April Weather in Bethlehem, United States

Last updated: June 24, 2025

In April, the average temperature in Bethlehem, United States hovers around 17°C (62°F). Temperatures can range from a brisk 0°C (33°F) to a warm 29°C (85°F). Prepare for some showers, as the area receives an average precipitation of 123 mm (4.8 in) over 9 days. You'll also experience a cozy average humidity of 81%, making it an interesting month to explore!

April Temperature in Bethlehem

In April in Bethlehem, the average temperature is 17°C (62°F). Maximum temperatures can reach up to 29°C (85°F), while minimum temperatures can drop as low as 0°C (33°F). This variation makes Bethlehem an ideal destination for travelers seeking a mix of mild weather and comfortable conditions.

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

The chart illustrates April temperature patterns in Bethlehem, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bethlehem, April typically has an average temperature of 17°C (62°F), with highs reaching up to 29°C (85°F) and lows dropping to around 0°C (33°F).

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

April Precipitation in Bethlehem

In Bethlehem in April, the precipitation amount is 123 mm (4.8 in) over the course of 9 days.

April Precipitation Trends in Bethlehem

The chart displays monthly precipitation patterns in Bethlehem, 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 Bethlehem, April typically receives around 123 mm (4.8 inches) of precipitation spread over approximately 9 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 Bethlehem

In Bethlehem in April, humidity is 81%. With an average temperature of 17°C (62°F), this humidity feels like a warm blanket enveloping you, making outdoor adventures feel sticky and requiring frequent breaks to stay comfortable while exploring.

April Average Humidity in Bethlehem

This chart illustrates the average monthly humidity levels in Bethlehem, 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 Bethlehem 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 Bethlehem

In Bethlehem in April, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Bethlehem.

Maximum UV Index Levels in Bethlehem for April

The chart shows the monthly maximum UV Index (UVI) for Bethlehem 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 Bethlehem typically reaches 10, which falls under the very high exposure category.

Data source: Bethlehem 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 Bethlehem Compares to Other Months

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

This table compares monthly weather conditions in Bethlehem, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (46°F)	108 mm (4.3 inches)	86%	moderate
February Weather	10°C (51°F)	147 mm (5.8 inches)	84%	high
March Weather	13°C (56°F)	130 mm (5.1 inches)	83%	very high
April Weather	17°C (62°F)	123 mm (4.8 inches)	81%	very high
May Weather	21°C (71°F)	125 mm (4.9 inches)	81%	extreme
June Weather	24°C (76°F)	127 mm (5.0 inches)	81%	extreme
July Weather	26°C (79°F)	118 mm (4.7 inches)	83%	extreme
August Weather	26°C (78°F)	147 mm (5.8 inches)	81%	very high
September Weather	23°C (75°F)	116 mm (4.6 inches)	82%	very high
October Weather	19°C (66°F)	141 mm (5.5 inches)	78%	very high
November Weather	11°C (52°F)	80 mm (3.1 inches)	86%	high
December Weather	9°C (48°F)	135 mm (5.3 inches)	89%	moderate