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September Weather in New Hope, United States

Last updated: June 24, 2025

In New Hope, United States, the average temperature in September hovers around 18°C (64°F), with a minimum dipping to 2°C (35°F) and a maximum reaching 33°C (91°F). Expect about 115 mm (4.5 in) of precipitation spread over 10 days, accompanied by an average humidity of 81%. Whether you’re exploring the outdoors or lounging indoors, be prepared for a diverse climate experience!

September Temperature in New Hope

In September in New Hope, the average temperature is 18°C (64°F). Maximums can reach 33°C (91°F), and minimums can be as low as 2°C (35°F). It's advisable to pack layers to accommodate the warm days and cooler nights when traveling during this time.

September Weather in New Hope: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in New Hope, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In New Hope, September typically has an average temperature of 18°C (64°F), with highs reaching up to 33°C (91°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec161733435972757164483323
Data source: Temperature data for New Hope 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 New Hope

In New Hope in September, the precipitation amount is 115 mm (4.5 in) over a span of 10 days.

September Precipitation Trends in New Hope

The chart displays monthly precipitation patterns in New Hope, 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 New Hope, September typically receives around 115 mm (4.5 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec2631568612084101146115973447
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in New Hope

In New Hope in September, humidity is 81%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making travel both refreshing and slightly stifling at the same time.

September Average Humidity in New Hope

This chart illustrates the average monthly humidity levels in New Hope, 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 New Hope is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%90%85%84%78%80%81%81%81%84%88%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in New Hope

In New Hope in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in New Hope.

Maximum UV Index Levels in New Hope for September

The chart shows the monthly maximum UV Index (UVI) for New Hope 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 New Hope typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910997532
Data source: New Hope 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 New Hope Compares to Other Months

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

This table compares monthly weather conditions in New Hope, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (17°F)26 mm (1.0 inches)87%low
February Weather-9°C (17°F)31 mm (1.2 inches)90%moderate
March Weather0°C (33°F)56 mm (2.2 inches)85%moderate
April Weather6°C (43°F)86 mm (3.4 inches)84%high
May Weather15°C (59°F)120 mm (4.7 inches)78%very high
June Weather22°C (72°F)84 mm (3.3 inches)80%very high
July Weather24°C (75°F)101 mm (4.0 inches)81%very high
August Weather22°C (71°F)146 mm (5.7 inches)81%very high
September Weather18°C (64°F)115 mm (4.5 inches)81%high
October Weather9°C (48°F)97 mm (3.8 inches)84%moderate
November Weather1°C (33°F)34 mm (1.4 inches)88%moderate
December Weather-5°C (23°F)47 mm (1.9 inches)84%low

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