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August Weather in Norwich, United States

Last updated: June 24, 2025

In August, the average temperature in Norwich, United States hovers around 20°C (68°F), with a pleasant range that sees minimums of 6°C (43°F) and maximums reaching 32°C (89°F). Expect 117 mm (4.6 in) of precipitation over approximately 13 days, contributing to an average humidity of 76%. Whether you're exploring the sights or enjoying cozy indoor activities, the weather in Norwich offers a unique charm!

August Temperature in Norwich

In August in Norwich, 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 Norwich: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Norwich, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Norwich, 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).
JanFebMarAprMayJunJulAugSepOctNovDec242733455765706862523729
Data source: Temperature data for Norwich 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 Norwich

In Norwich in August, the total precipitation amount is 117 mm (4.6 in) spread over 13 days.

August Precipitation Trends in Norwich

The chart displays monthly precipitation patterns in Norwich, 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 Norwich, August typically receives around 117 mm (4.6 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec8596881191271091341179815610398
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Norwich

In Norwich in August, humidity is 76%. With an average temperature of 20°C (68°F), this humidity feels like a warm blanket wrapping around you, making outdoor exploration both exhilarating and slightly stifling, ideal for leisurely strolls but necessitating frequent breaks to hydrate and cool off.

August Average Humidity in Norwich

This chart illustrates the average monthly humidity levels in Norwich, 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 Norwich is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%87%88%82%79%78%76%78%84%89%86%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Norwich

In Norwich 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 Norwich.

Maximum UV Index Levels in Norwich for August

The chart shows the monthly maximum UV Index (UVI) for Norwich 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 Norwich typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346910101098642
Data source: Norwich 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 Norwich Compares to Other Months

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

This table compares monthly weather conditions in Norwich, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)85 mm (3.4 inches)90%moderate
February Weather-3°C (27°F)96 mm (3.8 inches)90%moderate
March Weather0°C (33°F)88 mm (3.5 inches)87%high
April Weather7°C (45°F)119 mm (4.7 inches)88%very high
May Weather14°C (57°F)127 mm (5.0 inches)82%very high
June Weather18°C (65°F)109 mm (4.3 inches)79%very high
July Weather21°C (70°F)134 mm (5.3 inches)78%very high
August Weather20°C (68°F)117 mm (4.6 inches)76%very high
September Weather16°C (62°F)98 mm (3.9 inches)78%very high
October Weather11°C (52°F)156 mm (6.1 inches)84%high
November Weather3°C (37°F)103 mm (4.1 inches)89%moderate
December Weather-1°C (30°F)98 mm (3.9 inches)86%low

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