The average annual water vapor pressure value for Pietermaritzburg KwaZulu-Natal over the past 30 years is 18.19 kPa (kilopascals).
In city of Pietermaritzburg KwaZulu-Natal, the water vapor pressure in January is 2.04 kPa; The water vapor pressure in February is 2.07 kPa; The water vapor pressure in March is 1.95 kPa; The water vapor pressure in April is 1.6 kPa; The water vapor pressure in May is 1.22 kPa; The water vapor pressure in June is 0.95 kPa; The water vapor pressure in July is 0.89 kPa; The water vapor pressure in August is 1.04 kPa; The water vapor pressure in September is 1.28 kPa; The water vapor pressure in October is 1.53 kPa; The water vapor pressure in November is 1.72 kPa; The water vapor pressure in December is 1.9 kPa.
The vapour pressure of water is the pressure exerted by molecules of water vapor in gaseous form (whether pure or in a mixture with other gases such as air). The saturation vapour pressure is the pressure at which water vapour is in thermodynamic equilibrium with its condensed state.
Address: Pietermaritzburg, KwaZulu-Natal, South Africa.
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