April Weather in Southampton, United States

Last updated: June 24, 2025

In April, the average temperature in Southampton, United States hovers around 8°C (48°F), but be prepared for a range that can dip to a brisk -5°C (24°F) and soar up to a warm 29°C (85°F). During this time, expect 144 mm (5.7 in) of precipitation spread over 13 days, contributing to an average humidity level of a high 84%. Whether you're enjoying cool afternoons or preparing for unexpected rain, this month offers a unique climate experience!

April Temperature in Southampton

In April in Southampton, the average temperature is 8°C (48°F). The maximum can reach 29°C (85°F), while the minimum can drop as low as -5°C (24°F). Travelers should be prepared for a wide range of temperatures, making it essential to pack layers for varying weather conditions.

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

The chart illustrates April temperature patterns in Southampton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Southampton, April typically has an average temperature of 8°C (48°F), with highs reaching up to 29°C (85°F) and lows dropping to around -5°C (24°F).

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

April Precipitation in Southampton

In Southampton in April, the precipitation amount is 144 mm (5.7 in) spread over 13 days.

April Precipitation Trends in Southampton

The chart displays monthly precipitation patterns in Southampton, 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 Southampton, April typically receives around 144 mm (5.7 inches) of precipitation spread over approximately 13 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

April Humidity in Southampton

In Southampton in April humidity is 84%. With an average temperature of 8°C (48°F), this humidity feels like a damp chill that seeps into your bones, making it uncomfortable for traveling and requiring you to layer up as you explore.

April Average Humidity in Southampton

This chart illustrates the average monthly humidity levels in Southampton, 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 Southampton is approximately 84%, 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 Southampton

In Southampton in April, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Southampton.

Maximum UV Index Levels in Southampton for April

The chart shows the monthly maximum UV Index (UVI) for Southampton 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 Southampton typically reaches 8, which falls under the very high exposure category.

Data source: Southampton 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 Southampton Compares to Other Months

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

This table compares monthly weather conditions in Southampton, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (28°F)	79 mm (3.1 inches)	89%	moderate
February Weather	-1°C (31°F)	97 mm (3.8 inches)	88%	moderate
March Weather	2°C (36°F)	85 mm (3.4 inches)	86%	high
April Weather	8°C (48°F)	144 mm (5.7 inches)	84%	very high
May Weather	15°C (59°F)	109 mm (4.3 inches)	76%	very high
June Weather	20°C (68°F)	89 mm (3.5 inches)	72%	very high
July Weather	23°C (73°F)	158 mm (6.2 inches)	66%	very high
August Weather	22°C (72°F)	106 mm (4.2 inches)	64%	very high
September Weather	18°C (65°F)	112 mm (4.4 inches)	72%	very high
October Weather	12°C (54°F)	156 mm (6.2 inches)	81%	high
November Weather	5°C (41°F)	97 mm (3.8 inches)	87%	moderate
December Weather	0°C (32°F)	123 mm (4.8 inches)	84%	low