Oamaru monthly weather averages

Contents

Average daytime temperature

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

Oamaru average temperature chart (Celsius) Oamaru average temperature chart (Fahrenheit)
Average monthly temperatures in Oamaru (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 20.5 20.1 18.7 16.7 13.3 10.8 10.3 11.7 14 15.7 17.5 18.9
°F 68.9 68.2 65.7 62.1 55.9 51.5 50.5 53.1 57.2 60.2 63.5 66

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.

Oamaru monthly rainfall chart (mm) Oamaru monthly rainfall chart (inches)
Average monthly rainfall in Oamaru (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 48 42 56 44 46 38 49 44 29 45 41 53
inches 1.9 1.6 2.2 1.7 1.8 1.5 1.9 1.7 1.1 1.8 1.6 2.1
Rainy days 10 10 12 9 9 8 11 9 9 11 10 14

Average annual rainfall in Oamaru: 660.934mm (260.2 inches)

Average daily sunshine

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

Oamaru average daily sunshine chart
Average daily sunshine Oamaru
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 6.3 6.3 5.1 5.1 4.4 4.3 4.1 4.6 5.1 5.8 6.2 6.2

Day / night temperatures

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

Oamaru average minimum / maximum temperatures (Celsius) Oamaru average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Oamaru (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 9.7 9.2 8.2 5.4 2.7 0.3 0.3 1.2 3 4.7 6.5 8.7
Max °C 20.8 20.4 19 17 13.6 11.1 10.5 12 14.3 16 17.8 19.2
Min °F 49.4 48.6 46.8 41.7 36.8 32.5 32.5 34.2 37.3 40.4 43.6 47.6
Max °F 59.4 58.6 56.5 52.2 46.6 42.3 41.7 43.9 47.5 50.5 53.8 57

Sea temperature

The graph below shows the average sea temperature.

Oamaru average sea temperature chart (Celsius) Oamaru average sea temperature chart (Fahrenheit)
Average sea temperature around Oamaru in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 13.4 13.9 13.2 12 10.8 9.7 9 8.6 8.9 9.5 10.7 12.1
°F 56 57 55.7 53.7 51.4 49.5 48.2 47.6 48 49.2 51.3 53.8

Wind speed

The graph below shows the average wind speed.

Oamaru average winspeed by month (km/h) Oamaru average winspeed by month (mph)
Average wind speed in Oamaru (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 13 13 12 12 12 12 12 12 13 13 14 13
mph 8 8 8 7 8 7 7 7 8 8 9 8

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.

Oamaru relative humidity averages
Average relative humidity in Oamaru
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
74% 79% 79% 80% 81% 82% 82% 81% 76% 73% 74% 76%
Oamaru

Other monthly averages

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Current (hourly) weather 15 day forecast

Oamaru weather stats

Oamaru weather statistics
Hottest month: January 20.5°C 68.9°F
Driest month: September 29mm 1.1ins
Sunniest month: April 5.1hrs
Coldest month: July 10.3°C 50.5°F
Wettest month: March 56mm 2.2ins
Warmest sea: February 13.9°C 57°F
Map showing location of Oamaru (-45.07836, 170.98009) Oamaru map pin © Google

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