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Surf Forecasts:
4 Bobs surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 6 am Thursday 23 Apr 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
29.9° C
(Which is normal for this time of year)How big are the waves at 4 Bobs today?
The current surf forecast for 4 Bobs at 3PM is: 1.6m 15s primary swell from a South direction and 0.4m 17s secondary swell from a Southwest direction (forecast issued at 06:00am April 23). The wind direction is predicted to be glassy and the swell rating is 3.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Apr) | 5ft (1.6m) | 16s |
| Afternoon (23 Apr) | 5ft (1.6m) | 15s |
| Evening (23 Apr) | 5.5ft (1.7m) | 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 3mm), mostly falling on Thu morning. Warm (max 29°C on Fri afternoon, min 27°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 23 | Friday 24 | Saturday 25 | Sun 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 |    |    |    |    | ||||||||||||||||||||
SSW 16 | S 16 | S 15 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | SSW 19 | S 18 | S 18 | SSW 17 | SSW 17 | S 16 | |
1029 | 1477 | 1216 | 1019 | 1310 | 1275 | 1123 | 1352 | 1175 | 1094 | 836 | 902 | 782 | 771 | 663 | 556 | 522 | 496 | 497 | 690 | 768 | 908 | 973 | 1552 | |
Wind (km/h) | ||||||||||||||||||||||||
on | cross-on | cross-off | off | glassy | off | glassy | glassy | glassy | glassy | glassy | glassy | cross-on | cross-on | glassy | glassy | glassy | glassy | cross-off | glassy | glassy | glassy | glassy | cross-off | |
High Tide | 10:29AM1.11m | 11:16PM0.63m | 11:43AM1.01m | 00:58AM0.64m | 1:10PM0.94m | |||||||||||||||||||
Low Tide | 3:26AM0.16m | 5:09PM0.22m | 4:23AM0.27m | 6:28PM0.29m | 5:41AM0.37m | 8:01PM0.30m | ||||||||||||||||||
 |  | |  | |  |  | | |  | | | | | | | | | | | | | | | |
 | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | 6:18 |
 | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | 6:22 |
2 | 2 | 1 | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 28 | 28 |
32 | 31 | 32 | 32 | 32 | 32 | 33 | 33 | 32 | 33 | 33 | 32 | 33 | 33 | 33 | 33 | 33 | 33 | 32 | 32 | 34 | 34 | 33 | 32 | |
Swell 1 Height (m) Direction Period (s) | SSW 16 | S 16 | S 15 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | SSW 17 | SSW 17 | S 16 |
 kJ | 1029 | 1477 | 1216 | 1019 | 1310 | 1275 | 1123 | 1352 | 1175 | 1094 | 836 | 902 | 782 | 771 | 663 | 556 | 522 | 496 | 409 | 409 | 403 | 908 | 973 | 1552 |
Swell 2 Height (m) Direction Period (s) | S 9 | SW 18 | SW 18 | S 8 | SW 17 | SW 16 | S 9 | SW 16 | SW 16 | SW 16 | S 8 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SSW 19 | S 18 | S 18 | S 12 | S 12 | SW 13 |
| kJ | 74 | 79 | 49 | 66 | 97 | 127 | 74 | 161 | 124 | 121 | 51 | 80 | 104 | 104 | 134 | 134 | 103 | 130 | 497 | 690 | 768 | 396 | 383 | 44 |
Swell 3 Height (m) Direction Period (s) | SW 17 | SW 18 | W 18 | SW 18 | — | — | SW 16 | — | — | — | SW 16 | W 16 | W 16 | SW 18 | S 22 | SSW 21 | SSW 21 | S 20 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 16 |
| kJ | 148 | 78 | 6 | 48 | — | — | 161 | — | — | — | 119 | 5 | 5 | 12 | 36 | 89 | 144 | 196 | 130 | 70 | 46 | 46 | 44 | 10 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 7 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 82 | 19 | 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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