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May Weather in Seymour, United States

Last updated: June 24, 2025

In Seymour, United States, the average temperature in May hovers around 20°C (69°F), making it a pleasant time to explore. Temperatures can dip to a brisk 2°C (36°F) and rise to a warm 33°C (91°F). Be prepared for a wet month, as 107 mm (4.2 in) of precipitation is expected over approximately 12 days. With an average humidity of 85%, it’s best to pack your light layers and an umbrella for the occasional shower!

May Temperature in Seymour

In May in Seymour, the average temperature is 20°C (69°F). The maximum can reach 33°C (91°F) and the minimum can be as low as 2°C (36°F). This range makes Seymour a great destination for travelers looking to experience pleasant weather along with the possibility of both warm days and cooler nights.

May Weather in Seymour: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Seymour, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Seymour, May typically has an average temperature of 20°C (69°F), with highs reaching up to 33°C (91°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec414652596875797773634844
Data source: Temperature data for Seymour 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 Seymour

In Seymour in May, the precipitation amount is 107 mm (4.2 in) spread over 12 days.

May Precipitation Trends in Seymour

The chart displays monthly precipitation patterns in Seymour, 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 Seymour, May typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec941551451301071071071119011975131
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Seymour

In Seymour in May humidity is 85%. With an average temperature of 20°C (69°F), this humidity feels like a warm, sticky embrace that can make even short walks feel tiring, creating a heavy atmosphere that may deter longer excursions but offers an opportunity to explore shaded areas and savor refreshing drinks.

May Average Humidity in Seymour

This chart illustrates the average monthly humidity levels in Seymour, 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 Seymour is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%82%85%85%83%76%76%80%88%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Seymour

In Seymour in May, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Seymour.

Maximum UV Index Levels in Seymour for May

The chart shows the monthly maximum UV Index (UVI) for Seymour 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 Seymour typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36810111111109753
Data source: Seymour 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 Seymour Compares to Other Months

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

This table compares monthly weather conditions in Seymour, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)94 mm (3.7 inches)86%moderate
February Weather8°C (46°F)155 mm (6.1 inches)86%high
March Weather11°C (52°F)145 mm (5.7 inches)86%very high
April Weather15°C (59°F)130 mm (5.1 inches)82%very high
May Weather20°C (69°F)107 mm (4.2 inches)85%extreme
June Weather24°C (75°F)107 mm (4.2 inches)85%extreme
July Weather26°C (79°F)107 mm (4.2 inches)83%extreme
August Weather25°C (77°F)111 mm (4.4 inches)76%very high
September Weather23°C (73°F)90 mm (3.5 inches)76%very high
October Weather17°C (63°F)119 mm (4.7 inches)80%high
November Weather9°C (49°F)75 mm (3.0 inches)88%moderate
December Weather7°C (45°F)131 mm (5.1 inches)88%moderate

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