See

Climate

A temperate climate, particularly mild and sunny for more than 300 days a year, makes Monaco a welcoming place.
Month Maximum Temperature* Minimum Temperature* Days of rain ** Hours of sunshine
January 12.25 8.08 5.9 149.8
February 12.52 8.16 5.2 158.9
March 13.97 9.60 6.7 185.5
April 16.13 11.62 6.0 210.0
May 19.36 14.83 5.6 248.1
June 22.98 18.49 2.8 281.1
July 25.78 21.18 1.3 329.3
August 25.93 21.51 2.5 296.7
September 23.81 19.28 4.5 224.7
October 19.90 15.57 7.5 199.0
November 16.09 11.91 7.7 155.2
December 13.41 9.25 6.8 136.5
         
Total     62.5 2574.7 ***

* Average temperatures recorded between 1911 and 1985 
** Average monthly rainfall from 1911 to 1985 
*** 17.15 hours in Paris