Mirissa Surf Forecast

/ West (43 surf breaks) /

Sri Lanka (53 surf breaks) / Lat Long: (5.94° N 80.46° E)

Surf Forecasts:

Mirissa surfForecast / West / Sri Lanka

12 Day Weather and Surf, issued 4 am Thursday 18 Sep 2025 +0530

Forecast update in hr min s Forecast update imminent

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

Today's Mirissa sea temperature is 28.9° C
(Which is 1.0°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Mirissa this week:

The surf forecast for Mirissa over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 18) at 2PM. The primary swell is predicted to be 1.3m and 14s period with a secondary swell of 0.7m and 10s. Another secondary swell of 1.3m and 6s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Mirissa in the next 12 days are 1.4m 19s and forecast to arrive on Tuesday (Sep 23) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave Type	Time (+0530) & Date	Wave Height & Period
Next good surf (1 star+)	2PM (Thu 18th Sep)	4.5ft (1.3m) 14s
Best Surf	2PM (Thu 18th Sep)	4.5ft (1.3m) 14s
Most Powerful	5AM (Tue 23rd Sep)	4.5ft (1.4m) 19s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Heavy rain (total 37mm), heaviest during Thu morning. Warm (max 28°C on Fri afternoon, min 25°C on Thu afternoon). Wind will be generally light.									Days 3-6 Weather Summary Heavy rain (total 34mm), heaviest during Sun night. Warm (max 28°C on Sun morning, min 26°C on Sun night). Wind will be generally light.
	Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	3	2	1	1	1	2	2	2	1	1	1	1	2	2	2	2	2	2	2	2	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	S	S	S	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SW	SW	SSW	SSW	SSW	SSW
Period(s) (?)	14	13	13	17	18	17	16	16	15	15	14	14	22	21	20	18	18	16	16	15	14
Wave Graph (?)
kJ (?)	808	704	534	448	413	900	798	788	581	449	400	257	732	1199	1171	1292	1249	981	945	770	561
Wind (km/h)	W	W	WSW	WSW	W	WSW	W	W	WSW	WSW	WSW	WSW	WSW	WSW	W	W	W	W	W	W	W
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross
High Tide / height (m)	1:03PM 0.43		1:39AM 0.44	1:28PM 0.47		1:58AM 0.49	1:51PM 0.50		2:17AM 0.54	2:14PM 0.52		2:37AM 0.56		2:37PM 0.53	2:57AM 0.58		2:58PM 0.53	3:16AM 0.58		3:20PM 0.52	3:36AM 0.57
Low Tide / height (m)		7:24PM 0.09		7:31AM 0.13	7:43PM 0.05		7:55AM 0.09	8:03PM 0.01		8:18AM 0.06	8:23PM -0.01		8:41AM 0.03		8:42PM -0.02	9:03AM 0.02		9:01PM -0.01	9:25AM 0.02		9:21PM 0.00

	Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24
Sunrise	5:58	-	-	5:58	-	-	5:58	-	-	5:56	-	-	5:56	-	-	5:56	-	-	5:56	-	-
Sunset	-	6:06	-	-	6:06	-	-	6:05	-	-	6:05	-	-	6:04	-	-	6:04	-	-	6:02	-

Rain (mm)	9	4	5	4	2	3	2	2	6	4	3	8	4	2	6	2	1	4	3	2	6
Temp. °C	27	26	26	27	28	26	28	27	26	28	28	26	28	28	27	28	28	27	28	28	27
Feels °C (?)	29	29	29	29	29	28	29	28	28	29	29	28	29	29	29	29	29	29	29	29	29

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-on at Mirissa (moderate winds from the SW at Hambantota 77 km from Mirissa). 1.4m 13s groundswell from the S with a 1.2m 6s windswell from the WSW. 2 swells combining to make bigger set waves.
1 hour 46 minutes ago Mirissa

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Mirissa 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 Mirissa Surf forecast

The above surf forecast table for Mirissa provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Mirissa can be found by selecting the local surf guide option on the grey menu. Our Mirissa 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 (Mirissa) 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 Mirissa 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.

Mirissa is 5 km (3 miles) from the city of Weligama. If you plan a holiday in West Sri Lanka, look for hotels and other accommodation in Weligama. Weligama has rooms for a wide range of budgets as well as car hire and transport links.