The warmest months are June, July, and August, with mean temperatures of 16.7 to 17.9 °C 62.1 to 64.2 °F. The coldest are December, January, and February, with mean temperatures of ��0.4 to 1.2 °C 31.3 to 34.2 °F. Berlins built-up area creates a microclimate, with heat stored by the citys buildings.

The Straßenbahn or tram trolley system operates almost exclusively in the eastern part of the city.