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Surf Forecasts:
Marosi surfForecast / Sumba / Indonesia
48hr Weather and Surf, issued 1 pm Wednesday 08 Oct 2025 WITA
How big are the waves at Marosi today?
The current surf forecast for Marosi at 3PM is: 1.7m 13s primary swell from a Southwest direction and 0.1m 15s secondary swell from a West direction (forecast issued at 01:00pm October 08). The wind direction is predicted to be onshore.
| Time (WITA) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (08 Oct) | 5.5ft (1.7m) | 13s |
| Afternoon (08 Oct) | 5.5ft (1.7m) | 13s |
| Evening (08 Oct) | 5.5ft (1.7m) | 13s |
Table - waves today at Marosi. (Swell directed towards the surf break)
Wednesday 08 | Thursday 09 | Friday 10 | Saturday 11 | |||||||||||||||||||||
| 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) (?) | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1011 | 996 | 996 | 996 | 996 | 891 | 816 | 689 | 607 | 646 | 597 | 587 | 578 | 536 | 464 | 456 | 441 | 499 | 461 | 443 | 1072 | 947 | 934 | 895 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | on | on | on | glass | glass | glass | cross- on | cross- on | cross- on | cross | glass | glass | glass | glass | on | on | cross- on | cross | cross | cross | cross | cross- on |
High Tide / height (m) | 10:55PM 3.19 | 11:30AM 2.71 | 11:27PM 3.26 | 12:06PM 2.58 | 12:00AM 3.22 | |||||||||||||||||||
Low Tide / height (m) | 4:49PM 0.30 | 5:23AM -0.15 | 5:19PM 0.32 | 6:00AM -0.18 | 5:50PM 0.40 | 6:39AM -0.08 | ||||||||||||||||||
Wednesday 08 | Thursday 09 | Friday 10 | Saturday 11 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 5:43 | - | - | - | - | - | - | - | 5:41 | - | - | - | - | - | - | - | 5:41 |
| Sunset | - | - | 5:58 | - | - | - | - | - | - | - | 5:58 | - | - | - | - | - | - | - | 5:58 | - | - | - | - | - |
 | | |  |  | | | |  | |  |  | | | | | | | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 27 | 27 | 27 | 26 | 26 | 26 | 25 | 26 | 27 | 27 | 27 | 26 | 26 | 26 | 25 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
| Feels °C (?) | 29 | 28 | 29 | 29 | 30 | 30 | 30 | 30 | 29 | 28 | 29 | 29 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 31 | 31 | 31 |
- 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)
Recent Eyeball Surf Reports for Sumba
Offshore wind has turned cross-on at Marosi (light winds from the W at Bali International Airport 454 km from Marosi). 1.5m 13s groundswell from the SW with a 0.8m 8s swell from the SSW and a 0.6m 14s groundswell from the SW. 3 swells combining to make bigger set waves.
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