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Polonnaruwa

Weather in Полоннарува: What to Expect by Season

Photo: Bernard Gagnon, CC BY-SA 3.0

Weather overview

Полоннарува enjoys a tropical climate year-round, with warm temperatures that rarely dip below 24 °C even at night. The weather here is shaped by two distinct seasons: a dry period and a rainy one, each offering a different experience for travelers.

From January to March, Полоннарува sees plenty of sunshine and minimal rainfall, making it one of the most comfortable times to explore the city’s ancient ruins and natural landscapes. By April, temperatures rise, and the air becomes noticeably warmer, though the dry conditions persist until late May.

The monsoon arrives in October, bringing frequent showers that last through December. While the rain can be heavy at times, it also cools the air slightly, offering a break from the heat of the earlier months.

Temperature

Temperatures in Полоннарува remain consistently warm, with daytime highs often reaching 30–35 °C throughout the year. The hottest months are April, May, and June, when the mercury can climb to 34–35 °C, especially in the afternoons.

Even during the cooler months, such as January and December, the average temperature hovers around 26–29 °C, ensuring that Полоннарува never feels chilly. Nighttime temperatures drop only slightly, staying within the 24–26 °C range, so light clothing is always a good choice.

The transition from September to October marks a subtle shift, as the rainy season begins to temper the heat. While the days remain warm, the frequent showers help keep the air from becoming oppressively hot, making it a more bearable time to visit.

Average air temperature °C
Average air temperature
Month Minimum Maximum
January 24 28.9
February 24.5 29.9
March 24.7 31.8
April 25.5 33.9
May 26.1 34.4
June 26.4 35
July 26 34.7
August 25.6 34.9
September 25.3 34.1
October 24.5 31.9
November 24.1 29.8
December 24 29.2

Precipitation

Полоннарува experiences two distinct rainfall patterns. The dry season, from February to August, sees minimal precipitation, with monthly totals rarely exceeding 100 mm. June and July are particularly dry, with just 35–60 mm of rain spread over a few days.

The rainy season kicks off in October, with November being the wettest month, bringing over 400 mm of rainfall. Showers during this time can be intense but are often short-lived, giving way to sunny spells. By December, the rain begins to taper off, though it remains more frequent than in the dry months.

Travelers visiting Полоннарува during the rainy season should be prepared for sudden downpours, especially in the afternoons. While the rain can disrupt outdoor plans, it also lends the landscape a lush, vibrant quality that’s worth experiencing.

Precipitation amount mm
Precipitation amount
Month Precipitation
January 139.6
February 77.7
March 64.3
April 40.7
May 124.4
June 35.2
July 60.7
August 42.8
September 171.6
October 237.1
November 406
December 307.2

What to pack

For a trip to Полоннарува during the dry season, pack lightweight, breathable clothing to stay comfortable in the 30–35 °C heat. A wide-brimmed hat, sunglasses, and sunscreen are essential for protection against the strong tropical sun, especially if you plan to explore the ruins or spend time outdoors.

If you’re visiting between October and December, include a compact rain jacket or umbrella in your luggage. Quick-drying fabrics and waterproof footwear will help you stay comfortable during sudden showers. Even in the rainy season, temperatures remain warm, so heavy layers aren’t necessary.

Regardless of when you visit Полоннарува, insect repellent is a good idea, as the warm, humid climate can attract mosquitoes. A reusable water bottle will also come in handy, as staying hydrated is key to enjoying your time in the city’s heat.

Average monthly wind m/s
Average monthly wind
Month Wind speed
January 4.4
February 4.3
March 3.4
April 2.9
May 4.3
June 5.1
July 5.1
August 4.1
September 4.3
October 3.2
November 3.2
December 3.6