Average humidity in Sydney
- On average, May is the most humid.
- On average, October is the least humid month.
- The average annual percentage of humidity is: 70.0%
More climate information
Weather and Climate offers all the information you need to know about the climate in Sydney.
We collected past weather data from many thousand weather stations around the world. So find on this website the historical weather averages in other cities in Australia and climate and forecast data for all other countries in the world.