Snow-ForecastSnow-ForecastMountain-ForecastMountain-ForecastTide-ForecastTide-ForecastWeather-ForecastWeather-Forecast
Search by country, region, or break
Search by country, region, or break

Quick Links

Surf Forecasts:

4 Bobs surfForecast / Mentawi Islands / Indonesia

information circle48hr Weather and Surf, issued 6 am Monday 12 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 9AM is: 0.5m 11s primary swell from a Southwest direction and 0.6m 8s secondary swell from a West-southwest direction, 0.5m 9s secondary swell from a South direction (forecast issued at 06:00am January 12). The wind direction is predicted to be cross-offshore.

Time (WIB) & DateWave HeightWave Period
Morning (12 Jan)1.5ft (0.5m)11s
Afternoon (12 Jan)1.5ft (0.5m)9s
Evening (12 Jan)2ft (0.6m)9s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Monday
12
Tuesday
13
Wednesday
14
Thu
15
4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM
Rating
(10 max)
0
1
1
1
1
1
1
1
1
1
1
1
1
0
0
2
2
2
2
2
1
1
2
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.5
SW
0.6
SSW
0.5
SW
0.6
S
0.5
SSE
0.6
S
0.6
S
0.6
S
0.6
S
0.6
S
0.6
S
0.6
S
0.4
SW
0.4
SW
0.4
SW
0.6
SW
0.7
SW
0.8
SW
0.8
SW
0.8
SW
0.9
SW
0.9
SW
0.9
SW
0.9
SW
Period(s) (?)111111999999999181818171616161515151515
Wave
Graph
(?)Metric surfscale
Energy kJ (?)60816363496161616163636384113112188260314302273375375385385
Wind
(km/h)
10
W
5
WNW
5
NW
5
NNE
5
NW
10
WNW
10
NW
10
NW
10
NW
10
NNW
10
NNW
10
NNE
10
WNW
15
W
15
WNW
15
WNW
10
NW
10
NNW
5
NNW
0
SW
5
WSW
10
W
10
WNW
10
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offoffcross-
off		crosscross-
off		cross-
off		cross-
off		cross-
off		glassglasscross-
on		crosscross-
off		cross-
off
High Tide
/ height (m)
1:33PM
0.90
1:25AM
0.59
2:38PM
0.91
2:56AM
0.55
3:39PM
0.94
Low Tide
/ height (m)
5:49AM
0.26
7:26PM
0.46
6:37AM
0.29
9:38PM
0.43
7:38AM
0.31
11:01PM
0.36
Monday
12
Tuesday
13
Wednesday
14
Thu
15
Sunrise-6:24-------6:24-------6:24------
Sunset----6:37-------6:37-------6:37---
thunderstorm
part cloud
clear
clear
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
1-----------------------
Temp. °C272627272828272726262728282827272626272728282727
Feels °C (?)312931303231293028293031313028292829313130302930
  • 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

The World’s Most Inconsistent Waves
Ben Mondy

The World’s Most Inconsistent Waves

Huntington, Dribbleton, Virginia, Holland and the Superbank! We recently had a look at the world’s most consistent waves. This was based on the combination of swells and wind directed at 7,000 surf spots, as compiled from our data since 2006. Those stats, represented in easy-to-read graphics, are located under each wave’s spot guides, with historical swell and wind breakdowns available by month, season, and year. There is also an offshore filter, which shows how often the swells come with clean

Read more

Read more

Discover more articles and updates in the Greenroom.

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.

View detailed surf forecast for 4 Bobs at:
surf-forecast.com

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest