Ballymena monthly weather averages

Contents

Average daytime temperature

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

Ballymena average temperature chart (Celsius) Ballymena average temperature chart (Fahrenheit)
Average monthly temperatures in Ballymena (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 5.9 6 7.8 10.3 13.1 15.8 17.1 16.9 14.8 12.1 8.2 6.7
°F 42.6 42.7 46.1 50.5 55.6 60.5 62.7 62.4 58.7 53.7 46.7 44

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.

Ballymena monthly rainfall chart (mm) Ballymena monthly rainfall chart (inches)
Average monthly rainfall in Ballymena (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 108 73 86 66 68 73 73 97 105 114 106 102
inches 4.2 2.9 3.4 2.6 2.7 2.9 2.9 3.8 4.1 4.5 4.2 4
Rainy days 22 17 20 16 17 17 18 19 20 21 21 22

Average annual rainfall in Ballymena: 1118.467mm (440.3 inches)

Average daily sunshine

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

Ballymena average daily sunshine chart
Average daily sunshine Ballymena
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 1.6 2.6 3.3 5.5 6.3 6.1 4.9 4.8 3.8 2.9 2.1 1.3

Day / night temperatures

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

Ballymena average minimum / maximum temperatures (Celsius) Ballymena average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Ballymena (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 0.6 0.5 1.4 2.8 5.1 8 9.8 9.6 8 6 2.5 1.4
Max °C 6 6.1 8 10.5 13.3 16 17.3 17.1 15 12.2 8.3 6.8
Min °F 33.1 32.9 34.5 37 41.2 46.4 49.6 49.2 46.4 42.8 36.5 34.5
Max °F 37.9 37.9 40.5 43.9 48.6 53.6 56.3 55.9 52.7 48.4 41.7 39.4

Sea temperature

The graph below shows the average sea temperature.

Ballymena average sea temperature chart (Celsius) Ballymena average sea temperature chart (Fahrenheit)
Average sea temperature around Ballymena in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 8.7 7.8 7.6 8.5 10.2 12.3 14.1 14.9 14.6 13.5 11.9 10.2
°F 47.6 46 45.7 47.2 50.3 54.2 57.4 58.9 58.3 56.4 53.5 50.4

Wind speed

The graph below shows the average wind speed.

Ballymena average winspeed by month (km/h) Ballymena average winspeed by month (mph)
Average wind speed in Ballymena (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 25 24 23 20 19 18 18 18 20 22 23 24
mph 15 15 15 12 12 11 11 11 13 14 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.

Ballymena relative humidity averages
Average relative humidity in Ballymena
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
92% 89% 88% 86% 84% 85% 86% 88% 90% 91% 92% 93%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Ballymena weather stats

Ballymena weather statistics
Hottest month: July 17.1°C 62.8°F
Driest month: April 66mm 2.6ins
Sunniest month: May 6.3hrs
Coldest month: January 5.9°C 42.6°F
Wettest month: October 114mm 4.5ins
Warmest sea: August 14.9°C 58.8°F
Map showing location of Ballymena (54.86357, -6.27628) Ballymena map pin © Google

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