Sydney is in the Southern Hemisphere, so the seasons run opposite to North America and Europe.
Summer Dec – Feb
Peak warmth: highs of 75–78°F (24–25°C). It's the wettest season, with about 11.4 in (289 mm) of rain, 33% of the year's total. January & February feel humid, with humidity near 75%. It holds the toughest stretch on our comfort score (February), averaging 79/100.
Autumn Mar – May
Temperatures slide from 75°F highs in March to 67°F by May. About 9.1 in (231 mm) of rain falls across these months, 26% of the year's total. March feels humid, with humidity near 75%. April & May are among the best-scoring months (season average 85/100).
Winter Jun – Aug
The cold peaks here: highs of 61–63°F (16–17°C), and nights reach 52°F (11°C). It's the driest season, with only about 7.0 in (178 mm) of rain, 20% of the year's total. Comfort peaks here: July & August rank with the year's best, and the season averages 87/100.
Spring Sep – Nov
Temperatures climb through the season, from 67°F highs in September to 73°F by November. About 7.5 in (190 mm) of rain falls across these months, 21% of the year's total. Lows bottom out around 56°F (13°C). September & October are among the best-scoring months (season average 88/100).