Polonnaruwa monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Polonnaruwa

Polonnaruwa average temperature chart (Celsius) Polonnaruwa average temperature chart (Fahrenheit)
Average monthly temperatures in Polonnaruwa (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 28.9 30.6 32.1 32.7 32.6 32 31.9 31.9 32 31 29.7 28.8
°F 84.1 87.1 89.8 90.9 90.7 89.7 89.4 89.4 89.5 87.7 85.5 83.8

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Polonnaruwa monthly rainfall chart (mm) Polonnaruwa monthly rainfall chart (inches)
Average monthly rainfall in Polonnaruwa (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 130 100 84 150 91 54 70 73 98 257 309 290
inches 5.1 3.9 3.3 5.9 3.6 2.1 2.8 2.9 3.9 10.1 12.1 11.4
Rainy days 6 5 6 10 8 7 7 7 9 14 15 14

Average annual rainfall in Polonnaruwa: 1794.034mm (706.3 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Polonnaruwa

Polonnaruwa average daily sunshine chart
Average daily sunshine Polonnaruwa
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 7.3 8.2 9 8.4 7.1 6.7 6.5 7.1 6.8 6.7 6.2 6.3

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Polonnaruwa average minimum / maximum temperatures (Celsius) Polonnaruwa average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Polonnaruwa (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 22.1 22.2 23.3 24.3 25 25 24.6 24.3 24.1 23.5 22.9 22.7
Max °C 29.1 30.8 32.4 32.9 32.8 32.2 32.1 32.1 32.2 31.2 29.9 28.9
Min °F 71.8 72 73.9 75.7 77 77 76.2 75.7 75.3 74.2 73.2 72.9
Max °F 78.1 79.7 82 83.5 84 83.5 82.9 82.8 82.6 81.1 79.5 78.4

Sea temperature

The graph below shows the average sea temperature.

Polonnaruwa average sea temperature chart (Celsius) Polonnaruwa average sea temperature chart (Fahrenheit)
Average sea temperature around Polonnaruwa in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 27.5 28 29 29.9 29.8 29.1 28.8 28.6 28.8 28.9 28.8 27.9
°F 81.4 82.3 84.1 85.9 85.6 84.5 83.8 83.5 83.8 84.1 83.8 82.2

Wind speed

The graph below shows the average wind speed.

Polonnaruwa average winspeed by month (km/h) Polonnaruwa average winspeed by month (mph)
Average wind speed in Polonnaruwa (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 14 12 9 8 13 17 16 16 14 10 10 13
mph 9 7 6 5 8 11 10 10 9 7 6 8

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Polonnaruwa relative humidity averages
Average relative humidity in Polonnaruwa
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
75% 72% 72% 76% 74% 71% 70% 71% 72% 77% 80% 80%

Other monthly averages

UV index Best time to go?

Polonnaruwa weather stats

Polonnaruwa weather statistics
Hottest month: May 32.6°C 90.7°F
Driest month: June 54mm 2.1ins
Sunniest month: March 9hrs
Coldest month: January 28.9°C 84°F
Wettest month: November 309mm 12.2ins
Warmest sea: April 29.9°C 85.8°F
Map showing location of Polonnaruwa (7.93333, 81) Polonnaruwa map pin © Google

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