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May Weather in Killyleagh, United Kingdom

Last updated: August 27, 2025

In Killyleagh, United Kingdom, the average temperature in May hovers around 11°C (52°F). Expect cool days with minimums dipping to 3°C (37°F) and highs reaching up to 19°C (67°F). This month sees an average precipitation of 64 mm (2.5 in) over approximately 12 days, accompanied by a high humidity level of 82%. Prepare for a mix of chilly breezes and occasional showers!

May Temperature in Killyleagh

In May in Killyleagh, the average temperature is 11°C (52°F). Maximum temperatures can reach 19°C (67°F), while minimums can dip as low as 3°C (37°F). It's a great time to explore Killyleagh with its mild weather, ideal for outdoor activities and sightseeing.

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

The chart illustrates May temperature patterns in Killyleagh, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Killyleagh, May typically has an average temperature of 11°C (52°F), with highs reaching up to 19°C (67°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec434345475256595956524845
Data source: Temperature data for Killyleagh 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 Killyleagh

In Killyleagh in May, the total precipitation amount is 64 mm (2.5 in) over the course of 12 days.

May Precipitation Trends in Killyleagh

The chart displays monthly precipitation patterns in Killyleagh, 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 Killyleagh, May typically receives around 64 mm (2.5 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec6698844364819011682107110103
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Killyleagh

In Killyleagh in May, humidity is 82%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that seeps into your bones, making it essential to dress in layers and stay prepared for the moisture-laden air as you explore your surroundings.

May Average Humidity in Killyleagh

This chart illustrates the average monthly humidity levels in Killyleagh, 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 Killyleagh is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%85%82%84%86%86%88%89%90%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Killyleagh

In Killyleagh in May, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Killyleagh.

Maximum UV Index Levels in Killyleagh for May

The chart shows the monthly maximum UV Index (UVI) for Killyleagh 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 Killyleagh typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123578865321
Data source: Killyleagh 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 Killyleagh Compares to Other Months

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

This table compares monthly weather conditions in Killyleagh, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (44°F)66 mm (2.6 inches)87%low
February Weather6°C (44°F)98 mm (3.8 inches)86%low
March Weather7°C (45°F)84 mm (3.3 inches)86%moderate
April Weather8°C (47°F)43 mm (1.7 inches)85%moderate
May Weather11°C (52°F)64 mm (2.5 inches)82%high
June Weather13°C (57°F)81 mm (3.2 inches)84%very high
July Weather15°C (59°F)89 mm (3.5 inches)86%very high
August Weather15°C (59°F)116 mm (4.6 inches)86%high
September Weather14°C (57°F)82 mm (3.2 inches)88%moderate
October Weather11°C (53°F)107 mm (4.2 inches)89%moderate
November Weather9°C (48°F)110 mm (4.3 inches)90%low
December Weather7°C (45°F)103 mm (4.1 inches)86%low

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