July weather forecast
Bonn, Germany

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A stand-alone ancient castle in Bonn, Germany, with an urban setting down below
A stand-alone ancient castle in Bonn, Germany, with an urban setting down below

Weather in July

July is the warmest month in Bonn with temperatures rising to an average high of approximately 23.5°C (74.3°F). The city basks in the full glory of the summer sun, with the longest daylight hours of the year. Despite the high temperatures, rainfall maintains its presence though it varies hardly from the previous month. The sunny days are accompanied by refreshingly mild winds, creating an ideal environment for sunbathing and sightseeing. With an elevated UV index, a good sunscreen becomes essential to stave off sunburns during outdoor activities.

Temperature

July, on average, is the warmest month in Bonn, registering a high temperature of 23.5°C (74.3°F) and a low of 13°C (55.4°F).

Humidity

July and August, with an average relative humidity of 73%, are the least humid months in Bonn.

Rainfall

In Bonn, in July, it is raining for 15.6 days, with typically 28mm (1.1") of accumulated precipitation. In Bonn, during the entire year, the rain falls for 156 days and collects up to 305mm (12.01") of precipitation.

Snowfall

In Bonn, Germany, snow does not fall in April through October.

Daylight

In July, the average length of the day is 15h and 59min.
On the first day of the month, sunrise is at 05:23 and sunset at 21:47. On the last day of July, sunrise is at 05:57 and sunset at 21:18 CEST.

Sunshine

With an average of 9.9h of sunshine, July has the most sunshine of the year in Bonn.

UV index

The months with the highest UV index in Bonn are June and July, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 5 during July translates into the following directions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
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Frequently asked questions

What month is the hottest in Bonn?

With average high and low temperatures of 23.5°C (74.3°F) and 13°C (55.4°F) respectively, July is Bonn's warmest month.

What is the average July temperature in Bonn?

The high-temperature, in July, in Bonn, is 23.5°C (74.3°F), while the low-temperature averages to 13°C (55.4°F).

What are the least humid months in Bonn?

July and August, with an average relative humidity of 73%, are the least humid months.

What is the average humidity in July in Bonn?

In Bonn, the average relative humidity in July is 73%.

How much does it rain in Bonn in July?

In July, in Bonn, Germany, the rain falls for 15.6 days. Throughout July, 28mm (1.1") of precipitation is accumulated.

When it does not snow in Bonn?

In Bonn, Germany, snow does not fall in April through October.

How many hours of daylight does Bonn have in July?

The average day length in July is 15h and 59min.

When are sunrise and sunset in July in Bonn?

On the first day of July in Bonn, Germany, sunrise is at 05:23 and sunset at 21:47. On the last day of the month, sunrise is at 05:57 and sunset at 21:18 CEST.

What month has the most sunshine in Bonn?

The month with the most sunshine in Bonn, Germany, is July, with an average of 9.9h of sunshine.

How long on average sun shines in July in Bonn?

The average sunshine duration in July in Bonn, Germany, is 9.9h.

What is the month with the highest UV index in Bonn?

The months with the highest UV index in Bonn are June and July, with an average maximum UV index of 5.

What is the UV index intensity in July in Bonn?

The average daily maximum UV index in July in Bonn, Germany, is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Bonn, Germany

Average temperature in July - Bonn, Germany
  • Average high temperature in July: 23.5°C

The warmest month (with the highest average high temperature) is July (23.5°C).
The month with the lowest average high temperature is January (4°C).

  • Average low temperature in July: 13°C

The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (-0.3°C).

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Average pressure in July
Bonn, Germany

Average pressure in July - Bonn, Germany
  • Average pressure in July: 1015.5mbar

The month with the highest atmospheric pressure is September (1017.8mbar).
The month with the lowest atmospheric pressure is November (1013.6mbar).

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Average wind speed in July
Bonn, Germany

Average wind speed in July - Bonn, Germany
  • Average wind speed in July: 9.3km/h

The windiest month (with the highest average wind speed) is February (12.8km/h).
The calmest month (with the lowest average wind speed) is August (8.9km/h).

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Average humidity in July
Bonn, Germany

Average humidity in July - Bonn, Germany
  • Average humidity in July: 73%

The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (73%).

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Average rainfall in July
Bonn, Germany

Average rainfall in July - Bonn, Germany
  • Average rainfall in July: 28mm

The wettest month (with the highest rainfall) is August (33mm).
The driest months (with the least rainfall) are April and September (17mm).

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Average rainfall days in July
Bonn, Germany

Average rainfall days in July - Bonn, Germany
  • Average rainfall days in July: 15.6 days

The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is February (10.4 days).

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Average snowfall in July
Bonn, Germany

Average snowfall in July - Bonn, Germany
  • Average snowfall in July: 0mm

The month with the highest snowfall is February (35mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

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Average snowfall days in July
Bonn, Germany

Average snowfall days in July - Bonn, Germany
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in July /
Average sunshine in July
Bonn, Germany

Average daylight in July / Average sunshine in July - Bonn, Germany
  • Average daylight in July: 16h and 0min

The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).

  • Average sunshine in July: 9h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).

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Average sunshine days in July
Bonn, Germany

Average sunshine days in July - Bonn, Germany
  • Average sunshine days in July: 13 days

The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is December (11.4 days).

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Average UV index in July
Bonn, Germany

Average UV index in July - Bonn, Germany
  • Average UV index in July: 5

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in July
Bonn, Germany

Average cloud cover in July - Bonn, Germany
  • Average cloud cover in July: 39

The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 37).

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Average visibility in July
Bonn, Germany

Average visibility in July - Bonn, Germany
  • Average visibility in July: 9km

The months with the highest visibility are March, April, May, June, July and August (9km).
The months with the lowest visibility are January, February, September, October, November and December (8km).

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Bonn, Germany

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