Castlereagh monthly weather averages

Contents

Average daytime temperature

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

Castlereagh average temperature chart (Celsius) Castlereagh average temperature chart (Fahrenheit)
Average monthly temperatures in Castlereagh (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.7 6.8 8.7 11.1 13.8 16.8 18.2 17.9 15.7 12.9 9 7.5
°F 44.1 44.2 47.7 51.9 56.9 62.2 64.8 64.2 60.3 55.2 48.1 45.5

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.

Castlereagh monthly rainfall chart (mm) Castlereagh monthly rainfall chart (inches)
Average monthly rainfall in Castlereagh (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 101 71 78 63 65 68 63 89 94 100 96 94
inches 4 2.8 3.1 2.5 2.6 2.7 2.5 3.5 3.7 3.9 3.8 3.7
Rainy days 20 16 19 15 16 15 15 17 17 19 19 20

Average annual rainfall in Castlereagh: 1029.566mm (405.3 inches)

Average daily sunshine

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

Castlereagh average daily sunshine chart
Average daily sunshine Castlereagh
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 1.9 2.7 3.6 5.5 6.5 6.4 5.5 5.2 4.2 3.3 2.4 1.6

Day / night temperatures

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

Castlereagh average minimum / maximum temperatures (Celsius) Castlereagh average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Castlereagh (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 1.6 1.5 2.4 3.8 6 8.9 10.6 10.6 8.9 7 3.5 2.4
Max °C 6.9 6.9 8.9 11.3 14 17 18.4 18.1 15.9 13.1 9.1 7.6
Min °F 34.8 34.7 36.2 38.8 42.8 47.9 51.1 51 48 44.5 38.3 36.3
Max °F 39.6 39.6 42.1 45.5 50 55.2 58.1 57.7 54.3 50 43.3 41

Sea temperature

The graph below shows the average sea temperature.

Castlereagh average sea temperature chart (Celsius) Castlereagh average sea temperature chart (Fahrenheit)
Average sea temperature around Castlereagh in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 8.3 7.2 7.1 8.1 10 12.2 14 14.9 14.7 13.7 12 10.1
°F 47 45 44.8 46.6 49.9 53.9 57.2 58.8 58.5 56.7 53.6 50.2

Wind speed

The graph below shows the average wind speed.

Castlereagh average winspeed by month (km/h) Castlereagh average winspeed by month (mph)
Average wind speed in Castlereagh (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 23 22 22 19 18 17 17 17 19 21 21 22
mph 15 14 14 12 11 11 11 11 12 13 13 14

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.

Castlereagh relative humidity averages
Average relative humidity in Castlereagh
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
91% 88% 86% 84% 83% 84% 85% 86% 88% 90% 91% 91%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Castlereagh weather stats

Castlereagh weather statistics
Hottest month: July 18.2°C 64.8°F
Driest month: April 63mm 2.5ins
Sunniest month: May 6.5hrs
Coldest month: January 6.7°C 44.1°F
Wettest month: January 101mm 4ins
Warmest sea: August 14.9°C 58.8°F
Map showing location of Castlereagh (54.5735, -5.88472) Castlereagh map pin © Google

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