nomadseason

September Weather in Valhalla, United States

Last updated: June 24, 2025

In September, the average temperature in Valhalla, United States hovers around 20°C (69°F). Expect a range from a brisk 8°C (47°F) to a warm 33°C (91°F). With 98 mm (3.8 in) of precipitation spread over 9 days, you'll want to be prepared for some rain. The average humidity sits at a comfortable 68%, adding to the overall experience of this vibrant month.

September Temperature in Valhalla

In September in Valhalla, the average temperature is 20°C (69°F). The maximum can reach 33°C (91°F), while the minimum can be as low as 8°C (47°F). This makes it a perfect time for traveling, offering comfortable warmth and the opportunity to enjoy outdoor activities while also being prepared for cooler evenings.

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

The chart illustrates September temperature patterns in Valhalla, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Valhalla, September typically has an average temperature of 20°C (69°F), with highs reaching up to 33°C (91°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec333541506171777569594637
Data source: Temperature data for Valhalla generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Valhalla

In Valhalla in September, the precipitation amount is 98 mm (3.8 in) occurring over the course of 9 days.

September Precipitation Trends in Valhalla

The chart displays monthly precipitation patterns in Valhalla, 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 Valhalla, September typically receives around 98 mm (3.8 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec6910193114114911431239813286111
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Valhalla

In Valhalla in September, humidity is 68%. With an average temperature of 20°C (69°F), this humidity feels like a warm embrace, making outdoor exploration both refreshing and slightly sticky, requiring occasional breaks in the shade to stay comfortable while traveling.

September Average Humidity in Valhalla

This chart illustrates the average monthly humidity levels in Valhalla, 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 Valhalla is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Valhalla

In Valhalla 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 Valhalla.

Maximum UV Index Levels in Valhalla for September

The chart shows the monthly maximum UV Index (UVI) for Valhalla 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 Valhalla typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35681010998642
Data source: Valhalla 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 Valhalla Compares to Other Months

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

This table compares monthly weather conditions in Valhalla, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)69 mm (2.7 inches)84%moderate
February Weather2°C (35°F)101 mm (4.0 inches)82%moderate
March Weather5°C (41°F)93 mm (3.7 inches)81%high
April Weather10°C (51°F)114 mm (4.5 inches)78%very high
May Weather16°C (61°F)114 mm (4.5 inches)69%very high
June Weather21°C (71°F)91 mm (3.6 inches)69%very high
July Weather25°C (77°F)143 mm (5.6 inches)62%very high
August Weather24°C (75°F)123 mm (4.8 inches)65%very high
September Weather20°C (69°F)98 mm (3.8 inches)68%very high
October Weather15°C (60°F)132 mm (5.2 inches)74%high
November Weather8°C (46°F)86 mm (3.4 inches)82%moderate
December Weather3°C (38°F)111 mm (4.4 inches)80%low

Compare Valhalla's Climate with Cities Worldwide