Generally, Frankfurt is located in one of the warmer areas of Germany. Just like in any other part of Germany,  the temperatures are very much influenced by a constant airflow from the Atlantic Ocean. This means that temperatures almost never get unbearable.

Average temperatures vary between 3 C / 37 F day; -2 C / 28 F night in January and 25 C / 77 F day; 15 C / 59 F night in July. There is always a certain likelihood of rain - on average it rains between 8 days per month in March and 11 days per month in August. Still, the likelihood of sunshine is highest in the summer months (7-8 hours per day between June and August).

There is no specific time when Frankfurt should be avoided because of the weather. Generally speaking, Frankfurt, like all of Germany is most pleasant between late spring and early autumn, because it will be greener and temperatures will be most favourable. People who do visit Frankfurt in the winter will nearly never find snow (but almost certainly rain...), but there is still a Christmas market in the month of December which might be worth a visit.

There are lots of events in Frankfurt throughout the year, but the some popular ones should be

  • Museumsuferfest (usually last weekend in August; due to World Cup 2006: July 7 to July 9)
  • Nacht der Museen (end of April)
  • Buchmesse (International Book Fair; in October; 2006: October 4 to October 8)
  • (...)

The Frankfurt board of tourism offers an English language event calendar for further planning via its website:

http://www.frankfurt-tourismus.de/

Frankfurt Weather - 5 Day Forecast