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Surf Forecasts:
4 Bobs surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 12 pm Monday 25 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 9PM is: 1.2m 16s primary swell from a South-southwest direction and 0.6m 9s secondary swell from a West-northwest direction (forecast issued at 12:00pm May 25). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 May) | 2ft (0.6m) | 15s |
| Afternoon (25 May) | 2.5ft (0.8m) | 12s |
| Evening (25 May) | 4ft (1.2m) | 16s |
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 17mm), heaviest on Tue night. Warm (max 28°C on Mon morning, min 27°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||||||
Mon 25 | Tuesday 26 | Wednesday 27 | Thu 28 | |||||||||||||||||||||
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 15 | SSW 12 | SW 12 | SSW 16 | SSW 16 | SSW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 16 | SSW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | |
150 | 206 | 227 | 441 | 875 | 952 | 1193 | 1124 | 1044 | 1239 | 1224 | 1339 | 1288 | 1074 | 1045 | 1031 | 915 | 902 | 890 | 2238 | 2483 | 2396 | 2408 | 2444 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | glassy | glassy | glassy | glassy | glassy | glassy | off | off | cross-off | glassy | glassy | glassy | glassy | glassy | glassy | |
High Tide | 1:48PM0.85m | 2:51AM0.92m | 2:53PM0.80m | 3:41AM1.00m | 3:50PM0.78m | 4:24AM1.07m | ||||||||||||||||||
Low Tide | 7:55PM0.27m | 8:59AM0.41m | 8:44PM0.26m | 10:10AM0.35m | 9:26PM0.25m | |||||||||||||||||||
 |  |  |  |  | |  |  | | | | | | | | | | | | | | | | | |
 | 6:18 | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — |
 | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | 6:20 |
— | — | 1 | 1 | — | — | — | — | 2 | — | — | — | 1 | 5 | 4 | — | — | — | — | — | — | 2 | 1 | — | |
Temp °C | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 |
31 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 31 | 32 | 33 | 33 | 33 | 31 | 31 | 31 | 32 | 31 | 32 | 32 | 32 | 31 | 31 | 31 | |
Swell 1 Height (m) Direction Period (s) | SW 12 | SSW 12 | SW 12 | SSW 16 | SSW 16 | SSW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 16 | SSW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 |
 kJ | 144 | 184 | 227 | 441 | 875 | 952 | 1193 | 1124 | 1044 | 1239 | 1224 | 1339 | 1288 | 1074 | 1045 | 1031 | 915 | 902 | 890 | 2238 | 2483 | 2396 | 2408 | 2444 |
Swell 2 Height (m) Direction Period (s) | SSW 15 | WNW 8 | WNW 9 | SW 13 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | W 8 | SW 20 | SW 19 | SW 19 | SW 18 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 |
| kJ | 150 | 57 | 58 | 164 | 59 | 59 | 57 | 55 | 40 | 40 | 39 | 38 | 38 | 38 | 34 | 194 | 384 | 513 | 752 | 22 | 22 | 22 | 22 | 22 |
Swell 3 Height (m) Direction Period (s) | WNW 9 | SW 16 | SSW 16 | WNW 9 | S 9 | S 9 | SSE 8 | S 8 | S 8 | SSE 8 | SSE 8 | SSE 8 | S 8 | SSE 8 | SSE 8 | W 8 | WNW 8 | WNW 8 | WNW 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 |
| kJ | 58 | 206 | 173 | 59 | 39 | 39 | 23 | 37 | 36 | 24 | 24 | 24 | 37 | 40 | 28 | 34 | 22 | 22 | 22 | 25 | 21 | 12 | 12 | 12 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | NW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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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