Sydney edges it in September. Sydney averages 12–22°C with moderate crowds; Cape Town 9–20°C with moderate crowds.
By Daan · Last reviewed October 2026
Sydney and Cape Town
The verdict for September
Spring arrives with longer days
+Spring arrives with longer days and improving outdoor conditions.
–Weather can change quickly during the seasonal transition.
Spring arrives with longer days and improving outdoor conditions.
Spring landscapes return
+Spring scenery and fewer summer crowds.
–Variable weather and uncertain flower displays.
September brings the beginning of spring, with gradually milder weather and the possibility of wildflowers in suitable areas of the Western Cape. Rain and wind remain possible, while whale sightings may be rewarding along parts of the coast.
Scores and crowd levels are my own judgement; temperatures are monthly averages. Higher scores are better: quieter, cheaper and more pleasant.
Another month