4 Bobs Surf Break

Lat Long: 1.91° S 99.31° E

4 Bobs Surf Forecast and Surf Report

Issued: 12 am 05 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 4 Sep 2026:

  • Best quality surf: Thursday 10 Sep, 1AM (local time) - 4ft (1.2m), 14s period, SSW swell with glassy winds.
  • Most powerful swell: Saturday 12 Sep, 1AM (local time) - 4.5ft (1.4m), 21s period, SW swell with 1,814 kJ wave energy.
  • Next surfable swell (1★+): Thursday 10 Sep, 1AM (local time) - 4ft (1.2m), 14s period with SSW 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 Thursday (Sep 10) at 1AM. The primary swell is predicted to be 1.2m and 14s period with a secondary swell of 1.2m and 10s. 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 1.4m 21s and forecast to arrive on Saturday (Sep 12) at 1AM. Winds are predicted to be glassy at the time the swell arrives.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Thu 10th Sep)4ft (1.2m) 14s
Best Surf 1AM (Thu 10th Sep)4ft (1.2m) 14s
Most Powerful 1AM (Sat 12th Sep)4.5ft (1.4m) 21s

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


Short Range Forecast

Light rain (total 7mm), mostly falling on Sun morning. Warm (max 29°C on Sat morning, min 27°C on Fri night). Mainly fresh winds.

Days 4-6 Weather Summary

Heavy rain (total 30mm), heaviest during Tue night. Warm (max 28°C on Tue afternoon, min 26°C on Tue night). Wind will be generally light.

Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
AM
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
0
0
0
0
0
0
1
2
2
3
2
4
3
3
4
4
3
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
SSW
17
1.1
SSW
17
0.9
SSW
18
1.4
SSW
16
0.8
S
18
1.2
SSW
15
1.3
SSW
14
1.2
SSW
14
1.7
SSE
9
1.3
SSW
18
1.5
SSW
17
1.7
SSW
16
1.9
SSW
15
1.9
SSW
15
1.2
SSW
14
1.6
SSW
16
1.7
SSW
17
1.7
SSW
16
1.7
SSW
15
1.7
SSW
15
1.4
SW
21
Wave Graph
Metric surfscale
Energy kJ
958
665
515
1016
399
627
660
490
456
1110
1282
1466
1641
1576
577
1338
1653
1479
1423
1174
1814
Wind (km/h)
25
SSE
25
SSE
20
SE
25
SE
30
SSE
25
SSE
20
SE
20
SSE
20
SE
15
SE
10
SSE
15
SSE
10
SE
15
SSE
5
E
5
SE
10
SSE
0
SSW
5
ENE
10
S
5
E
Wind State
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
glassy
cross-on
on
glassy
glassy
on
glassy
High Tide
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
5:32AM1.19m
6:03PM1.00m
6:14AM1.21m
6:40PM1.11m
Low Tide
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
11:56AM0.07m
11:49PM0.11m
12:25PM0.03m
00:33AM0.07m
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:18
6:18
6:18
6:16
6:16
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:23
6:22
6:22
6:22
6:22
6:22
6:22
 mm
1
1
1
2
2
1
3
17
2
2
5
7
6
2
4
Temp °C
29
28
28
28
28
28
28
27
27
27
28
27
28
28
28
27
28
27
27
27
27
Feels °C
29
28
28
28
28
28
29
28
27
29
31
29
31
30
31
31
32
31
31
30
31
  • 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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