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Surf Forecasts:

4 Bobs surfForecast / Mentawi Islands / Indonesia

information circle16 Day Weather and Surf, issued 12 am Saturday 14 Mar 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
29.3° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for 4 Bobs this week:

The surf forecast for 4 Bobs over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Mar 14) at 7PM. The primary swell is predicted to be 1.0m and 19s period with a secondary swell of 1.0m and 10s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at 4 Bobs in the next 16 days are 1.3m 17s and forecast to arrive on Sunday (Mar 15) at 1PM. Winds are predicted to be glassy at the time the swell arrives.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Sat 14th Mar)3.5ft (1.0m) 19s
Best Surf 7PM (Sat 14th Mar)3.5ft (1.0m) 19s
Most Powerful 1PM (Sun 15th Mar)4.5ft (1.3m) 17s

Table - best surf conditions forecast for 4 Bobs over the next 16 days.

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table

Short Range Forecast Moderate rain (total 18mm), heaviest on Fri night. Warm (max 28°C on Fri night, min 26°C on Sun night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Mon night. Warm (max 28°C on Mon night, min 27°C on Mon night). Wind will be generally light.

Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Fri
20
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
1
1
2
3
3
3
3
3
3
3
1
0
0
1
1
1
1
1
1
2
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.7
SSW
0.9
SSW
1
SSW
1.2
SSW
1.3
SSW
1.2
SW
1.4
SW
1.2
SW
1.2
SW
1.3
SSW
1.2
SW
1.1
SW
1.2
SW
1.1
SW
1.1
SW
1.1
SW
1
SW
1
SW
1
SW
0.9
SSW
0.9
SSW
Period(s) (?)222019181716151515141414131313131314131213
Wave
Graph
(?)Metric surfscale
Energy kJ (?)415603766854919786827693640701597471525406400406347384311273281
Wind
(km/h)
15
SSE
10
SE
5
S
0
WNW
5
ESE
5
WSW
5
WNW
5
E
0
SSW
5
SSW
5
SE
15
SSE
15
SSE
10
E
10
SSE
10
S
5
SSE
10
S
5
S
5
ESE
5
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		onglassglassglassglassglassglassglasscross-
on		ononcrossonononononglassglass
High Tide
/ height (m)
3:39AM
0.51
3:35PM
0.87
4:35AM
0.61
4:27PM
0.96
5:12AM
0.73
5:07PM
1.04
5:42AM
0.86
5:43PM
1.10
6:12AM
0.99
6:16PM
1.14
6:41AM
1.11
6:49PM
1.14
7:12AM
1.20
Low Tide
/ height (m)
11:07PM
0.41
7:17AM
0.41
10:48PM
0.34
9:06AM
0.39
11:04PM
0.26
10:17AM
0.32
11:26PM
0.18
11:07AM
0.23
11:52PM
0.11
11:51AM
0.14
12:19AM
0.04
12:32PM
0.06
12:48AM
-0.01
1:13PM
0.01
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Fri
20
Sunrise-6:28--6:28--6:28--6:26--6:26--6:26--6:26-
Sunset--6:35--6:35--6:35--6:34--6:34--6:34--6:32
thunderstorm
thunderstorm
clear
rain showers
clear
thunderstorm
thunderstorm
clear
clear
thunderstorm
thunderstorm
clear
part cloud
thunderstorm
cloud
cloud
clear
part cloud
part cloud
part cloud
part cloud
Rain (mm)
93-3-12--21--1-------
Temp. °C282828282828282728282828282828282828282828
Feels °C (?)313231323232323132323130313131313231313232
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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:
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Information about the 4 Bobs Surf forecast

The above surf forecast table for 4 Bobs provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at 4 Bobs can be found by selecting the local surf guide option on the grey menu. Our 4 Bobs surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (4 Bobs) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for 4 Bobs may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Are you planning a holiday in Mentawi Islands? If you are looking for accommodation near 4 Bobs, camping, hotels and holiday cottages in Mentawi Islands, consider staying in Padang which is 157 km (98 miles) away.

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