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Surf Forecasts:
4 Bobs surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 12 am Thursday 28 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
30.2° C
(Which is slightly warmer than usual)How big are the waves at 4 Bobs today (28 May):
- Morning surf: Morning surf (28 May, local time) - 7ft (2.2m), 16s period with SW swell.
- Afternoon surf: Afternoon surf (28 May, local time) - 7ft (2.2m), 16s period with SW swell.
- Evening surf: Evening surf (28 May, local time) - 7ft (2.2m), 15s period with SW swell.
The current surf forecast for 4 Bobs at 3AM is: 2.2m 16s primary swell from a Southwest direction and 0.4m 8s secondary swell from a West-northwest direction (forecast issued at 12:00am May 28). The wind direction is predicted to be glassy and the swell rating is 4.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 May) | 7ft (2.2m) | 16s |
| Afternoon (28 May) | 7ft (2.2m) | 16s |
| Evening (28 May) | 7ft (2.2m) | 15s |
Table - waves today at 4 Bobs. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 7mm), mostly falling on Wed night. Warm (max 28°C on Wed night, min 27°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 28 | Friday 29 | Saturday 30 | ||||||||||||||||||||||
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 | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | |
2396 | 2408 | 2444 | 2291 | 2262 | 2233 | 2205 | 1963 | 1885 | 1860 | 1860 | 1748 | 1748 | 1582 | 1560 | 1314 | 1222 | 1186 | 987 | 987 | 987 | 922 | 812 | 751 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross | glassy | glassy | cross-off | glassy | glassy | glassy | glassy | glassy | glassy | cross | cross | cross-on | glassy | glassy | glassy | glassy | glassy | cross-on | cross-on | on | on | glassy | |
High Tide | 4:24AM1.07m | 4:39PM0.76m | 5:02AM1.12m | 5:23PM0.75m | 5:38AM1.15m | 6:02PM0.74m | ||||||||||||||||||
Low Tide | 10:58AM0.28m | 10:04PM0.22m | 11:35AM0.22m | 10:40PM0.19m | 12:08PM0.17m | |||||||||||||||||||
 | |  |  | | |  | | | | | | |  |  | | | | | | | | | | |
 | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — |
1 | 3 | 2 | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 28 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 |
32 | 31 | 31 | 31 | 32 | 33 | 33 | 33 | 32 | 32 | 32 | 31 | 32 | 32 | 32 | 33 | 32 | 32 | 32 | 31 | 32 | 31 | 32 | 32 | |
Swell 1 Height (m) Direction Period (s) | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 |
 kJ | 2396 | 2408 | 2444 | 2291 | 2262 | 2233 | 2205 | 1963 | 1885 | 1860 | 1860 | 1748 | 1748 | 1582 | 1560 | 1314 | 1222 | 1186 | 987 | 987 | 987 | 922 | 812 | 751 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 |
| kJ | 22 | 22 | 22 | 21 | 21 | 21 | 20 | 20 | 19 | 19 | 20 | 20 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 22 | 22 |
Swell 3 Height (m) Direction Period (s) | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 12 | SSE 12 | SSE 8 | SSE 8 | SSE 12 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 10 | SSE 10 | SSE 8 | W 14 | W 14 | W 14 | W 10 | SE 7 | SE 7 |
| kJ | 20 | 12 | 12 | 12 | 14 | 14 | 11 | 6 | 13 | 12 | 12 | 12 | 11 | 11 | 11 | 10 | 9 | 6 | 4 | 4 | 4 | 2 | 2 | 2 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 7 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
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