April Weather in Jena, United States

Last updated: June 24, 2025

In April, the average temperature in Jena, United States is a pleasant 19°C (66°F), with temperatures ranging from a chilly 1°C (34°F) to a warm 31°C (88°F). Expect about 147 mm (5.8 in) of precipitation spread over 10 days, and prepare for a humidity level averaging 81%.

April Temperature in Jena

In April in Jena, the average temperature is 19°C (66°F). Maximums can reach 31°C (88°F), while minimums can dip as low as 1°C (34°F). It's an ideal time for travelers to enjoy a variety of outdoor activities in comfortable weather.

April Weather in Jena: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Jena, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jena, April typically has an average temperature of 19°C (66°F), with highs reaching up to 31°C (88°F) and lows dropping to around 1°C (34°F).

Data source: Temperature data for Jena generated using information from the Copernicus Climate Change Service.

April Precipitation in Jena

In Jena in April, the precipitation amount is 147 mm (5.8 in) over the course of 10 days.

April Precipitation Trends in Jena

The chart displays monthly precipitation patterns in Jena, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Jena, April typically receives around 147 mm (5.8 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

April Humidity in Jena

In Jena in April, humidity is 81%. With an average temperature of 19°C (66°F), this humidity feels like a warm, heavy blanket enveloping you, making travel feel both muggy and slightly stifling, often leading to a need for frequent breaks in the shade.

April Average Humidity in Jena

This chart illustrates the average monthly humidity levels in Jena, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Jena is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Jena

In Jena in April, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Jena.

Maximum UV Index Levels in Jena for April

The chart shows the monthly maximum UV Index (UVI) for Jena in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In April, the maximum UV index in Jena typically reaches 11, which falls under the extreme exposure category.

Data source: Jena April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How April Weather in Jena Compares to Other Months

Weather in Jena varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Jena, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Jena, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (50°F)	113 mm (4.4 inches)	83%	moderate
February Weather	12°C (54°F)	155 mm (6.1 inches)	83%	high
March Weather	17°C (63°F)	111 mm (4.4 inches)	80%	very high
April Weather	19°C (66°F)	147 mm (5.8 inches)	81%	extreme
May Weather	24°C (75°F)	164 mm (6.5 inches)	81%	extreme
June Weather	27°C (80°F)	133 mm (5.2 inches)	78%	extreme
July Weather	28°C (83°F)	124 mm (4.9 inches)	79%	extreme
August Weather	28°C (83°F)	130 mm (5.1 inches)	79%	extreme
September Weather	26°C (79°F)	111 mm (4.4 inches)	79%	very high
October Weather	21°C (70°F)	119 mm (4.7 inches)	77%	very high
November Weather	14°C (57°F)	75 mm (3.0 inches)	85%	high
December Weather	12°C (54°F)	127 mm (5.0 inches)	88%	moderate