nomadseason

September Weather in Altamont, United States

Last updated: June 24, 2025

In September, the average temperature in Altamont, United States is a pleasant 22°C (72°F). Expect a range where temperatures can dip to a cool 8°C (46°F) and soar up to a warm 35°C (95°F). This month typically sees about 116 mm (4.6 in) of precipitation spread over 10 days, with an average humidity level of 64%. Perfect for planning your activities in this engaging locale!

September Temperature in Altamont

In September in Altamont, the average temperature is 22°C (72°F). Maximums can reach 35°C (95°F), and minimums can be as low as 8°C (46°F). This range makes it an ideal time for travelers to enjoy a mix of warm days and cooler evenings, perfect for exploring the area comfortably.

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

The chart illustrates September temperature patterns in Altamont, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Altamont, September typically has an average temperature of 22°C (72°F), with highs reaching up to 35°C (95°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec404652586874777672624845
Data source: Temperature data for Altamont 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 Altamont

In Altamont in September, the total precipitation amount is 116 mm (4.6 in) over a span of 10 days.

September Precipitation Trends in Altamont

The chart displays monthly precipitation patterns in Altamont, 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 Altamont, September typically receives around 116 mm (4.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec10817818315712712712614411612474145
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Altamont

In Altamont in September humidity is 64%. With an average temperature of 22°C (72°F), this humidity feels like a warm, tropical embrace, making travel enjoyable yet slightly sticky, prompting visitors to seek shade or refreshing beverages while exploring the vibrant surroundings.

September Average Humidity in Altamont

This chart illustrates the average monthly humidity levels in Altamont, 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 Altamont is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%85%82%83%82%78%67%64%75%87%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Altamont

In Altamont in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Altamont.

Maximum UV Index Levels in Altamont for September

The chart shows the monthly maximum UV Index (UVI) for Altamont 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 Altamont typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109753
Data source: Altamont 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 Altamont Compares to Other Months

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

This table compares monthly weather conditions in Altamont, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (40°F)108 mm (4.2 inches)87%moderate
February Weather8°C (46°F)178 mm (7.0 inches)87%high
March Weather11°C (52°F)183 mm (7.2 inches)85%very high
April Weather15°C (58°F)157 mm (6.2 inches)82%very high
May Weather20°C (68°F)126 mm (5.0 inches)83%extreme
June Weather23°C (74°F)127 mm (5.0 inches)82%extreme
July Weather25°C (78°F)126 mm (5.0 inches)78%extreme
August Weather24°C (76°F)144 mm (5.7 inches)67%very high
September Weather22°C (72°F)116 mm (4.6 inches)64%very high
October Weather17°C (62°F)124 mm (4.9 inches)74%high
November Weather9°C (48°F)74 mm (2.9 inches)87%moderate
December Weather7°C (45°F)145 mm (5.7 inches)88%moderate

Compare Altamont's Climate with Cities Worldwide