nomadseason

September Weather in North Castle, United States

Last updated: June 24, 2025

In September, the average temperature in North Castle, United States is a comfortable 20°C (68°F). However, you can expect a range, with minimums dipping to 6°C (43°F) and maximums soaring to 33°C (91°F). During this month, 114 mm (4.5 in) of precipitation is anticipated over 9 days, contributing to an average humidity of around 68%. Whether you're planning outdoor activities or cozy indoor days, this climate offers a blend of warmth and refreshing showers!

September Temperature in North Castle

In September in North Castle, the average temperature is 20°C (68°F). Maximum temperatures can reach 33°C (91°F) while minimums can drop as low as 6°C (43°F). This makes North Castle a great destination for travelers looking to enjoy mild weather with the possibility of warm days and cool nights.

September Weather in North Castle: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in North Castle, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In North Castle, September typically has an average temperature of 20°C (68°F), with highs reaching up to 33°C (91°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec313439506070757467574436
Data source: Temperature data for North Castle generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in North Castle

In North Castle in September, the precipitation amount is 114 mm (4.5 in) over the course of 9 days.

September Precipitation Trends in North Castle

The chart displays monthly precipitation patterns in North Castle, 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 North Castle, September typically receives around 114 mm (4.5 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec70100901191169313611611413990109
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in North Castle

In North Castle in September humidity is 68%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making it ideal for leisurely strolls while also prompting travelers to stay hydrated and seek out refreshing breaks from the heat.

September Average Humidity in North Castle

This chart illustrates the average monthly humidity levels in North Castle, 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 North Castle is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in North Castle

In North Castle 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 North Castle.

Maximum UV Index Levels in North Castle for September

The chart shows the monthly maximum UV Index (UVI) for North Castle 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 North Castle typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35681010998642
Data source: North Castle 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 North Castle Compares to Other Months

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

This table compares monthly weather conditions in North Castle, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)70 mm (2.7 inches)84%moderate
February Weather1°C (34°F)100 mm (3.9 inches)82%moderate
March Weather4°C (40°F)90 mm (3.5 inches)81%high
April Weather10°C (50°F)119 mm (4.7 inches)78%very high
May Weather15°C (60°F)116 mm (4.6 inches)69%very high
June Weather21°C (70°F)93 mm (3.7 inches)69%very high
July Weather24°C (76°F)136 mm (5.4 inches)62%very high
August Weather23°C (74°F)116 mm (4.6 inches)65%very high
September Weather20°C (68°F)114 mm (4.5 inches)68%very high
October Weather14°C (58°F)139 mm (5.5 inches)74%high
November Weather7°C (44°F)90 mm (3.5 inches)82%moderate
December Weather2°C (36°F)109 mm (4.3 inches)80%low

Compare North Castle's Climate with Cities Worldwide