September Weather in Homer, United States

Last updated: June 24, 2025

In September, the average temperature in Homer, United States hovers around 26°C (78°F). While the mercury can dip as low as 12°C (53°F), it can also soar to a sizzling 39°C (102°F). This month brings an average precipitation of 97 mm (3.8 in) over the course of 7 days, and with an average humidity of 63%, the air can feel quite vibrant. Get ready for a dynamic month in Homer!

September Temperature in Homer

In September in Homer, the average temperature is 26°C (78°F). The maximum can reach 39°C (102°F), while the minimum can dip as low as 12°C (53°F). This makes it a great time for travelers to enjoy warm outdoor activities while also being prepared for cooler evenings.

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

The chart illustrates September temperature patterns in Homer, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Homer, September typically has an average temperature of 26°C (78°F), with highs reaching up to 39°C (102°F) and lows dropping to around 12°C (53°F).

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

September Precipitation in Homer

In Homer in September, the precipitation amount is 97 mm (3.8 in) over the course of 7 days.

September Precipitation Trends in Homer

The chart displays monthly precipitation patterns in Homer, 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 Homer, September typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 7 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 Homer

In Homer in September humidity is 63%. With an average temperature of 26°C (78°F), this humidity feels like a warm, tropical embrace, making outdoor activities pleasantly refreshing yet slightly sticky, perfect for leisurely strolls and beachside adventures.

September Average Humidity in Homer

This chart illustrates the average monthly humidity levels in Homer, 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 Homer is approximately 63%, 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 Homer

In Homer 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 Homer.

Maximum UV Index Levels in Homer for September

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

Data source: Homer 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 Homer Compares to Other Months

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

This table compares monthly weather conditions in Homer, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (48°F)	122 mm (4.8 inches)	82%	moderate
February Weather	11°C (51°F)	167 mm (6.6 inches)	80%	high
March Weather	16°C (61°F)	158 mm (6.2 inches)	78%	very high
April Weather	18°C (65°F)	196 mm (7.7 inches)	79%	extreme
May Weather	23°C (74°F)	145 mm (5.7 inches)	81%	extreme
June Weather	27°C (81°F)	116 mm (4.6 inches)	77%	extreme
July Weather	28°C (83°F)	98 mm (3.9 inches)	72%	extreme
August Weather	28°C (83°F)	106 mm (4.2 inches)	65%	extreme
September Weather	26°C (78°F)	97 mm (3.8 inches)	63%	very high
October Weather	20°C (68°F)	122 mm (4.8 inches)	70%	very high
November Weather	13°C (55°F)	78 mm (3.1 inches)	82%	high
December Weather	11°C (52°F)	130 mm (5.1 inches)	88%	moderate