August Weather in Southampton, United States

Last updated: June 24, 2025

In Southampton, United States, the average temperature in August hovers around 22°C (72°F), with a comfortable humidity level of 64%. Expect a range of temperatures, with minimums dipping to 9°C (49°F) and maximums reaching up to 34°C (94°F). Be prepared for some rain, as 106 mm (4.2 in) of precipitation can fall over 12 days this month.

August Temperature in Southampton

In August in Southampton, the average temperature is 22°C (72°F). Maximums can reach 34°C (94°F), while minimums can dip as low as 9°C (49°F). This pleasant climate makes Southampton an ideal destination for travelers looking to enjoy both warm days and cooler evenings.

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

The chart illustrates August 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, August typically has an average temperature of 22°C (72°F), with highs reaching up to 34°C (94°F) and lows dropping to around 9°C (49°F).

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

August Precipitation in Southampton

In Southampton in August, the precipitation amount is 106 mm (4.2 in), occurring over a span of 12 days.

August Precipitation Trends in Southampton

The chart displays monthly precipitation patterns in Southampton, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Southampton, August typically receives around 106 mm (4.2 inches) of precipitation spread over approximately 12 days.

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

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Millimeters (mm) Inches (in)

August Humidity in Southampton

In Southampton in August humidity is 64%. With an average temperature of 22°C (72°F), this humidity feels like a warm, tropical embrace, making travel enjoyable yet slightly sticky, prompting visitors to seek shade or refreshing beverages while exploring the vibrant surroundings.

August Average Humidity in Southampton

This chart illustrates the average monthly humidity levels in Southampton, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Southampton is approximately 64%, offering insight into how humid the weather typically is during this month.

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

August UV Index in Southampton

In Southampton in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Southampton.

Maximum UV Index Levels in Southampton for August

The chart shows the monthly maximum UV Index (UVI) for Southampton in August, 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 August, the maximum UV index in Southampton typically reaches 9, which falls under the very high exposure category.

Data source: Southampton August 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 August 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 August’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 August’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