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May Weather in Columbia, United States

Last updated: June 24, 2025

In May, the average temperature in Columbia, United States hovers around 21°C (70°F). Temperatures can range from a cool 6°C (44°F) to a sweltering 35°C (96°F). Expect about 122 mm (4.8 in) of precipitation spread over 12 days, accompanied by an average humidity of 81%. Stay prepared for a mix of warm days and occasional rain!

May Temperature in Columbia

In May in Columbia, the average temperature is 21°C (70°F). Maximum temperatures can reach 35°C (96°F), while minimum temperatures can dip as low as 6°C (44°F). This weather makes it an ideal time for traveling, allowing for comfortable outdoor adventures and exploration.

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

The chart illustrates May temperature patterns in Columbia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Columbia, May typically has an average temperature of 21°C (70°F), with highs reaching up to 35°C (96°F) and lows dropping to around 6°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec444952617076807975675449
Data source: Temperature data for Columbia 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 Columbia

In Columbia in May, the precipitation amount is 122 mm (4.8 in) over a span of 12 days.

May Precipitation Trends in Columbia

The chart displays monthly precipitation patterns in Columbia, 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 Columbia, May typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec961087210212215114818212994101119
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Columbia

In Columbia in May, humidity is 81%. With an average temperature of 21°C (70°F), this humidity feels like a warm, sticky embrace, making outdoor activities slightly uncomfortable and necessitating frequent breaks in the shade or air conditioning for a refreshing escape.

May Average Humidity in Columbia

This chart illustrates the average monthly humidity levels in Columbia, 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 Columbia is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%81%80%80%81%82%83%83%80%80%83%84%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Columbia

In Columbia 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 Columbia.

Maximum UV Index Levels in Columbia for May

The chart shows the monthly maximum UV Index (UVI) for Columbia 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 Columbia typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111011109853
Data source: Columbia 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 Columbia Compares to Other Months

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

This table compares monthly weather conditions in Columbia, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)96 mm (3.8 inches)84%moderate
February Weather9°C (49°F)108 mm (4.3 inches)81%high
March Weather11°C (52°F)72 mm (2.8 inches)80%very high
April Weather16°C (62°F)102 mm (4.0 inches)80%very high
May Weather21°C (70°F)122 mm (4.8 inches)81%extreme
June Weather25°C (76°F)151 mm (6.0 inches)82%very high
July Weather27°C (80°F)148 mm (5.8 inches)83%extreme
August Weather26°C (80°F)182 mm (7.1 inches)82%very high
September Weather24°C (76°F)129 mm (5.1 inches)80%very high
October Weather19°C (67°F)94 mm (3.7 inches)79%very high
November Weather12°C (55°F)101 mm (4.0 inches)83%moderate
December Weather9°C (49°F)119 mm (4.7 inches)84%moderate

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