Weather Comparison
Side-by-side weather comparison for August
| Metric | Cancun | Sydney | Better |
|---|---|---|---|
| Average HighHigher is warmer | 30°C (86°F)▲ | 17°C (63°F) | Cancun |
| Average LowHigher is milder | 26°C (79°F)▲ | 9°C (48°F) | Cancun |
| Rain DaysFewer is drier | 21 days | 5 days▲ | Sydney |
| PrecipitationLess is drier | 146 mm | 37 mm▲ | Sydney |
| Sunshine HoursMore is sunnier | 11h/day▲ | 9h/day | Cancun |
| HumidityLower is more comfortable | 78% | 70%▲ | Sydney |
| UV IndexLower is safer | 9 | 2▲ | Sydney |
| Wind SpeedCalmer is better | 16 km/h▲ | 17 km/h | Cancun |
Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Sydney edges ahead as the better destination in August. Sydney offers 9 hours of daily sunshine with only 5 rain days, while Cancun sees 11 sunshine hours and 21 rain days.
Cancun can feel quite hot at 30°C, so plan for heat. Sydney is also comfortable at 17°C.
For travelers who prioritize dry weather, Sydney is the stronger choice in August. Cancun receives 2 more hours of sunshine per day, which matters for sightseeing and outdoor activities.
Cancun reaches an average high of 30°C (86°F) and drops to 26°C (79°F) at night during August. The daily temperature range is 4°C, meaning relatively stable temperatures from day to night.
Sydney averages 17°C (63°F) for the high and 9°C (48°F) for the low, with a daily range of 8°C. There is a notable 13°C gap between the two cities, so expect a very different feel.
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 146 mm of rainfall across 21 rain days during August. Rain is frequent, so waterproof gear is essential.
Sydney sees 37 mm over 5 rain days. That makes Sydney the drier option by 16 rain days and 109 mm of total precipitation.
Humidity also differs: Cancun averages 78% while Sydney sits at 70%. Cancun will feel muggier, especially at higher temperatures.
Highs of 30°C, lows of 26°C, 21 rain days
Highs of 17°C, lows of 9°C, 5 rain days
The table below shows average high temperatures and rain days for every month. August is highlighted for quick reference.
| Month | Cancun | Sydney | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 25°C | 11d | 26°C | 9d |
| Feb | 26°C | 8d | 25°C | 10d |
| Mar | 27°C | 7d | 24°C | 10d |
| Apr | 28°C | 7d | 21°C | 8d |
| May | 29°C | 14d | 19°C | 7d |
| Jun | 29°C | 19d | 16°C | 8d |
| Jul | 30°C | 18d | 16°C | 6d |
| Aug | 30°C | 21d | 17°C | 5d |
| Sep | 29°C | 24d | 19°C | 6d |
| Oct | 28°C | 21d | 21°C | 8d |
| Nov | 27°C | 12d | 23°C | 9d |
| Dec | 26°C | 11d | 24°C | 9d |
Cancun Weather in August
Full forecast, packing tips, and activities
Sydney Weather in August
Full forecast, packing tips, and activities