September Weather in Waupaca, United States

Last updated: June 24, 2025

The average temperature in Waupaca, United States during September hovers around 17°C (63°F). Expect temperature fluctuations from a chilly 1°C (34°F) at night to a warm 33°C (91°F) during the day. Be prepared for some rain, with total precipitation reaching 92 mm (3.6 in) over approximately 11 days. Don't forget that the average humidity sits at a comfortable 78%, making it a uniquely vibrant time of year!

September Temperature in Waupaca

In September in Waupaca, the average temperature is 17°C (63°F). Maximums can reach 33°C (91°F) and minimums can be as low as 1°C (34°F). Be sure to pack layers to accommodate the wide temperature range while exploring.

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

The chart illustrates September temperature patterns in Waupaca, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Waupaca, September typically has an average temperature of 17°C (63°F), with highs reaching up to 33°C (91°F) and lows dropping to around 1°C (34°F).
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Data source: Temperature data for Waupaca 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 Waupaca

In Waupaca in September, the precipitation amount is 92 mm (3.6 in) spread over 11 days.

September Precipitation Trends in Waupaca

The chart displays monthly precipitation patterns in Waupaca, 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 Waupaca, September typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec42516299106108120120921045054
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Waupaca

In Waupaca in September, humidity is 78%. With an average temperature of 17°C (63°F), this humidity feels like a warm, enveloping blanket, making traveling slightly uncomfortable as you navigate the sticky air, prompting the need for frequent breaks in cooler, shaded areas.

September Average Humidity in Waupaca

This chart illustrates the average monthly humidity levels in Waupaca, 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 Waupaca is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%90%87%84%77%75%75%73%78%84%89%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Waupaca

In Waupaca in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Waupaca.

Maximum UV Index Levels in Waupaca for September

The chart shows the monthly maximum UV Index (UVI) for Waupaca 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 Waupaca typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24589101097532
Data source: Waupaca 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 Waupaca Compares to Other Months

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

This table compares monthly weather conditions in Waupaca, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (20°F)42 mm (1.6 inches)89%low
February Weather-7°C (20°F)50 mm (2.0 inches)90%moderate
March Weather1°C (33°F)62 mm (2.4 inches)87%moderate
April Weather6°C (44°F)99 mm (3.9 inches)84%very high
May Weather14°C (58°F)106 mm (4.2 inches)77%very high
June Weather21°C (69°F)108 mm (4.2 inches)75%very high
July Weather23°C (73°F)120 mm (4.7 inches)74%very high
August Weather21°C (70°F)120 mm (4.7 inches)73%very high
September Weather17°C (63°F)92 mm (3.6 inches)78%high
October Weather10°C (50°F)104 mm (4.1 inches)84%moderate
November Weather1°C (35°F)50 mm (2.0 inches)89%moderate
December Weather-3°C (26°F)54 mm (2.1 inches)87%low

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