Christchurch monthly weather averages

Average daytime temperature

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

Christchurch average temperature chart (Celsius) Christchurch average temperature chart (Fahrenheit)
Average monthly temperatures in Christchurch (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 7.4 7.5 9.5 12.1 15.4 18.5 20.6 20.3 18.1 14.8 10.6 8.4
°F 45.3 45.5 49.2 53.8 59.8 65.3 69.1 68.5 64.6 58.6 51.1 47.1

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.

Christchurch monthly rainfall chart (mm) Christchurch monthly rainfall chart (inches)
Average monthly rainfall in Christchurch (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 89 63 66 51 56 54 42 57 69 83 86 91
inches 3.5 2.5 2.6 2 2.2 2.1 1.6 2.2 2.7 3.3 3.4 3.6
Rainy days 17 13 15 12 13 11 9 11 12 15 15 16

Average daily sunshine

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

Christchurch average daily sunshine chart
Average daily sunshine Christchurch
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 2.2 3.1 4.4 6.3 7.5 8.1 7.7 7.3 5.7 4.1 3 2.2

Day / night temperatures

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

Christchurch average minimum / maximum temperatures (Celsius) Christchurch average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Christchurch (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 1.9 1.8 2.7 4.3 7.2 10.1 12 11.9 10.1 7.9 4.3 2.7
Max °C 7.5 7.7 9.7 12.3 15.7 18.7 20.8 20.5 18.3 15 10.8 8.6
Min °F 35.4 35.2 36.9 39.7 44.9 50.2 53.6 53.4 50.2 46.1 39.7 36.8
Max °F 40.5 40.5 43.2 46.9 52.5 57.9 61.5 61.2 57.6 52.5 45.5 42.1

Sea temperature

The graph below shows the average sea temperature.

Christchurch average sea temperature chart (Celsius) Christchurch average sea temperature chart (Fahrenheit)
Average sea temperature around Christchurch in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 9.6 8.6 8.5 9.5 11.2 13.5 15.6 16.9 16.9 15.7 13.6 11.4
°F 49.3 47.4 47.3 49.1 52.2 56.3 60.1 62.4 62.3 60.2 56.6 52.5

Wind speed

The graph below shows the average wind speed.

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

Christchurch relative humidity averages
Average relative humidity in Christchurch
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
90% 87% 84% 81% 81% 80% 80% 82% 86% 89% 89% 91%

Other monthly averages

UV index Best time to go?

Christchurch weather stats

Christchurch weather statistics
Hottest month: July 20.6°C 69.1°F
Driest month: July 42mm 1.7ins
Sunniest month: August 7.3hrs
Coldest month: January 7.4°C 45.3°F
Wettest month: December 91mm 3.6ins
Warmest sea: August 16.9°C 62.4°F
Map showing location of Christchurch (50.73306, -1.77567)

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