Swindon monthly weather averages

Average daytime temperature

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

Swindon average temperature chart (Celsius) Swindon average temperature chart (Fahrenheit)
Average monthly temperatures in Swindon (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.2 6.5 9.1 11.9 15.5 18.9 20.8 20.4 17.8 14 9.2 7.2
°F 43.1 43.7 48.3 53.5 59.9 66 69.5 68.7 64 57.1 48.6 44.9

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.

Swindon monthly rainfall chart (mm) Swindon monthly rainfall chart (inches)
Average monthly rainfall in Swindon (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 65 48 59 47 57 56 46 58 59 62 62 72
inches 2.5 1.9 2.3 1.9 2.2 2.2 1.8 2.3 2.3 2.4 2.4 2.9
Rainy days 17 15 17 15 15 14 14 15 16 18 18 19

Average annual rainfall in Swindon: 739.433mm (291.1 inches)

Average daily sunshine

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

Swindon average daily sunshine chart
Average daily sunshine Swindon
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 1.9 2.7 3.9 5.3 6.6 7 6.8 6.3 5.1 3.6 2.6 1.8

Day / night temperatures

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

Swindon average minimum / maximum temperatures (Celsius) Swindon average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Swindon (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 0.7 0.6 1.8 3.5 6.3 9.3 11.2 11 9.2 6.7 3 1.5
Max °C 6.3 6.7 9.3 12.2 15.8 19.1 21.1 20.6 18 14.2 9.4 7.3
Min °F 33.3 33 35.2 38.2 43.3 48.7 52.1 51.8 48.6 44 37.4 34.7
Max °F 38.3 38.5 41.9 46 51.8 57.6 61 60.4 56.5 50.7 43.2 39.9

Sea temperature

The graph below shows the average sea temperature.

Swindon average sea temperature chart (Celsius) Swindon average sea temperature chart (Fahrenheit)
Average sea temperature around Swindon in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 9.6 8.7 8.7 9.5 11.1 13.2 15.3 16.6 16.5 15.3 13.4 11.3
°F 49.4 47.6 47.6 49.2 52.1 55.8 59.6 61.9 61.7 59.5 56.1 52.4

Wind speed

The graph below shows the average wind speed.

Swindon average winspeed by month (km/h) Swindon average winspeed by month (mph)
Average wind speed in Swindon (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 18 18 18 17 16 14 14 14 14 15 16 17
mph 11 11 11 11 10 9 9 9 9 9 10 11

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.

Swindon relative humidity averages
Average relative humidity in Swindon
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
91% 88% 83% 80% 78% 77% 77% 79% 83% 87% 90% 92%

Other monthly averages

UV index Best time to go?

Swindon weather stats

Swindon weather statistics
Hottest month: July 20.8°C 69.4°F
Driest month: July 46mm 1.8ins
Sunniest month: August 6.3hrs
Coldest month: January 6.2°C 43.2°F
Wettest month: December 72mm 2.8ins
Warmest sea: August 16.6°C 61.9°F
Map showing location of Swindon (51.55797, -1.78116) Swindon map pin © Google

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