Unawatuna Surf Forecast

/ West (43 surf breaks) /

Sri Lanka (53 surf breaks) / Lat Long: (6.01° N 80.24° E)

Surf Forecasts:

Unawatuna surfForecast / West / Sri Lanka

12 Day Weather and Surf, issued 4 am Friday 19 Sep 2025 +0530

Forecast update in hr min s Forecast update imminent

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

Today's Unawatuna sea temperature is 29.0° C
(Which is 1.2°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Unawatuna this week:

The surf forecast for Unawatuna over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 20) at 11PM. The primary swell is predicted to be 1.1m and 16s period with a secondary swell of 0.9m and 5s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Unawatuna in the next 12 days are 1.3m 19s and forecast to arrive on Tuesday (Sep 23) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Wednesday (Sep 24) at 8PM.

Wave Type	Time (+0530) & Date	Wave Height & Period
Next good surf (1 star+)	11PM (Sat 20th Sep)	3.5ft (1.1m) 16s
Best Surf	11PM (Sat 20th Sep)	3.5ft (1.1m) 16s
Most Powerful	5AM (Tue 23rd Sep)	4.5ft (1.3m) 19s

Table - best surf conditions forecast for Unawatuna over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Heavy rain (total 54mm), heaviest during Fri night. Warm (max 28°C on Sat afternoon, min 26°C on Fri night). Wind will be generally light.									Days 3-6 Weather Summary Heavy rain (total 39mm), heaviest during Mon morning. Warm (max 27°C on Mon morning, min 26°C on Mon night). Wind will be generally light.
	Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24			Thursday 25
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	2	2	2	2	2	2	1	1	1	2	3	3	2	2	2	1	1	0	0	1	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	S	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW
Period(s) (?)	13	18	17	16	16	15	15	14	14	22	21	20	18	18	16	16	15	15	14	14	17
Wave Graph (?)
kJ (?)	404	454	665	590	582	539	381	301	229	498	1032	1021	1050	877	742	715	566	485	478	446	367
Wind (km/h)	W	WSW	WSW	WSW	W	W	WSW	WSW	WSW	WSW	WSW	WSW	W	W	W	W	W	W	W	W	W
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off
High Tide / height (m)	1:29PM 0.46		1:57AM 0.49	1:53PM 0.49		2:19AM 0.54	2:16PM 0.52		2:40AM 0.57		2:38PM 0.53	3:01AM 0.59		3:01PM 0.54	3:23AM 0.60		3:24PM 0.54	3:45AM 0.60		3:48PM 0.52	4:09AM 0.58
Low Tide / height (m)		7:33PM 0.05		7:51AM 0.08	7:56PM 0.00		8:16AM 0.05	8:19PM -0.03		8:41AM 0.02		8:42PM -0.04	9:05AM 0.01		9:05PM -0.04	9:29AM 0.01		9:27PM -0.03	9:52AM 0.03		9:46PM -0.00

	Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24			Thursday 25
Sunrise	5:58	-	-	5:58	-	-	5:58	-	-	5:58	-	-	5:58	-	-	5:58	-	-	5:56	-	-
Sunset	-	6:06	-	-	6:06	-	-	6:05	-	-	6:05	-	-	6:04	-	-	6:04	-	-	6:02	-

Rain (mm)	6	5	10	3	2	10	4	5	9	5	2	6	4	3	5	4	3	7	5	5	9
Temp. °C	27	27	27	27	28	27	27	27	26	27	27	27	27	27	26	27	27	27	27	27	26
Feels °C (?)	29	29	30	29	29	29	29	28	28	29	28	29	29	28	27	28	28	29	28	27	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 West

Wind Update The wind is still cross-off at Unawatuna (light winds from the WSW at Ratmalana 98 km from Unawatuna). 1.1m 6s windswell from the WSW with a 0.9m 10s swell from the SSE and a 0.7m 12s groundswell from the S as well as a 0.4m 16s long period groundswell from the SSW. 4 swells combining so expect closeout sets.
1 hour 33 minutes ago Unawatuna

Expand

View all

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Unawatuna surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

Information about the Unawatuna Surf forecast

The above surf forecast table for Unawatuna provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Unawatuna can be found by selecting the local surf guide option on the grey menu. Our Unawatuna surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Unawatuna) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Unawatuna may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Unawatuna is 3 km (2 miles) from Galle. If you plan a holiday in West Sri Lanka, look for hotels and other accommodation in Galle. Galle has rooms for a wide range of budgets as well as car hire and transport links.