Aside from the depths of winter, the climate in the Black Forest is relatively mild. Wintertime temperature average in the mid to upper 30s. Average high temperatures in the winter are in the upper 30s, while average lows are in the mid to upper 20s. Summertime temperatures average in the upper 60s to low 70s. Average summer highs are in the mid to upper 70s. Average summer lows range in the mid 50s. Precipitation falls pretty evenly throughout the year, although there is a greater chance of rainy days in the summertime than in any other time of the year.

Your best bet when planning a trip to the Black Forest region of Germany may be to travel in the late spring and early autumn. Not only is the weather likely to be more pleasant during this time period, but it will also help you avoid the tourist onslaught of the backpacker summer season.