Mullion monthly weather averages

Average daytime temperature

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

Mullion average temperature chart (Celsius) Mullion average temperature chart (Fahrenheit)
Average monthly temperatures in Mullion (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 8.5 8.2 9.5 11.3 13.8 16.6 18.5 18.6 16.8 14.2 11 9.5
°F 47.4 46.8 49.1 52.3 56.8 61.9 65.3 65.4 62.2 57.5 51.9 49.2

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.

Mullion monthly rainfall chart (mm) Mullion monthly rainfall chart (inches)
Average monthly rainfall in Mullion (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 127 100 93 60 62 59 58 70 80 103 117 122
inches 5 3.9 3.7 2.4 2.5 2.3 2.3 2.7 3.1 4.1 4.6 4.8
Rainy days 22 17 18 15 14 13 12 14 15 18 20 21

Average annual rainfall in Mullion: 1094.933mm (431.1 inches)

Average daily sunshine

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

Mullion average daily sunshine chart
Average daily sunshine Mullion
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 2 3 4.3 6.4 7.4 7.5 7.3 6.8 5.5 3.7 2.7 1.9

Day / night temperatures

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

Mullion average minimum / maximum temperatures (Celsius) Mullion average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Mullion (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 4 3.7 4.4 5.4 7.9 10.5 12.4 12.5 11.1 9.3 6.3 5
Max °C 8.7 8.4 9.7 11.4 14 16.8 18.7 18.7 16.9 14.3 11.2 9.7
Min °F 39.1 38.6 39.8 41.7 46.1 50.8 54.2 54.5 52 48.7 43.3 40.9
Max °F 43.3 42.8 44.6 47.1 51.6 56.5 59.9 60.1 57.2 53.2 47.7 45.1

Sea temperature

The graph below shows the average sea temperature.

Mullion average sea temperature chart (Celsius) Mullion average sea temperature chart (Fahrenheit)
Average sea temperature around Mullion in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 10.2 9.4 9.2 9.8 11.5 13.8 15.9 16.7 16 14.5 12.7 11.3
°F 50.4 49 48.6 49.7 52.6 56.8 60.6 62.1 60.9 58.1 54.9 52.3

Wind speed

The graph below shows the average wind speed.

Mullion average winspeed by month (km/h) Mullion average winspeed by month (mph)
Average wind speed in Mullion (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 24 23 22 21 20 18 17 17 18 20 22 24
mph 15 15 14 13 12 11 11 11 11 13 14 15

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.

Mullion relative humidity averages
Average relative humidity in Mullion
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
90% 89% 88% 85% 85% 85% 86% 87% 89% 90% 89% 90%

Other monthly averages

UV index Best time to go?

Mullion weather stats

Mullion weather statistics
Hottest month: August 18.6°C 65.5°F
Driest month: July 58mm 2.3ins
Sunniest month: May 7.4hrs
Coldest month: February 8.2°C 46.8°F
Wettest month: January 127mm 5ins
Warmest sea: August 16.7°C 62.1°F
Map showing location of Mullion (50.02706, -5.24248) Mullion map pin © Google

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