4 Bobs surfForecast / Mentawi Islands / Indonesia

information circle16 Day Weather and Surf, issued 6 am Friday 22 May 2026 WIB
Forecast update in hr  min  s Forecast update imminent
4 Bobs surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's 4 Bobs sea temperature is
30.2° C
(Which is normal for this time of year)

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 Friday (May 22) at 1PM. The primary swell is predicted to be 1.3m and 15s period with a secondary swell of 0.6m and 6s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at 4 Bobs in the next 16 days are 2.2m 17s and forecast to arrive on Wednesday (May 27) at 10PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Tuesday (May 26) at 1AM.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Fri 22nd May)4.5ft (1.3m) 15s
Best Surf 4PM (Tue 26th May)5ft (1.6m) 16s
Most Powerful10PM (Wed 27th May)7ft (2.2m) 17s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 9mm), mostly falling on Sun afternoon. Warm (max 29°C on Sat morning, min 27°C on Fri morning). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 13mm), heaviest on Mon night. Warm (max 29°C on Mon morning, min 27°C on Mon night). Wind will be generally light.

Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
Wednesday
27
Thursday
28
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
3
3
2
3
2
2
2
2
2
2
3
3
4
3
4
4
4
4
4
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
SW
15
1.4
SW
15
1.4
SW
15
1.2
SW
14
1.3
SSW
14
1.2
SW
14
1.2
SSW
13
1.1
SW
13
0.8
SSW
12
0.6
SSW
15
0.9
SW
13
1.2
SW
17
1.4
SW
16
1.6
SW
16
1.6
SW
15
1.5
SW
14
1.9
SW
18
2.2
SW
17
2.3
SW
16
2.2
SSW
16
2.1
SSW
15
Wave Graph
Metric surfscale
Energy kJ
685
773
838
548
663
532
458
394
184
150
230
834
1044
1224
1074
915
2342
2664
2594
2472
2069
Wind (km/h)
15
NW
10
NW
10
NNW
10
NNW
5
NNW
10
NW
15
NNW
15
NNW
10
NW
15
N
15
NNW
10
NNW
10
NW
10
NNW
5
WNW
5
N
5
N
5
WNW
5
E
5
ENE
5
SE
cross-off
cross-off
cross-off
off
cross-off
cross-off
off
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
glassy
glassy
glassy
glassy
High Tide
10:24AM1.13m
11:21PM0.73m
11:27AM1.02m
00:38AM0.77m
12:37PM0.92m
1:50AM0.84m
1:48PM0.85m
2:51AM0.92m
2:53PM0.80m
3:41AM1.00m
3:50PM0.78m
4:24AM1.07m
4:39PM0.76m
Low Tide
4:57PM0.17m
4:26AM0.30m
5:56PM0.23m
5:43AM0.39m
6:57PM0.26m
7:20AM0.43m
7:55PM0.27m
8:59AM0.41m
8:44PM0.26m
10:10AM0.35m
9:26PM0.25m
10:58AM0.28m
10:04PM0.22m
thunderstorm
part cloud
rain showers
part cloud
thunderstorm
thunderstorm
cloud
thunderstorm
rain showers
thunderstorm
part cloud
thunderstorm
thunderstorm
clear
rain showers
thunderstorm
thunderstorm
thunderstorm
clear
part cloud
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:18
6:18
6:18
6:18
6:18
6:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:20
6:20
6:20
6:20
6:20
6:20
6:20
2
1
1
1
2
2
1
5
1
3
1
1
1
4
Temp °C
28
28
28
29
29
28
29
29
28
29
29
27
28
29
28
28
28
28
28
28
28
31
31
32
33
33
32
32
31
32
31
31
30
31
32
32
32
32
33
33
32
32
Swell 1
Height (m)
Direction
Period (s)
1.3
SW
15
1.4
SW
15
1.4
SW
15
1.2
SW
14
1.3
SSW
14
1.2
SW
14
1.2
SSW
13
1.1
SW
13
0.8
SSW
12
0.7
SW
12
0.9
SW
13
1.2
SW
17
1.4
SW
16
1.6
SW
16
1.6
SW
15
1.5
SW
14
1.9
SW
18
2.2
SW
17
2.3
SW
16
2.2
SSW
16
2.1
SSW
15
Energy kJ
685
773
838
548
663
532
458
394
184
144
230
834
1044
1224
1074
915
2342
2664
2594
2472
2069
Swell 2
Height (m)
Direction
Period (s)
0.6
S
8
0.7
S
9
0.6
S
9
0.5
WNW
7
0.5
WNW
8
0.4
WNW
8
0.2
SSE
11
0.6
WNW
8
0.5
WNW
9
0.6
SSW
15
0.7
WNW
9
0.8
WNW
9
0.9
WNW
9
0.8
WNW
9
0.6
WNW
8
0.9
SSW
19
0.5
WNW
8
0.5
WNW
8
0.5
WNW
8
0.4
WNW
8
0.4
WNW
8
Energy kJ
50
76
52
31
35
24
12
43
42
150
71
103
127
88
54
657
39
39
39
26
26
Swell 3
Height (m)
Direction
Period (s)
0.4
WNW
6
0.6
W
6
0.5
WNW
7
0.5
S
8
0.4
SSE
8
0.4
S
8
0.1
W
13
0.4
S
7
0.5
SW
14
0.5
S
9
0.6
SSW
16
0.5
S
9
0.5
S
8
0.5
S
9
0.5
S
8
0.5
WNW
8
0.4
SSE
8
0.4
SSE
8
0.3
SSE
8
0.3
SSE
12
0.2
SSE
12
Energy kJ
15
25
29
34
21
20
4
17
102
41
173
39
36
39
36
38
24
26
12
29
13
Wind waves
Height (m)
Direction
Period (s)
0.6
WNW
8
0.5
N
4
0.3
N
4
0.3
N
3
0.5
N
3
0.6
NW
4
0.5
N
4
0.7
NW
9
0.6
WNW
8
0.5
NW
8
Energy kJ
44
6
2
1
6
12
8
79
46
33
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
2
3
2
2
2
2
2
2
3
3
4
3
4
4
4
4
4
4
Distance (km)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Best forecast wave conditions in Mentawi Islands
Rating
(10 max)
3
3
3
3
3
3
3
2
2
2
2
3
4
4
4
4
4
4
4
4
4
Best forecast wave conditions in Indonesia
Rating
(10 max)
4
3
4
3
3
3
3
2
3
3
2
3
4
4
4
4
4
4
4
4
4
Header Global
Rating
(10 max)
5
7
6
5
4
8
5
6
5
5
4
4
4
6
5
6
9
6
5
9
7
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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