Cancun vs Sydney

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Sydney edges ahead as the better destination in December. Sydney offers 11 hours of daily sunshine with only 9 rain days, while Cancun sees 10 sunshine hours and 11 rain days.

Cancun sits in the comfortable travel range at 26°C. Sydney is also comfortable at 24°C.

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

Cancun reaches an average high of 26°C (79°F) and drops to 23°C (73°F) at night during December. The daily temperature range is 3°C, meaning relatively stable temperatures from day to night.

Sydney averages 24°C (75°F) for the high and 18°C (64°F) for the low, with a daily range of 6°C. The 2°C difference is noticeable but not dramatic.

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

Cancun receives approximately 53 mm of rainfall across 11 rain days during December. You can expect rain roughly every other day.

Sydney sees 55 mm over 9 rain days. That makes Sydney the drier option by 2 rain days and 2 mm of total precipitation.

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