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September Weather in Ramona, United States

Last updated: June 24, 2025

The average temperature in Ramona, United States during September is a pleasant 24°C (76°F). However, be prepared for temperature fluctuations, as it can dip to a minimum of 7°C (45°F) and soar to a maximum of 36°C (97°F). Expect 91 mm (3.6 in) of precipitation over 7 days, with average humidity at 67%, making for a typically humid experience.

September Temperature in Ramona

In September in Ramona, the average temperature is 24°C (76°F), with maximums reaching up to 36°C (97°F) and minimums dropping as low as 7°C (45°F). This diverse temperature range makes it essential to pack for both warm days and cooler evenings while traveling.

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 24°C (76°F), with highs reaching up to 36°C (97°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec384052596979828076614943
Data source: Temperature data for Ramona generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Ramona

In Ramona in September, the precipitation amount is 91 mm (3.6 in) over a span of 7 days.

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 91 mm (3.6 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec695611712020710188112911344439
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ramona

In Ramona in September humidity is 67%. With an average temperature of 24°C (76°F), this humidity feels like a warm, steamy embrace, making travel slightly more challenging as you navigate through the thick air.

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 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%76%71%74%83%83%81%73%67%72%82%85%
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 is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, 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 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
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.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)69 mm (2.7 inches)77%moderate
February Weather4°C (40°F)56 mm (2.2 inches)76%high
March Weather11°C (53°F)117 mm (4.6 inches)71%high
April Weather15°C (59°F)120 mm (4.7 inches)73%very high
May Weather21°C (69°F)207 mm (8.1 inches)83%very high
June Weather26°C (79°F)101 mm (4.0 inches)83%extreme
July Weather28°C (83°F)88 mm (3.5 inches)81%extreme
August Weather27°C (80°F)112 mm (4.4 inches)73%very high
September Weather24°C (76°F)91 mm (3.6 inches)67%very high
October Weather16°C (62°F)134 mm (5.3 inches)72%high
November Weather10°C (49°F)44 mm (1.7 inches)82%moderate
December Weather6°C (43°F)39 mm (1.5 inches)85%moderate

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