Kalawana Temperature by Month

The average annual maximum temperature in Kalawana, Ratnapura District, Sri Lanka is 30°C (86°F), with little variation between seasons. This page covers monthly averages, day-night differences, and how Kalawana compares to cities worldwide.

Year-round, Kalawana experiences a consistently comfortable climate. Maximum daytime temperatures range from a very warm 32°C (90°F) in March to a comfortable 29°C (84°F) in the coolest month, July. Nighttime temperatures range from 22°C (72°F) in March to 21°C (70°F) in July.

The chart below illustrates the average maximum day and minimum night temperatures in Kalawana by month:

From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. March, the warmest month, averages 276 hours of sunshine.

The chart below shows the average temperature throughout the year:

Kalawana's average annual maximum temperature is 30°C (86°F). To put that in context, here's how it compares to a few well-known destinations:

Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.

Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.

New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.

Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.

Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.

In Kalawana, July is the coolest month, with average highs of 29°C (84°F) and humidity around 78%, considered high. In March, the warmest month, temperatures average 32°C (90°F) with 71% humidity, conditions that feel high. For a full picture, see our humidity page.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained, so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.

For more on Kalawana's weather, including monthly rainfall, sunshine hours, and humidity, visit our Kalawana climate page.