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Kalawana Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Kalawana.
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Climate overview of Kalawana
Kalawana, Ratnapura District, Sri Lanka, enjoys a steady climate throughout the year, with daytime temperatures typically around 30°C (86°F). March is the warmest month at 32°C (90°F), while July is the coolest at 29°C (84°F).
The city has a wet climate, receiving around 3428 mm (135 in) of rainfall per year. November is the wettest month. The most sunshine falls in March, with an average of 9.2 hours of daily sunshine.
Kalawana Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Kalawana - and find the best time to visit.
Monthly Temperature in Kalawana
The temperature in Kalawana remains steady throughout the year, providing a consistently very warm climate. On average, daytime temperatures range from a very warm 32°C (90°F) in March to a comfortable 29°C (84°F) in July.
Nighttime temperatures range from 24°C (75°F) in March to 21°C (70°F) in July.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Kalawana
Kalawana has a relatively rainy climate with high precipitation levels, averaging 3428 mm (135 in) of rainfall annually. The seasons in Kalawana bring significant changes in precipitation. The wettest month, November, receives heavy rainfall, with an average of 496 mm (20 in) of precipitation. This rainfall is distributed across 15 rainy days.
In contrast, the driest month, March, experiences much less rainfall, totaling 180 mm (7.1 in) over 8 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Kalawana 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 Kalawana
Kalawana enjoys sunny spells year-round. March sees up to 9.2 hours of daily sunshine, perfect for a sunny trip. September, the least sunny month, still offers a generous 6.3 hours of sun despite this cloudier time of the year.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Ratnapura, Sri Lanka (16 KM, 10 Miles).
Daily hours of sunshine
Data from: Ratnapura, Sri Lanka (16 KM, 10 Miles).
Humidity in Kalawana by Month
The relative humidity is high throughout the year in Kalawana.
The city experiences its highest humidity in June, reaching 79%. In January, 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
Data from: Ratnapura, Sri Lanka (16 KM, 10 Miles).
Best Time to Visit Kalawana
For the most comfortable conditions available during the year, consider visiting Kalawana in March, June, July and August. Conditions are usually least comfortable in January, February, April, May, September, October, November and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
very wet
Feb
wet
Mar
mixed
Apr
very wet
May
very wet
Jun
mixed
Jul
mixed
Aug
mixed
Sep
very wet
Oct
very wet
Nov
very wet
Dec
very wet
- Best overall: March, June, July and August
- Warmest weather: February, March and April
- Most sunshine: March
- Fewest rainy days: January and February
Frequently asked questions about the climate in Kalawana
What is the best time to visit Kalawana?
March, June, July and August typically offer the most optimal weather in Kalawana. In contrast, January, February, April, May, September, October, November and December tend to have less optimal conditions.
What temperatures can I expect in Kalawana?
Daytime highs range from 29°C (84°F) in July to 32°C (90°F) in March. Nighttime lows range from 21°C (70°F) to 24°C (75°F). Temperatures stay relatively stable year-round.
How much rain does Kalawana get?
Annual rainfall is around 3428 mm (135 in). November is the wettest month with 496 mm (20 in), while March is the driest with 180 mm (7.1 in).
How sunny is Kalawana?
Kalawana receives around 2,630 hours of sunshine per year. March is the sunniest month with 276 hours, while September is the cloudiest with just 190 hours. Overall, Kalawana enjoys abundant sunshine.
Kalawana 3-Day Forecast
Kalawana on the map
Kalawana is highlighted - select any city to see its climate.
Popular in October
Where to go in October - average daytime high across popular destinations.
Colombo
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