Katunayaka Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Katunayaka.
Climate overview of Katunayaka
With consistently stable weather, Katunayaka, Gampaha District, Sri Lanka, sees little seasonal temperature change. Daytime highs average 31°C (88°F), ranging from 33°C (91°F) in March to 30°C (86°F) in August.
The city receives considerable rainfall, with around 2417 mm (95 in) annually. October is the wettest month. It has a distinct rainy season from April to November. The sunniest month is March, with 9.2 hours of sunshine per day on average.
Katunayaka Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Katunayaka - and find the best time to visit.
Monthly Temperature in Katunayaka
The climate in Katunayaka remains fairly constant, offering very warm temperatures throughout the year. Typically, average maximum daytime temperatures range from a very warm 33°C (91°F) in March to a very warm 30°C (86°F) in the coolest month, August.
Nights vary from 26°C (79°F) in March to around 24°C (75°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Katunayaka
Katunayaka is known for its substantial rainfall, with annual precipitation reaching 2417 mm (95 in). The climate in Katunayaka shows significant variation throughout the year. Expect heavy rainfall in October, the wettest month, with an average of 345 mm (14 in) of precipitation over 15 rainy days.
In contrast, the driest month January offers drier and sunnier days, with around 53 mm (2.1 in) of rainfall over 4 rainy days. For more details, please visit our Katunayaka Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Katunayaka
Katunayaka offers a pleasant mix of sunny and slightly overcast days. The difference in sunshine hours between March (9.2 hours daily) and September (6.3 hours daily) provides a bit of variety for visitors and residents.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Katunayaka by Month
The relative humidity is high throughout the year in Katunayaka.
The city experiences its highest humidity in June, reaching 79%. In February, the humidity drops to its lowest level at 69%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Katunayaka
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: January
- Warmest weather: January, February, March and April
- Most sunshine: March
- Fewest rainy days: January and February
- Seasonal pattern: A distinct rainy season from April to November
Frequently asked questions about the climate in Katunayaka
What is the best time to visit Katunayaka?
January typically offers the most optimal weather in Katunayaka. In contrast, April, May, June, July, August, September, October and November tend to have less optimal conditions. Katunayaka has a distinct rainy season from April to November.
What temperatures can I expect in Katunayaka?
Daytime highs range from 30°C (86°F) in August to 33°C (91°F) in March. Nighttime lows range from 24°C (75°F) to 26°C (79°F). Temperatures stay relatively stable year-round.
How much rain does Katunayaka get?
Annual rainfall is around 2417 mm (95 in). October is the wettest month with 345 mm (14 in), while January is the driest with 53 mm (2.1 in).
How sunny is Katunayaka?
Katunayaka receives around 2,623 hours of sunshine per year. March is the sunniest month with 276 hours, while September is the cloudiest with just 189 hours. Overall, Katunayaka enjoys abundant sunshine.
Katunayaka 3-Day Forecast
Katunayaka on the map
Katunayaka is highlighted - select any city to see its climate.
Popular this month
Where to go in August - average daytime high across popular destinations.
Colombo
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29°C (84°F) Nuwara Eliya28°C (82°F) 
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