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September Weather in Boswell, United States

Last updated: June 24, 2025

In Boswell, United States, the average temperature in September hovers around 21°C (70°F), with a minimum of 5°C (42°F) and a maximum reaching up to 34°C (93°F). Expect about 74 mm (2.9 in) of precipitation spread over 8 days, and be prepared for high humidity levels averaging 80%.

September Temperature in Boswell

In September in Boswell, the average temperature is 21°C (70°F), with maximums reaching 34°C (93°F) and minimums dropping as low as 5°C (42°F). This range makes Boswell a perfect destination for travelers seeking both warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Boswell, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Boswell, September typically has an average temperature of 21°C (70°F), with highs reaching up to 34°C (93°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec283042516474777469574135
Data source: Temperature data for Boswell 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 Boswell

In Boswell in September, the precipitation amount is 74 mm (2.9 in) over a period of 8 days.

September Precipitation Trends in Boswell

The chart displays monthly precipitation patterns in Boswell, 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 Boswell, September typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec747610910915310791110741217558
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Boswell

In Boswell in September humidity is 80%. With an average temperature of 21°C (70°F), this humidity feels like a warm, enveloping blanket that can make even short walks feel draining, urging travelers to seek shade or a cool drink frequently.

September Average Humidity in Boswell

This chart illustrates the average monthly humidity levels in Boswell, 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 Boswell is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%84%85%79%82%80%81%80%82%88%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Boswell

In Boswell 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 Boswell.

Maximum UV Index Levels in Boswell for September

The chart shows the monthly maximum UV Index (UVI) for Boswell 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 Boswell typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098642
Data source: Boswell 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 Boswell Compares to Other Months

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

This table compares monthly weather conditions in Boswell, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)74 mm (2.9 inches)82%moderate
February Weather-1°C (31°F)76 mm (3.0 inches)83%moderate
March Weather5°C (42°F)109 mm (4.3 inches)84%high
April Weather11°C (52°F)109 mm (4.3 inches)85%very high
May Weather18°C (64°F)153 mm (6.0 inches)79%very high
June Weather23°C (74°F)106 mm (4.2 inches)82%extreme
July Weather25°C (77°F)91 mm (3.6 inches)80%very high
August Weather23°C (74°F)110 mm (4.3 inches)81%very high
September Weather21°C (70°F)74 mm (2.9 inches)80%very high
October Weather14°C (57°F)121 mm (4.8 inches)82%high
November Weather5°C (41°F)75 mm (3.0 inches)88%moderate
December Weather2°C (35°F)58 mm (2.3 inches)84%low

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