Nelson monthly weather averages

Average daytime temperature

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

Nelson average temperature chart (Celsius) Nelson average temperature chart (Fahrenheit)
Average monthly temperatures in Nelson (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 21.9 22.1 20.4 17.5 14.5 12 11.3 12.3 14.2 16.3 18.2 20.2
°F 71.4 71.7 68.8 63.5 58 53.5 52.4 54.1 57.6 61.4 64.7 68.3

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.

Nelson monthly rainfall chart (mm) Nelson monthly rainfall chart (inches)
Average monthly rainfall in Nelson (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 97 77 108 125 128 110 121 133 111 127 119 104
inches 3.8 3 4.3 4.9 5 4.3 4.8 5.2 4.4 5 4.7 4.1
Rainy days 9 8 10 10 10 10 11 12 13 12 12 11

Average daily sunshine

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

Nelson average daily sunshine chart
Average daily sunshine Nelson
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 9 8.5 6.9 6.5 5.7 5.1 5.3 5.6 6.4 7.3 7.8 8.1

Day / night temperatures

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

Nelson average minimum / maximum temperatures (Celsius) Nelson average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Nelson (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 12.1 11.9 11 7.9 4.7 2.2 1.5 2.7 5 7.1 9 11
Max °C 22.2 22.3 20.7 17.8 14.7 12.2 11.6 12.5 14.5 16.6 18.4 20.4
Min °F 53.7 53.4 51.7 46.1 40.5 36 34.6 36.9 40.9 44.7 48.2 51.8
Max °F 62.8 62.8 60.4 55 49.5 45 43.7 45.7 49.5 53.2 56.7 60.3

Sea temperature

The graph below shows the average sea temperature.

Nelson average sea temperature chart (Celsius) Nelson average sea temperature chart (Fahrenheit)
Average sea temperature around Nelson in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 16.9 17.7 17.2 16.1 14.8 13.5 12.7 12.3 12.4 13 14.1 15.6
°F 62.4 63.9 62.9 60.9 58.6 56.3 54.9 54.2 54.4 55.4 57.3 60

Wind speed

The graph below shows the average wind speed.

Nelson average winspeed by month (km/h) Nelson average winspeed by month (mph)
Average wind speed in Nelson (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 12 10 10 9 9 8 8 9 11 12 12 12
mph 7 7 6 6 6 5 5 5 7 7 8 7

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.

Nelson relative humidity averages
Average relative humidity in Nelson
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
72% 76% 79% 83% 86% 87% 88% 85% 79% 74% 74% 74%

Other monthly averages

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Nelson weather stats

Nelson weather statistics
Hottest month: January 21.9°C 71.4°F
Driest month: February 77mm 3ins
Sunniest month: February 8.5hrs
Coldest month: July 11.3°C 52.3°F
Wettest month: August 133mm 5.2ins
Warmest sea: February 17.7°C 63.9°F
Map showing location of Nelson (-41.28333, 173.28333)

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