Radlett monthly weather averages

Average daytime temperature

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

Radlett average temperature chart (Celsius) Radlett average temperature chart (Fahrenheit)
Average monthly temperatures in Radlett (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.2 6.6 9.3 12.1 15.9 19.3 21.3 21 18.3 14.4 9.5 7
°F 43.2 43.8 48.8 53.9 60.7 66.7 70.3 69.8 65 58 49 44.6

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.

Radlett monthly rainfall chart (mm) Radlett monthly rainfall chart (inches)
Average monthly rainfall in Radlett (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 60 43 52 49 52 56 49 53 55 61 61 64
inches 2.4 1.7 2.1 1.9 2.1 2.2 1.9 2.1 2.2 2.4 2.4 2.5
Rainy days 18 13 16 15 14 12 11 12 12 14 17 16

Average annual rainfall in Radlett: 706.4mm (278.1 inches)

Average daily sunshine

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

Radlett average daily sunshine chart
Average daily sunshine Radlett
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 1.9 2.7 3.8 5.2 6.7 7.2 6.7 6.5 5.3 3.8 2.5 1.8

Day / night temperatures

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

Radlett average minimum / maximum temperatures (Celsius) Radlett average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Radlett (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 0.9 0.9 2.1 3.9 6.7 9.7 11.7 11.6 9.7 7.2 3.4 1.7
Max °C 6.4 6.7 9.5 12.4 16.2 19.5 21.5 21.3 18.6 14.6 9.6 7.2
Min °F 33.5 33.6 35.8 38.9 44 49.5 53.1 52.8 49.4 45 38.1 35
Max °F 38.5 38.8 42.4 46.6 52.5 58.3 61.9 61.5 57.4 51.6 43.7 39.9

Sea temperature

The graph below shows the average sea temperature.

Radlett average sea temperature chart (Celsius) Radlett average sea temperature chart (Fahrenheit)
Average sea temperature around Radlett in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 8.9 7.9 7.9 9.1 11 13.3 15.5 17 17 15.6 13.2 10.7
°F 48 46.2 46.2 48.4 51.8 55.9 59.9 62.6 62.6 60 55.7 51.3

Wind speed

The graph below shows the average wind speed.

Radlett average winspeed by month (km/h) Radlett average winspeed by month (mph)
Average wind speed in Radlett (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 16 16 16 16 14 13 13 13 13 13 15 16
mph 10 10 10 10 9 8 8 8 8 8 9 10

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.

Radlett relative humidity averages
Average relative humidity in Radlett
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
90% 87% 83% 79% 78% 77% 77% 78% 82% 87% 90% 92%

Other monthly averages

UV index Best time to go?

Radlett weather stats

Radlett weather statistics
Hottest month: July 21.3°C 70.3°F
Driest month: February 43mm 1.7ins
Sunniest month: August 6.5hrs
Coldest month: January 6.2°C 43.2°F
Wettest month: December 64mm 2.5ins
Warmest sea: August 17°C 62.6°F
Map showing location of Radlett (51.68593, -0.31868) Radlett map pin © Google

Locations nearby

Top United Kingdom locations