Port Glasgow monthly weather averages

Average daytime temperature

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

Port Glasgow average temperature chart (Celsius) Port Glasgow average temperature chart (Fahrenheit)
Average monthly temperatures in Port Glasgow (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 4.8 4.9 6.8 9.7 13 15.8 16.9 16.6 14.1 11.2 7.3 5.7
°F 40.7 40.8 44.2 49.4 55.4 60.4 62.5 61.9 57.3 52.2 45.2 42.3

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.

Port Glasgow monthly rainfall chart (mm) Port Glasgow monthly rainfall chart (inches)
Average monthly rainfall in Port Glasgow (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 227 152 181 107 119 114 129 166 219 232 215 220
inches 8.9 6 7.1 4.2 4.7 4.5 5.1 6.5 8.6 9.1 8.4 8.7
Rainy days 22 17 21 17 18 17 18 19 21 22 21 22

Average annual rainfall in Port Glasgow: 2131.667mm (839.2 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Port Glasgow

Port Glasgow average daily sunshine chart
Average daily sunshine Port Glasgow
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 1.3 2.5 3.2 5.3 6.2 6.3 5.6 5 3.8 2.7 1.9 1.2

Day / night temperatures

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

Port Glasgow average minimum / maximum temperatures (Celsius) Port Glasgow average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Port Glasgow (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 0.5 0.2 1.3 2.8 5.4 8.3 9.9 9.9 8.2 6.3 2.6 1.4
Max °C 5 5 6.9 9.9 13.2 16 17.1 16.8 14.2 11.4 7.5 5.9
Min °F 32.8 32.4 34.3 37 41.7 46.9 49.8 49.7 46.8 43.3 36.6 34.4
Max °F 36.9 36.7 39.4 43.3 48.7 53.8 56.3 55.9 52.2 47.8 41 38.5

Sea temperature

The graph below shows the average sea temperature.

Port Glasgow average sea temperature chart (Celsius) Port Glasgow average sea temperature chart (Fahrenheit)
Average sea temperature around Port Glasgow in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 8.1 6.9 6.8 7.8 9.8 12 13.8 14.7 14.5 13.6 11.9 9.9
°F 46.5 44.4 44.2 46.1 49.6 53.6 56.9 58.4 58.1 56.4 53.4 49.8

Wind speed

The graph below shows the average wind speed.

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

Port Glasgow relative humidity averages
Average relative humidity in Port Glasgow
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
92% 88% 85% 81% 79% 81% 83% 84% 87% 89% 90% 91%

Other monthly averages

UV index Best time to go?

Port Glasgow weather stats

Port Glasgow weather statistics
Hottest month: July 16.9°C 62.4°F
Driest month: April 107mm 4.2ins
Sunniest month: May 6.2hrs
Coldest month: February 4.9°C 40.8°F
Wettest month: October 232mm 9.1ins
Warmest sea: August 14.7°C 58.5°F
Map showing location of Port Glasgow (55.93464, -4.6895) Port Glasgow map pin © Google

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