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September Weather in South Webster, United States

Last updated: June 24, 2025

In South Webster, United States, the average temperature in September is a pleasant 21°C (71°F). Temperatures can vary significantly, with a minimum of 7°C (44°F) and a blistering maximum of 37°C (98°F). Expect about 107 mm (4.2 in) of precipitation spread over 8 days, contributing to an average humidity of 73%.

September Temperature in South Webster

In September in South Webster, the average temperature is 21°C (71°F). Maximums can reach 37°C (98°F), while minimums can dip as low as 7°C (44°F). This makes South Webster a versatile destination for travelers, offering comfortable weather for outdoor activities throughout the month.

September Weather in South Webster: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in South Webster, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In South Webster, September typically has an average temperature of 21°C (71°F), with highs reaching up to 37°C (98°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec353946556673787570604540
Data source: Temperature data for South Webster 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 South Webster

In South Webster in September, the total precipitation amount is 107 mm (4.2 in), occurring over a span of 8 days.

September Precipitation Trends in South Webster

The chart displays monthly precipitation patterns in South Webster, 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 South Webster, September typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec8812810612612715210312110711478114
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in South Webster

In South Webster in September humidity is 73%. With an average temperature of 21°C (71°F), this humidity feels like a warm, enveloping blanket that can make outdoor activities a bit uncomfortable, but with proper hydration and breaks in the shade, it’s still manageable for traveling.

September Average Humidity in South Webster

This chart illustrates the average monthly humidity levels in South Webster, 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 South Webster is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%85%81%82%81%73%73%78%89%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in South Webster

In South Webster 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 South Webster.

Maximum UV Index Levels in South Webster for September

The chart shows the monthly maximum UV Index (UVI) for South Webster 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 South Webster typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101010108653
Data source: South Webster 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 South Webster Compares to Other Months

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

This table compares monthly weather conditions in South Webster, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)87 mm (3.4 inches)88%moderate
February Weather4°C (40°F)128 mm (5.0 inches)88%moderate
March Weather8°C (47°F)105 mm (4.2 inches)87%high
April Weather13°C (55°F)126 mm (5.0 inches)85%very high
May Weather19°C (66°F)127 mm (5.0 inches)81%very high
June Weather23°C (73°F)152 mm (6.0 inches)82%very high
July Weather25°C (78°F)103 mm (4.1 inches)81%very high
August Weather24°C (75°F)121 mm (4.7 inches)73%very high
September Weather21°C (71°F)107 mm (4.2 inches)73%very high
October Weather15°C (60°F)114 mm (4.5 inches)78%high
November Weather7°C (45°F)78 mm (3.1 inches)89%moderate
December Weather4°C (40°F)114 mm (4.5 inches)87%moderate

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