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September Weather in Galva, United States

Last updated: June 24, 2025

In September, the average temperature in Galva, United States is a pleasant 23°C (73°F). Temperatures can fluctuate, with a minimum of 5°C (41°F) and a maximum reaching up to 36°C (98°F). Expect some rain, as the area receives about 68 mm (2.7 in) of precipitation over an average of 6 days. With an average humidity level of 73%, the weather can feel quite tropical, so be prepared for a warm, humid experience!

September Temperature in Galva

In September in Galva, the average temperature is 23°C (73°F). The maximum can reach 36°C (98°F), while the minimum can be as low as 5°C (41°F). Overall, this varied climate makes it essential for travelers to pack both light clothing for the warm days and warmer layers for the cooler evenings.

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

The chart illustrates September temperature patterns in Galva, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Galva, September typically has an average temperature of 23°C (73°F), with highs reaching up to 36°C (98°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec323347556578817873574537
Data source: Temperature data for Galva 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 Galva

In Galva in September, the precipitation amount is 68 mm (2.7 in) spread over the course of 6 days.

September Precipitation Trends in Galva

The chart displays monthly precipitation patterns in Galva, 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 Galva, September typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec28347464180898111368863026
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Galva

In Galva in September humidity is 73%. With an average temperature of 23°C (73°F), this humidity feels like a thick blanket wrapping around you, making travel feel stifling and sticky, as every step seems to linger in the moisture-laden air.

September Average Humidity in Galva

This chart illustrates the average monthly humidity levels in Galva, 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 Galva is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%78%67%70%82%81%80%80%74%71%79%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Galva

In Galva 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 Galva.

Maximum UV Index Levels in Galva for September

The chart shows the monthly maximum UV Index (UVI) for Galva 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 Galva typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3679101111109743
Data source: Galva 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 Galva Compares to Other Months

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

This table compares monthly weather conditions in Galva, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)28 mm (1.1 inches)74%moderate
February Weather1°C (33°F)33 mm (1.3 inches)78%high
March Weather8°C (47°F)74 mm (2.9 inches)67%high
April Weather13°C (55°F)64 mm (2.5 inches)70%very high
May Weather19°C (66°F)180 mm (7.1 inches)82%very high
June Weather26°C (78°F)88 mm (3.5 inches)81%extreme
July Weather27°C (81°F)81 mm (3.2 inches)80%extreme
August Weather25°C (78°F)113 mm (4.5 inches)80%very high
September Weather23°C (73°F)68 mm (2.7 inches)73%very high
October Weather14°C (57°F)86 mm (3.4 inches)71%high
November Weather7°C (45°F)29 mm (1.2 inches)79%moderate
December Weather3°C (38°F)26 mm (1.0 inches)83%moderate

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