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Surf Forecasts:

Marosi surfForecast / Sumba / Indonesia

information circle12 Day Weather and Surf, issued 1 pm Thursday 30 Oct 2025 WITA
Forecast update in hr  min  s Forecast update imminent
Marosi surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Marosi sea temperature is
28.6° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Marosi this week:

The surf forecast for Marosi over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Oct 30) at 11PM. The primary swell is predicted to be 1.9m and 17s period with a secondary swell of 0.1m and 9s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Marosi in the next 12 days are 2.1m 18s and forecast to arrive on Thursday (Nov 06) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (WITA) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 30th Oct)6ft (1.9m) 17s
Best Surf11PM (Thu 30th Oct)6ft (1.9m) 17s
Most Powerful 2AM (Thu 6th Nov)7ft (2.1m) 18s

Table - best surf conditions forecast for Marosi over the next 12 days.

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

Short Range Forecast Moderate rain (total 11mm), heaviest on Fri afternoon. Warm (max 28°C on Thu afternoon, min 26°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Moderate rain (total 10mm), heaviest on Sun night. Warm (max 29°C on Mon afternoon, min 26°C on Sun night). Wind will be generally light.

Thu
30
Friday
31
Saturday
01
Sunday
02
Monday
03
Tuesday
04
Wednesday
05
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
1
4
2
3
3
2
2
2
2
3
3
2
2
3
2
1
3
2
1
3
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.1
SW
1.9
SW
1.9
SW
1.9
SW
1.8
SW
1.8
SW
1.6
SW
1.3
SW
1.2
SSW
1.3
SSW
1.7
SSW
1.6
SW
1.6
SW
1.8
SW
1.7
SW
1.7
SSW
1.6
SW
1
SW
1.4
SW
2.1
SW
2.1
SW
Period(s) (?)181716161414131316151414131414131320191816
Wave
Graph
(?)Metric surfscale
Energy kJ (?)77720681787176414021253846609674740124490786711791089932816769147526112241
Wind
(km/h)
15
SE
5
E
15
SSW
10
SE
15
ESE
15
SSW
10
SSE
15
ESE
15
SSW
10
SSE
15
ESE
10
SW
5
SSE
5
ESE
15
S
15
SSE
5
SE
15
S
20
SSE
10
SSE
15
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
off		oncrosscrossoncross-
on		crossoncross-
on		crossoncross-
on		crossoncross-
on		crosscross-
on		cross-
on		cross-
on		cross-
on
High Tide
/ height (m)
4:45PM
1.61
3:13AM
1.92
6:55PM
1.78
6:04AM
1.87
7:40PM
2.04
7:35AM
2.02
8:12PM
2.32
8:31AM
2.21
8:43PM
2.60
9:17AM
2.37
9:15PM
2.87
9:58AM
2.49
9:49PM
3.09
10:38AM
2.53
Low Tide
/ height (m)
8:50PM
1.49
11:16AM
1.04
12:09AM
1.48
12:53PM
0.98
1:45AM
1.18
1:48PM
0.87
2:32AM
0.81
2:29PM
0.76
3:11AM
0.44
3:06PM
0.66
3:49AM
0.12
3:42PM
0.58
4:28AM
-0.12
Thu
30
Friday
31
Saturday
01
Sunday
02
Monday
03
Tuesday
04
Wednesday
05
Sunrise--5:33--5:33--5:33--5:31--5:31--5:31--5:31
Sunset6:00--6:00--6:00--6:00--6:00--6:00--6:00--
part cloud
clear
part cloud
thunderstorm
thunderstorm
clear
thunderstorm
clear
clear
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
clear
part cloud
thunderstorm
part cloud
part cloud
part cloud
clear
Rain (mm)
---63-2--14-13--1----
Temp. °C282828272828282828282828292728282728282728
Feels °C (?)303132313232313133313233323131303031292931
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Quick surf report for Marosi:

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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 Marosi 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 Marosi at:
surf-forecast.com

Information about the Marosi Surf forecast

The above surf forecast table for Marosi provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Marosi can be found by selecting the local surf guide option on the grey menu. Our Marosi 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 (Marosi) 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 Marosi 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 Sumba? If you are looking for accommodation near Marosi, camping, hotels and holiday cottages in Sumba, consider staying in Adalara which is 29 km (18 miles) away.

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