4 Bobs surfForecast / Mentawi Islands / Indonesia

information circle16 Day Weather and Surf, issued 12 am Thursday 23 Apr 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
29.9° 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 Thursday (Apr 23) at 7AM. The primary swell is predicted to be 1.7m and 16s period with a secondary swell of 0.4m and 18s. 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 1.8m 15s and forecast to arrive on Sunday (Apr 26) at 10AM. Winds are predicted to be glassy at the time the swell arrives.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Thu 23rd Apr)5.5ft (1.7m) 16s
Best Surf 7AM (Thu 23rd Apr)5.5ft (1.7m) 16s
Most Powerful10AM (Sun 26th Apr)6ft (1.8m) 15s

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 7mm), mostly falling on Wed night. Warm (max 29°C on Fri afternoon, min 28°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 20mm), heaviest during Sun night. Warm (max 29°C on Sun afternoon, min 26°C on Sun night). Wind will be generally light.

Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
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
4
4
3
3
2
3
3
4
4
2
2
2
1
1
1
2
3
3
3
4
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
1.6
S
15
1.7
S
15
1.8
S
14
1.5
S
14
1.5
S
13
1.3
S
13
0.8
SSW
19
1.1
S
18
1.7
S
16
1.8
SSW
15
1.7
SSW
14
1.6
S
14
1.4
SSW
13
1.2
SSW
13
1.1
S
12
1
S
12
0.8
S
14
0.9
SSW
18
1.1
S
17
1.4
SSW
16
1.6
SSW
16
Wave Graph
Metric surfscale
Energy kJ
1216
1310
1352
836
782
556
497
768
1552
1581
1257
1033
690
507
371
280
261
570
742
976
1193
Wind (km/h)
10
NE
5
NNW
5
SSW
0
SE
5
W
5
W
5
NE
5
NNW
5
WSW
5
E
10
SSW
5
SSW
5
ESE
10
SSE
10
S
5
SE
5
S
5
S
5
NW
10
W
15
WNW
cross-off
off
glassy
glassy
glassy
cross
glassy
off
glassy
glassy
on
on
cross-on
on
on
cross-on
on
glassy
glassy
cross-off
cross-off
High Tide
10:29AM1.11m
11:16PM0.63m
11:43AM1.01m
00:58AM0.64m
1:10PM0.94m
2:29AM0.72m
2:31PM0.92m
3:33AM0.84m
3:36PM0.92m
4:21AM0.96m
4:27PM0.92m
5:00AM1.06m
5:11PM0.92m
Low Tide
5:09PM0.22m
4:23AM0.27m
6:28PM0.29m
5:41AM0.37m
8:01PM0.30m
7:35AM0.42m
9:12PM0.27m
9:24AM0.38m
9:57PM0.24m
10:30AM0.31m
10:30PM0.20m
11:15AM0.24m
10:59PM0.17m
thunderstorm
part cloud
thunderstorm
clear
thunderstorm
part cloud
cloud
part cloud
rain showers
clear
part cloud
thunderstorm
part cloud
clear
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
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>
6:22
6:22
6:22
6:22
6:22
6:21
6:21
2
1
1
3
11
3
3
13
2
1
12
Temp °C
28
28
28
28
29
28
28
29
28
28
29
28
28
28
28
28
29
28
26
26
27
32
32
33
33
33
32
32
33
33
33
32
32
32
31
31
32
33
32
30
29
30
Swell 1
Height (m)
Direction
Period (s)
1.6
S
15
1.7
S
15
1.8
S
14
1.5
S
14
1.5
S
13
1.3
S
13
1.2
S
12
1.2
S
12
1.7
S
16
1.8
SSW
15
1.7
SSW
14
1.6
S
14
1.4
SSW
13
1.2
SSW
13
1.1
S
12
1
S
12
0.9
SSW
11
1.1
S
13
1.1
S
17
1.4
SSW
16
1.6
SSW
16
Energy kJ
1216
1310
1352
836
782
556
416
403
1552
1581
1257
1033
690
507
371
280
213
423
742
976
1193
Swell 2
Height (m)
Direction
Period (s)
0.3
SW
18
0.4
SW
17
0.6
SW
16
0.6
S
8
0.4
SW
15
0.6
SW
15
0.8
SSW
19
1.1
S
18
0.4
SW
13
0.3
SW
13
0.1
SW
12
0.2
S
18
0.4
S
18
0.7
S
16
0.7
S
15
0.8
S
14
0.9
SSW
18
1
S
12
0.9
S
12
0.8
SW
16
Energy kJ
49
97
161
51
75
134
497
768
44
27
6
26
96
251
215
261
570
285
220
306
Swell 3
Height (m)
Direction
Period (s)
0.1
W
18
0.5
SW
16
0.1
SW
18
0.3
SSW
21
0.6
SW
14
0.4
SW
14
0.1
SW
16
0.1
SW
18
0.1
SW
24
0.3
SW
17
0.3
SW
16
0.4
SW
20
0.5
S
20
0.5
SW
18
0.4
SW
18
0.4
SW
13
0.1
W
18
Energy kJ
6
119
12
89
130
46
10
13
22
46
41
98
206
155
109
63
6
Wind waves
Height (m)
Direction
Period (s)
0.4
SSE
4
0.3
SE
4
0.3
SSE
4
Energy kJ
5
2
3
Nearest Offshore or Glassy
Rating
(10 max)
3
4
4
3
3
1
3
3
4
4
1
4
3
2
3
2
3
3
3
3
4
Distance (km)
0
0
0
0
0
7
0
0
0
0
489
10
2
11
103
11
10
0
0
0
0
Best forecast wave conditions in Mentawi Islands
Rating
(10 max)
4
4
4
4
3
3
4
4
4
4
4
3
3
3
3
3
4
4
4
4
Best forecast wave conditions in Indonesia
Rating
(10 max)
4
4
4
4
4
3
4
4
4
4
4
4
3
3
4
4
4
4
4
4
4
Header Global
Rating
(10 max)
5
5
4
5
5
4
5
4
4
6
7
9
5
5
6
6
8
8
5
5
5
  • Map Icons:
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  • 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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