4 Bobs Surf Break

Lat Long: 1.91° S 99.31° E

4 Bobs Surf Forecast and Surf Report

Issued: 6 pm 08 Sep 2026 (local time)

Forecast update in  hr  min

Today's 4 Bobs sea temperature is
29.5°C
0.7° 

4 Bobs surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


4 Bobs surf forecast from 8 Sep 2026:

  • Best quality surf: Monday 14 Sep, 4AM (local time) - 6.5ft (2.0m), 15s period, SW swell with glassy winds.
  • Most powerful swell: Saturday 12 Sep, 10PM (local time) - 8ft (2.4m), 19s period, SW swell with 3,975 kJ wave energy.
  • Next surfable swell (1★+): Monday 14 Sep, 4AM (local time) - 6.5ft (2.0m), 15s period with SW swell.

Best Forecast Surf Conditions for 4 Bobs this week:

The surf forecast for 4 Bobs over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 14) at 4AM. The primary swell is predicted to be 2.0m and 15s period with a secondary swell of 0.3m and 9s. Another secondary swell of 1.0m and 6s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at 4 Bobs in the next 16 days are 2.4m 19s and forecast to arrive on Saturday (Sep 12) at 10PM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Mon 14th Sep)6.5ft (2.0m) 15s
Best Surf 4AM (Mon 14th Sep)6.5ft (2.0m) 15s
Most Powerful10PM (Sat 12th Sep)8ft (2.4m) 19s

Table - best surf conditions forecast for 4 Bobs over the next 16 days.


Short Range Forecast

Heavy rain (total 48mm), heaviest during Thu night. Warm (max 28°C on Tue afternoon, min 26°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 69mm), heaviest during Fri night. Warm (max 28°C on Sun afternoon, min 25°C on Fri night). Wind will be generally light.

Tue
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
1
1
2
2
1
2
2
1
2
3
2
1
1
2
2
2
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
SSW
17
1.7
SSW
16
1.5
SSW
15
2.1
S
15
1.1
SSW
14
1.6
SSW
16
1.6
SSW
17
1.7
SSW
16
1.7
SSW
15
1.5
SSW
15
1.3
SW
21
1.7
SW
19
2.1
SW
19
2.4
SW
18
2.4
SW
17
2.3
SW
16
2
SW
15
1.9
SW
16
2
SSW
16
2
SSW
15
Wave Graph
Metric surfscale
Energy kJ
1282
1466
1010
1860
494
1338
1491
1498
1271
987
1625
2140
3072
3559
3010
2742
1788
1822
2007
1907
Wind (km/h)
20
SSE
25
SE
20
SSE
20
SSE
20
SE
15
SE
15
S
15
SSE
15
SE
15
SSE
15
SE
10
SE
10
S
10
SSE
15
SE
20
SSE
15
SE
10
SE
15
SSE
20
SE
Wind State
cross-on
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
on
cross-on
cross-on
cross-on
cross-on
High Tide
4:35PM0.73m
4:45AM1.15m
5:22PM0.87m
5:32AM1.19m
6:03PM1.00m
6:14AM1.21m
6:40PM1.11m
6:52AM1.18m
7:16PM1.18m
7:27AM1.12m
7:50PM1.21m
8:01AM1.03m
8:23PM1.20m
Low Tide
9:54PM0.26m
11:23AM0.13m
10:59PM0.18m
11:56AM0.07m
11:49PM0.11m
12:25PM0.03m
00:33AM0.07m
12:53PM0.01m
1:12AM0.05m
1:20PM0.01m
1:49AM0.06m
1:47PM0.02m
2:25AM0.09m
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:16
6:16
6:16
6:16
6:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:22
6:22
6:22
6:22
6:21
6:21
6:21
 mm
1
4
2
10
5
16
10
4
16
5
4
10
4
3
19
4
2
4
Temp °C
28
27
27
28
27
28
28
27
27
27
27
27
27
27
27
28
27
27
27
27
Feels °C
29
27
28
29
28
31
30
28
29
29
30
30
30
30
29
30
28
29
29
28
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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.

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