Monmouth monthly weather averages

Average daytime temperature

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

Monmouth average temperature chart (Celsius) Monmouth average temperature chart (Fahrenheit)
Average monthly temperatures in Monmouth (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.5 6.7 9.1 12 15.4 18.6 20.5 20 17.5 13.8 9.5 7.3
°F 43.7 44 48.3 53.6 59.8 65.5 68.9 68 63.4 56.9 49.1 45.2

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.

Monmouth monthly rainfall chart (mm) Monmouth monthly rainfall chart (inches)
Average monthly rainfall in Monmouth (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 96 71 72 58 65 58 48 68 78 82 85 98
inches 3.8 2.8 2.8 2.3 2.6 2.3 1.9 2.7 3.1 3.2 3.3 3.9
Rainy days 19 14 17 15 16 13 11 13 14 17 18 18

Average annual rainfall in Monmouth: 929.6mm (366 inches)

Average daily sunshine

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

Monmouth average daily sunshine chart
Average daily sunshine Monmouth
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 1.8 2.6 3.8 5.2 6.3 7.1 6.4 6.1 4.9 3.3 2.5 1.8

Day / night temperatures

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

Monmouth average minimum / maximum temperatures (Celsius) Monmouth average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Monmouth (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 1.2 1 2.2 3.8 6.6 9.6 11.3 11.2 9.4 7 3.6 2
Max °C 6.7 6.8 9.3 12.2 15.7 18.9 20.7 20.2 17.7 14 9.7 7.5
Min °F 34.1 33.8 35.9 38.8 43.8 49.2 52.3 52.2 48.8 44.6 38.4 35.5
Max °F 39 39 42.3 46.4 52 57.6 60.8 60.3 56.3 50.9 43.9 40.5

Sea temperature

The graph below shows the average sea temperature.

Monmouth average sea temperature chart (Celsius) Monmouth average sea temperature chart (Fahrenheit)
Average sea temperature around Monmouth in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 10.1 9.3 9.2 10 11.3 13.1 15 16.2 16.2 15.1 13.4 11.7
°F 50.2 48.7 48.6 49.9 52.3 55.5 59 61.2 61.2 59.2 56.2 53

Wind speed

The graph below shows the average wind speed.

Monmouth average winspeed by month (km/h) Monmouth average winspeed by month (mph)
Average wind speed in Monmouth (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 17 17 18 17 16 15 14 14 15 15 17 18
mph 11 11 11 10 10 9 9 9 9 9 10 11

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.

Monmouth relative humidity averages
Average relative humidity in Monmouth
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
91% 88% 84% 82% 81% 82% 81% 82% 87% 89% 90% 92%

Other monthly averages

UV index Best time to go?

Monmouth weather stats

Monmouth weather statistics
Hottest month: July 20.5°C 68.9°F
Driest month: July 48mm 1.9ins
Sunniest month: June 7.1hrs
Coldest month: January 6.5°C 43.7°F
Wettest month: December 98mm 3.9ins
Warmest sea: August 16.2°C 61.2°F
Map showing location of Monmouth (51.81265, -2.71363) Monmouth map pin © Google

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