September Weather in Iona, United States

Last updated: June 24, 2025

In Iona, United States, the average temperature in September hovers around 28°C (82°F), with a pleasant minimum of 23°C (74°F) and a maximum reaching up to 33°C (92°F). Expect an average precipitation of 169 mm (6.7 in) spread across about 20 days, contributing to a high average humidity of 83%. Perfect for those who enjoy a tropical atmosphere!

September Temperature in Iona

In September in Iona, the average temperature is 28°C (82°F). Maximum can reach 33°C (92°F) and minimum can be as low as 23°C (74°F). This pleasant climate makes Iona an ideal destination for travelers seeking warmth and sunshine.

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

The chart illustrates September temperature patterns in Iona, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iona, September typically has an average temperature of 28°C (82°F), with highs reaching up to 33°C (92°F) and lows dropping to around 23°C (74°F).

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

September Precipitation in Iona

In Iona, in September, the total precipitation amount is 169 mm (6.7 in) spread over 20 days.

September Precipitation Trends in Iona

The chart displays monthly precipitation patterns in Iona, 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 Iona, September typically receives around 169 mm (6.7 inches) of precipitation spread over approximately 20 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 Iona

In Iona in September humidity is 83%. With an average temperature of 28°C (82°F), this humidity feels like stepping into a warm, thick blanket, making travel languid and drenched in sweat.

September Average Humidity in Iona

This chart illustrates the average monthly humidity levels in Iona, 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 Iona is approximately 83%, 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 Iona

In Iona 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 Iona.

Maximum UV Index Levels in Iona for September

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

Data source: Iona 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 Iona Compares to Other Months

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

This table compares monthly weather conditions in Iona, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	18°C (65°F)	36 mm (1.4 inches)	83%	high
February Weather	21°C (69°F)	36 mm (1.4 inches)	80%	very high
March Weather	21°C (71°F)	22 mm (0.9 inches)	75%	very high
April Weather	24°C (76°F)	42 mm (1.7 inches)	68%	extreme
May Weather	26°C (79°F)	122 mm (4.8 inches)	65%	extreme
June Weather	27°C (82°F)	170 mm (6.7 inches)	73%	extreme
July Weather	28°C (83°F)	195 mm (7.7 inches)	77%	extreme
August Weather	28°C (83°F)	206 mm (8.1 inches)	80%	extreme
September Weather	28°C (82°F)	169 mm (6.7 inches)	83%	extreme
October Weather	26°C (80°F)	76 mm (3.0 inches)	83%	very high
November Weather	23°C (73°F)	44 mm (1.7 inches)	83%	very high
December Weather	20°C (68°F)	52 mm (2.1 inches)	84%	high