Colwyn Bay monthly weather averages

Average daytime temperature

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

Colwyn Bay average temperature chart (Celsius) Colwyn Bay average temperature chart (Fahrenheit)
Average monthly temperatures in Colwyn Bay (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.6 6.4 8.2 10.5 13.8 16.4 18.1 18 16 13.3 9.3 7.6
°F 43.9 43.6 46.8 51 56.9 61.6 64.5 64.4 60.9 55.9 48.8 45.7

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.

Colwyn Bay monthly rainfall chart (mm) Colwyn Bay monthly rainfall chart (inches)
Average monthly rainfall in Colwyn Bay (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 126 88 97 69 73 69 63 87 105 127 141 140
inches 5 3.5 3.8 2.7 2.9 2.7 2.5 3.4 4.1 5 5.5 5.5
Rainy days 21 16 18 15 16 15 14 16 17 19 20 20

Average annual rainfall in Colwyn Bay: 1233.7mm (485.7 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Colwyn Bay

Colwyn Bay average daily sunshine chart
Average daily sunshine Colwyn Bay
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 1.7 2.8 3.7 5.4 6.8 6.7 6.1 5.8 4.6 3.4 2.1 1.4

Day / night temperatures

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

Colwyn Bay average minimum / maximum temperatures (Celsius) Colwyn Bay average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Colwyn Bay (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 1.7 1.3 2.5 3.9 6.4 9.2 11.2 11.3 9.6 7.4 4.2 2.7
Max °C 6.8 6.6 8.4 10.7 14 16.6 18.3 18.2 16.2 13.5 9.5 7.8
Min °F 35 34.3 36.4 39 43.5 48.6 52.1 52.3 49.3 45.2 39.5 36.8
Max °F 39.6 39 41.7 45.1 50.4 55.2 58.5 58.5 55.2 50.7 44.2 41.4

Sea temperature

The graph below shows the average sea temperature.

Colwyn Bay average sea temperature chart (Celsius) Colwyn Bay average sea temperature chart (Fahrenheit)
Average sea temperature around Colwyn Bay in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 8.5 7.4 7.3 8.1 10.1 12.4 14.3 15.1 14.7 13.5 12 10.2
°F 47.3 45.3 45.1 46.6 50.1 54.3 57.7 59.2 58.4 56.4 53.6 50.4

Wind speed

The graph below shows the average wind speed.

Colwyn Bay average winspeed by month (km/h) Colwyn Bay average winspeed by month (mph)
Average wind speed in Colwyn Bay (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 21 19 20 18 17 16 16 16 18 19 21 21
mph 13 12 13 11 11 10 10 10 11 12 13 13

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.

Colwyn Bay relative humidity averages
Average relative humidity in Colwyn Bay
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
89% 87% 85% 83% 81% 83% 84% 85% 86% 87% 89% 90%

Other monthly averages

UV index Best time to go?

Colwyn Bay weather stats

Colwyn Bay weather statistics
Hottest month: July 18.1°C 64.6°F
Driest month: July 63mm 2.5ins
Sunniest month: May 6.8hrs
Coldest month: February 6.4°C 43.5°F
Wettest month: November 141mm 5.6ins
Warmest sea: August 15.1°C 59.2°F
Map showing location of Colwyn Bay (53.29483, -3.72674) Colwyn Bay map pin © Google

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