Mirissa weather in September (Matara District, Sri Lanka)

What should you pack for a trip to Mirissa in September? Use this page to get an overview of the month’s weather conditions.

Temperatures

The month of September in Mirissa typically brings high temperatures and heavy rainfall. Throughout the day, temperatures typically settle at around 29°C. But by evening, they drop to around 25°C.

Keep in mind that while these are the average temperatures, there can be days that are even hotter. It's essential to be prepared for such heat. Wearing light, breathable fabrics and protecting yourself from the sun's intensity with hats or shades can make a difference. Hydration is key, so remember to drink plenty of water. Especially if you find yourself outdoors for a longer period.

Precipitation

Mirissa in September falls under the rainy season with heavy rainfall, averaging around 225 mm for the month. Looking at the last 30 years, the data shows about 11 days with rain.

Average sunshine

Expect a moderate amount of sunlight, with approximately 180 hours. This means a pleasant mix of sun and clouds.

If your ideal day consists of dry skies and moderate temperatures January, February, March, July and August generally stand out with the best circumstances. While May, June, October and November tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Mirissa climate page with graphs.

 

Mirissa, monthly averages in September

Min Temperature 25°C  

Max Temperature 29°C  

Chance of Rain 37%  

Precipitation 225 mm  

Rainy days 11 days  

Sunshine 180 hours *  

Percentage Sunshine *  

* Data from: Galle, Sri Lanka (29 KM, 18 Miles).

Where to go in Sri Lanka in September

Find out more about the weather in Sri Lanka and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

7/10

Cycling

7/10

Walking

7/10

Camping

7/10

Outdoor sports

7/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Mirissa.

Our site offers climate and forecast data for every country in the world. Are you going to Sri Lanka? On this website you can find historical weather averages for many cities in Sri Lanka. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.