August Weather in Dover, United States

Last updated: June 24, 2025

In Dover, United States, the average temperature in August hovers around 20°C (68°F), with a range that can dip to a cool 6°C (43°F) or rise to a warm 32°C (89°F). Expect about 127 mm (5.0 in) of precipitation spread over 12 days, giving the month a moderate wetness. With an average humidity of 64%, you might want to keep your umbrella handy while enjoying the pleasant climate!

August Temperature in Dover

In August in Dover, the average temperature is 20°C (68°F). The maximum can reach 32°C (89°F) and the minimum can be as low as 6°C (43°F). This range makes it a great time to explore outdoor activities while packing for both warm and cooler weather.

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

The chart illustrates August temperature patterns in Dover, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dover, August typically has an average temperature of 20°C (68°F), with highs reaching up to 32°C (89°F) and lows dropping to around 6°C (43°F).

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

August Precipitation in Dover

In Dover in August, the precipitation amount is 127 mm (5.0 in) occurring over the course of 12 days.

August Precipitation Trends in Dover

The chart displays monthly precipitation patterns in Dover, 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 Dover, August typically receives around 127 mm (5.0 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 Dover

In Dover in August humidity is 64%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making it a perfect time for travelers to explore, though they might want to stay hydrated and take breaks in the shade to fully enjoy the experience.

August Average Humidity in Dover

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

In Dover 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 Dover.

Maximum UV Index Levels in Dover for August

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

Data source: Dover 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 Dover Compares to Other Months

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

This table compares monthly weather conditions in Dover, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (23°F)	81 mm (3.2 inches)	89%	moderate
February Weather	-4°C (25°F)	97 mm (3.8 inches)	88%	moderate
March Weather	0°C (32°F)	80 mm (3.1 inches)	86%	high
April Weather	6°C (44°F)	142 mm (5.6 inches)	84%	very high
May Weather	13°C (56°F)	105 mm (4.1 inches)	76%	very high
June Weather	18°C (65°F)	109 mm (4.3 inches)	72%	very high
July Weather	21°C (70°F)	164 mm (6.5 inches)	66%	very high
August Weather	20°C (68°F)	127 mm (5.0 inches)	64%	very high
September Weather	16°C (61°F)	105 mm (4.1 inches)	72%	high
October Weather	10°C (50°F)	166 mm (6.5 inches)	81%	high
November Weather	2°C (36°F)	106 mm (4.2 inches)	87%	moderate
December Weather	-3°C (27°F)	116 mm (4.6 inches)	84%	low