September Weather in Smiley, United States

Last updated: June 24, 2025

In Smiley, United States, the average temperature in September is a pleasant 28°C (82°F). Expect a climate that can shift from a cool 12°C (54°F) to a sweltering 39°C (102°F). With 107 mm (4.2 in) of precipitation spread over 11 days, you might want to include an umbrella in your plans. The average humidity hovers around 65%, adding a touch of warmth to the air. Prepare for an adventurous month!

September Temperature in Smiley

In September in Smiley, the average temperature is 28°C (82°F), with maximums reaching up to 39°C (102°F) and minimums dipping as low as 12°C (54°F). This makes Smiley an ideal destination for travelers seeking warm weather, but it's wise to pack layers for the cooler evenings.

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

The chart illustrates September temperature patterns in Smiley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Smiley, September typically has an average temperature of 28°C (82°F), with highs reaching up to 39°C (102°F) and lows dropping to around 12°C (54°F).

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

September Precipitation in Smiley

In Smiley in September, the precipitation amount is 107 mm (4.2 in) spread over a period of 11 days.

September Precipitation Trends in Smiley

The chart displays monthly precipitation patterns in Smiley, 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 Smiley, September typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 11 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Smiley

In Smiley in September, humidity is 65%. With an average temperature of 28°C (82°F), this humidity feels like a warm, sticky embrace that can make outdoor activities feel a bit more exhausting, so staying hydrated and taking breaks in the shade is essential for a comfortable travel experience.

September Average Humidity in Smiley

This chart illustrates the average monthly humidity levels in Smiley, 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 Smiley is approximately 65%, 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 Smiley

In Smiley 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 Smiley.

Maximum UV Index Levels in Smiley for September

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

Data source: Smiley 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 Smiley Compares to Other Months

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

This table compares monthly weather conditions in Smiley, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (55°F)	43 mm (1.7 inches)	79%	moderate
February Weather	14°C (57°F)	53 mm (2.1 inches)	79%	very high
March Weather	19°C (66°F)	55 mm (2.2 inches)	74%	very high
April Weather	22°C (71°F)	79 mm (3.1 inches)	76%	extreme
May Weather	26°C (79°F)	113 mm (4.4 inches)	81%	extreme
June Weather	29°C (84°F)	94 mm (3.7 inches)	76%	extreme
July Weather	30°C (86°F)	80 mm (3.2 inches)	66%	extreme
August Weather	30°C (87°F)	81 mm (3.2 inches)	58%	extreme
September Weather	28°C (82°F)	107 mm (4.2 inches)	65%	extreme
October Weather	23°C (73°F)	67 mm (2.6 inches)	74%	very high
November Weather	17°C (63°F)	53 mm (2.1 inches)	81%	high
December Weather	14°C (58°F)	58 mm (2.3 inches)	86%	moderate