Watford monthly weather averages

Average daytime temperature

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

Watford average temperature chart (Celsius) Watford average temperature chart (Fahrenheit)
Average monthly temperatures in Watford (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.5 6.9 9.6 12.4 16.3 19.6 21.6 21.3 18.6 14.7 9.7 7.3
°F 43.7 44.4 49.3 54.4 61.3 67.3 70.9 70.3 65.5 58.4 49.4 45.2

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.

Watford monthly rainfall chart (mm) Watford monthly rainfall chart (inches)
Average monthly rainfall in Watford (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 60 41 54 50 56 55 49 56 55 63 63 64
inches 2.4 1.6 2.1 2 2.2 2.2 1.9 2.2 2.2 2.5 2.5 2.5
Rainy days 18 13 15 15 14 12 11 12 12 14 16 16

Average annual rainfall in Watford: 716.366mm (282 inches)

Average daily sunshine

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

Watford average daily sunshine chart
Average daily sunshine Watford
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 1.9 2.6 3.8 5.2 6.7 7.2 6.7 6.5 5.2 3.8 2.5 1.7

Day / night temperatures

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

Watford average minimum / maximum temperatures (Celsius) Watford average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Watford (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 1.2 1.2 2.4 4.2 7.1 10.2 12.2 11.9 10 7.4 3.6 2
Max °C 6.7 7.1 9.8 12.7 16.5 19.9 21.9 21.5 18.8 14.9 9.8 7.5
Min °F 34.1 34.1 36.3 39.5 44.8 50.3 53.9 53.4 50 45.2 38.5 35.5
Max °F 39 39.4 43 47.1 53.2 59 62.6 62.1 57.9 52 44.1 40.5

Sea temperature

The graph below shows the average sea temperature.

Watford average sea temperature chart (Celsius) Watford average sea temperature chart (Fahrenheit)
Average sea temperature around Watford 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.

Watford average winspeed by month (km/h) Watford average winspeed by month (mph)
Average wind speed in Watford (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 16 16 16 15 14 13 13 12 13 13 14 15
mph 10 10 10 9 9 8 8 8 8 8 9 9

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.

Watford relative humidity averages
Average relative humidity in Watford
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
90% 86% 82% 78% 77% 76% 76% 78% 82% 87% 90% 91%

Other monthly averages

UV index Best time to go?

Watford weather stats

Watford weather statistics
Hottest month: July 21.6°C 70.9°F
Driest month: February 41mm 1.6ins
Sunniest month: August 6.5hrs
Coldest month: January 6.5°C 43.7°F
Wettest month: December 64mm 2.5ins
Warmest sea: August 17°C 62.6°F
Map showing location of Watford (51.65531, -0.39602) Watford map pin © Google

Locations nearby

Top United Kingdom locations