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Surf Forecasts:
4 Bobs surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 12 am Saturday 09 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
30.5° C
(Which is slightly warmer than usual)How big are the waves at 4 Bobs today?
The current surf forecast for 4 Bobs at 5AM is: 1.1m 14s primary swell from a Southwest direction and 0.7m 8s secondary swell from a West direction (forecast issued at 12:00am May 09). The wind direction is predicted to be offshore and the swell rating is 2.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 May) | 3.5ft (1.1m) | 14s |
| Afternoon (09 May) | 3.5ft (1.0m) | 14s |
| Evening (09 May) | 3ft (0.9m) | 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 15mm), heaviest on Sat night. Warm (max 29°C on Mon afternoon, min 26°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 9 | Sunday 10 | Monday 11 | ||||||||||||||||||||||
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 14 | SW 14 | SW 14 | SW 14 | SW 14 | SSW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 15 | |
536 | 529 | 476 | 401 | 395 | 328 | 257 | 261 | 261 | 257 | 257 | 257 | 257 | 264 | 288 | 288 | 276 | 249 | 245 | 249 | 249 | 245 | 238 | 226 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | glassy | glassy | glassy | glassy | glassy | glassy | cross | glassy | glassy | cross | glassy | glassy | glassy | cross-off | glassy | cross | cross | cross-off | cross-off | cross-off | glassy | glassy | |
High Tide | 10:32PM0.59m | 10:36AM0.91m | 00:16AM0.60m | 11:46AM0.87m | 1:48AM0.67m | 1:13PM0.85m | ||||||||||||||||||
Low Tide | 3:56AM0.34m | 5:35PM0.30m | 5:00AM0.41m | 6:38PM0.31m | 6:24AM0.45m | 7:40PM0.28m | ||||||||||||||||||
 |  |  | |  |  |  | | | | | | | | |  | | | |  | | | | | |
 | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — |
— | — | — | — | — | 1 | 1 | 2 | 4 | 2 | 1 | 1 | 1 | — | 1 | — | — | — | — | — | — | 1 | — | — | |
Temp °C | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 26 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 28 |
30 | 30 | 31 | 33 | 33 | 32 | 32 | 33 | 31 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 31 | 33 | 33 | 33 | |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SSW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 |
 kJ | 536 | 529 | 476 | 401 | 395 | 328 | 257 | 261 | 261 | 257 | 257 | 257 | 257 | 264 | 288 | 288 | 276 | 249 | 245 | 249 | 249 | 245 | 238 | 175 |
Swell 2 Height (m) Direction Period (s) | W 8 | W 8 | W 8 | W 8 | W 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSW 16 | SSW 16 | SSW 16 | SW 15 |
| kJ | 57 | 58 | 63 | 48 | 48 | 40 | 40 | 39 | 38 | 37 | 37 | 36 | 35 | 35 | 35 | 36 | 36 | 36 | 35 | 35 | 173 | 173 | 171 | 226 |
Swell 3 Height (m) Direction Period (s) | S 9 | S 9 | SSE 9 | SSE 9 | SSE 8 | W 8 | W 8 | W 8 | W 8 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | SW 16 | SW 16 | SSE 8 | SSE 8 | SSE 8 | SSE 8 |
| kJ | 56 | 56 | 59 | 58 | 57 | 46 | 31 | 29 | 28 | 17 | 17 | 17 | 9 | 8 | 8 | 8 | 8 | 8 | 93 | 127 | 36 | 37 | 36 | 35 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
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