April weather - Spring 2024

Weather in April
Frequently asked questions
Average temperature in April
Average pressure in April
Average wind speed in April
Average humidity in April
Average rainfall in April
Average rainfall days in April
Average snowfall in April
Average snowfall days in April
Average daylight in April
Average sunshine in April
Average sunshine days in April
Average UV index in April
Average cloud cover in April
Average visibility in April

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

Weather in April

Bonn, Germany, continues its gradual transition from winter to spring weather during the month of April. The climate is more temperate now, with the longer days and increased daylight hours enhancing the pleasant atmosphere. The frequency of rainfall decreases, but the city continues to receive rainy days approximately 12 times this month, ensuring that the greenery stays well-nourished. The average high temperatures jump up to 15.1°C, making this a delightful period for outdoor activity. Meanwhile, the UV index, measures at a level close to 3, prompting the need for sun protection on the brighter days.

Temperature

As April arrives, a rise in the average high-temperature is observed, moving from a chilly 9.7°C in March to a mild 15.1°C. During the month of April, an average low-temperature of 5°C is recorded.

Humidity

In April, the average relative humidity is 74%.

Rainfall

The months with the least rainfall in Bonn are April and September Rain falls for 11.8 days and accumulates 17mm of rain.

Snowfall

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

Daylight

In April, the average length of the day is 13h and 51min.
On the first day of April, sunrise is at 07:07 and sunset at 20:03. On the last day of the month, sunrise is at 06:07 and sunset at 20:50 CEST.

Sunshine

The average sunshine in April is 9h.

UV index

In Bonn, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: A typical high UV index of 3 in April suggests the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.

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FAQ

What are the temperatures in Bonn in April?

The high-temperature, in April, in Bonn, is 15.1°C, while the low-temperature averages to 5°C.

What is the average humidity in April in Bonn?

In Bonn, the average relative humidity in April is 74%.

What is the driest month in Bonn?

April and September are months with the least rain in Bonn, Germany, when the rain falls for 11.8 days and typically aggregates up to 17mm of rain.

How many days does it rain in April in Bonn?

In Bonn, in April, during 11.8 rainfall days, 17mm of precipitation is typically accumulated.

When it does not snow in Bonn?

April through October are months without snowfall.

Does it snow in Bonn in April?

In April, in Bonn, Germany, it doesn't snow. March is the latest month when it typically snows.

What is the average length of the day in April in Bonn?

In April, the average day length is 13h and 51min.

What time are sunrise and sunset in April in Bonn?

On the first day of April in Bonn, sunrise is at 07:07 and sunset at 20:03. On the last day of the month, sunrise is at 06:07 and sunset at 20:50 CEST.

How long on average sun shines in April in Bonn?

In Bonn, the average sunshine duration in April is 9h.

How high is the UV index in April in Bonn?

The average daily maximum UV index in April in Bonn is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M April M J J A S O N D

Mar

April

May

Average high temperature

9.7°C

15.1°C

17.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

12.9km/h

10.9km/h

10.6km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

15.8

13.1

Average UV index

Average cloud cover

Average visibility

Average temperature in April
Bonn, Germany

Average high temperature in April: 15.1°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 April: 5°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 April
Bonn, Germany

Average pressure in April: 1015.8mbar

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 April
Bonn, Germany

Average wind speed in April: 10.2km/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 April
Bonn, Germany

Average humidity in April: 74%

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 April
Bonn, Germany

Average rainfall in April: 17mm

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 April
Bonn, Germany

Average rainfall days in April: 11.8 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 April
Bonn, Germany

Average snowfall in April: 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 April
Bonn, Germany

Average snowfall days in April: 0.3 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 April /
Average sunshine in April
Bonn, Germany

Average daylight in April: 13h and 5min

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 April: 9h and 0min

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 April
Bonn, Germany

Average sunshine days in April: 15.8 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 April
Bonn, Germany

Average UV index in April: 3

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 April
Bonn, Germany

Average cloud cover in April: 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 April
Bonn, Germany

Average visibility in April: 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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April weather forecast
Bonn, Germany

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