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September Weather in Bolivar, United States

Last updated: June 24, 2025

In September, the average temperature in Bolivar, United States hovers around 21°C (71°F), offering a pleasant climate for exploration. Be prepared for temperature fluctuations, with minimums dropping to 4°C (40°F) and maximums soaring to 35°C (96°F). During this month, expect 103 mm (4.1 in) of precipitation across 10 days, accompanied by an average humidity level of 68%. Enjoy the balance of warmth and occasional showers as you experience the charm of Bolivar!

September Temperature in Bolivar

In September in Bolivar, the average temperature is 21°C (71°F), with maximums reaching 35°C (96°F) and minimums dropping as low as 4°C (40°F). This makes Bolivar an ideal destination for travelers seeking a warm getaway with a comfortable range of temperatures.

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

The chart illustrates September temperature patterns in Bolivar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bolivar, September typically has an average temperature of 21°C (71°F), with highs reaching up to 35°C (96°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec353945556573797670614639
Data source: Temperature data for Bolivar 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 Bolivar

In Bolivar in September, the precipitation amount is 103 mm (4.1 in) over a span of 10 days.

September Precipitation Trends in Bolivar

The chart displays monthly precipitation patterns in Bolivar, 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 Bolivar, September typically receives around 103 mm (4.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec6094851001381081241101031008493
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bolivar

In Bolivar in September, humidity is 68%. With an average temperature of 21°C (71°F), this humidity feels like a warm embrace, making traveling a bit sticky but also inviting for leisurely strolls and outdoor adventures.

September Average Humidity in Bolivar

This chart illustrates the average monthly humidity levels in Bolivar, 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 Bolivar is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%84%78%79%70%59%68%80%87%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bolivar

In Bolivar in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Bolivar.

Maximum UV Index Levels in Bolivar for September

The chart shows the monthly maximum UV Index (UVI) for Bolivar 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 Bolivar typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098753
Data source: Bolivar 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 Bolivar Compares to Other Months

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

This table compares monthly weather conditions in Bolivar, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)59 mm (2.3 inches)86%moderate
February Weather4°C (40°F)94 mm (3.7 inches)86%moderate
March Weather7°C (45°F)85 mm (3.4 inches)86%high
April Weather13°C (55°F)100 mm (4.0 inches)84%very high
May Weather18°C (65°F)138 mm (5.4 inches)78%very high
June Weather23°C (74°F)108 mm (4.2 inches)79%very high
July Weather26°C (79°F)124 mm (4.9 inches)70%very high
August Weather25°C (77°F)110 mm (4.3 inches)59%very high
September Weather21°C (71°F)103 mm (4.1 inches)68%very high
October Weather16°C (61°F)100 mm (3.9 inches)80%high
November Weather8°C (46°F)83 mm (3.3 inches)86%moderate
December Weather4°C (39°F)93 mm (3.6 inches)85%moderate

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