The best times to visit Mirissa for ideal weather are

January 1st to March 11th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

 

 


Other Mirissa Travel Info

Weather in Mirissa

Temperature

Average temperatures in Mirissa vary barely at all. Considering humidity, temperatures feel hot all year with a chance of rain throughout most of the year. The area is far less temperate than some — in the 4th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Mirissa, the hottest months are May, April, and then March. See average monthly temperatures below. The warmest time of year is generally early May where highs are regularly around 89.3°F (31.8°C) with temperatures rarely dropping below 79°F (26.1°C) at night.

Mirissa Temperatures (Fahrenheit)

Key
High
Average
Low

Mirissa Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Mirissa Perceived Temperature (F)

Key
High
Average
Low

Mirissa Perceived Temperature (C)

Key
High
Average
Low

 

Average Mirissa Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 85.3 79.9 74.4
Feb 86.5 80.6 74.9
Mar 88.9 82.4 76.2
Apr 87.9 82.8 77.5
May 86.6 83.3 79.5
Jun 85.3 82.3 78.5
Jul 84.4 81.4 77.8
Aug 84.5 81.5 78
Sep 84.7 81.5 77.5
Oct 85.5 81.2 76.7
Nov 85.8 80.6 75.6
Dec 85.8 80.1 74.7

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 29.6 26.6 23.6
Feb 30.3 27 23.8
Mar 31.6 28 24.6
Apr 31.1 28.2 25.3
May 30.3 28.5 26.4
Jun 29.6 27.9 25.8
Jul 29.1 27.4 25.4
Aug 29.2 27.5 25.6
Sep 29.3 27.5 25.3
Oct 29.7 27.3 24.8
Nov 29.9 27 24.2
Dec 29.9 26.7 23.7

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Mirissa are January, February, and then March. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid January. For example, on the week of January 15th there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid June with an average of 4 days of significant precipitation the week of June 11th.

When can you find snow in Mirissa? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Mirissa.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Mirissa (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 13% 0 3.2
Feb 15% 0 2.3
Mar 20% 0 4.1
Apr 32% 0 8.2
May 39% 0 10.9
Jun 46% 0 7.1
Jul 36% 0 6
Aug 38% 0 8.3
Sep 48% 0 10.4
Oct 43% 0 11.4
Nov 40% 0 11.7
Dec 32% 0 9.4

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 13 0 8.1
Feb 15 0 5.8
Mar 20 0 10.4
Apr 32 0 20.8
May 39 0 27.7
Jun 46 0 18
Jul 36 0 15.2
Aug 38 0 21.1
Sep 48 0 26.4
Oct 43 0 29
Nov 40 0 29.7
Dec 32 0 23.9

 

Humidity and Wind

Mirissa has some extremely humid months, and high humidity throughout the year. The least humid month is March (74.7% relative humidity), and the most humid month is July (83.8%).

Wind in Mirissa is usually calm. The windiest month is June, followed by July and May. June’s average wind speed of around 8.3 knots (9.6 MPH or 15.4 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early to mid July where average top sustained speeds reach 14.1 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Mirissa.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 3.3 Barely noticeable 6.4 Light breeze
Feb 3.4 Barely noticeable 6.5 Light breeze
Mar 3.5 Barely noticeable 6.3 Light breeze
Apr 4.9 Light breeze 8.6 Gentle breeze
May 7.6 Gentle breeze 11.7 Light breeze
Jun 8.3 Gentle breeze 12.9 Significant breeze
Jul 8 Gentle breeze 12.5 Light breeze
Aug 7 Gentle breeze 10.9 Gentle breeze
Sep 6.7 Light breeze 11.4 Light breeze
Oct 4.8 Light breeze 8.4 Gentle breeze
Nov 3.8 Barely noticeable 7.5 Light breeze
Dec 3.5 Barely noticeable 6.7 Light breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 78%
Feb 77%
Mar 74.7%
Apr 78.8%
May 81.4%
Jun 83.1%
Jul 83.8%
Aug 82.5%
Sep 82.1%
Oct 80.8%
Nov 81.1%
Dec 80.2%

 

Is it Safe to Travel to Mirissa?

Our best data indicates this area is somewhat safe. As of Dec 04, 2023 there are travel warnings for Sri Lanka; exercise a high degree of caution. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Oct 26, 2023.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Mirissa, Sri Lanka is December, followed by October and August. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Mirissa in June. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is slightly extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 51.7 in June means 51.7% of the tourists vs. December.

 

 

Overall Mirissa Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel warm. Highs range from 89.3°F (31.8°C) and 85.6°F (29.8°C) with similar temperatures in the later months. Rain is somewhat common with 6 to 12 days of significant precipitation per month. Spring is the slowest for tourism, which makes it a good time for those looking for deals.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see moderate precipitation with 11 to 14 days of precipitation per month. June – August is fairly slow season for tourism in Mirissa, so lodging and other accommodations may cost slightly less.

Fall (September through November)

Fall daily highs range from 86.5°F (30.3°C) and 84.6°F (29.2°C), which will feel very nice given the humidity and wind. It rains or snows a great amount: 12 to 15 days per month. Tourism is the second busiest during these months due to the weather, so hotels may be slightly higher priced.

Winter (December through February)

Weather is perfect this time of year in Mirissa to be enjoyable for warm weather travelers. The average high during this season is between 88.1°F (31.2°C) and 85°F (29.4°C). On average, it rains or snows a fair amount: 4 to 10 times per month. These times of year are the busiest with tourists.

 

Best Times to Travel› Sri Lanka › Mirissa, Sri Lanka