Katunayaka weather in September (Gampaha District, Sri Lanka)

How is the weather in Katunayaka in September? Here's what the weather might have in store during this month.

In September, Katunayaka generally has very high temperatures and heavy rainfall. Throughout the daytime, temperatures often hover around 30°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 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 extended periods.

Katunayaka in September falls under the rainy season with heavy rainfall, averaging around 250 mm for the month. Delving into the climate records from the past 30 years, one can predict that nearly 12 days of the month will see rainfall.

The city usually sees around 189 hours of sunlight, indicating a moderately sunny period.

If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Katunayaka. January, February and March typically offer the most agreeable circumstances. On the other hand, May, June, July, August, September, October and November tend to be characterized by conditions that may not be as optimal.

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

 

Katunayaka, monthly averages in September

Min TemperatureMin Temperature 25°C  
Max TemperatureMax Temperature 30°C  
Chance of RainChance of Rain 40%  
PrecipitationPrecipitation 250 mm  
Rainy daysRainy days 12 days  
HumidityHumidity 76% *  
SunshineSunshine 189 hours *  
Percentage SunshinePercentage Sunshine *  
* Data from: Colombo, Sri Lanka (29 KM, 18 Miles).

Where to go in Sri Lanka in September

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

Map not visible? Whoops sorry! Please refresh the page.
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 Katunayaka in September?

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 in September.

Swimming
7/10
Cycling
7/10
Walking
7/10
Camping
7/10
Outdoor sports
7/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Katunayaka.

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 climate conditions. Find out where to go with our weather planner.