Plymouth monthly weather averages

Average daytime temperature

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

Plymouth average temperature chart (Celsius) Plymouth average temperature chart (Fahrenheit)
Average monthly temperatures in Plymouth (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 26.8 26.7 27.3 28.1 28.7 29.1 29.5 29.6 29.6 29.2 28.4 27.3
°F 80.2 80.1 81.1 82.5 83.7 84.4 85.1 85.3 85.3 84.6 83.1 81.1

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.

Plymouth monthly rainfall chart (mm) Plymouth monthly rainfall chart (inches)
Average monthly rainfall in Plymouth (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 106 65 72 92 138 133 166 181 203 167 162 120
inches 4.2 2.5 2.8 3.6 5.4 5.2 6.5 7.1 8 6.6 6.4 4.7
Rainy days 18 14 15 14 17 16 19 20 18 21 20 20

Average daily sunshine

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

Plymouth average daily sunshine chart
Average daily sunshine Plymouth
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 8.1 8.1 8.5 8.6 8.2 8.3 8.5 8.5 7.9 7.7 7.6 7.5

Day / night temperatures

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

Plymouth average minimum / maximum temperatures (Celsius) Plymouth average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Plymouth (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 20.1 19.9 20.4 21 22.4 23.4 23.2 23.3 23 22.6 21.9 20.8
Max °C 27 26.9 27.5 28.3 28.9 29.3 29.7 29.8 29.8 29.4 28.6 27.5
Min °F 68.1 67.8 68.6 69.7 72.2 74 73.7 73.9 73.4 72.7 71.3 69.4
Max °F 74.3 74.1 75 76.3 78.1 79.3 79.5 79.7 79.5 78.8 77.4 75.4

Sea temperature

The graph below shows the average sea temperature.

Plymouth average sea temperature chart (Celsius) Plymouth average sea temperature chart (Fahrenheit)
Average sea temperature around Plymouth in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 26.8 26.4 26.4 27 27.7 28.1 28.3 28.6 29 28.9 28.3 27.5
°F 80.2 79.5 79.5 80.6 81.8 82.6 82.9 83.6 84.1 83.9 83 81.5

Wind speed

The graph below shows the average wind speed.

Plymouth average winspeed by month (km/h) Plymouth average winspeed by month (mph)
Average wind speed in Plymouth (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 20 21 21 20 19 22 23 21 18 16 18 19
mph 13 13 13 12 12 14 14 13 11 10 11 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.

Plymouth relative humidity averages
Average relative humidity in Plymouth
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
77% 77% 76% 76% 78% 78% 80% 79% 80% 81% 81% 79%

Other monthly averages

UV index Best time to go?

Plymouth weather stats

Plymouth weather statistics
Hottest month: August 29.6°C 85.3°F
Driest month: February 65mm 2.6ins
Sunniest month: January 8.1hrs
Coldest month: February 26.7°C 80.1°F
Wettest month: September 203mm 8ins
Warmest sea: September 29°C 84.2°F
Map showing location of Plymouth (16.70555, -62.21292)

Locations nearby

Change units