Marosi Surf Forecast

/ Sumba (6 surf breaks) /

Indonesia (163 surf breaks)

Surf Forecasts

Marosi surfForecast / Sumba / Indonesia

48hr Weather and Surf, issued 1 pm Sunday 17 Aug 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 26.5° C
(Which is normal for this time of year)

How big are the waves at Marosi today?

The current surf forecast for Marosi at 5PM is: 1.4m 14s primary swell from a Southwest direction and 1.1m 5s secondary swell from a Southeast direction (forecast issued at 01:00pm August 17). The wind direction is predicted to be cross-shore.

Time (WITA) & Date	Wave Height	Wave Period
Morning (17 Aug)	4.5ft (1.4m)	13s
Afternoon (17 Aug)	4.5ft (1.4m)	14s
Evening (17 Aug)	4.5ft (1.3m)	14s

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

Hourly 12 Days

Sumba Surf

Print Surf Table

Updates in hr min s Forecast update imminent

	Sunday 17					Monday 18								Tuesday 19								Wednesday 20
	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)	1	1	1	1	3	3	3	2	0	0	0	2	3	3	2	1	0	0	1	1	3	3	3	2
Swell Height Map See all maps
Wave Height (m) & direction (?)	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SSW
Period(s) (?)	13	14	14	14	14	14	13	13	13	13	13	12	12	12	12	13	13	13	13	13	13	13	13	19
Wave Graph (?)
Energy (?)	815	822	872	741	742	834	588	465	466	409	381	417	621	515	474	452	394	597	537	694	578	590	531	791
Wind (km/h)	SSE	SE	SE	ESE	ENE	ENE	E	E	SSE	SSE	SE	ENE	NE	ENE	E	ESE	SSE	SE	SE	ESE	E	E	NE	ESE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- on	cross	cross	cross- off	cross- off	cross- off	cross- off	cross- on	cross- on	cross	cross- off	cross- off	cross- off	cross- off	cross	cross- on	cross- on	cross	cross	cross- off	cross- off	cross- off	cross
High Tide / height (m)			3:35PM 1.70				3:49AM 2.43					5:29PM 1.48				5:22AM 2.26					8:29PM 1.56			7:21AM 2.27
Low Tide / height (m)					8:55PM 1.01					11:17AM 0.89			9:44PM 1.26					1:37PM 0.85				12:22AM 1.42

	Sunday 17					Monday 18								Tuesday 19								Wednesday 20
Sunrise	-	-	-	-	-	-	-	6:13	-	-	-	-	-	-	-	6:11	-	-	-	-	-	-	-	6:11
Sunset	-	-	6:00	-	-	-	-	-	-	-	6:00	-	-	-	-	-	-	-	6:00	-	-	-	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	25	26	26	25	25	24	23	24	25	26	26	25	25	24	23	24	25	26	26	25	25	24	23	24
Feels °C (?)	25	27	26	25	27	26	24	25	25	26	27	28	28	26	24	25	25	27	26	26	27	25	24	25

Map Icons:
Break
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

Wind Update Still cross-shore at Marosi (fresh winds from the SE at Bali International Airport 454 km from Marosi). 1.3m 13s groundswell from the SW with a 1.1m 6s windswell from the SE and a 0.6m 6s windswell from the SSE. 3 swells combining so expect closeout sets.
1 hour 58 minutes ago Marosi

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