The Cave Surf Forecast

/ East (10 surf breaks) /

Sri Lanka (53 surf breaks) / Lat Long: (6.51° N 81.71° E)

Surf Forecasts:

The Cave surfForecast / East / Sri Lanka

48hr Weather and Surf, issued 10 pm Wednesday 17 Sep 2025 +0530

Forecast update in hr min s Forecast update imminent

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

Today's The Cave sea temperature is 29.1° C
(Which is slightly warmer than usual)

How big are the waves at The Cave today?

The current surf forecast for The Cave at 4AM is: 1.4m 14s primary swell from a South direction and 0.9m 14s secondary swell from a South-southwest direction, 0.8m 6s secondary swell from a South-southwest direction (forecast issued at 10:30pm September 17). The wind direction is predicted to be cross-shore.

Time (+0530) & Date	Wave Height	Wave Period
Morning (18 Sep)	3.5ft (1.0m)	14s
Afternoon (18 Sep)	4.5ft (1.3m)	13s
Evening (18 Sep)	3.5ft (1.1m)	12s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Wed 17		Thursday 18								Friday 19								Saturday 20
	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	11 AM	2 PM	5 PM
Rating (10 max)	1	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	S	S	SSW	S	S	SSW	S	S	S	S	S	S	S	S	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW
Period(s) (?)	14	14	14	14	14	13	13	13	13	12	12	12	12	11	17	18	18	18	17	17	17	16	16	16
Wave Graph (?)
kJ (?)	515	423	336	711	377	295	569	470	314	420	409	339	339	157	237	280	184	348	336	333	404	380	371	366
Wind (km/h)	SW	WSW	WSW	SW	SW	SSW	SSW	SW	SW	SW	SW	SW	SW	SSW	SSW	SW	SW	SW	SW	SW	WSW	SW	SSW	SW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross	cross	cross	cross	cross- on	cross- on	cross- on	cross- on	cross	cross	cross	cross	cross- on	cross- on	cross- on	cross	cross	cross	cross	cross	cross- on	cross- on	cross- on
High Tide / height (m)				3:09AM 0.22			2:16PM 0.15					3:15AM 0.23			2:30PM 0.16					3:22AM 0.23				2:48PM 0.17
Low Tide / height (m)	8:07PM 0.03					9:29AM 0.08			8:20PM 0.02					9:29AM 0.08				8:35PM 0.01				9:34AM 0.07

	Wed 17		Thursday 18								Friday 19								Saturday 20
Sunrise	-	-	-	-	5:52	-	-	-	-	-	-	-	5:52	-	-	-	-	-	-	-	5:52	-	-	-
Sunset	-	-	-	-	-	-	-	6:00	-	-	-	-	-	-	-	6:00	-	-	-	-	-	-	-	6:00

Rain (mm)	-	1	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	28	27	27	27	29	30	29	28	27	27	27	26	27	29	28	28	27	27	26	26	28	31	30	29
Feels °C (?)	28	27	27	28	29	28	27	26	25	27	26	25	27	27	26	26	26	27	26	26	28	29	28	27

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 East

Wind Update Continuing clean conditions at The Cave (light winds from the SW at Pottuvil 43 km from The Cave). 1.3m 5s windswell from the SSW with a 1.1m 14s groundswell from the S and a 1.0m 11s groundswell, also from the S. 3 swells combining so expect closeout sets.
1 hour 49 minutes ago The Cave

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43 km away, 1 h 49 min ago

7 km/h

0.0

29.1

Air / Water (°C)

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