Average Humidity for the United Kingdom in September

The average humidity levels in September are listed below for cities and towns throughout the United Kingdom. The tables give the month's daily averages for the highest and lowest relative humidity levels.

Relative humidity measures the actual amount of moisture in the air as a percentage of the maximum amount of moisture the air can hold.

All the numbers here are based on weather data collected from 1961 to 1990.

You can jump to a separate table for each country: England, Wales, Scotland and Northern Ireland.


Average September humidity
Place High Low
Birmingham 92 67
Bournemouth 96 69
London 96 67
Manchester 89 68
Plymouth 91 75
Ramsgate 91 70


September relative humidity averages
Place High Low
Aberporth 90 77
Cardiff 92 73
Valley, Anglesey 90 75


Average daily humidity in September
Place High Low
Aberdeen 91 70
Edinburgh 91 70
Forres 89 69
Lerwick, Shetland Islands 90 85
Stornoway, Outer Hebrides 91 81
Tiree, Inner Hebrides 90 81

Northern Ireland

September relative humidity
Place High Low
Belfast 92 74

World Data Center for Meteorology. Climate of the World.

United Kingdom Humidity
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