
Surf Forecasts:
How big are the waves at 4 Bobs today (17 Jul):
- Morning surf: Morning surf (17 Jul, local time) - 4.5ft (1.4m), 16s period with SW swell.
- Afternoon surf: Afternoon surf (17 Jul, local time) - 4.5ft (1.4m), 15s period with SW swell.
- Evening surf: Evening surf (17 Jul, local time) - 4.5ft (1.4m), 15s period with SW swell.
The current surf forecast for 4 Bobs at 10AM is: 1.4m 16s primary swell from a Southwest direction and 0.7m 7s secondary swell from a South-southeast direction (forecast issued at 06:00am July 17). The wind direction is predicted to be cross-onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Jul) | 4.5ft (1.4m) | 16s |
| Afternoon (17 Jul) | 4.5ft (1.4m) | 15s |
| Evening (17 Jul) | 4.5ft (1.4m) | 15s |
Table - waves today at 4 Bobs. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 43mm), heaviest during Sat night. Warm (max 29°C on Fri morning, min 25°C on Sat night). Winds increasing (calm on Fri night, fresh winds from the W by Sun afternoon). | |||||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||||||||
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 | |||||||||||||||||||||||
Wave Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 18 | SSW 18 |
Wave Graph | |||||||||||||||||||||||
894 | 894 | 883 | 805 | 784 | 795 | 695 | 676 | 667 | 667 | 667 | 597 | 589 | 548 | 532 | 525 | 517 | 465 | 458 | 458 | 451 | 685 | 951 | |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | on | glassy | glassy | glassy | glassy | glassy | glassy | off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross | cross | cross | cross | cross-on |
High Tide | 8:15AM1.31m | 8:50PM0.96m | 8:57AM1.22m | 9:36PM1.00m | 9:38AM1.10m | ||||||||||||||||||
Low Tide | 1:34AM0.06m | 2:37PM0.00m | 2:23AM0.11m | 3:12PM0.03m | 3:11AM0.17m | 3:45PM0.08m | |||||||||||||||||
6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | |
— | — | — | — | 6:29 | — | — | — | — | — | — | — | 6:29 | — | — | — | — | — | — | — | 6:29 | — | — | |
mm | 2 | 2 | 1 | — | — | 1 | 2 | 2 | 1 | 2 | 3 | 1 | 2 | 2 | 6 | 7 | 5 | 1 | — | — | 1 | — | — |
Temp °C | 27 | 28 | 28 | 29 | 29 | 29 | 28 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 26 | 26 | 25 | 26 | 26 | 27 | 27 | 27 |
Feels °C | 30 | 31 | 30 | 33 | 32 | 34 | 33 | 31 | 31 | 31 | 32 | 32 | 31 | 29 | 29 | 27 | 26 | 26 | 27 | 26 | 26 | 28 | 29 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 18 |
894 | 894 | 883 | 805 | 784 | 795 | 695 | 676 | 667 | 667 | 667 | 597 | 589 | 548 | 532 | 525 | 517 | 465 | 458 | 458 | 451 | 458 | 951 | |
Swell 2 Height (m) Direction Period (s) | SSE 8 | SSE 8 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | S 7 | SSE 7 | S 7 | S 7 | SSW 18 | SSW 18 | SW 13 |
63 | 58 | 57 | 74 | 74 | 65 | 65 | 65 | 51 | 51 | 49 | 62 | 63 | 79 | 82 | 67 | 66 | 54 | 38 | 38 | 333 | 685 | 388 | |
Swell 3 Height (m) Direction Period (s) | WNW 9 | WNW 9 | 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 | W 14 | W 14 | N 5 | N 5 | SSE 7 | SSE 7 | NW 7 |
15 | 15 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 13 | 13 | 12 | 12 | 12 | 11 | 4 | 4 | 7 | 8 | 38 | 28 | 8 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 8 | NW 4 | W 4 | W 4 | W 4 | W 4 | SW 4 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 20 | 16 | 36 | 38 | 30 | 28 | 38 | |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 7 | 7 | 7 | 7 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 10 | 82 | 389 | 155 | 155 | 80 |
Best forecast wave conditions in Mentawi Islands | |||||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||||
Header Global | |||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)












