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Polonnaruwa Weather and Climate: A Comprehensive Guide

Polonnaruwa maintains a fairly consistent very warm average temperature. It also experiences much rainfall throughout the year. Now, let’s break down all the climate details for a clearer picture.

Average maximum day and minimum night temperature

The temperature in Polonnaruwa remains steady throughout the year, providing a consistently very hot climate. Average daytime temperatures reach a very hot 36°C in May. In January, the coolest month of the year, temperatures drop to a comfortable 30°C.

At night, you can expect cooler temperatures, with averages dropping to around 22°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Polonnaruwa has a relatively rainy climate with high precipitation levels, averaging 1213 mm of rainfall annually. Polonnaruwa can be quite wet during November, receiving approximately 246 mm of precipitation over 15 rainy days.

In contrast June, experiences much drier conditions, with 20 mm of rainfall, spread across 7 rainy days. For more details, please visit our Polonnaruwa Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Forecast for Polonnaruwa

Sun   Jan 12
28°C | 23°C
E 4 m/s
25 mm
broken clouds and rain

broken clouds and rain

Mon   Jan 13
29°C | 23°C
E 4 m/s
17 mm
broken clouds and thunder

broken clouds and thunder

Tue   Jan 14
27°C | 23°C
E 3 m/s
17 mm
overcast and heavy rain

overcast and heavy rain

Select a Month of Interest

Check the conditions for any month of the year.

The best time of year to visit Polonnaruwa in Sri Lanka

Other facts from our historical weather data:
  • Which months have the greatest rainfall in Polonnaruwa?
    Most rainfall (rainy season) is seen in October, November and December.
  • Which is the hottest month in Polonnaruwa?
    May has an average maximum temperature of 36°C and is the hottest month of the year.
  • Which is the coolest month in Polonnaruwa?
    The coolest month is February with an average maximum temperature of 30°C.
  • Which is the wettest month in Polonnaruwa?
    November tops the wettest month list with 246 mm of rainfall.
  • Which is the driest month in Polonnaruwa?
    June is the driest month with 20 mm of precipitation.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.