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September Weather in Hopewell, United States

Last updated: June 24, 2025

In September, the average temperature in Hopewell, United States hovers around 23°C (74°F), offering a pleasant climate for outdoor activities. However, be prepared for temperatures to fluctuate, with a minimum of 8°C (47°F) and a maximum reaching up to 35°C (96°F). During this month, you can expect 105 mm (4.1 in) of precipitation spread across 10 days, and with an average humidity level of 78%, stay hydrated and enjoy the refreshing atmosphere!

September Temperature in Hopewell

In September in Hopewell, the average temperature is 23°C (74°F). The maximum can reach 35°C (96°F), and the minimum can drop as low as 8°C (47°F). This variety in temperatures makes Hopewell a suitable destination for travelers seeking both warm days and cooler evenings.

September Weather in Hopewell: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Hopewell, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hopewell, September typically has an average temperature of 23°C (74°F), with highs reaching up to 35°C (96°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec414650606976817873645045
Data source: Temperature data for Hopewell 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 Hopewell

In Hopewell in September, the precipitation amount is 105 mm (4.1 in) over the course of 10 days.

September Precipitation Trends in Hopewell

The chart displays monthly precipitation patterns in Hopewell, 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 Hopewell, September typically receives around 105 mm (4.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec79101821081081091231571051247693
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Hopewell

In Hopewell in September humidity is 78%. With an average temperature of 23°C (74°F), this humidity feels like a warm, enveloping embrace, making travel somewhat stifling and prompting frequent breaks to hydrate and seek shade.

September Average Humidity in Hopewell

This chart illustrates the average monthly humidity levels in Hopewell, 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 Hopewell is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%82%81%80%82%81%81%78%80%84%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Hopewell

In Hopewell in September, 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 Hopewell.

Maximum UV Index Levels in Hopewell for September

The chart shows the monthly maximum UV Index (UVI) for Hopewell 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 Hopewell typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3679101011109853
Data source: Hopewell 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 Hopewell Compares to Other Months

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

This table compares monthly weather conditions in Hopewell, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)79 mm (3.1 inches)84%moderate
February Weather8°C (46°F)101 mm (4.0 inches)83%high
March Weather10°C (51°F)82 mm (3.2 inches)82%high
April Weather16°C (60°F)108 mm (4.3 inches)81%very high
May Weather20°C (69°F)108 mm (4.2 inches)80%very high
June Weather24°C (76°F)109 mm (4.3 inches)82%very high
July Weather27°C (81°F)123 mm (4.8 inches)81%extreme
August Weather26°C (79°F)157 mm (6.2 inches)81%very high
September Weather23°C (74°F)105 mm (4.1 inches)78%very high
October Weather18°C (64°F)124 mm (4.9 inches)80%very high
November Weather10°C (50°F)76 mm (3.0 inches)84%moderate
December Weather7°C (45°F)93 mm (3.7 inches)84%moderate

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