Those visiting Bucharest for the first time should know it has a humid continental climate, with windy winters and hot and dry and stormy summers. The weather fluctuates significantly throughout the seasons, reaching below freezing temperatures in winter and blazing hot days in the summer. Rainfall is heavy in late spring and early summer, while around five inches of snow is not unusual during winter. The temperature breakdowns are as follows:
Spring: March–May: Starting out chilly in even in march (average daily temperature of 5-6 degrees Celsius, the weather warms up steadily to reach average highs of 24 degrees Celsius. Outdoors family fun time and this is definitely the high season.
Summer: June–August: The heat continues to intensify until mid-July, and remains steady at an average of 30 degrees Celsius for most of August. It’s not unusual to see the mercury hit 40 degrees Celsius a few times. The nights are pleasantly cool, though.
Autumn: September–November: Temperatures taper off rapidly through autumn. November average daytime temperatures hover around 10 degrees Celsius, and nights become downright chilly starting in October at 5 degrees Celsius.
Winter: December–February: Winters are freezing. Daytime temperatures are usually less than 5 degrees Celsius, falling to -5 on January nights. Record lows of -30 degrees Celsius have happened. This is pure off-season.
Like the rest of Romania, April and May are the best times to visit, when spring is in full bloom. Middle to late autumn may also be the best season to visit turns the landscape into painting-worthy shades.