4 Bobs surfForecast / Mentawi Islands / Indonesia

information circle48hr Weather and Surf, issued 12 pm Thursday 07 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
30.6° C
(Which is slightly warmer than usual)

How big are the waves at 4 Bobs today?

The current surf forecast for 4 Bobs at 7PM is: 1.3m 16s primary swell from a South-southwest direction and 0.8m 10s secondary swell from a South direction, 0.2m 6s secondary swell from a West-southwest direction (forecast issued at 12:00pm May 07). The wind direction is predicted to be onshore.

Time (WIB) & DateWave HeightWave Period
Morning (07 May)3.5ft (1.1m)18s
Afternoon (07 May)4.5ft (1.3m)17s
Evening (07 May)4ft (1.2m)16s

Table - waves today at 4 Bobs. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 81mm), heaviest during Thu night. Warm (max 28°C on Thu morning, min 26°C on Thu night). Wind will be generally light.

Thu
7
Friday
8
Saturday
9
Sun
10
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
Rating
(10 max)
1
1
0
0
0
0
1
0
1
1
0
1
0
2
3
3
1
1
1
2
2
2
2
2
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><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)
1.1
SW
18
1.2
SW
18
1.3
SSW
17
1.3
SSW
16
1.2
SW
16
1.2
SW
16
1.4
SW
16
1.4
SW
16
1.4
SW
16
1.4
SW
15
1.2
SW
15
1.2
SW
15
1.1
SW
14
1.1
SW
14
1.1
SW
14
1.1
SW
14
1
SW
14
1
SW
14
0.9
SSW
14
0.9
SW
13
0.9
SW
13
0.9
SW
13
0.9
SW
13
0.9
SW
13
Wave Graph
Metric surfscale
Energy kJ
799
905
975
875
757
757
929
917
894
860
640
623
536
536
529
476
401
395
328
257
261
261
257
257
Wind (km/h)
10
SSE
15
S
20
SSW
20
SSW
20
SSW
15
SSW
15
SSW
15
SW
10
SSW
15
SW
30
WSW
25
WSW
20
SW
5
SW
15
WNW
10
ENE
15
W
20
WNW
15
NW
15
NW
10
NW
10
NW
10
NW
10
NW
on
on
cross-on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-on
cross-on
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
9:35PM0.61m
9:49AM0.96m
10:32PM0.59m
10:36AM0.91m
00:16AM0.60m
Low Tide
3:51PM0.22m
3:10AM0.26m
4:39PM0.27m
3:56AM0.34m
5:35PM0.30m
5:00AM0.41m
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
mod rain
thunderstorm
thunderstorm
thunderstorm
part cloud
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
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:20
6:20
6:20
6:20
1
1
3
1
6
8
7
6
5
6
2
2
8
8
5
2
1
1
1
1
3
3
Temp °C
28
28
28
28
28
28
27
26
27
27
26
27
27
26
26
26
26
27
27
27
26
26
26
26
31
30
30
29
30
30
30
28
30
30
26
28
29
31
29
29
29
29
30
30
29
30
30
29
Swell 1
Height (m)
Direction
Period (s)
1.1
SW
18
1.2
SW
18
1.3
SSW
17
1.3
SSW
16
1.2
SW
16
1.2
SW
16
1.4
SW
16
1.4
SW
16
1.4
SW
16
1.4
SW
15
1.2
SW
15
1.2
SW
15
1.1
SW
14
1.1
SW
14
1.1
SW
14
1.1
WSW
5
1
SW
14
1
SW
14
0.9
SSW
14
0.9
SW
13
0.9
SW
13
0.9
SW
13
0.9
SW
13
0.9
SW
13
Energy kJ
799
905
975
875
757
757
929
917
894
860
640
623
536
536
529
69
401
395
328
257
261
261
257
257
Swell 2
Height (m)
Direction
Period (s)
1
SW
13
0.8
SW
13
0.8
SW
13
0.8
S
10
0.8
S
10
0.8
S
10
0.8
S
9
0.6
SSE
9
0.7
SSE
9
0.7
SSE
9
0.6
SSE
9
0.6
SSE
9
0.5
S
9
0.5
S
9
0.5
SSE
9
1.1
SW
14
0.7
W
8
0.8
W
8
0.7
W
8
0.6
SSE
8
0.6
S
8
0.5
SSE
8
0.5
SSE
8
0.5
SSE
8
Energy kJ
345
205
205
122
117
113
109
65
82
80
61
61
39
39
43
476
64
82
61
55
50
38
38
37
Swell 3
Height (m)
Direction
Period (s)
0.8
S
10
0.7
S
10
0.7
S
10
0.8
SW
13
0.7
SW
13
0.6
SW
12
0.5
W
8
0.5
SW
12
0.5
SW
12
0.1
W
13
0.1
W
16
0.1
S
20
0.1
S
19
0.2
S
19
0.2
S
18
0.6
SSE
9
0.6
SW
5
0.7
S
8
0.6
S
8
0.6
W
8
0.5
W
8
0.5
W
8
0.4
W
7
0.4
W
7
Energy kJ
127
96
96
199
163
92
31
69
69
3
5
7
7
28
25
58
20
71
52
43
28
29
17
17
Wind waves
Height (m)
Direction
Period (s)
0.3
WSW
6
0.2
WSW
6
1
WSW
5
1.6
WSW
6
1.6
WSW
7
1.8
WSW
6
2.1
WSW
7
2.1
WSW
7
1.6
WSW
6
1.2
WSW
6
1.3
W
6
0.4
NNE
4
0.4
NNE
4
0.3
NNE
4
0.4
N
3
0.5
NW
3
0.5
NW
3
Energy kJ
7
3
46
200
247
260
372
384
176
91
101
6
5
2
2
5
5
Nearest Offshore or Glassy
Rating
(10 max)
3
3
4
4
3
3
3
4
3
3
3
3
3
3
3
3
3
3
2
2
2
2
2
2
Distance (km)
7
7
159
153
103
103
7
80
29
80
692
82
80
2
0
0
35
19
10
0
0
0
0
0
Best forecast wave conditions in Mentawi Islands
Rating
(10 max)
4
4
4
4
4
3
4
4
4
3
3
3
3
3
3
3
3
2
2
2
2
2
2
Best forecast wave conditions in Indonesia
Rating
(10 max)
4
4
4
4
4
3
4
4
4
4
3
3
3
3
3
3
3
3
3
2
2
2
2
2
Header Global
Rating
(10 max)
5
5
8
5
5
6
7
7
7
8
6
5
5
9
9
5
5
5
5
5
8
5
4
4
  • 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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