Roscommon monthly weather averages

Contents

Average daytime temperature

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

Roscommon average temperature chart (Celsius) Roscommon average temperature chart (Fahrenheit)
Average monthly temperatures in Roscommon (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 7.1 7.5 9.5 11.9 14.6 17.3 18.7 18.3 16.1 13.2 9.3 7.8
°F 44.8 45.4 49.1 53.4 58.2 63.1 65.7 65 61 55.7 48.7 46.1

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.

Roscommon monthly rainfall chart (mm) Roscommon monthly rainfall chart (inches)
Average monthly rainfall in Roscommon (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 100 69 76 60 74 68 68 87 96 103 100 103
inches 3.9 2.7 3 2.4 2.9 2.7 2.7 3.4 3.8 4 4 4
Rainy days 21 17 20 17 18 17 17 19 19 21 20 21

Average annual rainfall in Roscommon: 1047.733mm (412.5 inches)

Average daily sunshine

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

Roscommon average daily sunshine chart
Average daily sunshine Roscommon
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 1.8 2.5 3.4 4.9 5.6 5.2 4.4 4.4 3.7 2.8 2.2 1.5

Day / night temperatures

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

Roscommon average minimum / maximum temperatures (Celsius) Roscommon average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Roscommon (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 1.4 1.4 2.4 3.3 5.6 8.5 10.5 10.1 8.3 6.5 3 2.3
Max °C 7.3 7.6 9.7 12.1 14.8 17.5 18.9 18.6 16.3 13.4 9.5 8
Min °F 34.4 34.5 36.2 37.9 42.1 47.3 50.9 50.1 46.9 43.6 37.3 36.1
Max °F 39.7 40.1 42.8 45.9 50.4 55.4 58.5 57.7 54.1 49.8 43.2 41.2

Sea temperature

The graph below shows the average sea temperature.

Roscommon average sea temperature chart (Celsius) Roscommon average sea temperature chart (Fahrenheit)
Average sea temperature around Roscommon in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 9.9 9.4 9.2 9.8 11.1 13 14.7 15.2 14.4 13.1 11.7 10.7
°F 49.8 48.8 48.6 49.6 52 55.5 58.4 59.3 58 55.5 53.1 51.2

Wind speed

The graph below shows the average wind speed.

Roscommon average winspeed by month (km/h) Roscommon average winspeed by month (mph)
Average wind speed in Roscommon (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 18 18 18 16 16 14 14 14 15 17 16 18
mph 11 11 11 10 10 9 9 9 9 11 10 11

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.

Roscommon relative humidity averages
Average relative humidity in Roscommon
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
92% 88% 85% 82% 81% 81% 83% 85% 87% 90% 92% 94%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Roscommon weather stats

Roscommon weather statistics
Hottest month: July 18.7°C 65.7°F
Driest month: April 60mm 2.4ins
Sunniest month: April 4.9hrs
Coldest month: January 7.1°C 44.8°F
Wettest month: October 103mm 4.1ins
Warmest sea: August 15.2°C 59.4°F
Map showing location of Roscommon (53.63333, -8.18333) Roscommon map pin © Google

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