Llantwit Major monthly weather averages

Contents

Average daytime temperature

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

Llantwit Major average temperature chart (Celsius) Llantwit Major average temperature chart (Fahrenheit)
Average monthly temperatures in Llantwit Major (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 7.2 7.1 9.3 12 15.1 18 19.9 19.7 17.5 14.3 10.3 8.2
°F 45 44.7 48.7 53.5 59.2 64.4 67.8 67.5 63.5 57.8 50.5 46.8

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.

Llantwit Major monthly rainfall chart (mm) Llantwit Major monthly rainfall chart (inches)
Average monthly rainfall in Llantwit Major (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 102 71 77 59 63 64 69 84 92 103 109 109
inches 4 2.8 3 2.3 2.5 2.5 2.7 3.3 3.6 4.1 4.3 4.3
Rainy days 21 15 18 15 15 14 13 15 16 18 19 20

Average annual rainfall in Llantwit Major: 1049.5mm (413.2 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Llantwit Major

Llantwit Major average daily sunshine chart
Average daily sunshine Llantwit Major
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 1.9 2.8 4 5.8 6.8 7.2 6.7 6.4 5.1 3.4 2.7 1.8

Day / night temperatures

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

Llantwit Major average minimum / maximum temperatures (Celsius) Llantwit Major average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Llantwit Major (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 2.3 1.8 3 4.5 7.3 10.2 12.1 12.1 10.4 8.1 4.6 3.1
Max °C 7.4 7.2 9.5 12.2 15.3 18.2 20.1 19.9 17.7 14.5 10.4 8.4
Min °F 36.1 35.2 37.3 40 45.1 50.4 53.8 53.8 50.6 46.6 40.3 37.5
Max °F 40.6 40.1 43.2 46.9 52.3 57.6 61 60.8 57.2 52.3 45.5 42.3

Sea temperature

The graph below shows the average sea temperature.

Llantwit Major average sea temperature chart (Celsius) Llantwit Major average sea temperature chart (Fahrenheit)
Average sea temperature around Llantwit Major in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 10.2 9.3 9.2 9.9 11.2 13.1 15.1 16.2 16.1 14.9 13.3 11.6
°F 50.3 48.8 48.6 49.8 52.2 55.6 59.1 61.2 60.9 58.8 55.9 52.9

Wind speed

The graph below shows the average wind speed.

Llantwit Major average winspeed by month (km/h) Llantwit Major average winspeed by month (mph)
Average wind speed in Llantwit Major (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 20 19 19 18 17 16 15 16 16 17 19 20
mph 12 12 12 11 10 10 9 10 10 11 12 12

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.

Llantwit Major relative humidity averages
Average relative humidity in Llantwit Major
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
91% 89% 86% 83% 83% 83% 84% 84% 87% 89% 90% 92%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Llantwit Major weather stats

Llantwit Major weather statistics
Hottest month: July 19.9°C 67.8°F
Driest month: April 59mm 2.3ins
Sunniest month: August 6.4hrs
Coldest month: February 7.1°C 44.8°F
Wettest month: November 109mm 4.3ins
Warmest sea: August 16.2°C 61.2°F
Map showing location of Llantwit Major (51.4107, -3.48632) Llantwit Major map pin © Google

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