September Weather in Lake Elsinore, United States

Last updated: June 24, 2025

In September, the average temperature in Lake Elsinore, United States hovers around 25°C (76°F). While some days may bring a refreshing minimum of 11°C (53°F), others can soar to a scorching 46°C (116°F). Expect a light precipitation of about 5 mm (0.2 in) over 1 day, with an average humidity of 52% that adds a touch of warmth to the air.

September Temperature in Lake Elsinore

In September in Lake Elsinore, the average temperature is 25°C (76°F). Maximum temperatures can reach 46°C (116°F), while minimums can drop to as low as 11°C (53°F). Make sure to pack for a range of temperatures to fully enjoy your visit!

September Weather in Lake Elsinore: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Lake Elsinore, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lake Elsinore, September typically has an average temperature of 25°C (76°F), with highs reaching up to 46°C (116°F) and lows dropping to around 11°C (53°F).

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

September Precipitation in Lake Elsinore

In Lake Elsinore in September, the precipitation amount is 5 mm (0.2 in) over a duration of 1 day.

September Precipitation Trends in Lake Elsinore

The chart displays monthly precipitation patterns in Lake Elsinore, 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 Lake Elsinore, September typically receives around 5 mm (0.2 inches) of precipitation spread over approximately 1 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 Lake Elsinore

In Lake Elsinore in September humidity is 52%. With an average temperature of 25°C (76°F), this humidity feels like a mild embrace, making travel enjoyable yet slightly sticky, as the air wraps gently around you while exploring the sights.

September Average Humidity in Lake Elsinore

This chart illustrates the average monthly humidity levels in Lake Elsinore, 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 Lake Elsinore is approximately 52%, 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 Lake Elsinore

In Lake Elsinore 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 Lake Elsinore.

Maximum UV Index Levels in Lake Elsinore for September

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

Data source: Lake Elsinore 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 Lake Elsinore Compares to Other Months

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

This table compares monthly weather conditions in Lake Elsinore, 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 (54°F)	79 mm (3.1 inches)	72%	moderate
February Weather	12°C (54°F)	76 mm (3.0 inches)	77%	high
March Weather	14°C (57°F)	88 mm (3.5 inches)	67%	very high
April Weather	17°C (63°F)	36 mm (1.4 inches)	56%	very high
May Weather	18°C (66°F)	23 mm (0.9 inches)	46%	extreme
June Weather	23°C (73°F)	2 mm (0.1 inches)	48%	extreme
July Weather	26°C (80°F)	3 mm (0.1 inches)	46%	extreme
August Weather	27°C (80°F)	2 mm (0.1 inches)	42%	extreme
September Weather	25°C (76°F)	5 mm (0.2 inches)	52%	very high
October Weather	20°C (69°F)	13 mm (0.5 inches)	58%	high
November Weather	16°C (62°F)	35 mm (1.4 inches)	66%	moderate
December Weather	12°C (54°F)	77 mm (3.0 inches)	74%	moderate