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August Weather in Dover, United States

Last updated: June 24, 2025

In August, the average temperature in Dover, United States is a comfortable 21°C (70°F). However, temperatures can fluctuate, with a minimum of 10°C (50°F) and soaring to a maximum of 34°C (94°F). Expect some rain, as the region typically receives 122 mm (4.8 in) of precipitation over 11 days. With an average humidity of 69%, be prepared for a pleasant yet slightly damp atmosphere.

August Temperature in Dover

In August in Dover, the average temperature is 21°C (70°F). Maximums can reach 34°C (94°F) and minimums can be as low as 10°C (50°F). This makes it an ideal time for travelers to enjoy pleasant weather while exploring the area's attractions.

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 21°C (70°F), with highs reaching up to 34°C (94°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec171834435870737064483425
Data source: Temperature data for Dover generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Dover

In Dover in August, the total precipitation amount is 122 mm (4.8 in) over a span of 11 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 122 mm (4.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec36475887145139991221211134942
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Dover

In Dover in August humidity is 69%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, making outdoor activities enjoyable but requiring occasional breaks for hydration and shade during your travels.

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 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%85%84%83%75%79%75%69%74%79%88%82%
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.
JanFebMarAprMayJunJulAugSepOctNovDec35589101098532
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.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)36 mm (1.4 inches)84%moderate
February Weather-8°C (19°F)47 mm (1.9 inches)85%moderate
March Weather1°C (34°F)58 mm (2.3 inches)84%moderate
April Weather6°C (44°F)87 mm (3.4 inches)83%very high
May Weather15°C (59°F)145 mm (5.7 inches)75%very high
June Weather21°C (71°F)139 mm (5.5 inches)79%very high
July Weather23°C (73°F)99 mm (3.9 inches)75%very high
August Weather21°C (70°F)122 mm (4.8 inches)69%very high
September Weather18°C (64°F)121 mm (4.8 inches)74%very high
October Weather9°C (48°F)113 mm (4.5 inches)79%moderate
November Weather1°C (34°F)49 mm (1.9 inches)88%moderate
December Weather-4°C (25°F)42 mm (1.7 inches)82%low

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