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September Weather in Liberty City, United States

Last updated: June 24, 2025

In September, the average temperature in Liberty City, United States is a warm 26°C (79°F). Expect a wide range, with minimums dipping to 10°C (50°F) and maximums soaring up to 39°C (102°F). Be prepared for some rainfall, as 95 mm (3.8 in) of precipitation typically falls over 9 days. With an average humidity of 65%, it’s an ideal time to enjoy the climate while staying hydrated!

September Temperature in Liberty City

In September in Liberty City, the average temperature is 26°C (79°F). Maximums can reach 39°C (102°F), and minimums can be as low as 10°C (50°F). Be prepared for a wide range of temperatures, making it essential to pack for both warm days and cooler nights when traveling.

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

The chart illustrates September temperature patterns in Liberty City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Liberty City, September typically has an average temperature of 26°C (79°F), with highs reaching up to 39°C (102°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec485060657481848479685752
Data source: Temperature data for Liberty 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 Liberty City

In Liberty City in September, the total precipitation amount is 95 mm (3.8 in) over the course of 9 days.

September Precipitation Trends in Liberty City

The chart displays monthly precipitation patterns in Liberty 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 Liberty City, September typically receives around 95 mm (3.8 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec11214712814515211090759510062120
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Liberty City

In Liberty City in September, humidity is 65%. With an average temperature of 26°C (79°F), this humidity feels like a warm, enveloping blanket, making travel quite sticky and uncomfortable.

September Average Humidity in Liberty City

This chart illustrates the average monthly humidity levels in Liberty 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 Liberty City is approximately 65%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%78%78%81%78%73%66%65%72%82%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Liberty City

In Liberty City in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Liberty City.

Maximum UV Index Levels in Liberty City for September

The chart shows the monthly maximum UV Index (UVI) for Liberty 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 Liberty City typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101111111110864
Data source: Liberty 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 Liberty City Compares to Other Months

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

This table compares monthly weather conditions in Liberty City, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)112 mm (4.4 inches)80%moderate
February Weather10°C (51°F)147 mm (5.8 inches)79%high
March Weather16°C (61°F)128 mm (5.0 inches)78%very high
April Weather18°C (65°F)145 mm (5.7 inches)78%very high
May Weather23°C (74°F)152 mm (6.0 inches)81%extreme
June Weather27°C (81°F)110 mm (4.3 inches)78%extreme
July Weather29°C (84°F)90 mm (3.5 inches)73%extreme
August Weather29°C (84°F)75 mm (2.9 inches)66%extreme
September Weather26°C (79°F)95 mm (3.8 inches)65%very high
October Weather20°C (69°F)100 mm (4.0 inches)72%very high
November Weather14°C (57°F)62 mm (2.4 inches)82%high
December Weather11°C (53°F)120 mm (4.7 inches)87%moderate

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