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May Weather in Shannon, United States

Last updated: June 24, 2025

In May, the average temperature in Shannon, United States hovers around 22°C (73°F), with conditions that can vary widely. Expect a chilly minimum of 6°C (43°F) and the occasional heat wave reaching up to 35°C (95°F). Prepare for some rain, as 122 mm (4.8 inches) of precipitation is likely to fall over about 11 days. With an average humidity of 82%, the air can feel quite heavy, making it a uniquely vibrant month in Shannon!

May Temperature in Shannon

In May in Shannon, the average temperature is 22°C (73°F). Maximum temperatures can reach 35°C (95°F), while minimums can drop as low as 6°C (43°F). Travelers should be prepared for a range of temperatures, making layering a smart choice for outdoor activities.

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

The chart illustrates May temperature patterns in Shannon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shannon, May typically has an average temperature of 22°C (73°F), with highs reaching up to 35°C (95°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec455057627278818177665249
Data source: Temperature data for Shannon 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 Shannon

In Shannon in May, the total precipitation amount is 122 mm (4.8 in) over a span of 11 days.

May Precipitation Trends in Shannon

The chart displays monthly precipitation patterns in Shannon, 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 Shannon, May typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec1241901611591221341041269011173142
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Shannon

In Shannon in May, humidity is 82%. With an average temperature of 22°C (73°F), this humidity feels like a warm, heavy embrace, making traveling feel sticky and draining, but the tropical atmosphere also brings a lush vibrancy to the surroundings.

May Average Humidity in Shannon

This chart illustrates the average monthly humidity levels in Shannon, 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 Shannon is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%82%79%82%77%74%73%85%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Shannon

In Shannon 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 Shannon.

Maximum UV Index Levels in Shannon for May

The chart shows the monthly maximum UV Index (UVI) for Shannon 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 Shannon typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111109764
Data source: Shannon 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 Shannon Compares to Other Months

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

This table compares monthly weather conditions in Shannon, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)124 mm (4.9 inches)85%moderate
February Weather10°C (50°F)190 mm (7.5 inches)84%high
March Weather14°C (58°F)161 mm (6.3 inches)82%very high
April Weather17°C (63°F)159 mm (6.3 inches)82%very high
May Weather22°C (73°F)122 mm (4.8 inches)82%extreme
June Weather26°C (79°F)134 mm (5.3 inches)79%extreme
July Weather27°C (82°F)104 mm (4.1 inches)82%extreme
August Weather27°C (81°F)126 mm (5.0 inches)77%very high
September Weather25°C (77°F)90 mm (3.5 inches)74%very high
October Weather19°C (66°F)111 mm (4.4 inches)73%high
November Weather11°C (52°F)73 mm (2.9 inches)85%high
December Weather9°C (49°F)142 mm (5.6 inches)88%moderate

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