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Surf Forecasts:
4 Bobs surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 6 am 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 12PM is: 1.2m 14s primary swell from a Southwest direction and 0.5m 8s secondary swell from a West-northwest direction (forecast issued at 06:00am May 23). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 May) | 4ft (1.2m) | 14s |
| 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 ForecastHeavy rain (total 27mm), heaviest during Sat night. Warm (max 29°C on Sat morning, min 27°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 23 | Sunday 24 | Monday 25 | Tue 26 | |||||||||||||||||||||
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 | 1 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 15 | SW 14 | SW 14 | SW 14 | SSW 14 | SSW 14 | SW 14 | SW 14 | SSW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SSW 12 | SSW 12 | SW 15 | SSW 15 | SSW 12 | SW 13 | SW 16 | SW 16 | SW 17 | |
795 | 604 | 548 | 621 | 663 | 752 | 556 | 532 | 472 | 400 | 394 | 394 | 394 | 331 | 311 | 184 | 184 | 176 | 150 | 187 | 230 | 367 | 767 | 834 | |
Wind (km/h) | ||||||||||||||||||||||||
off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | |
High Tide | 11:27AM1.02m | 00:38AM0.77m | 12:37PM0.92m | 1:50AM0.84m | 1:48PM0.85m | |||||||||||||||||||
Low Tide | 4:26AM0.30m | 5:56PM0.23m | 5:43AM0.39m | 6:57PM0.26m | 7:20AM0.43m | 7:55PM0.27m | ||||||||||||||||||
 |  | | | | |  | | |  |  | | | | | | | | | | | |  | | |
 | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | 6:18 |
 | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | 6:20 |
1 | 1 | 1 | 1 | 2 | 1 | — | 3 | 2 | — | — | — | — | — | 2 | 1 | 2 | 1 | — | — | 3 | 1 | — | 1 | |
Temp °C | 28 | 27 | 28 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 28 | 27 | 27 | 27 | 27 | 27 | 29 | 28 | 28 | 28 | 27 |
31 | 29 | 31 | 32 | 32 | 32 | 31 | 29 | 30 | 29 | 28 | 30 | 30 | 29 | 28 | 28 | 29 | 28 | 28 | 31 | 30 | 30 | 30 | 29 | |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 14 | SW 14 | SSW 14 | SSW 14 | SW 14 | SW 14 | SSW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SSW 12 | SSW 12 | SW 12 | WNW 9 | SSW 12 | SW 13 | W 8 | SW 16 | SW 17 |
 kJ | 795 | 604 | 548 | 621 | 663 | 752 | 556 | 532 | 472 | 400 | 394 | 394 | 394 | 331 | 311 | 184 | 184 | 144 | 77 | 187 | 230 | 89 | 767 | 834 |
Swell 2 Height (m) Direction Period (s) | WNW 7 | WNW 7 | WNW 7 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | SE 8 | WNW 8 | WNW 8 | NW 8 | WNW 8 | WNW 8 | WNW 8 | SW 14 | S 8 | SW 15 | SW 12 | WNW 8 | WSW 7 | SW 16 | W 8 | W 8 |
| kJ | 30 | 36 | 31 | 35 | 35 | 71 | 69 | 54 | 3 | 58 | 58 | 65 | 48 | 34 | 35 | 102 | 21 | 176 | 144 | 94 | 35 | 367 | 89 | 86 |
Swell 3 Height (m) Direction Period (s) | SSW 8 | S 8 | S 8 | S 8 | S 8 | S 12 | S 8 | S 8 | SE 8 | SSE 8 | SSE 11 | S 7 | S 9 | S 9 | S 8 | S 8 | SW 18 | S 9 | SSW 15 | SSW 16 | SSW 16 | SW 13 | S 9 | SW 11 |
| kJ | 22 | 35 | 34 | 34 | 33 | 3 | 12 | 12 | 2 | 6 | 12 | 10 | 13 | 24 | 12 | 21 | 79 | 24 | 150 | 175 | 173 | 164 | 39 | 58 |
Wind waves Height (m) Direction Period (s) | — | — | NNW 3 | — | NW 8 | N 4 | NW 4 | NW 4 | WNW 8 | NNW 4 | N 4 | N 4 | N 4 | N 4 | N 4 | NW 8 | WNW 9 | WNW 9 | NNW 4 | NNW 4 | NNW 3 | NNW 4 | N 4 | — |
| kJ | — | — | 3 | — | 28 | 7 | 17 | 15 | 56 | 4 | 4 | 16 | 9 | 9 | 5 | 74 | 96 | 86 | 4 | 4 | 4 | 4 | 2 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 10 | 0 | 0 | 0 | 0 | 10 | 10 | 0 | 0 | 10 | 10 | 10 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
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