
Surf Forecasts:
4 Bobs surf forecast from 3 Sep 2026:
- Most powerful swell: Wednesday 9 Sep, 1AM (local time) - 5.5ft (1.7m), 16s period, SSW swell with 1,466 kJ wave energy.
Best Forecast Surf Conditions for 4 Bobs this week:
The most powerful waves expected at 4 Bobs in the next 16 days are 1.7m 16s and forecast to arrive on Wednesday (Sep 09) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Wed 9th Sep) | 5.5ft (1.7m) 16s |
Table - best surf conditions forecast for 4 Bobs over the next 16 days.
Short Range ForecastHeavy rain (total 21mm), heaviest during Thu morning. Warm (max 28°C on Thu morning, min 26°C on Fri night). Winds increasing (light winds from the ESE on Fri morning, fresh winds from the SE by Sat night). | Days 4-6 Weather SummaryHeavy rain (total 30mm), heaviest during Tue night. Warm (max 28°C on Sun morning, min 27°C on Sun afternoon). Winds decreasing (fresh winds from the SSE on Sun afternoon, light winds from the S by Tue afternoon). | ||||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 17 | SSW 17 | SSW 18 | SSW 16 | S 18 | SSW 15 | SSW 14 | SSW 14 | SSE 9 | SSW 18 | S 18 | SSW 16 | SSW 15 | SSW 15 | SSW 18 |
Wave Graph | |||||||||||||||||||||
928 | 915 | 822 | 581 | 458 | 346 | 958 | 665 | 515 | 1016 | 404 | 627 | 660 | 490 | 427 | 959 | 653 | 1466 | 1010 | 857 | 497 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | 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 | on | cross-on | cross-on | on | cross-on |
High Tide | 10:18PM1.09m | 10:12AM0.69m | 11:20PM1.03m | 11:19AM0.58m | 00:51AM0.99m | 1:44PM0.54m | 2:31AM1.01m | 3:31PM0.61m | 3:47AM1.07m | 4:35PM0.73m | 4:45AM1.15m | 5:22PM0.87m | |||||||||
Low Tide | 3:37PM0.09m | 4:47AM0.25m | 4:19PM0.15m | 5:59AM0.33m | 5:14PM0.23m | 7:47AM0.35m | 6:36PM0.30m | 9:44AM0.29m | 8:24PM0.31m | 10:43AM0.21m | 9:54PM0.26m | 11:23AM0.13m | 10:59PM0.18m | ||||||||
6:20 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — | |
— | 6:23 | — | — | 6:23 | — | — | 6:23 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | |
mm | 5 | 1 | 4 | 2 | 2 | 5 | 2 | — | — | 1 | 1 | 2 | 3 | 2 | 3 | 6 | 3 | 9 | 10 | 7 | 14 |
Temp °C | 28 | 28 | 27 | 28 | 28 | 27 | 27 | 28 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
Feels °C | 30 | 30 | 30 | 32 | 32 | 30 | 29 | 29 | 26 | 28 | 27 | 26 | 27 | 28 | 27 | 29 | 31 | 28 | 29 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 17 | SSW 17 | SSW 14 | SSW 16 | SSW 14 | SSW 15 | SSW 14 | SSW 14 | SW 13 | SSW 18 | S 18 | SSW 16 | SSW 15 | SSW 15 | SSW 14 |
928 | 915 | 822 | 581 | 458 | 346 | 958 | 665 | 515 | 1016 | 378 | 627 | 660 | 490 | 178 | 959 | 653 | 1466 | 1010 | 857 | 494 | |
Swell 2 Height (m) Direction Period (s) | W 16 | WNW 8 | NW 8 | SSE 8 | SSW 17 | SSW 16 | NW 9 | SSW 13 | SSW 18 | S 20 | S 18 | S 16 | SSW 21 | SSW 20 | S 13 | SSW 12 | SSW 16 | SSE 15 | SSE 14 | W 10 | SSW 18 |
20 | 6 | 2 | 110 | 99 | 273 | 3 | 257 | 443 | 268 | 404 | 325 | 90 | 256 | 168 | 172 | 566 | 42 | 63 | 2 | 497 | |
Swell 3 Height (m) Direction Period (s) | W 16 | — | — | WNW 8 | WNW 8 | WNW 8 | W 13 | WNW 8 | S 21 | W 11 | SSW 16 | S 23 | W 10 | SSE 18 | SSW 18 | SSE 16 | SSW 12 | — | W 10 | — | SW 15 |
20 | — | — | 6 | 6 | 6 | 4 | 7 | 36 | 9 | 295 | 11 | 2 | 30 | 214 | 49 | 129 | — | 2 | — | 106 | |
Wind waves Height (m) Direction Period (s) | SSE 6 | SSE 7 | SSE 8 | — | SSE 8 | SSE 7 | SSE 7 | SSE 7 | SSE 6 | SSE 7 | SSE 7 | SSE 8 | SSE 8 | SSE 8 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 11 | SSE 10 |
129 | 117 | 123 | — | 107 | 104 | 142 | 155 | 162 | 249 | 334 | 373 | 404 | 414 | 427 | 329 | 287 | 329 | 424 | 586 | 377 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 7 | 7 | 7 | 2 | 7 | 2 | 7 | 7 | 7 | 7 | 389 | 7 | 7 | 389 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
Best forecast wave conditions in Mentawi Islands | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
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Information about the 4 Bobs Surf forecast
The above surf forecast table for 4 Bobs provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at 4 Bobs can be found by selecting the local surf guide option on the grey menu. Our 4 Bobs surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (4 Bobs) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for 4 Bobs may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Are you planning a holiday in Mentawi Islands? If you are looking for accommodation near 4 Bobs, camping, hotels and holiday cottages in Mentawi Islands, consider staying in Padang which is 157 km (98 miles) away.










