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May Weather in Cullen, United Kingdom

Last updated: August 27, 2025

In May, the average temperature in Cullen, United Kingdom hovers around 9°C (49°F), with a minimum of 3°C (38°F) and a maximum reaching 17°C (63°F). Expect around 65 mm (2.6 in) of precipitation spread across 12 days, contributing to an average humidity of 82%.

May Temperature in Cullen

In May in Cullen, the average temperature is 9°C (49°F). The maximum can reach 17°C (63°F), while the minimum can drop to as low as 3°C (38°F). Dress in layers to enjoy your travels comfortably, as temperatures can vary throughout the day.

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

The chart illustrates May temperature patterns in Cullen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cullen, May typically has an average temperature of 9°C (49°F), with highs reaching up to 17°C (63°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec434243454954575855524744
Data source: Temperature data for Cullen 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 Cullen

In Cullen in May, the precipitation amount is 65 mm (2.6 in) over the course of 12 days.

May Precipitation Trends in Cullen

The chart displays monthly precipitation patterns in Cullen, 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 Cullen, May typically receives around 65 mm (2.6 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec7455674866807977111137133107
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Cullen

In Cullen in May, humidity is 82%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities less enjoyable and prompting travelers to seek warmth indoors or in cozy cafes.

May Average Humidity in Cullen

This chart illustrates the average monthly humidity levels in Cullen, 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 Cullen is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%84%82%84%86%86%90%91%92%89%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Cullen

In Cullen in May, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Cullen.

Maximum UV Index Levels in Cullen for May

The chart shows the monthly maximum UV Index (UVI) for Cullen 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 Cullen typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123558765311
Data source: Cullen 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 Cullen Compares to Other Months

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

This table compares monthly weather conditions in Cullen, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)74 mm (2.9 inches)89%low
February Weather6°C (42°F)55 mm (2.2 inches)88%low
March Weather6°C (43°F)67 mm (2.6 inches)86%moderate
April Weather7°C (45°F)48 mm (1.9 inches)84%moderate
May Weather9°C (49°F)65 mm (2.6 inches)82%moderate
June Weather12°C (54°F)80 mm (3.1 inches)84%very high
July Weather14°C (57°F)79 mm (3.1 inches)86%high
August Weather14°C (58°F)77 mm (3.0 inches)86%high
September Weather13°C (56°F)111 mm (4.4 inches)90%moderate
October Weather11°C (52°F)137 mm (5.4 inches)91%moderate
November Weather9°C (48°F)133 mm (5.2 inches)92%low
December Weather7°C (44°F)107 mm (4.2 inches)88%low

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