Ystrad Mynach monthly weather averages

Average daytime temperature

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

Ystrad Mynach average temperature chart (Celsius) Ystrad Mynach average temperature chart (Fahrenheit)
Average monthly temperatures in Ystrad Mynach (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.5 6.4 8.7 11.5 14.8 17.8 19.6 19.4 17.1 13.6 9.5 7.5
°F 43.8 43.6 47.7 52.6 58.6 64 67.3 66.8 62.7 56.6 49.1 45.5

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.

Ystrad Mynach monthly rainfall chart (mm) Ystrad Mynach monthly rainfall chart (inches)
Average monthly rainfall in Ystrad Mynach (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 142 101 105 77 81 77 75 97 115 131 133 148
inches 5.6 4 4.1 3 3.2 3 3 3.8 4.5 5.2 5.2 5.8
Rainy days 20 15 18 15 16 15 13 15 16 18 19 20

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Ystrad Mynach

Ystrad Mynach average daily sunshine chart
Average daily sunshine Ystrad Mynach
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 1.8 2.7 3.8 5.5 6.5 7.1 6.5 6.3 4.9 3.3 2.6 1.7

Day / night temperatures

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

Ystrad Mynach average minimum / maximum temperatures (Celsius) Ystrad Mynach average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Ystrad Mynach (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 1.6 1.1 2.3 3.8 6.7 9.6 11.4 11.5 9.8 7.4 4 2.4
Max °C 6.7 6.6 8.9 11.7 15 18 19.8 19.6 17.3 13.8 9.7 7.7
Min °F 34.8 33.9 36.1 38.8 44 49.3 52.5 52.6 49.6 45.3 39.1 36.2
Max °F 39.4 38.8 42.1 45.9 51.4 56.8 60.1 59.9 56.3 51.1 44.2 41

Sea temperature

The graph below shows the average sea temperature.

Ystrad Mynach average sea temperature chart (Celsius) Ystrad Mynach average sea temperature chart (Fahrenheit)
Average sea temperature around Ystrad Mynach 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.

Ystrad Mynach average winspeed by month (km/h) Ystrad Mynach average winspeed by month (mph)
Average wind speed in Ystrad Mynach (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 17 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.

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

Other monthly averages

UV index Best time to go?

Ystrad Mynach weather stats

Ystrad Mynach weather statistics
Hottest month: July 19.6°C 67.3°F
Driest month: July 75mm 3ins
Sunniest month: August 6.3hrs
Coldest month: February 6.4°C 43.5°F
Wettest month: December 148mm 5.8ins
Warmest sea: August 16.2°C 61.2°F
Map showing location of Ystrad Mynach (51.64276, -3.2362)

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