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Surf Forecasts:
4 Bobs surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 6 pm Saturday 23 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
30.3° C
(Which is slightly warmer than usual)How big are the waves at 4 Bobs today?
The current surf forecast for 4 Bobs at 11PM is: 1.2m 14s primary swell from a Southwest direction and 0.4m 8s secondary swell from a West-northwest direction (forecast issued at 06:00pm May 23). An open ocean swell of 0.7m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 May) | - | - |
| Afternoon (23 May) | 4.5ft (1.3m) | 14s |
| Evening (23 May) | 4.5ft (1.3m) | 14s |
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 15mm), heaviest on Sat night. Warm (max 29°C on Sat afternoon, min 26°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||||||
Sat 23 | Sunday 24 | Monday 25 | Tue 26 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SSW 14 | SSW 14 | SW 14 | SW 14 | SSW 13 | SW 13 | SSW 13 | SW 13 | SW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SW 15 | SSW 15 | SSW 12 | SW 12 | SSW 16 | SSW 16 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | |
663 | 752 | 556 | 532 | 472 | 400 | 458 | 394 | 394 | 351 | 330 | 184 | 184 | 176 | 150 | 187 | 227 | 441 | 875 | 1036 | 1193 | 1124 | 1044 | 1239 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | cross-off | cross-off | off | off | cross-off | off | |
High Tide | 00:38AM0.77m | 12:37PM0.92m | 1:50AM0.84m | 1:48PM0.85m | 2:51AM0.92m | |||||||||||||||||||
Low Tide | 5:56PM0.23m | 5:43AM0.39m | 6:57PM0.26m | 7:20AM0.43m | 7:55PM0.27m | 8:59AM0.41m | ||||||||||||||||||
 |  |  |  | | |  |  | |  | | | |  |  | | | | | | | | | | |
 | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — |
 | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | 6:20 |
2 | — | — | 2 | 2 | 4 | 1 | — | — | — | — | — | — | — | — | — | 1 | — | — | — | 1 | 1 | — | 1 | |
Temp °C | 29 | 29 | 28 | 28 | 28 | 27 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 28 | 28 |
31 | 32 | 30 | 31 | 30 | 28 | 27 | 27 | 28 | 27 | 28 | 29 | 29 | 29 | 31 | 31 | 31 | 32 | 32 | 31 | 30 | 30 | 31 | 31 | |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SW 14 | SW 14 | SSW 13 | SW 13 | SSW 13 | SW 13 | SW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SW 12 | SW 12 | SSW 12 | SW 12 | SSW 16 | SSW 16 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 |
 kJ | 663 | 752 | 556 | 532 | 472 | 400 | 458 | 394 | 394 | 351 | 330 | 184 | 184 | 144 | 144 | 187 | 227 | 441 | 875 | 1036 | 1193 | 1124 | 1044 | 1239 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | WNW 8 | WNW 8 | WNW 8 | SE 8 | WNW 8 | NW 8 | WNW 8 | SSE 7 | WNW 8 | WNW 8 | WNW 8 | WNW 9 | SW 15 | SSW 15 | WNW 8 | SW 16 | SW 13 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 |
| kJ | 35 | 71 | 20 | 20 | 3 | 75 | 67 | 50 | 11 | 34 | 35 | 62 | 59 | 176 | 150 | 57 | 208 | 164 | 59 | 59 | 64 | 47 | 62 | 46 |
Swell 3 Height (m) Direction Period (s) | S 8 | S 12 | SSE 8 | S 8 | WNW 8 | SSE 8 | S 11 | S 7 | W 13 | SSW 18 | SSW 18 | SW 14 | S 8 | WNW 9 | WNW 9 | SSW 16 | WNW 9 | WNW 9 | S 9 | S 9 | SSE 8 | SSE 8 | S 8 | S 8 |
| kJ | 33 | 3 | 21 | 20 | 12 | 6 | 2 | 10 | 3 | 31 | 31 | 102 | 21 | 59 | 58 | 175 | 58 | 59 | 39 | 39 | 23 | 24 | 36 | 37 |
Wind waves Height (m) Direction Period (s) | NW 8 | N 4 | WNW 5 | WNW 5 | WNW 8 | N 4 | N 4 | NNE 3 | NW 8 | N 3 | N 4 | NW 3 | NNW 3 | — | — | — | — | — | — | WNW 9 | NNW 3 | NNW 3 | NW 8 | NW 8 |
| kJ | 28 | 7 | 19 | 15 | 82 | 5 | 8 | 3 | 60 | 3 | 3 | 2 | 2 | — | — | — | — | — | — | 50 | 3 | 3 | 44 | 43 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 10 | 10 | 10 | 10 | 0 | 0 | 0 | 0 | 10 | 10 | 0 | 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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