April Weather in Summerville, United States

Last updated: June 24, 2025

In Summerville, United States, the average temperature in April hovers around 19°C (66°F), with extremes that can dip to a chilly 0°C (32°F) or soar to a warm 32°C (90°F). Rain is not uncommon, with about 108 mm (4.2 in) expected over 8 days, contributing to an average humidity level of 79%. Embrace the varied weather by preparing for both sun and showers!

April Temperature in Summerville

In April in Summerville, the average temperature is 19°C (66°F). Maximum temperatures can reach 32°C (90°F), while the minimum can drop as low as 0°C (32°F). This variation makes it essential for travelers to pack accordingly for both warm and cool conditions.

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

The chart illustrates April temperature patterns in Summerville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Summerville, April typically has an average temperature of 19°C (66°F), with highs reaching up to 32°C (90°F) and lows dropping to around 0°C (32°F).

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

April Precipitation in Summerville

In Summerville in April, the precipitation amount is 108 mm (4.2 in), which occurs over a span of 8 days.

April Precipitation Trends in Summerville

The chart displays monthly precipitation patterns in Summerville, 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 Summerville, April typically receives around 108 mm (4.2 inches) of precipitation spread over approximately 8 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 Summerville

In Summerville in April humidity is 79%. With an average temperature of 19°C (66°F), this humidity feels like a warm embrace, making it feel much warmer than the actual temperature and creating a heavy, sticky atmosphere that can be a bit uncomfortable for traveling.

April Average Humidity in Summerville

This chart illustrates the average monthly humidity levels in Summerville, 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 Summerville is approximately 79%, 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 Summerville

In Summerville 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 Summerville.

Maximum UV Index Levels in Summerville for April

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

Data source: Summerville 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 Summerville Compares to Other Months

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

This table compares monthly weather conditions in Summerville, 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 (51°F)	64 mm (2.5 inches)	86%	moderate
February Weather	13°C (56°F)	92 mm (3.6 inches)	81%	high
March Weather	15°C (60°F)	71 mm (2.8 inches)	81%	very high
April Weather	19°C (66°F)	108 mm (4.2 inches)	79%	very high
May Weather	23°C (74°F)	92 mm (3.6 inches)	75%	extreme
June Weather	26°C (79°F)	156 mm (6.1 inches)	75%	extreme
July Weather	27°C (81°F)	191 mm (7.5 inches)	80%	extreme
August Weather	27°C (81°F)	176 mm (6.9 inches)	81%	extreme
September Weather	25°C (77°F)	146 mm (5.8 inches)	83%	very high
October Weather	21°C (70°F)	75 mm (3.0 inches)	78%	very high
November Weather	14°C (57°F)	70 mm (2.8 inches)	85%	high
December Weather	12°C (53°F)	132 mm (5.2 inches)	87%	moderate