Hemel Hempstead monthly weather averages

Contents

Average daytime temperature

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

Hemel Hempstead average temperature chart (Celsius) Hemel Hempstead average temperature chart (Fahrenheit)
Average monthly temperatures in Hemel Hempstead (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6 6.4 9.1 11.9 15.9 19.1 21.1 20.9 18.1 14.3 9.3 6.9
°F 42.8 43.5 48.4 53.5 60.6 66.3 70 69.6 64.6 57.7 48.7 44.5

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.

Hemel Hempstead monthly rainfall chart (mm) Hemel Hempstead monthly rainfall chart (inches)
Average monthly rainfall in Hemel Hempstead (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 63 45 56 52 54 57 48 55 56 65 64 69
inches 2.5 1.8 2.2 2.1 2.1 2.2 1.9 2.1 2.2 2.5 2.5 2.7
Rainy days 18 14 16 15 14 12 12 13 12 15 17 17

Average annual rainfall in Hemel Hempstead: 734.033mm (289 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Hemel Hempstead

Hemel Hempstead average daily sunshine chart
Average daily sunshine Hemel Hempstead
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 1.9 2.6 3.8 5.1 6.6 7.1 6.6 6.4 5.2 3.8 2.5 1.8

Day / night temperatures

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

Hemel Hempstead average minimum / maximum temperatures (Celsius) Hemel Hempstead average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Hemel Hempstead (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 0.7 0.7 1.9 3.7 6.5 9.5 11.5 11.3 9.5 7 3.2 1.6
Max °C 6.2 6.6 9.3 12.2 16.1 19.3 21.4 21.1 18.4 14.5 9.4 7.1
Min °F 33.2 33.2 35.4 38.6 43.7 49.1 52.6 52.3 49 44.5 37.8 34.8
Max °F 38.1 38.5 42.1 46.2 52.3 57.9 61.5 61.2 57 51.3 43.3 39.7

Sea temperature

The graph below shows the average sea temperature.

Hemel Hempstead average sea temperature chart (Celsius) Hemel Hempstead average sea temperature chart (Fahrenheit)
Average sea temperature around Hemel Hempstead 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.

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

Hemel Hempstead relative humidity averages
Average relative humidity in Hemel Hempstead
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
91% 88% 83% 79% 78% 77% 77% 79% 83% 88% 91% 92%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Hemel Hempstead weather stats

Hemel Hempstead weather statistics
Hottest month: July 21.1°C 70°F
Driest month: February 45mm 1.8ins
Sunniest month: August 6.4hrs
Coldest month: January 6°C 42.8°F
Wettest month: December 69mm 2.7ins
Warmest sea: August 17°C 62.6°F
Map showing location of Hemel Hempstead (51.75369, -0.47517) Hemel Hempstead map pin © Google

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