National Environment Agency (NEA) publishes annual mean relative humidity statistics recorded at the Changi Climate Station in Singapore. The CSV dataset summarises daily mean, maximum, and minimum relative humidity averages across the long annual series from 1982 through 2022. Climate researchers, building engineers, and educators studying tropical moisture regimes can analyse trends in national reference humidity. Use this NEA collection for open climate data on Singapore relative humidity annual means.
The annual average values for the daily mean relative humidity, daily maximum relative humidity and daily minimum relative humidity recorded at the Changi Climate Station.
National Environment Agency CSV of annual mean relative humidity at Singapore’s Changi Climate Station from 1982 through 2025. Columns cover year plus annual means of daily mean, daily minimum and daily maximum relative humidity in percent. Climate researchers and building-design analysts track long-run humidity conditions for comfort, mould risk and energy studies.