Ratnapura monthly weather averages

  • Average daytime temperature

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

    Ratnapura average temperature chart
    Average monthly temperatures in Ratnapura (degrees centigrade and fahrenheit)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    °C 28.4 29.4 30.3 30.3 29.2 28.3 28.2 28.1 28.2 28.3 28.4 28
    °F 83.2 84.9 86.5 86.5 84.6 82.9 82.7 82.5 82.8 83 83.2 82.3

    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.

    Average monthly rainfall in Ratnapura (mm and inches)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    mm 97 112 147 271 319 258 205 191 264 357 308 198
    inches 3.8 4.4 5.8 10.7 12.6 10.2 8.1 7.5 10.4 14 12.1 7.8
    Rainy days 5 5 8 13 12 14 11 11 13 15 15 11
  • Average daily sunshine

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

    Average daily sunshine Ratnapura
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    Hrs sunshine 7.6 8.3 8.8 7.8 6.4 6.2 6.1 6.2 6.1 6.3 6.6 6.7
  • Day / night temperatures

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

    Maximum and minimum daily temperatures in Ratnapura (degrees centigrade and fahrenheit)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    Min °C 19.6 19.8 20.9 22.1 22.9 22.8 22.5 22.4 22.1 21.5 21 20.5
    Max °C 28.7 29.6 30.5 30.5 29.4 28.4 28.3 28.2 28.4 28.5 28.6 28.2
    Min °F 67.2 67.6 69.6 71.8 73.1 73 72.5 72.3 71.7 70.7 69.8 68.8
    Max °F 75.4 76.5 78.3 79.3 79 78.1 77.7 77.5 77.4 77 76.6 75.7
  • Sea temperature

    The graph below shows the average sea temperature.

    Average sea temperature around Ratnapura in degrees centigrade and fahrenheit
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    °C 27.7 28.2 29 29.8 29.4 28.5 28 27.8 28.1 28.4 28.6 28.1
    °F 81.9 82.7 84.2 85.6 84.9 83.3 82.4 82.1 82.5 83.2 83.5 82.5
  • Wind speed

    The graph below shows the average wind speed.

    Average wind speed in Ratnapura (mph and kmh)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    km/h 12 11 9 8 13 15 14 14 14 10 9 11
    mph 7 7 6 5 8 9 9 9 9 6 6 7

    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.

    Average relative humidity in Ratnapura
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    75% 72% 74% 79% 81% 80% 79% 78% 79% 81% 81% 79%

Other monthly averages

Ratnapura weather stats

Ratnapura weather statistics
Hottest month: April 30.3°C 86.5°F
Driest month: January 97mm 3.8ins
Sunniest month: March 8.8hrs
Coldest month: January 28.4°C 83.1°F
Wettest month: October 357mm 14.1ins
Warmest sea: April 29.8°C 85.6°F
Map showing location of Ratnapura (6.68278, 80.39917)

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