Frankfurt climate: weather by month, temperature, rain (2024)

In Frankfurt am Main, the largest city of the state of Hesse, and in the neighbouring cities of Wiesbaden and Mainz, the climate is slightly continental, with cold (but not freezing) winters and pleasantly warm summers. The city is located in southwestern Germany, at 50 degrees north latitude, in the upper Rhine valley, an area that is the warmest in Germany from May to September.
The daily average temperature ranges from 2.2 °C (36 °F) in January to 20.6 °C (69 °F) in July. Here are the average temperatures.

Precipitation is not abundant, about 600 millimeters (23.5 inches) per year, but it is quite common and well distributed throughout the year. However, the driest period goes from February to April. Rainfall often occurs in the form of short showers or drizzle, whereas during the summer, thunderstorms can break out in the afternoon. Here is the average precipitation.

Winter, from December to February, is cold: daytime temperatures are on average a few degrees above freezing (0 °C or 32 °F), while at night, they are around freezing.
However, different weather situations can occur.
When the westerlies blow, the temperature can be quite mild, and can reach 10/12 °C (50/54 °F), but there can be wind and rain.
Under the influence of a high pressure system, the weather is cold, the sky is gray, and fog can form.
On the other hand, when the city is reached by cold air masses from Russia, the temperature drops below freezing, for longer or shorter periods, even during the day. The temperature rarely drops below -15 °C (5 °F), however, it can do it in very cold periods, which used to be more frequent in the past. The coldest record is -27 °C (-16.6 °F) and was set in January 1940.
Snowfalls in Frankfurt are quite frequent, though usually not abundant, and occur in the form of light snow. Sometimes, however, snow can accumulate on the ground, and last for many days, if it occurs during cold waves.

Spring, from March to May, is an unstable season.
On the one hand, northwesterly currents can bring cold periods, so much so that in March, and sometimes until mid-April, it can still snow. In addition, some cold days, with highs around 10 °C (50 °F), can still occur in May, especially in the first half of the month.
On the other hand, southwesterly currents can bring very mild or quite warm periods, with highs above 20 °C (68 °F) in April and above 25 °C (77 °F) in May.

Summer, from June to August, is warm enough. Atlantic disturbances can affect this area even in this season, bringing cool and rainy days, but there may also be some hot and sunny days, with the temperature reaching 28/30 °C (82/86 °F), however, with some risk of afternoon thunderstorms.
More rarely, there may be very hot periods, usually of short duration, which are becoming more frequent due to global warming. The highest record is 40 °C (104 °F) and was set in July 2019. In August 2020, the maximum temperature fluctuated between 31 and 37 °C (88 and 99 °F) for seven consecutive days. In August 2022, the average maximum was 29.9 °C (85.8 °F).

Autumn, from September to November, is initially pleasant in September, and sometimes also in early October (although there is no shortage of rainfall), then it gradually becomes more cold, dull, wet and windy. The first night frosts usually occur in November, but sometimes also in October. During calm nights, fog may form.

Frankfurt does not get a lot of sun, especially from October to February, when the sun rarely shines. It goes a bit better from May to August, when the weather is variable, and between one disturbance and another, the sun can come out. In Frankfurt, there are on average 1,720 hours of sunshine per year. Here are the average sunshine hours per day.

Best Time

The best time to visit Frankfurt runs from mid-May to mid-September, since it's the mildest of the year. July and August are the warmest months. However, it's better to bring a sweatshirt or sweater, a light jacket and an umbrella, for cool and rainy days.

Frankfurt - Weather by month

Based on the period 1991-2020

January, the coldest month of the year, is generally a cold month. The average temperature is of 2.2 °C (36 °F), with a minimum of -0.4 °C (31.3 °F) and a maximum of 4.9 °C (40.8 °F).
On the coldest nights of the month, the temperature usually drops to around -9 °C (15.5 °F). However, it dropped to -16.8 °C (1.8 °F) in January 1997.
On the warmest days of the month, the temperature usually reaches around 12 °C (54 °F). However, it reached 15.9 °C (60.6 °F) in January 2015.
Precipitation amounts to 45 mm (1.8 in), distributed over 10 days.
The day lasts on average 8 hours and 35 minutes.
There are on average 1.5 hours of sunshine per day. So, the sun shines 20% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is 14 kph (9 mph).

February is generally a cold month. The average temperature is of 3.2 °C (38 °F), with a minimum of -0.3 °C (31.5 °F) and a maximum of 6.6 °C (43.9 °F).
On the coldest nights of the month, the temperature usually drops to around -7.5 °C (19 °F). However, it dropped to -16 °C (3.2 °F) in February 2012.
On the warmest days of the month, the temperature usually reaches around 14 °C (57 °F). However, it reached 19.1 °C (66.4 °F) in February 2019.
Precipitation amounts to 40 mm (1.6 in), distributed over 8 days.
The day lasts on average 10 hours and 5 minutes.
There are on average 3 hours of sunshine per day. So, the sun shines 28% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is 14 kph (9 mph).

March is generally a quite mild month. The average temperature is of 6.8 °C (44 °F), with a minimum of 2.4 °C (36.3 °F) and a maximum of 11.3 °C (52.3 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -4 °C (24.5 °F). However, it dropped to -12 °C (10.4 °F) in March 2005.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 19 °C (66 °F). However, it reached 23.5 °C (74.3 °F) in March 2017.
Precipitation amounts to 40 mm (1.6 in), distributed over 8 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 37% of the time.
The average humidity is 70%.
The average wind speed is 15 kph (9 mph).

April is generally a mild month. The average temperature is of 10.9 °C (52 °F), with a minimum of 5.5 °C (41.9 °F) and a maximum of 16.3 °C (61.3 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -1.5 °C (29.5 °F). However, it dropped to -4.5 °C (23.9 °F) in April 2003.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 24.5 °C (76.5 °F). However, it reached 29.7 °C (85.5 °F) in April 2012.
Precipitation amounts to 35 mm (1.4 in), distributed over 8 days.
The day lasts on average 13 hours and 55 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 61%.
The average wind speed is 13 kph (8 mph).

May is generally a very mild month. The average temperature is of 15.0 °C (59 °F), with a minimum of 9.5 °C (49.1 °F) and a maximum of 20.4 °C (68.7 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 2 °C (36 °F). However, it dropped to -1.2 °C (29.8 °F) in May 2019.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 29 °C (84 °F). However, it reached 33.2 °C (91.8 °F) in May 2017.
Precipitation amounts to 60 mm (2.4 in), distributed over 9 days.
The day lasts on average 15 hours and 30 minutes. So the days are long.
There are on average 7 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 63%.
The average wind speed is 13 kph (8 mph).

June is generally a warm month. The average temperature is of 18.4 °C (65 °F), with a minimum of 13 °C (55.4 °F) and a maximum of 23.9 °C (75 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 7 °C (44.5 °F). However, it dropped to 4.1 °C (39.4 °F) in June 1991.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 32.5 °C (90.5 °F). However, it reached 39.3 °C (102.7 °F) in June 2019.
Precipitation amounts to 55 mm (2.2 in), distributed over 9 days.
The day lasts on average 16 hours and 20 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 7.5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 63%.
The average wind speed is 13 kph (8 mph).

July, the warmest month of the year, is generally a warm month. The average temperature is of 20.6 °C (69 °F), with a minimum of 15 °C (59 °F) and a maximum of 26.1 °C (79 °F).
On the coldest nights of the month, the temperature usually drops to around 9.5 °C (49 °F). However, it dropped to 6.7 °C (44.1 °F) in July 2019.
On the warmest days of the month, the temperature usually reaches around 34 °C (93.5 °F). However, it reached 40.1 °C (104.2 °F) in July 2019.
Precipitation amounts to 65 mm (2.6 in), distributed over 10 days.
The day lasts on average 15 hours and 50 minutes. So the days are long.
There are on average 7.5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 60%.
The average wind speed is 12 kph (7 mph).

August is generally a warm month. The average temperature is of 20.2 °C (68 °F), with a minimum of 14.6 °C (58.3 °F) and a maximum of 25.7 °C (78.3 °F).
On the coldest nights of the month, the temperature usually drops to around 8.5 °C (47.5 °F). However, it dropped to 5 °C (41 °F) in August 1993.
On the warmest days of the month, the temperature usually reaches around 33.5 °C (92.5 °F). However, it reached 38.7 °C (101.7 °F) in August 2003.
Precipitation amounts to 60 mm (2.4 in), distributed over 9 days.
The day lasts on average 14 hours and 25 minutes. So the days are long.
There are on average 7.5 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 63%.
The average wind speed is 11 kph (7 mph).

September is generally a very mild month. The average temperature is of 15.8 °C (60 °F), with a minimum of 10.8 °C (51.4 °F) and a maximum of 20.8 °C (69.4 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 5 °C (41 °F). However, it dropped to 2.4 °C (36.3 °F) in September 2002.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 28 °C (82 °F). However, it reached 32.8 °C (91 °F) in September 2016.
Precipitation amounts to 50 mm (2 in), distributed over 8 days.
The day lasts on average 12 hours and 30 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 43% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is 11 kph (7 mph).

October is generally a mild month. The average temperature is of 10.9 °C (52 °F), with a minimum of 7 °C (44.6 °F) and a maximum of 14.8 °C (58.6 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 0 °C (32 °F). However, it dropped to -5 °C (23 °F) in October 2012.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 22 °C (71.5 °F). However, it reached 26.9 °C (80.4 °F) in October 2018.
Precipitation amounts to 50 mm (2 in), distributed over 9 days.
The day lasts on average 10 hours and 40 minutes.
There are on average 3.5 hours of sunshine per day. So, the sun shines 32% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is 12 kph (7 mph).

November is generally a quite cold month. The average temperature is of 6.2 °C (43 °F), with a minimum of 3.4 °C (38.1 °F) and a maximum of 8.9 °C (48 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -3 °C (26.5 °F). However, it dropped to -7.8 °C (18 °F) in November 1993.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 16 °C (61 °F). However, it reached 22.6 °C (72.7 °F) in November 2020.
Precipitation amounts to 50 mm (2 in), distributed over 9 days.
The day lasts on average 9 hours and 0 minutes.
There are on average 1.5 hours of sunshine per day. So, the sun shines 19% of the time.
The average humidity is 86%. Hence, the air is normally humid.
The average wind speed is 12 kph (8 mph).

December is generally a cold month. The average temperature is of 3.0 °C (37 °F), with a minimum of 0.6 °C (33.1 °F) and a maximum of 5.5 °C (41.9 °F).
On the coldest nights of the month, the temperature usually drops to around -7.5 °C (18 °F). However, it dropped to -16.9 °C (1.6 °F) in December 1996.
On the warmest days of the month, the temperature usually reaches around 12.5 °C (54.5 °F). However, it reached 15.3 °C (59.5 °F) in December 2006.
Precipitation amounts to 55 mm (2.2 in), distributed over 10 days.
The day lasts on average 8 hours and 5 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 1.5 hours of sunshine per day. So, the sun shines 16% of the time.
The average humidity is 87%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 mph).