September Weather in Ramona, United States

Last updated: June 24, 2025

In September, the average temperature in Ramona, United States hovers around 23°C (74°F). Expect a minimum of 9°C (48°F) and a maximum soaring up to 43°C (109°F). You can also anticipate a modest precipitation of 6 mm (0.2 in) spread over 1 day, with an average humidity of 52%. Enjoy the warm, varied climate!

September Temperature in Ramona

In September in Ramona, the average temperature is 23°C (74°F), with maximums reaching up to 43°C (109°F) and minimums dipping as low as 9°C (48°F). This diverse temperature range makes Ramona an ideal destination for travelers seeking both warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Ramona, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ramona, September typically has an average temperature of 23°C (74°F), with highs reaching up to 43°C (109°F) and lows dropping to around 9°C (48°F).

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

September Precipitation in Ramona

In Ramona in September, the precipitation amount is 6 mm (0.2 in) over the course of 1 day.

September Precipitation Trends in Ramona

The chart displays monthly precipitation patterns in Ramona, 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 Ramona, September typically receives around 6 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 Ramona

In Ramona in September humidity is 52%. With an average temperature of 23°C (74°F), this humidity feels like a gentle embrace, making for comfortable travel as you stroll through the sights, though a slight stickiness might warrant a refreshing drink on warmer afternoons.

September Average Humidity in Ramona

This chart illustrates the average monthly humidity levels in Ramona, 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 Ramona 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 Ramona

In Ramona 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 Ramona.

Maximum UV Index Levels in Ramona for September

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

Data source: Ramona 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 Ramona Compares to Other Months

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

This table compares monthly weather conditions in Ramona, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (52°F)	66 mm (2.6 inches)	72%	moderate
February Weather	11°C (52°F)	90 mm (3.5 inches)	77%	high
March Weather	12°C (54°F)	71 mm (2.8 inches)	67%	very high
April Weather	15°C (60°F)	30 mm (1.2 inches)	56%	extreme
May Weather	17°C (62°F)	30 mm (1.2 inches)	46%	extreme
June Weather	21°C (70°F)	3 mm (0.1 inches)	48%	extreme
July Weather	25°C (76°F)	7 mm (0.3 inches)	46%	extreme
August Weather	25°C (77°F)	4 mm (0.2 inches)	42%	extreme
September Weather	23°C (74°F)	6 mm (0.2 inches)	52%	extreme
October Weather	19°C (67°F)	15 mm (0.6 inches)	58%	very high
November Weather	15°C (60°F)	36 mm (1.4 inches)	66%	moderate
December Weather	11°C (52°F)	67 mm (2.6 inches)	74%	moderate