Surf Forecasts:
How big are the waves at 4 Bobs today (21 Jul):
- Morning surf: Morning surf (21 Jul, local time) - 5.5ft (1.7m), 14s period with SSW swell.
- Afternoon surf: Afternoon surf (21 Jul, local time) - 5ft (1.6m), 14s period with SSW swell.
- Evening surf: Evening surf (21 Jul, local time) - 4.5ft (1.4m), 14s period with SSW swell.
The current surf forecast for 4 Bobs at 5PM is: 1.5m 14s primary swell from a South-southwest direction and 0.2m 8s secondary swell from a West-northwest direction, 1.0m 6s secondary swell from a South-southeast direction (forecast issued at 12:00pm July 21). The wind direction is predicted to be cross-onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Jul) | 5.5ft (1.7m) | 14s |
| Afternoon (21 Jul) | 5ft (1.6m) | 14s |
| Evening (21 Jul) | 4.5ft (1.4m) | 14s |
Table - waves today at 4 Bobs. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 22mm), heaviest during Wed morning. Warm (max 28°C on Tue afternoon, min 27°C on Tue morning). Wind will be generally light. | |||||||||||||||||||||
Tue 21 | Wednesday 22 | Thursday 23 | |||||||||||||||||||
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) | 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 | SSE 9 | SSE 9 | SSE 8 | SSE 10 | SSE 10 | SSE 10 | SSE 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1061 | 1047 | 917 | 904 | 724 | 595 | 586 | 499 | 461 | 384 | 317 | 312 | 297 | 237 | 360 | 495 | 388 | 637 | 726 | 712 | 803 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 00:02AM0.96m | 11:49AM0.70m | 1:01AM0.93m | 12:56PM0.60m | |||||||||||||||||
Low Tide | 4:51PM0.18m | 5:47AM0.39m | 5:28PM0.23m | 6:59AM0.43m | 6:12PM0.28m | ||||||||||||||||
 | |  |  | | | | | | | |  | |  |  | | | | | | | |
 | 6:28 | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — |
 | — | — | 6:29 | — | — | — | — | — | — | — | 6:29 | — | — | — | — | — | — | — | 6:30 | — | — |
mm | — | — | 1 | 2 | 2 | 2 | 2 | 4 | 5 | 3 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 28 | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 27 | 29 | 29 | 29 | 29 | 28 | 27 | 26 | 27 | 28 | 28 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | 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 | SSW 14 | S 11 | SSW 14 | SW 16 | SSW 14 | SSW 13 |
| kJ | 1061 | 1047 | 917 | 904 | 724 | 595 | 586 | 499 | 461 | 384 | 317 | 312 | 297 | 237 | 127 | 118 | 114 | 138 | 90 | 73 | 70 |
Swell 2 Height (m) Direction Period (s) | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | SSW 18 | SSW 18 | WNW 9 | WNW 8 | SSW 16 | SSW 16 | SSW 16 | SW 17 | SSE 9 | SSW 15 | SSW 12 | SSW 14 | SW 12 | WNW 11 | SW 16 | SW 16 |
| kJ | 16 | 14 | 14 | 6 | 6 | 62 | 62 | 15 | 14 | 53 | 87 | 103 | 76 | 29 | 121 | 55 | 140 | 34 | 23 | 91 | 91 |
Swell 3 Height (m) Direction Period (s) | W 11 | W 7 | SSW 20 | SSW 20 | W 10 | WNW 8 | WNW 10 | SSW 18 | SW 19 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 11 | SSW 15 | WNW 11 | WNW 10 |
| kJ | 9 | 1 | 37 | 37 | 8 | 6 | 19 | 62 | 15 | 13 | 12 | 19 | 6 | 21 | 20 | 20 | 21 | 22 | 43 | 22 | 22 |
Wind waves Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 7 | SSE 5 | SSE 5 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 7 | SSE 7 | SSE 7 | SSE 8 | SSE 9 | SSE 9 | SSE 8 | SSE 10 | SSE 10 | SSE 10 | SSE 10 |
| kJ | 68 | 66 | 79 | 44 | 49 | 71 | 94 | 100 | 115 | 119 | 149 | 140 | 153 | 204 | 360 | 495 | 388 | 637 | 726 | 712 | 803 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 489 | 7 | 7 |
Best forecast wave conditions in Mentawi Islands | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
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