September Weather in Iraan, United States

Last updated: June 24, 2025

In September, the average temperature in Iraan, United States hovers around 25°C (78°F). However, visitors should be prepared for a range, with minimums dipping to 8°C (46°F) and maximums soaring up to 39°C (102°F). During this month, expect about 39 mm (1.5 in) of precipitation spread over 5 days, and a comfortable average humidity level of 67%.

September Temperature in Iraan

In September in Iraan, the average temperature is 25°C (78°F). Maximums can reach 39°C (102°F) and minimums can drop to as low as 8°C (46°F). It's advisable to pack layers to prepare for a range of temperatures while enjoying your travels.

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

The chart illustrates September temperature patterns in Iraan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iraan, September typically has an average temperature of 25°C (78°F), with highs reaching up to 39°C (102°F) and lows dropping to around 8°C (46°F).

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

September Precipitation in Iraan

In Iraan in September, the precipitation amount is 39 mm (1.5 in) spread over a duration of 5 days.

September Precipitation Trends in Iraan

The chart displays monthly precipitation patterns in Iraan, 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 Iraan, September typically receives around 39 mm (1.5 inches) of precipitation spread over approximately 5 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 Iraan

In Iraan in September humidity is 67%. With an average temperature of 25°C (78°F), this humidity feels like traveling through a warm, heavy blanket that wraps around you, making outdoor activities feel a bit more strenuous, but also enveloping you in a tropical embrace that can be refreshing if you take breaks in the shade.

September Average Humidity in Iraan

This chart illustrates the average monthly humidity levels in Iraan, 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 Iraan is approximately 67%, 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 Iraan

In Iraan in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Iraan.

Maximum UV Index Levels in Iraan for September

The chart shows the monthly maximum UV Index (UVI) for Iraan 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 Iraan typically reaches 11, which falls under the extreme exposure category.

Data source: Iraan 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 Iraan Compares to Other Months

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

This table compares monthly weather conditions in Iraan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (47°F)	18 mm (0.7 inches)	74%	moderate
February Weather	11°C (51°F)	17 mm (0.7 inches)	74%	very high
March Weather	16°C (62°F)	34 mm (1.3 inches)	68%	very high
April Weather	20°C (68°F)	37 mm (1.5 inches)	70%	extreme
May Weather	25°C (77°F)	59 mm (2.3 inches)	77%	extreme
June Weather	28°C (83°F)	40 mm (1.6 inches)	76%	extreme
July Weather	29°C (85°F)	17 mm (0.7 inches)	66%	extreme
August Weather	29°C (84°F)	26 mm (1.0 inches)	60%	extreme
September Weather	25°C (78°F)	39 mm (1.5 inches)	67%	extreme
October Weather	20°C (68°F)	31 mm (1.2 inches)	72%	very high
November Weather	14°C (58°F)	12 mm (0.5 inches)	83%	high
December Weather	10°C (51°F)	18 mm (0.7 inches)	85%	moderate