September Weather in Troy, United States

Last updated: June 24, 2025

In Troy, United States during September, the average temperature hovers around 25°C (78°F), with minimums dropping to 12°C (54°F) and maximums soaring up to 37°C (99°F). Expect about 111 mm (4.4 in) of precipitation spread over 11 days, contributing to a noticeable average humidity of 79%. Enjoy the tropical vibe!

September Temperature in Troy

In September in Troy, the average temperature is 25°C (78°F). Maximums can reach 37°C (99°F) and minimums can be as low as 12°C (54°F). This climate makes Troy an ideal destination for travelers seeking warm weather and a pleasant getaway.

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

The chart illustrates September temperature patterns in Troy, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Troy, September typically has an average temperature of 25°C (78°F), with highs reaching up to 37°C (99°F) and lows dropping to around 12°C (54°F).

Data source: Temperature data for Troy generated using information from the Copernicus Climate Change Service.

September Precipitation in Troy

In Troy in September, the precipitation amount is 111 mm (4.4 in), occurring over the course of 11 days.

September Precipitation Trends in Troy

The chart displays monthly precipitation patterns in Troy, 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 Troy, September typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Troy

In Troy in September humidity is 79%. With an average temperature of 25°C (78°F), this humidity feels like a warm, heavy blanket enveloping you, making outdoor activities less inviting and requiring frequent breaks to stay refreshed.

September Average Humidity in Troy

This chart illustrates the average monthly humidity levels in Troy, 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 Troy is approximately 79%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Troy

In Troy 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 Troy.

Maximum UV Index Levels in Troy for September

The chart shows the monthly maximum UV Index (UVI) for Troy 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 Troy typically reaches 10, which falls under the very high exposure category.

Data source: Troy 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 Troy Compares to Other Months

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

This table compares monthly weather conditions in Troy, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (50°F)	106 mm (4.2 inches)	83%	moderate
February Weather	14°C (57°F)	116 mm (4.6 inches)	82%	very high
March Weather	16°C (61°F)	89 mm (3.5 inches)	79%	very high
April Weather	19°C (66°F)	128 mm (5.0 inches)	77%	very high
May Weather	23°C (74°F)	126 mm (5.0 inches)	74%	extreme
June Weather	26°C (79°F)	124 mm (4.9 inches)	70%	extreme
July Weather	27°C (81°F)	105 mm (4.1 inches)	78%	extreme
August Weather	27°C (81°F)	125 mm (4.9 inches)	78%	extreme
September Weather	25°C (78°F)	111 mm (4.4 inches)	79%	very high
October Weather	21°C (70°F)	113 mm (4.5 inches)	74%	very high
November Weather	14°C (57°F)	63 mm (2.5 inches)	83%	high
December Weather	12°C (53°F)	129 mm (5.1 inches)	86%	moderate