nomadseason

September Weather in Long Hill, United States

Last updated: June 24, 2025

In Long Hill, United States, the average temperature in September hovers around 20°C (68°F), providing a pleasant atmosphere for locals and visitors alike. Temperatures can dip to a cool 10°C (51°F) or rise to a comfortable 27°C (82°F). Be prepared for some rain, as 101 mm (4.0 in) of precipitation typically falls over 9 days, complemented by an average humidity level of 75%. Enjoy the vibrant climate!

September Temperature in Long Hill

In September in Long Hill, the average temperature is 20°C (68°F), with maximums reaching 27°C (82°F) and minimums dropping to as low as 10°C (51°F). This pleasant climate makes it an ideal time for travelers looking to explore and enjoy outdoor activities.

September Weather in Long Hill: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Long Hill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Long Hill, September typically has an average temperature of 20°C (68°F), with highs reaching up to 27°C (82°F) and lows dropping to around 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec353639465564727268604840
Data source: Temperature data for Long Hill 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 Long Hill

In Long Hill in September, the total precipitation amount is 101 mm (4.0 in), occurring over a span of 9 days.

September Precipitation Trends in Long Hill

The chart displays monthly precipitation patterns in Long Hill, 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 Long Hill, September typically receives around 101 mm (4.0 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec8310910813611984115101101157113141
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Long Hill

In Long Hill in September, humidity is 75%. With an average temperature of 20°C (68°F), this humidity feels like a warm, muggy embrace that can leave travelers feeling sticky and exhausted.

September Average Humidity in Long Hill

This chart illustrates the average monthly humidity levels in Long Hill, 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 Long Hill is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%82%79%75%78%76%76%76%75%80%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Long Hill

In Long Hill 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 Long Hill.

Maximum UV Index Levels in Long Hill for September

The chart shows the monthly maximum UV Index (UVI) for Long Hill 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 Long Hill typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35689101098642
Data source: Long Hill 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 Long Hill Compares to Other Months

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

This table compares monthly weather conditions in Long Hill, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)83 mm (3.3 inches)84%moderate
February Weather2°C (36°F)109 mm (4.3 inches)84%moderate
March Weather4°C (39°F)108 mm (4.3 inches)82%high
April Weather8°C (47°F)136 mm (5.3 inches)79%very high
May Weather13°C (55°F)119 mm (4.7 inches)75%very high
June Weather18°C (64°F)84 mm (3.3 inches)78%very high
July Weather22°C (72°F)115 mm (4.5 inches)76%very high
August Weather22°C (73°F)101 mm (4.0 inches)76%very high
September Weather20°C (68°F)101 mm (4.0 inches)75%very high
October Weather16°C (60°F)157 mm (6.2 inches)75%high
November Weather9°C (49°F)113 mm (4.4 inches)80%moderate
December Weather4°C (40°F)141 mm (5.6 inches)80%low

Compare Long Hill's Climate with Cities Worldwide