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May Weather in Darien, United States

Last updated: June 24, 2025

In May, the average temperature in Darien, United States hovers around 16°C (61°F), with a diverse range of weather. Expect minimums dipping to -2°C (29°F) and maximums soaring to 34°C (94°F). The month brings 156 mm (6.1 in) of precipitation over about 15 days, contributing to an average humidity level of 79%. Be prepared for a mix of sunny days and showers!

May Temperature in Darien

In May in Darien, the average temperature is 16°C (61°F). Maximum temperatures can reach up to 34°C (94°F), while minimums can drop as low as -2°C (29°F). This range makes Darien an ideal destination for travelers seeking both warm and cool experiences.

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

The chart illustrates May temperature patterns in Darien, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Darien, May typically has an average temperature of 16°C (61°F), with highs reaching up to 34°C (94°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec262839486172757368543933
Data source: Temperature data for Darien 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 Darien

In Darien in May, the total precipitation amount is 156 mm (6.1 in) distributed over 15 days.

May Precipitation Trends in Darien

The chart displays monthly precipitation patterns in Darien, 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 Darien, May typically receives around 156 mm (6.1 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec61638912015615111691851315754
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Darien

In Darien in May humidity is 79%. With an average temperature of 16°C (61°F), this humidity feels like a warm, moist embrace, making travel a bit more challenging as the air tends to weigh heavily, but it also offers a refreshing atmosphere perfect for exploring local sights and enjoying nature.

May Average Humidity in Darien

This chart illustrates the average monthly humidity levels in Darien, 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 Darien is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%84%85%79%82%80%81%80%82%88%84%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Darien

In Darien 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 Darien.

Maximum UV Index Levels in Darien for May

The chart shows the monthly maximum UV Index (UVI) for Darien 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 Darien typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098642
Data source: Darien 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 Darien Compares to Other Months

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

This table compares monthly weather conditions in Darien, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)61 mm (2.4 inches)82%moderate
February Weather-2°C (28°F)63 mm (2.5 inches)83%moderate
March Weather4°C (40°F)89 mm (3.5 inches)84%high
April Weather9°C (49°F)120 mm (4.7 inches)85%very high
May Weather16°C (61°F)156 mm (6.1 inches)79%very high
June Weather22°C (72°F)151 mm (6.0 inches)82%very high
July Weather24°C (76°F)116 mm (4.6 inches)80%very high
August Weather23°C (73°F)91 mm (3.6 inches)81%very high
September Weather20°C (68°F)85 mm (3.4 inches)80%very high
October Weather12°C (55°F)131 mm (5.2 inches)82%high
November Weather4°C (39°F)57 mm (2.3 inches)88%moderate
December Weather1°C (33°F)54 mm (2.1 inches)84%low

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