Alton monthly weather averages

Contents

Average daytime temperature

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

Alton average temperature chart (Celsius) Alton average temperature chart (Fahrenheit)
Average monthly temperatures in Alton (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.5 6.7 9.2 12 15.7 18.9 21 20.7 18 14.4 9.7 7.4
°F 43.6 44 48.6 53.6 60.3 66.1 69.7 69.2 64.5 57.9 49.5 45.3

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.

Alton monthly rainfall chart (mm) Alton monthly rainfall chart (inches)
Average monthly rainfall in Alton (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 89 60 71 56 62 55 52 61 74 82 88 92
inches 3.5 2.3 2.8 2.2 2.4 2.2 2 2.4 2.9 3.2 3.5 3.6
Rainy days 18 14 16 14 14 12 10 12 12 15 16 17

Average annual rainfall in Alton: 890.166mm (350.5 inches)

Average daily sunshine

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

Alton average daily sunshine chart
Average daily sunshine Alton
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 2 2.9 4.1 5.7 7 7.4 7 6.7 5.4 3.9 2.7 1.9

Day / night temperatures

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

Alton average minimum / maximum temperatures (Celsius) Alton average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Alton (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 1 0.8 2 3.6 6.5 9.5 11.4 11.3 9.4 7.1 3.5 1.9
Max °C 6.6 6.8 9.4 12.2 16 19.2 21.2 20.9 18.3 14.6 9.9 7.6
Min °F 33.8 33.4 35.6 38.5 43.6 49 52.5 52.3 48.8 44.7 38.3 35.3
Max °F 38.8 38.8 42.3 46.2 52.2 57.7 61.3 61 56.8 51.4 44.1 40.5

Sea temperature

The graph below shows the average sea temperature.

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

Alton average winspeed by month (km/h) Alton average winspeed by month (mph)
Average wind speed in Alton (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 17 16 17 16 15 14 13 13 13 13 16 16
mph 10 10 10 10 9 9 8 8 8 8 10 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.

Alton relative humidity averages
Average relative humidity in Alton
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
93% 90% 85% 82% 81% 80% 80% 82% 87% 90% 92% 93%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Alton weather stats

Alton weather statistics
Hottest month: July 21°C 69.8°F
Driest month: July 52mm 2ins
Sunniest month: August 6.7hrs
Coldest month: January 6.5°C 43.7°F
Wettest month: December 92mm 3.6ins
Warmest sea: August 17°C 62.6°F
Map showing location of Alton (51.14931, -0.97469) Alton map pin © Google

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