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September Weather in Chesapeake City, United States

Last updated: June 24, 2025

In September, the average temperature in Chesapeake City, United States is a pleasant 22°C (72°F), with temperatures ranging from a cool 9°C (48°F) to a warm 33°C (92°F). Expect approximately 95 mm (3.8 in) of precipitation over about 11 days, and brace yourself for an average humidity level of 75%.

September Temperature in Chesapeake City

In September in Chesapeake City, the average temperature is 22°C (72°F). Maximums can reach 33°C (92°F), while minimums can be as low as 9°C (48°F). It’s a great time for travelers to enjoy a mix of warm days and cooler nights.

September Weather in Chesapeake City: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Chesapeake City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chesapeake City, September typically has an average temperature of 22°C (72°F), with highs reaching up to 33°C (92°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec364045566575807872624841
Data source: Temperature data for Chesapeake City 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.

September Precipitation in Chesapeake City

In Chesapeake City in September, the precipitation amount is 95 mm (3.8 in) spread over 11 days.

September Precipitation Trends in Chesapeake City

The chart displays monthly precipitation patterns in Chesapeake City, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Chesapeake City, September typically receives around 95 mm (3.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec6098100101133102132142951078298
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Chesapeake City

In Chesapeake City in September, humidity is 75%. With an average temperature of 22°C (72°F), this humidity feels like a warm embrace, making outdoor activities enjoyable yet requiring travelers to stay hydrated and take breaks in shaded areas.

September Average Humidity in Chesapeake City

This chart illustrates the average monthly humidity levels in Chesapeake City, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Chesapeake City is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%83%81%78%79%74%72%75%81%85%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Chesapeake City

In Chesapeake City in September, 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 Chesapeake City.

Maximum UV Index Levels in Chesapeake City for September

The chart shows the monthly maximum UV Index (UVI) for Chesapeake City in September, 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 September, the maximum UV index in Chesapeake City typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098643
Data source: Chesapeake City September 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 September Weather in Chesapeake City Compares to Other Months

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

This table compares monthly weather conditions in Chesapeake City, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (37°F)60 mm (2.4 inches)84%moderate
February Weather4°C (40°F)98 mm (3.8 inches)83%moderate
March Weather7°C (46°F)100 mm (4.0 inches)83%high
April Weather13°C (56°F)101 mm (4.0 inches)81%very high
May Weather18°C (66°F)133 mm (5.2 inches)78%very high
June Weather24°C (75°F)102 mm (4.0 inches)79%very high
July Weather27°C (80°F)132 mm (5.2 inches)74%very high
August Weather25°C (78°F)142 mm (5.6 inches)72%very high
September Weather22°C (72°F)95 mm (3.8 inches)75%very high
October Weather17°C (62°F)107 mm (4.2 inches)81%high
November Weather9°C (48°F)82 mm (3.2 inches)85%moderate
December Weather5°C (41°F)98 mm (3.9 inches)84%moderate

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