378 | 372 | 290 | 286 | 272 | 907 | 267 | 746 | 894 | 871 | 869 | 844 | 757 | 844 | 683 |
Swell 2 Height (m) Direction Period (s) | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | S 16 | W 9 | S 12 | SW 13 | W 9 | W 8 | W 8 | SW 18 | SW 18 | SW 18 | SW 18 |
| kJ | 103 | 130 | 127 | 125 | 125 | 125 | 122 | 96 | 96 | 99 | 101 | 101 | 101 | 333 | 78 | 177 | 87 | 54 | 51 | 36 | 199 | 375 | 370 | 304 |
Swell 3 Height (m) Direction Period (s) | SSE 7 | SW 16 | SW 16 | SW 16 | SW 16 | SSE 6 | S 15 | S 14 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | W 9 | SW 14 | S 17 | SW 20 | SW 19 | SW 19 | SW 19 | W 8 | W 8 | W 8 | W 8 |
| kJ | 5 | 40 | 157 | 161 | 91 | 4 | 161 | 150 | 75 | 75 | 75 | 167 | 167 | 78 | 127 | 284 | 134 | 236 | 236 | 130 | 35 | 34 | 34 | 34 |
Wind waves Height (m) Direction Period (s) | N 5 | N 5 | N 4 | N 4 | WNW 6 | N 4 | NNW 4 | — | — | — | — | — | — | — | — | S 10 | WSW 9 | ESE 4 | — | — | — | — | — | — |
| kJ | 24 | 10 | 9 | 13 | 39 | 1 | 3 | — | — | — | — | — | — | — | — | 48 | 108 | 10 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 10 | 10 | 10 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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