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September Weather in Rosalia, United States

Last updated: June 24, 2025

In Rosalia, United States, the average temperature in September hovers around 17°C (63°F), with minimums dipping to a cool 2°C (35°F) and maximums reaching a warm 35°C (95°F). Expect an average precipitation of 27 mm (1.1 in) over about 4 days, and a comfortable average humidity of 62%.

September Temperature in Rosalia

In September, in Rosalia, the average temperature is 17°C (63°F). The maximum can reach 35°C (95°F), while the minimum can drop as low as 2°C (35°F). Be prepared for varying weather conditions to make the most of your travels.

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

The chart illustrates September temperature patterns in Rosalia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rosalia, September typically has an average temperature of 17°C (63°F), with highs reaching up to 35°C (95°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec333240475765747362483933
Data source: Temperature data for Rosalia 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 Rosalia

In Rosalia in September, the total precipitation amount is 27 mm (1.1 in) over a span of 4 days.

September Precipitation Trends in Rosalia

The chart displays monthly precipitation patterns in Rosalia, 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 Rosalia, September typically receives around 27 mm (1.1 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec7379635755253928618778
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Rosalia

In Rosalia in September humidity is 62%. With an average temperature of 17°C (63°F), this humidity feels like a refreshing embrace, making it pleasant for traveling as long as you stay hydrated and take breaks in the shade.

September Average Humidity in Rosalia

This chart illustrates the average monthly humidity levels in Rosalia, 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 Rosalia is approximately 62%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%89%87%84%78%78%77%64%62%79%87%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Rosalia

In Rosalia in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Rosalia.

Maximum UV Index Levels in Rosalia for September

The chart shows the monthly maximum UV Index (UVI) for Rosalia 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 Rosalia typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457891097532
Data source: Rosalia 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 Rosalia Compares to Other Months

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

This table compares monthly weather conditions in Rosalia, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)72 mm (2.9 inches)89%low
February Weather0°C (32°F)79 mm (3.1 inches)89%moderate
March Weather5°C (41°F)63 mm (2.5 inches)87%moderate
April Weather9°C (48°F)57 mm (2.2 inches)84%high
May Weather14°C (57°F)55 mm (2.1 inches)77%very high
June Weather18°C (65°F)25 mm (1.0 inches)78%very high
July Weather23°C (74°F)3 mm (0.1 inches)77%very high
August Weather23°C (73°F)9 mm (0.4 inches)64%very high
September Weather17°C (63°F)27 mm (1.1 inches)62%high
October Weather9°C (48°F)61 mm (2.4 inches)79%moderate
November Weather4°C (40°F)87 mm (3.4 inches)87%moderate
December Weather0°C (33°F)78 mm (3.1 inches)90%low

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