Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
Marosi surfForecast / Sumba / Indonesia
48hr Weather and Surf, issued 1 pm Sunday 28 Dec 2025 WITAForecast 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
29.7° C
(Which is normal for this time of year)How big are the waves at Marosi today?
The current surf forecast for Marosi at 8PM is: 1.8m 15s primary swell from a Southwest direction and 0.1m 9s secondary swell from a West direction, 1.2m 6s secondary swell from a West direction (forecast issued at 01:00pm December 28). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (WITA) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Dec) | 5ft (1.6m) | 16s |
| Afternoon (28 Dec) | 4.5ft (1.4m) | 15s |
| Evening (28 Dec) | 6ft (1.8m) | 14s |
Table - waves today at Marosi. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 31 | |||||||||||||||||||||
| 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 10 | 10 | 10 | 11 | 11 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1179 | 1055 | 891 | 1421 | 1382 | 1500 | 590 | 529 | 459 | 453 | 434 | 307 | 307 | 342 | 445 | 441 | 865 | 838 | 722 | 666 | 604 | 614 | 604 | 604 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross | cross- off | cross- off | cross- off | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 3:44PM 2.34 | 3:53AM 1.88 | 4:42PM 2.36 | 5:31AM 1.71 | 5:52PM 2.42 | 7:21AM 1.69 | ||||||||||||||||||
Low Tide / height (m) | 10:08PM 1.01 | 9:51AM 0.92 | 11:35PM 0.95 | 10:52AM 1.09 | 1:10AM 0.78 | |||||||||||||||||||
Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 31 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 5:43 | - | - | - | - | - | - | - | 5:43 | - | - | - | - | - | - | - | 5:45 |
| Sunset | - | - | 6:24 | - | - | - | - | - | - | - | 6:24 | - | - | - | - | - | - | - | 6:25 | - | - | - | - | - |
 | | |  | |  | |  | | | |  | | | | | | | | | | | |  | |
Rain (mm) | 2 | 2 | 1 | - | - | 5 | 3 | - | - | - | - | - | 2 | 3 | 5 | 3 | 1 | 3 | 3 | - | - | - | - | - |
| Temp. °C | 28 | 28 | 28 | 28 | 28 | 27 | 26 | 28 | 29 | 29 | 29 | 28 | 27 | 26 | 26 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Feels °C (?) | 28 | 28 | 29 | 31 | 30 | 28 | 28 | 30 | 29 | 29 | 31 | 31 | 30 | 29 | 29 | 30 | 30 | 30 | 31 | 31 | 31 | 31 | 31 | 31 |
- 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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