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May Weather in Sauk City, United States

Last updated: June 24, 2025

In May, the average temperature in Sauk City, United States hovers around 15°C (59°F). Weather-wise, expect a minimum drop to -1°C (31°F) and an occasional peak of 34°C (93°F). With a total precipitation of 129 mm (5.1 in) spread across 14 days, be prepared for some rainy moments. The air carries a 78% average humidity, adding a touch of moisture to your experience.

May Temperature in Sauk City

In May in Sauk City, the average temperature is 15°C (59°F), with maximums reaching up to 34°C (93°F) and minimums dropping as low as -1°C (31°F). This suggests that travelers should be prepared for a wide range of weather conditions during their visit.

May Weather in Sauk City: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Sauk City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sauk City, May typically has an average temperature of 15°C (59°F), with highs reaching up to 34°C (93°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec212236465970747164513628
Data source: Temperature data for Sauk City 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.

May Precipitation in Sauk City

In Sauk City in May, the precipitation amount is 129 mm (5.1 in) over the course of 14 days.

May Precipitation Trends in Sauk City

The chart displays monthly precipitation patterns in Sauk City, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Sauk City, May typically receives around 129 mm (5.1 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec47545889130115881101161164444
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Sauk City

In Sauk City in May, humidity is 78%. With an average temperature of 15°C (59°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making outdoor activities a bit more tiring and requiring frequent breaks for hydration as you explore the area.

May Average Humidity in Sauk City

This chart illustrates the average monthly humidity levels in Sauk City, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Sauk City is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%85%85%78%80%78%76%79%83%88%82%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Sauk City

In Sauk City in May, 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 Sauk City.

Maximum UV Index Levels in Sauk City for May

The chart shows the monthly maximum UV Index (UVI) for Sauk City in May, 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 May, the maximum UV index in Sauk City typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34589101098532
Data source: Sauk City May 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 May Weather in Sauk City Compares to Other Months

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

This table compares monthly weather conditions in Sauk City, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)47 mm (1.9 inches)85%moderate
February Weather-6°C (22°F)54 mm (2.1 inches)85%moderate
March Weather2°C (36°F)58 mm (2.3 inches)85%moderate
April Weather8°C (46°F)89 mm (3.5 inches)85%very high
May Weather15°C (59°F)129 mm (5.1 inches)78%very high
June Weather21°C (70°F)115 mm (4.5 inches)80%very high
July Weather23°C (74°F)88 mm (3.4 inches)78%very high
August Weather22°C (71°F)110 mm (4.3 inches)76%very high
September Weather18°C (65°F)116 mm (4.6 inches)79%very high
October Weather10°C (51°F)116 mm (4.6 inches)83%moderate
November Weather2°C (36°F)44 mm (1.7 inches)88%moderate
December Weather-2°C (29°F)44 mm (1.7 inches)81%low

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