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September Weather in Riverview, United States

Last updated: June 24, 2025

In September, the average temperature in Riverview, United States hovers around 23°C (73°F), making it a pleasant time to visit. However, be prepared for temperature variations, as it can dip to a cool 8°C (47°F) or soar to a warm 34°C (94°F). With an average humidity of 72% and precipitation amounting to 59 mm (2.3 in) over 7 days, visitors should be ready for occasional showers amidst the warm, inviting climate.

September Temperature in Riverview

In September in Riverview, the average temperature is 23°C (73°F), with maximums reaching 34°C (94°F) and minimums dropping to as low as 8°C (47°F). This pleasant climate makes it an ideal time for travelers to explore and enjoy outdoor activities.

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

The chart illustrates September temperature patterns in Riverview, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Riverview, September typically has an average temperature of 23°C (73°F), with highs reaching up to 34°C (94°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec343648556676807773594640
Data source: Temperature data for Riverview 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 Riverview

In Riverview in September, the precipitation amount is 59 mm (2.3 in) over a span of 7 days.

September Precipitation Trends in Riverview

The chart displays monthly precipitation patterns in Riverview, 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 Riverview, September typically receives around 59 mm (2.3 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec6861121123169101109101591115741
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Riverview

In Riverview in September, humidity is 72%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace, making travel exhilarating yet slightly sticky, as the air clings to your skin and invites you to seek out cool, refreshing places to explore.

September Average Humidity in Riverview

This chart illustrates the average monthly humidity levels in Riverview, 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 Riverview is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%78%75%77%82%83%81%78%72%72%84%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Riverview

In Riverview 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 Riverview.

Maximum UV Index Levels in Riverview for September

The chart shows the monthly maximum UV Index (UVI) for Riverview 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 Riverview typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35710101111109753
Data source: Riverview 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 Riverview Compares to Other Months

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

This table compares monthly weather conditions in Riverview, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)68 mm (2.7 inches)80%moderate
February Weather2°C (36°F)61 mm (2.4 inches)78%moderate
March Weather9°C (48°F)121 mm (4.8 inches)75%high
April Weather13°C (55°F)123 mm (4.8 inches)77%very high
May Weather19°C (66°F)169 mm (6.7 inches)82%very high
June Weather25°C (77°F)101 mm (4.0 inches)83%extreme
July Weather26°C (80°F)109 mm (4.3 inches)81%extreme
August Weather25°C (77°F)101 mm (4.0 inches)78%very high
September Weather23°C (73°F)59 mm (2.3 inches)72%very high
October Weather15°C (59°F)111 mm (4.4 inches)72%high
November Weather8°C (46°F)57 mm (2.2 inches)84%moderate
December Weather5°C (40°F)41 mm (1.6 inches)86%moderate

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