Sydney vs Cancun

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Sydney edges ahead as the better destination in September. Sydney offers 11 hours of daily sunshine with only 6 rain days, while Cancun sees 10 sunshine hours and 24 rain days.

Sydney sits in the comfortable travel range at 19°C. Cancun runs hot at 29°C.

For travelers who prioritize dry weather, Sydney is the stronger choice in September. Sydney receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.

Sydney reaches an average high of 19°C (66°F) and drops to 11°C (52°F) at night during September. The daily temperature range is 8°C, meaning moderate variation throughout the day.

Cancun averages 29°C (84°F) for the high and 26°C (79°F) for the low, with a daily range of 3°C. There is a notable 10°C gap between the two cities, so expect a very different feel.

Sydney is in the Southern Hemisphere while Cancun is in the Northern Hemisphere. This means they experience opposite seasons, which explains any large temperature difference.

Sydney receives approximately 41 mm of rainfall across 6 rain days during September. Rain is occasional, so a light rain jacket should suffice.

Cancun sees 205 mm over 24 rain days. That makes Sydney the drier option by 18 rain days and 164 mm of total precipitation.

Humidity also differs: Sydney averages 70% while Cancun sits at 78%. Cancun will feel muggier, especially at higher temperatures.