Info and stats on Relative Humidity

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Relative humidity (RH) is the ratio of the partial pressure of water vapor to the equilibrium vapor pressure of water at a given temperature. Relative humidity depends on temperature and the pressure of the system of interest. It requires less water vapor to attain high relative humidity at low temperatures; more water vapor is required to attain high relative humidity in warm or hot air.

[GiCa]

Average year relative humidity

Highest in Europe

Manchester, uk, 88%
Amsterdam, nl, 83%
Rotterdam, nl, 83%
The Hague, nl, 83%
Tallin, est, 81%
Bremen, de, 80%
Bruxelles, blg, 80%
Piacenza, it, 80%
Braga, pt, 80%
Istanbul, tr, 80%

Lowest in Europe

Madrid, es, 57%
Granada, es, 57%
Murcia, es, 58%
Seville, es, 59%