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September Weather in Celina, United States

Last updated: June 24, 2025

In September, the average temperature in Celina, United States is a warm 23°C (73°F), making it a pleasant time to visit. Expect a minimum temperature of around 8°C (47°F) and a maximum of 36°C (97°F). This month typically sees about 124 mm (4.9 in) of precipitation over 9 days, contributing to an average humidity of 71%.

September Temperature in Celina

In September in Celina, the average temperature is 23°C (73°F). The maximum can reach 36°C (97°F) and the minimum can be as low as 8°C (47°F). This variety in temperatures makes Celina a great destination for travelers seeking both warm days and cooler nights.

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

The chart illustrates September temperature patterns in Celina, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Celina, September typically has an average temperature of 23°C (73°F), with highs reaching up to 36°C (97°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec404552586975797773634845
Data source: Temperature data for Celina 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 Celina

In Celina in September, the precipitation amount is 124 mm (4.9 in) over the course of 9 days.

September Precipitation Trends in Celina

The chart displays monthly precipitation patterns in Celina, 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 Celina, September typically receives around 124 mm (4.9 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec10318715514612014111111912413381148
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Celina

In Celina in September humidity is 71%. With an average temperature of 23°C (73°F), this humidity feels like a warm, sticky embrace, making outdoor exploration slightly uncomfortable but still manageable if you stay hydrated and plan for breaks in shaded areas.

September Average Humidity in Celina

This chart illustrates the average monthly humidity levels in Celina, 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 Celina is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%82%83%83%80%74%71%78%88%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Celina

In Celina 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 Celina.

Maximum UV Index Levels in Celina for September

The chart shows the monthly maximum UV Index (UVI) for Celina 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 Celina typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
Data source: Celina 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 Celina Compares to Other Months

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

This table compares monthly weather conditions in Celina, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (40°F)103 mm (4.0 inches)87%moderate
February Weather7°C (45°F)187 mm (7.4 inches)86%high
March Weather11°C (52°F)155 mm (6.1 inches)86%high
April Weather15°C (59°F)146 mm (5.8 inches)82%very high
May Weather21°C (70°F)120 mm (4.7 inches)82%very high
June Weather24°C (76°F)141 mm (5.5 inches)83%extreme
July Weather26°C (80°F)111 mm (4.4 inches)80%extreme
August Weather25°C (78°F)119 mm (4.7 inches)74%very high
September Weather23°C (73°F)124 mm (4.9 inches)71%very high
October Weather17°C (63°F)133 mm (5.2 inches)78%high
November Weather9°C (49°F)81 mm (3.2 inches)88%moderate
December Weather7°C (45°F)147 mm (5.8 inches)88%moderate

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