Surf Forecasts:
How big are the waves at 4 Bobs today (31 Jul):
- Morning surf: Morning surf (31 Jul, local time) - 4ft (1.2m), 17s period with SW swell.
- Afternoon surf: Afternoon surf (31 Jul, local time) - 5ft (1.5m), 16s period with SSW swell.
- Evening surf: Evening surf (31 Jul, local time) - 4.5ft (1.3m), 16s period with SSW swell.
The current surf forecast for 4 Bobs at 6AM is: 1.3m 17s primary swell from a South-southwest direction and 0.9m 13s secondary swell from a South-southwest direction, 1.0m 5s secondary swell from a South-southeast direction (forecast issued at 12:00am July 31). The wind direction is predicted to be cross-onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Jul) | 4ft (1.2m) | 17s |
| Afternoon (31 Jul) | 5ft (1.5m) | 16s |
| Evening (31 Jul) | 4.5ft (1.3m) | 16s |
Table - waves today at 4 Bobs. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 30mm), heaviest during Fri night. Warm (max 29°C on Sat morning, min 27°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | ||||||||||||||||||||||
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 |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SSW 18 | SSW 18 | SW 17 | SW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 16 | SW 16 | SSW 17 | SSW 17 | SSW 17 | SSW 16 | SW 16 | SSW 16 | SW 16 | SW 16 | SSW 16 | SSW 15 | SSW 18 | SSW 18 | SSW 16 | SSW 16 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 1172 | 1309 | 885 | 825 | 1136 | 1321 | 853 | 853 | 1057 | 1097 | 1526 | 1543 | 1336 | 1170 | 1044 | 1155 | 1018 | 1018 | 933 | 770 | 1178 | 790 | 1358 | 1358 |
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 | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross | cross | cross-on | cross-on | on | on | on |
High Tide | 7:26AM1.18m | 7:56PM0.88m | 7:54AM1.17m | 8:26PM0.93m | 8:22AM1.13m | 8:56PM0.98m | ||||||||||||||||||
Low Tide | 00:43AM0.15m | 1:42PM0.08m | 1:22AM0.15m | 2:09PM0.06m | 2:01AM0.15m | 2:38PM0.05m | ||||||||||||||||||
 | |  | |  | |  | | | | | | | | | | | |  | |  | | | | |
 | — | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — |
mm | — | — | — | — | 1 | 1 | 1 | 3 | 3 | 4 | 5 | 3 | 1 | — | 1 | 2 | 3 | 1 | — | — | — | — | 1 | 4 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 28 | 28 | 29 | 29 | 28 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 29 | 30 | 30 | 31 | 31 | 31 | 30 | 30 | 29 | 29 | 31 | 30 | 32 | 32 | 31 | 31 | 31 | 30 | 32 | 32 | 32 | 32 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | SSW 18 | SW 17 | S 13 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 16 | SW 16 | SSW 17 | SSW 17 | SSW 17 | SSW 16 | SW 16 | SSW 16 | SW 16 | SW 16 | SSW 16 | SSW 15 | SSW 18 | SSW 18 | SSW 16 | SSW 16 |
| kJ | 1172 | 1309 | 885 | 590 | 1136 | 1321 | 853 | 853 | 1057 | 1097 | 1526 | 1543 | 1336 | 1170 | 1044 | 1155 | 1018 | 1018 | 933 | 770 | 1178 | 790 | 1358 | 1358 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 13 | SW 17 | SW 21 | WNW 10 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | WNW 10 | WNW 10 | WNW 10 | WNW 11 | SW 11 | WNW 11 | SSW 19 | SSW 19 | SSE 7 | SSE 7 | SSE 7 | SW 14 | WNW 10 | SSE 8 |
| kJ | 215 | 145 | 342 | 825 | 117 | 20 | 167 | 111 | 111 | 111 | 18 | 18 | 20 | 22 | 30 | 22 | 283 | 497 | 121 | 121 | 125 | 482 | 19 | 99 |
Swell 3 Height (m) Direction Period (s) | WNW 11 | WNW 10 | WNW 10 | SW 22 | WNW 10 | WNW 10 | SW 20 | SSW 20 | WNW 10 | WNW 10 | — | — | W 16 | W 16 | WNW 11 | W 16 | WNW 11 | WNW 10 | S 19 | SSW 19 | SW 14 | SSE 8 | W 16 | WNW 10 |
| kJ | 22 | 21 | 20 | 118 | 20 | 38 | 188 | 336 | 19 | 18 | — | — | 5 | 5 | 23 | 5 | 22 | 22 | 480 | 589 | 301 | 105 | 5 | 19 |
Wind waves Height (m) Direction Period (s) | SSE 5 | SSE 5 | SSE 6 | SSE 6 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 5 | SSE 5 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | — | — | — | — | SSE 8 | — |
| kJ | 46 | 51 | 47 | 34 | 50 | 51 | 53 | 64 | 42 | 51 | 88 | 108 | 108 | 102 | 105 | 115 | 118 | 118 | — | — | — | — | 105 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 7 | 7 | 7 | 7 | 7 | 7 | 155 | 7 | 7 | 7 | 7 | 2 | 7 | 7 | 7 | 7 | 2 | 2 | 2 | 2 | 2 | 7 | 7 | 7 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
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