The weather in Monte Carlo in August is hot. The average temperatures are between 21°C and 28°C.
You can expect a few rainy days in Monte Carlo during August, but usually the weather is comfortable in August.
Our weather forecast can give you a great sense of what weather to expect in Monte Carlo in August 2025.
If you’re planning to visit Monte Carlo in the near future, we highly recommend that you review the 14 day weather forecast for Monte Carlo before you arrive.
Temperatures
28° / 21°
Rainy Days
2
Snowy Days
0
Dry Days
29
Rainfall
31
mm
Sun Hours
11.8
Hrs
