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Surf Forecasts:
4 Bobs surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 6 pm Thursday 30 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
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 12AM is: 1.5m 15s primary swell from a South-southwest direction and 0.6m 15s secondary swell from a Southwest direction (forecast issued at 06:00pm April 30). The wind direction is predicted to be cross-onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 May) | - | - |
| Afternoon (01 May) | 4.5ft (1.3m) | 14s |
| Evening (01 May) | 5ft (1.5m) | 16s |
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 29mm), heaviest during Thu night. Warm (max 29°C on Thu afternoon, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Thu 30 | Friday 1 | Saturday 2 | Sun 3 | |||||||||||||||||||||
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 | 10 AM | 1 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 14 | SSW 14 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | 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 13 | SSW 12 | SSW 12 | SSW 14 | |
722 | 722 | 1051 | 988 | 949 | 956 | 904 | 854 | 841 | 733 | 733 | 733 | 653 | 733 | 711 | 528 | 551 | 476 | 469 | 469 | 551 | 355 | 268 | 218 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross-on | cross-on | glassy | cross-off | cross-off | glassy | glassy | cross | cross | glassy | cross-off | cross-off | cross | cross | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | |
High Tide | 5:49PM0.90m | 6:07AM1.19m | 6:25PM0.87m | 6:38AM1.21m | 6:58PM0.84m | 7:09AM1.20m | ||||||||||||||||||
Low Tide | 11:26PM0.14m | 12:24PM0.12m | 11:53PM0.11m | 12:54PM0.09m | 00:22AM0.10m | |||||||||||||||||||
 |  | |  | |  | |  | | | | | | |  | | |  | | | | | | | |
 | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — |
 | 6:21 | — | — | — | — | — | — | — | 6:21 | — | — | — | — | — | — | — | 6:21 | — | — | — | — | — | — | 6:20 |
— | — | — | 1 | 5 | 1 | 2 | — | 1 | 1 | 4 | 2 | 4 | 1 | — | — | — | — | 1 | 2 | 2 | — | 2 | — | |
Temp °C | 29 | 29 | 28 | 28 | 27 | 27 | 27 | 28 | 29 | 28 | 28 | 26 | 25 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 |
34 | 33 | 32 | 32 | 30 | 31 | 31 | 33 | 32 | 32 | 32 | 28 | 28 | 28 | 29 | 31 | 32 | 31 | 31 | 31 | 31 | 31 | 32 | 32 | |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | 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 13 | SSW 12 | SSW 12 | SSW 12 |
 kJ | 722 | 722 | 1051 | 988 | 949 | 956 | 904 | 854 | 841 | 733 | 733 | 733 | 653 | 733 | 711 | 528 | 551 | 476 | 469 | 469 | 551 | 355 | 268 | 184 |
Swell 2 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SW 15 | SW 15 | SW 15 | W 16 | W 15 | W 15 | W 15 | W 14 | W 14 | W 14 | S 8 | S 18 | S 18 | S 8 | SSW 17 | SSW 16 | S 16 | S 16 | W 13 | SSW 15 | SSW 15 | SSW 14 |
| kJ | 363 | 354 | 209 | 75 | 33 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 32 | 25 | 25 | 42 | 57 | 87 | 131 | 129 | 3 | 228 | 169 | 218 |
Swell 3 Height (m) Direction Period (s) | S 8 | S 8 | W 16 | W 16 | W 16 | — | — | — | — | — | — | W 14 | W 14 | W 14 | W 14 | S 18 | W 13 | W 13 | W 13 | W 13 | S 8 | W 13 | S 8 | S 8 |
| kJ | 33 | 32 | 5 | 5 | 5 | — | — | — | — | — | — | 4 | 4 | 4 | 4 | 55 | 3 | 3 | 3 | 3 | 30 | 3 | 31 | 31 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NE 3 | NNW 3 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 7 | 103 | 0 | 0 | 0 | 0 | 0 | 10 | 10 | 0 | 0 | 0 | 2 | 2 | 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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