August Weather in Stonington, United States

Last updated: June 24, 2025

In August, the average temperature in Stonington, United States hovers around 18°C (64°F), with a comfortable minimum of 13°C (57°F) and a pleasant maximum of 23°C (73°F). Expect 86 mm (3.4 in) of precipitation spread over 8 days, contributing to an average humidity of 74%. Perfect for those who enjoy a mild climate!

August Temperature in Stonington

In August in Stonington, the average temperature is 18°C (64°F). The maximum can reach 23°C (73°F) and the minimum can be as low as 13°C (57°F). This mild climate makes it an ideal time for travelers to explore and enjoy outdoor activities in Stonington.

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

The chart illustrates August temperature patterns in Stonington, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Stonington, August typically has an average temperature of 18°C (64°F), with highs reaching up to 23°C (73°F) and lows dropping to around 13°C (57°F).

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

August Precipitation in Stonington

In Stonington in August, the precipitation amount reaches 86 mm (3.4 in) over the course of 8 days.

August Precipitation Trends in Stonington

The chart displays monthly precipitation patterns in Stonington, 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 Stonington, August typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 8 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 Stonington

In Stonington in August humidity is 74%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making it ideal for leisurely strolls but potentially uncomfortable for extended outdoor activities.

August Average Humidity in Stonington

This chart illustrates the average monthly humidity levels in Stonington, 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 Stonington is approximately 74%, 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 Stonington

In Stonington in August, 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 Stonington.

Maximum UV Index Levels in Stonington for August

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

Data source: Stonington 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 Stonington Compares to Other Months

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

This table compares monthly weather conditions in Stonington, 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 (29°F)	108 mm (4.3 inches)	88%	low
February Weather	-1°C (30°F)	105 mm (4.1 inches)	88%	moderate
March Weather	0°C (33°F)	84 mm (3.3 inches)	85%	moderate
April Weather	5°C (41°F)	157 mm (6.2 inches)	81%	high
May Weather	9°C (49°F)	105 mm (4.1 inches)	76%	very high
June Weather	13°C (56°F)	87 mm (3.4 inches)	74%	very high
July Weather	16°C (62°F)	92 mm (3.6 inches)	74%	very high
August Weather	18°C (64°F)	86 mm (3.4 inches)	74%	very high
September Weather	16°C (60°F)	102 mm (4.0 inches)	77%	high
October Weather	12°C (54°F)	145 mm (5.7 inches)	82%	moderate
November Weather	6°C (43°F)	138 mm (5.4 inches)	85%	moderate
December Weather	1°C (34°F)	155 mm (6.1 inches)	84%	low