4 Bobs surfForecast / Mentawi Islands / Indonesia

information circle48hr Weather and Surf, issued 6 am Friday 08 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 11AM is: 1.4m 16s primary swell from a Southwest direction and 0.8m 8s secondary swell from a West-southwest direction (forecast issued at 06:00am May 08). The wind direction is predicted to be cross-shore.

Time (WIB) & DateWave HeightWave Period
Morning (08 May)4.5ft (1.4m)16s
Afternoon (08 May)4ft (1.2m)15s
Evening (08 May)3.5ft (1.1m)14s

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 72mm), heaviest during Sat night. Warm (max 28°C on Sat morning, min 25°C on Sat night). Wind will be generally light.

Friday
8
Saturday
9
Sunday
10
Mon
11
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
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
Rating
(10 max)
3
3
3
2
1
2
3
2
2
2
2
2
1
2
2
2
2
2
2
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)
1.4
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
0.9
SW
13
0.9
SW
13
0.9
SW
14
0.9
SW
14
0.9
SW
14
0.9
SW
14
Wave Graph
Metric surfscale
Energy kJ
929
917
894
860
640
623
536
536
529
476
401
395
328
257
261
261
257
257
257
257
264
288
288
276
Wind (km/h)
5
SSE
5
ESE
5
W
10
WSW
10
WSW
10
SW
5
ESE
10
NE
5
NNE
5
N
5
W
10
WNW
10
W
10
WNW
15
NNE
15
NNE
10
NNE
10
NNW
5
N
10
NE
10
NE
5
SSE
5
SSE
5
SE
glassy
glassy
glassy
cross-on
cross-on
cross-on
glassy
cross-off
off
glassy
glassy
cross-off
cross
cross-off
off
off
off
cross-off
glassy
cross-off
cross-off
glassy
glassy
glassy
High Tide
9:49AM0.96m
10:32PM0.59m
10:36AM0.91m
00:16AM0.60m
11:46AM0.87m
Low Tide
3:10AM0.26m
4:39PM0.27m
3:56AM0.34m
5:35PM0.30m
5:00AM0.41m
6:38PM0.31m
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
mod rain
mod rain
thunderstorm
mod rain
cloud
cloud
cloud
cloud
part cloud
part cloud
<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
5
4
3
1
3
2
2
1
2
4
1
2
8
7
24
10
Temp °C
27
26
26
26
27
27
27
27
27
27
27
28
28
28
26
25
25
25
25
27
28
28
28
27
32
30
30
29
30
30
31
30
31
32
31
31
31
32
29
27
28
29
29
30
32
33
33
31
Swell 1
Height (m)
Direction
Period (s)
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
0.9
SW
13
0.9
SW
13
0.9
SW
14
0.9
SW
14
0.9
SW
14
0.9
SW
14
Energy kJ
929
917
894
860
640
623
536
536
529
476
401
395
328
257
261
261
257
257
257
257
264
288
288
276
Swell 2
Height (m)
Direction
Period (s)
0.6
SSE
9
0.6
SSE
9
0.8
WSW
8
0.8
WSW
7
0.9
WSW
7
0.9
W
7
0.8
W
8
0.8
W
8
0.7
W
8
0.7
W
8
0.7
W
8
0.7
W
8
0.6
W
8
0.5
SSE
8
0.5
SSE
8
0.5
SSE
8
0.5
SSE
8
0.5
SSE
8
0.5
SSE
8
0.5
SSE
8
0.5
SSE
8
0.5
SSE
8
0.5
SSE
8
0.5
SSE
8
Energy kJ
68
65
75
73
91
88
71
74
58
61
64
64
45
40
39
38
37
37
36
35
35
35
35
35
Swell 3
Height (m)
Direction
Period (s)
0.6
SW
5
0.6
SW
5
0.7
SSE
9
0.7
SSE
9
0.7
SSE
9
0.6
SSE
9
0.7
SSE
9
0.6
S
9
0.6
SSE
9
0.7
SSE
9
0.7
SSE
9
0.7
SSE
8
0.5
SSE
8
0.6
W
8
0.5
W
8
0.5
W
8
0.4
WNW
7
0.4
WNW
7
0.4
WNW
7
0.3
W
7
0.3
WNW
7
0.3
WNW
7
0.3
W
7
0.3
W
7
Energy kJ
14
19
82
80
80
61
80
56
61
67
65
64
40
44
29
29
18
18
18
9
9
9
8
8
Wind waves
Height (m)
Direction
Period (s)
0.6
SE
9
0.3
WSW
3
0.3
NNW
3
Energy kJ
61
1
1
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
3
3
3
3
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Distance (km)
0
0
0
35
82
80
0
0
0
0
0
0
10
0
0
0
0
0
0
0
0
0
0
0
Best forecast wave conditions in Mentawi Islands
Rating
(10 max)
4
4
4
3
3
3
3
3
3
3
3
3
2
2
2
2
2
2
2
2
2
2
2
2
Best forecast wave conditions in Indonesia
Rating
(10 max)
4
4
4
4
3
3
3
3
3
3
3
3
2
2
2
2
2
2
2
2
2
2
3
3
Header Global
Rating
(10 max)
7
6
6
6
7
6
7
7
6
5
5
5
5
5
5
5
4
4
4
4
4
4
9
9
  • 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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