August Weather in Nashua, United States

Last updated: June 24, 2025

In August, the average temperature in Nashua, United States is a pleasant 21°C (71°F). Visitors can expect a minimum of 10°C (50°F) and a maximum of 35°C (96°F) during this time. With 119 mm (4.7 in) of precipitation spread over 9 days, there's a good chance of rain, so it's wise to pack accordingly. The average humidity sits at a comfortable 77%, making for a warm and inviting atmosphere.

August Temperature in Nashua

In August in Nashua, the average temperature is 21°C (71°F), with maximums reaching 35°C (96°F) and minimums dropping as low as 10°C (50°F). This makes Nashua a great destination for travelers seeking warm days and cooler nights, perfect for outdoor activities and exploring the local culture.

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

The chart illustrates August temperature patterns in Nashua, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nashua, August typically has an average temperature of 21°C (71°F), with highs reaching up to 35°C (96°F) and lows dropping to around 10°C (50°F).

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

August Precipitation in Nashua

In Nashua in August, the precipitation amount is 119 mm (4.7 in) occurring over a span of 9 days.

August Precipitation Trends in Nashua

The chart displays monthly precipitation patterns in Nashua, 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 Nashua, August typically receives around 119 mm (4.7 inches) of precipitation spread over approximately 9 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 Nashua

In Nashua in August, humidity is 77%. With an average temperature of 21°C (71°F), this humidity feels like a warm embrace that envelops you, making it both refreshing and slightly heavy, which can be a bit tiring for traveling.

August Average Humidity in Nashua

This chart illustrates the average monthly humidity levels in Nashua, 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 Nashua is approximately 77%, 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 Nashua

In Nashua 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 Nashua.

Maximum UV Index Levels in Nashua for August

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

Data source: Nashua 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 Nashua Compares to Other Months

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

This table compares monthly weather conditions in Nashua, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (19°F)	38 mm (1.5 inches)	82%	moderate
February Weather	-7°C (19°F)	50 mm (2.0 inches)	84%	moderate
March Weather	2°C (36°F)	72 mm (2.8 inches)	80%	moderate
April Weather	8°C (46°F)	72 mm (2.8 inches)	81%	very high
May Weather	16°C (60°F)	163 mm (6.4 inches)	74%	very high
June Weather	22°C (72°F)	128 mm (5.0 inches)	80%	extreme
July Weather	23°C (74°F)	92 mm (3.6 inches)	80%	very high
August Weather	21°C (71°F)	119 mm (4.7 inches)	77%	very high
September Weather	18°C (65°F)	114 mm (4.5 inches)	75%	very high
October Weather	10°C (50°F)	130 mm (5.1 inches)	80%	moderate
November Weather	2°C (35°F)	50 mm (2.0 inches)	87%	moderate
December Weather	-2°C (28°F)	37 mm (1.4 inches)	83%	moderate