4 Bobs surfForecast / Mentawi Islands / Indonesia

information circle48hr Weather and Surf, issued 12 pm Wednesday 27 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 slightly warmer than usual)

How big are the waves at 4 Bobs today?

The current surf forecast for 4 Bobs at 7PM is: 1.9m 17s primary swell from a Southwest direction and 0.4m 8s secondary swell from a West-northwest direction (forecast issued at 12:00pm May 27). The wind direction is predicted to be cross-offshore and the swell rating is 4.

Time (WIB) & DateWave HeightWave Period
Morning (27 May)5ft (1.6m)14s
Afternoon (27 May)5ft (1.5m)14s
Evening (27 May)6ft (1.9m)17s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 10mm), heaviest on Wed night. Warm (max 29°C on Wed afternoon, min 27°C on Wed night). Wind will be generally light.

Wed
27
Thursday
28
Friday
29
Sat
30
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)
3
4
4
4
3
4
4
4
4
3
4
4
4
4
4
4
3
3
4
4
4
3
3
3
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.5
SW
14
1.5
SW
14
1.5
SW
14
1.9
SW
17
2.1
SW
17
2.1
SW
17
2.2
SW
16
2.2
SW
16
2.2
SW
16
2.2
SW
16
2.2
SW
16
2.2
SW
16
2.1
SSW
15
2.1
SSW
15
2.1
SSW
15
2.1
SSW
15
2.1
SSW
14
2.1
SSW
14
2
SSW
14
2
SSW
14
1.9
SSW
14
1.8
SSW
14
1.8
SSW
13
1.7
SSW
13
Wave Graph
Metric surfscale
Energy kJ
915
902
890
2238
2483
2396
2408
2444
2291
2262
2233
2205
1963
1885
1860
1860
1835
1748
1582
1560
1442
1222
1186
987
Wind (km/h)
5
NNW
5
ENE
5
N
5
NW
5
W
5
WNW
5
NW
0
NE
5
NE
5
E
0
NNW
0
SE
0
S
0
SW
5
W
5
E
5
E
10
E
5
E
5
SE
0
E
0
W
0
WSW
0
SSE
off
cross-off
glassy
cross-off
cross
glassy
glassy
glassy
glassy
cross
glassy
glassy
glassy
glassy
glassy
glassy
cross
cross
glassy
glassy
glassy
glassy
glassy
glassy
High Tide
3:50PM0.78m
4:24AM1.07m
4:39PM0.76m
5:02AM1.12m
5:23PM0.75m
5:38AM1.15m
Low Tide
9:26PM0.25m
10:58AM0.28m
10:04PM0.22m
11:35AM0.22m
10:40PM0.19m
clear
clear
thunderstorm
clear
clear
thunderstorm
thunderstorm
thunderstorm
clear
clear
thunderstorm
clear
clear
clear
thunderstorm
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
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
1
3
2
2
1
1
Temp °C
28
28
29
28
28
28
27
27
28
28
28
28
28
28
27
27
28
28
28
28
28
27
27
27
32
31
33
32
32
33
32
32
32
32
33
33
33
33
31
31
32
32
32
32
33
32
32
32
Swell 1
Height (m)
Direction
Period (s)
1.5
SW
14
1.5
SW
14
1.5
SW
14
1.9
SW
17
2.1
SW
17
2.1
SW
17
2.2
SW
16
2.2
SW
16
2.2
SW
16
2.2
SW
16
2.2
SW
16
2.2
SW
16
2.1
SSW
15
2.1
SSW
15
2.1
SSW
15
2.1
SSW
15
2.1
SSW
14
2.1
SSW
14
2
SSW
14
2
SSW
14
1.9
SSW
14
1.8
SSW
14
1.8
SSW
13
1.7
SSW
13
Energy kJ
915
902
890
2238
2483
2396
2408
2444
2291
2262
2233
2205
1963
1885
1860
1860
1835
1748
1582
1560
1442
1222
1186
987
Swell 2
Height (m)
Direction
Period (s)
0.7
SW
19
0.9
SW
19
1.1
SW
18
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.3
WNW
8
0.3
WNW
8
0.3
WNW
8
0.3
WNW
8
0.3
WNW
8
0.3
WNW
8
0.3
WNW
8
Energy kJ
384
513
752
22
22
22
22
22
21
21
21
20
20
19
19
20
20
12
12
12
12
12
12
12
Swell 3
Height (m)
Direction
Period (s)
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.4
SSE
8
0.4
SSE
8
0.4
SSE
8
0.3
SSE
8
0.3
SSE
8
0.3
SSE
8
0.2
SSE
12
0.2
SSE
12
0.3
SSE
8
0.2
SSE
8
0.2
SSE
12
0.2
SSE
11
0.2
SSE
11
0.2
SSE
11
0.2
SSE
11
0.2
SSE
11
0.2
SSE
11
0.2
SSE
10
0.2
SSE
10
0.2
SSE
8
0.1
W
14
Energy kJ
22
22
22
25
24
20
12
12
12
14
14
11
6
13
12
12
12
11
11
11
10
9
6
4
Wind waves
Height (m)
Direction
Period (s)
Energy kJ
Nearest Offshore or Glassy
Rating
(10 max)
3
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
3
3
3
Distance (km)
0
0
0
0
10
0
0
0
0
2
0
0
0
0
0
0
2
2
0
0
0
0
0
0
Best forecast wave conditions in Mentawi Islands
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Best forecast wave conditions in Indonesia
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Header Global
Rating
(10 max)
7
9
9
7
9
6
6
6
6
9
8
9
8
7
7
6
6
5
5
5
5
5
5
5
  • 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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