Cobblestones Surf Forecast

/ Sumbawa (17 surf breaks) /

Indonesia (168 surf breaks)

Surf Forecasts:

Cobblestones surfForecast / Sumbawa / Indonesia

48hr Weather and Surf, issued 7 am Tuesday 14 Oct 2025 WITA

Forecast update in hr min s Forecast update imminent

Cobblestones surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Cobblestones sea temperature is 29.0° C
(Which is 1.0°C warmer than normal for this time of year)

How big are the waves at Cobblestones today?

The current surf forecast for Cobblestones at 11AM is: 0.9m 24s primary swell from a Southwest direction and 0.9m 12s secondary swell from a South-southwest direction (forecast issued at 07:00am October 14). The wind direction is predicted to be cross-offshore and the swell rating is 4.

Time (WITA) & Date	Wave Height	Wave Period
Morning (14 Oct)	2ft (0.6m)	25s
Afternoon (14 Oct)	4ft (1.2m)	23s
Evening (14 Oct)	5.5ft (1.7m)	21s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Tuesday 14							Wednesday 15								Thursday 16								Fri 17
	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	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM
Rating (10 max)	3	3	4	3	2	3	5	!	!	!	!	!	!	!	!	!	!	!	!	!	!	!	4	4
Swell Height Map See all maps
Wave Height (m) & direction (?)	SSW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW
Period(s) (?)	12	25	24	23	22	21	20	20	19	18	18	18	18	17	17	16	16	16	16	16	16	15	15	15
Wave Graph (?)
kJ (?)	269	494	808	1245	2058	2416	3106	4153	4236	4059	4075	4434	4384	4090	3630	3015	3385	3137	2954	2726	2322	1967	1542	1542
Wind (km/h)	ESE	ESE	SE	SSE	SSE	SSE	SE	ESE	SE	ESE	ESE	SE	SSE	ESE	SE	ESE	E	E	ESE	SSE	SSE	SE	E	E
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	glass	cross- off	cross- off	cross	cross	cross	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross	cross	cross- off	cross- off	off
High Tide / height (m)					3:01PM 1.76				2:49AM 2.25					5:44PM 1.69				5:14AM 2.00				7:45PM 1.93
Low Tide / height (m)			8:51AM 0.79				8:09PM 1.27				10:26AM 1.04				10:10PM 1.52					12:51PM 1.06				1:33AM 1.38

	Tuesday 14							Wednesday 15								Thursday 16								Fri 17
Sunrise	-	5:43	-	-	-	-	-	-	-	5:43	-	-	-	-	-	-	-	5:43	-	-	-	-	-	-
Sunset	-	-	-	-	6:00	-	-	-	-	-	-	-	6:00	-	-	-	-	-	-	-	6:00	-	-	-

Rain (mm)	-	-	-	-	-	1	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	26	28	30	30	29	27	27	27	26	28	30	30	29	28	27	27	26	28	30	30	29	28	27	27
Feels °C (?)	31	32	32	32	31	30	31	31	30	32	32	32	31	32	31	31	30	31	32	31	31	32	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)

Recent Eyeball Surf Reports for Sumbawa

Wind Update Offshore wind has become cross-off at Cobblestones (light winds from the ESE at Bali International Airport 353 km from Cobblestones). 1.0m 12s groundswell from the SSW with a 0.2m 16s long period groundswell from the SW and a 0.2m 25s long period groundswell, also from the SW. 3 swells combining to make bigger set waves.
1 hour 12 minutes ago Cobblestones

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