April Weather in Brookhaven, United States

Last updated: June 24, 2025

In Brookhaven, United States, the average temperature in April is a pleasant 18°C (65°F). However, be prepared for a temperature range that can dip to a chilly 3°C (37°F) and rise to a warm 31°C (87°F). Expect about 163 mm (6.4 in) of precipitation over 9 days, contributing to an average humidity of 81%. Whether you’re enjoying the warmth or preparing for a refreshing rain, April offers a unique blend of climate!

April Temperature in Brookhaven

In April in Brookhaven, the average temperature is 18°C (65°F). Maximum temperatures can reach 31°C (87°F), while minimums can drop to as low as 3°C (37°F). It's a great time to visit Brookhaven for travelers seeking pleasant weather and a range of outdoor activities.

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

The chart illustrates April temperature patterns in Brookhaven, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Brookhaven, April typically has an average temperature of 18°C (65°F), with highs reaching up to 31°C (87°F) and lows dropping to around 3°C (37°F).

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

April Precipitation in Brookhaven

In Brookhaven in April, the total precipitation amount is 163 mm (6.4 in) over a span of 9 days.

April Precipitation Trends in Brookhaven

The chart displays monthly precipitation patterns in Brookhaven, 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 Brookhaven, April typically receives around 163 mm (6.4 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 Brookhaven

In Brookhaven in April, humidity is 81%. With an average temperature of 18°C (65°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier and the air thick and sultry—a challenging environment for traveling.

April Average Humidity in Brookhaven

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

In Brookhaven 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 Brookhaven.

Maximum UV Index Levels in Brookhaven for April

The chart shows the monthly maximum UV Index (UVI) for Brookhaven 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 Brookhaven typically reaches 11, which falls under the extreme exposure category.

Data source: Brookhaven 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 Brookhaven Compares to Other Months

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

This table compares monthly weather conditions in Brookhaven, 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)	120 mm (4.7 inches)	83%	moderate
February Weather	13°C (55°F)	129 mm (5.1 inches)	83%	very high
March Weather	16°C (62°F)	120 mm (4.7 inches)	80%	very high
April Weather	18°C (65°F)	163 mm (6.4 inches)	81%	extreme
May Weather	23°C (74°F)	175 mm (6.9 inches)	81%	extreme
June Weather	26°C (79°F)	149 mm (5.8 inches)	78%	extreme
July Weather	27°C (81°F)	131 mm (5.1 inches)	79%	extreme
August Weather	27°C (80°F)	169 mm (6.6 inches)	79%	extreme
September Weather	26°C (78°F)	110 mm (4.3 inches)	79%	very high
October Weather	21°C (70°F)	104 mm (4.1 inches)	77%	very high
November Weather	14°C (57°F)	85 mm (3.4 inches)	85%	high
December Weather	12°C (53°F)	139 mm (5.5 inches)	88%	moderate