Weather will likely play an important role when you plan your trip to Dubrovnik, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually August and July, with an average temperature of 24°C, while the coldest months are January and February, with an average of 10°C. The rainiest months in Dubrovnik are November, December, October and January, with each month seeing an average of 202 mm of rainfall.