4 Bobs surfForecast / Mentawi Islands / Indonesia

information circle48hr Weather and Surf, issued 6 pm Saturday 03 Jan 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
29.1° C
(Which is normal for this time of year)


How big are the waves at 4 Bobs today?

The current surf forecast for 4 Bobs at 11PM is: 0.6m 17s primary swell from a South direction and 1.1m 8s secondary swell from a West-southwest direction, 0.6m 10s secondary swell from a South direction (forecast issued at 06:00pm January 03). The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (WIB) & DateWave HeightWave Period
Morning (03 Jan)--
Afternoon (03 Jan)4.5ft (1.3m)8s
Evening (03 Jan)4ft (1.2m)8s

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

Updates in  hr  min  s Forecast update imminent
Saturday
03
Sunday
04
Monday
05
Tuesday
06
4PM7PM10PM1AM4AM7AM10AM1PM4PM7PM10PM1AM4AM7AM10AM1PM4PM7PM10PM1AM4AM7AM10AM1PM
Rating
(10 max)
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
2
2
2
2
2
Swell
Height Map
Wave Height (m) & direction (?)
1.3
WSW
1.2
WSW
0.6
S
0.6
S
0.6
S
1.2
WSW
1.2
WSW
1.3
WSW
1.3
WSW
1.3
WSW
1.4
WSW
1.4
WSW
1.5
WSW
1.6
WSW
1.6
WSW
1.7
WSW
2
WSW
1.9
WSW
1.8
WSW
1.7
WSW
1.5
WSW
1.3
WSW
1.3
WSW
1.1
WSW
Period(s) (?)88171616910999999101010121110109998
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2211812051951881992422712662663143293834825646341044831615506359262237180
Wind
(km/h)
5
NE
5
NNE
5
NW
10
NW
10
NW
10
NW
5
NW
5
N
5
NNW
5
NNW
10
NNW
15
NW
15
NW
15
NW
15
NNW
10
NW
10
NW
10
NW
10
NW
10
NW
15
NNW
15
NNW
15
NNW
5
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassglasscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
glassglasscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
High Tide
/ height (m)
6:18PM
1.35
6:52AM
0.78
7:06PM
1.37
7:39AM
0.83
7:51PM
1.34
8:25AM
0.87
Low Tide
/ height (m)
12:59AM
0.01
12:13PM
0.04
1:41AM
-0.01
1:03PM
0.05
2:20AM
0.00
Saturday
03
Sunday
04
Monday
05
Tuesday
06
Sunrise-----6:20-------6:20-------6:20--
Sunset6:32-------6:34-------6:34-------
cloud
cloud
cloud
cloud
part cloud
part cloud
cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
thunderstorm
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
cloud
part cloud
Rain (mm)
-------------1----------
Temp. °C262626262626272828282727262627282828272726262728
Feels °C (?)292929292828303131312929282829303031303028282931
  • 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

Latest Updates

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our 4 Bobs surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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