May Weather in Dumfries, United Kingdom

Last updated: March 17, 2025

May in Dumfries, United Kingdom welcomes the onset of warmer days, with temperatures soaring to a pleasant maximum of 26°C (79°F). The average temperature sits comfortably at 11°C (52°F), while chilly evenings may dip to a minimum of -1°C (31°F). With 62 mm (2.5 in) of precipitation over 13 days, the month is characterized by a mix of sunshine and showers, contributing to a humid atmosphere at around 80%. This blend of weather patterns sets the stage for vibrant spring blooms and lush landscapes, making May a dynamic month in Dumfries.

May Temperature in Dumfries

In Dumfries, United Kingdom, May marks a delightful transition into warmer weather, where temperatures gradually rise from the chill of earlier months. The month begins with a milder minimum of -1°C (31°F), contrasting sharply with the biting lows of winter. As the days lengthen, the average temperature climbs to a pleasant 11°C (52°F), providing a comfortable atmosphere for outdoor activities and exploration. This month showcases the region's charm, with highs reaching up to 26°C (79°F), allowing residents and visitors alike to bask in the sunshine. As the last vestiges of winter fade away, May clearly sets the tone for the balmier days of summer ahead, making it a magical time in Dumfries.

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

The chart illustrates May temperature patterns in Dumfries, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec404143475258615955504541
Data source: Temperature data for Dumfries 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 Dumfries

May in Dumfries experiences a moderate precipitation total of 62 mm (2.5 in), making it one of the drier months compared to the wetter spring and summer seasons. Rain falls on 13 days, blending drizzly afternoons with brighter interludes. This pattern of precipitation reflects a gradual transition from the lush, rainy months earlier in the year, like February with its notable 128 mm (5.0 in), towards the more variable weather of summer. As the landscape bursts into bloom, May serves as a reminder that while the rainfall decreases, the lush greenery that characterizes Dumfries remains vibrant, showcasing the region's resilience in the face of changing weather patterns.

May Precipitation Trends in Dumfries

The chart displays monthly precipitation patterns in Dumfries, 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.
JanFebMarAprMayJunJulAugSepOctNovDec75128964262948712090132103108
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Dumfries

In May, Dumfries experiences a notable transition in humidity, dipping to 80% after months of higher levels that peaked at 90% in January. This gradual decrease is part of a broader trend observed during the spring months, where humidity consistently lessens from January through May. As the weather warms, the lower humidity may provide a refreshing feel to the air, making it an inviting time for outdoor activities. However, the pattern shifts again in the summer months, with humidity creeping back up in June and July. Overall, May serves as a pivotal month, marking the shift from the dampness of spring to the varied humidity levels of approaching summer.

May Average Humidity in Dumfries

This chart illustrates the average monthly humidity levels in Dumfries, with May's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how May's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%85%81%83%82%82%88%90%92%89%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Dumfries

As May rolls into Dumfries, the UV Index reaches a noteworthy 6, marking a shift into the high exposure category. This trend follows an upward trajectory from the previous months, with April's index at 5 and a stark increase from the winter figures, which hovered around 1 to 2. With a burn time of just 25 minutes, this month signals the importance of sun protection as outdoor activities become more enticing. Following May, the UV Index peaks in June and July, underscoring the need for vigilance against sun overexposure during this time of year. For more insights on UV levels throughout the year, check the full details at Dumfries UV Index.

Maximum UV Index Levels in Dumfries for May

The chart shows the monthly maximum UV Index (UVI) for Dumfries 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.
JanFebMarAprMayJunJulAugSepOctNovDec123568865321
Data source: Dumfries 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.

May Sunshine in Dumfries

In Dumfries, May brings a delightful peak of sunshine, with 391 hours illuminating the landscape. This month marks the transition from the darker, winter months where January and February offer merely 71 and 132 hours, respectively. As spring unfolds, sunlight increases dramatically, hitting 321 hours in April, setting the stage for May's brilliance. Following this lush period, summer continues to shine with July also boasting 391 hours, ensuring that nature flourishes. However, as the year progresses into the late months, daylight wanes significantly, with November and December offering only 110 and 74 hours of sun. This trend highlights May's role as a vibrant threshold into the warmer, sun-filled months of the year in Dumfries, making it a perfect time for outdoor activities and enjoying the natural beauty.

Monthly Sunshine Duration in Dumfries: May Highlighted

The May sunshine duration represents the total number of hours Dumfries experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec71h132h192h321h391h368h391h343h278h207h110h74h
Data source: Dumfries May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Dumfries During May

As spring transitions into summer, May in Dumfries shows a moderate likelihood of sunny weather, with a 29% chance of sunshine. This month stands out compared to the earlier months of the year, particularly April, which boasts a more promising 51% chance of clear skies. However, the likelihood of sun dips in June, falling to 18%, suggesting that May is often a critical bridge for those seeking warmer, sunnier days before the summer months. The fluctuating patterns indicate that while May may not guarantee a sun-soaked escape, it certainly offers a better shot than many other months in the year, making it a delightful time for outdoor activities and enjoying the blossoming greenery.

Percentage of Sunny Days in May in Dumfries

The chart illustrates the percentage of sunny days in Dumfries throughout the year, with May highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Dumfries experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec27%26%22%52%29%19%37%25%18%18%29%15%
Data source: Dumfries May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Dumfries in May

In Dumfries, United Kingdom, the progression of daylight duration throughout the year reveals a captivating seasonal rhythm. Starting in January with a modest 7 hours of daylight, the days gradually lengthen, reaching a remarkable 16 hours by May. This upward trend continues into June, peaking at an impressive 17 hours before the days begin to shorten again. The decline starts in the summer months, where July witnesses a drop back to 16 hours, followed by a gentle tapering to 14 hours in August. As autumn sets in, daylight wanes further to 12 hours in September, eventually settling back at 7 hours by December. This cycle not only captures the essence of the changing seasons but also emphasizes the striking contrast between the long, sunlit days of summer and the cozy, shorter days of winter.

Average Daylight Hours in Dumfries for May

The chart illustrates the variation in daylight duration in Dumfries throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 50m9h 40m11h 53m14h 10m16h 11m17h 16m16h 41m14h 51m12h 39m10h 24m8h 21m7h 14m
Data source: Dumfries daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Dumfries

In Dumfries during the month of May, the average wind speed is recorded at 3.1 m/s (7 mph), offering a gentle breeze that perfectly complements the blooming landscape. Following the breezy patterns of early spring, May experiences a slight increase from April's calmer winds at 2.8 m/s (6 mph). This transitional month bridges the calmer conditions of early spring and the more variable gusts expected in the late spring and summer months. A trend emerges as temperatures rise, with wind speeds generally experiencing fluctuations but maintaining a moderate pace, allowing for an enjoyable outdoor experience amid the lush greenery. With June returning to an average of 3.3 m/s (7 mph), it's clear that the winds in Dumfries are both dynamic and conducive to a vibrant spring atmosphere.

Average May Wind Speed in Dumfries

The chart displays monthly wind speed patterns in Dumfries, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.35.24.42.83.1 m/s3.32.32.93.04.54.13.6
Data source: Dumfries May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Dumfries Compares to Other Months

The weather in Dumfries changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of May's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Dumfries and find detailed weather information for every month.

In comparing the weather of May and January, there are notable differences in temperature and precipitation. May enjoys a more temperate climate with average temperatures reaching 11°C (52°F) and highs of 26°C (79°F), while January is much colder, with average temperatures around 5°C (41°F) and a maximum of only 13°C (56°F). Although January has slightly higher precipitation at 75 mm (3.0 in) compared to May's 62 mm (2.5 in), it benefits from fewer rainy days, with 11 days of precipitation versus May's 13 days. Additionally, January's humidity is higher at 90%, compared to May's 80%, contributing to the generally brisk and chilly atmosphere of winter. For more details on January weather conditions, you can check Dumfries weather in January.

May and February exhibit distinctly different weather patterns. In May, temperatures range from a minimum of -1°C (31°F) to a pleasant maximum of 26°C (79°F), with an average temperature of 11°C (52°F). Precipitation is lighter during this month, totaling 62 mm (2.5 in) over 13 days, and humidity sits at a comfortable 80%. In contrast, February experiences colder temperatures, with daily averages hovering around 5°C (42°F) and a maximum of just 15°C (60°F). This month is also wetter, receiving 128 mm (5.0 in) of rainfall spread across 16 days and higher humidity levels at 88%. For more detailed insights on the weather conditions in February, check out Dumfries weather in February. Overall, May tends to be warmer and drier, while February is characterized by colder temperatures and increased precipitation.

In comparing the weather between March and May, we see a notable shift in temperatures and precipitation. March tends to be colder, with average temperatures around 6°C (44°F) compared to May's milder average of 11°C (52°F). The minimum temperature in March dips to -5°C (23°F), while May only reaches a minimum of -1°C (31°F). Precipitation is also more significant in March, totaling 96 mm (3.8 in) over 15 days, compared to May's 62 mm (2.5 in) over 13 days. However, both months experience relatively high humidity levels, with March at 86% and May slightly lower at 80%. For more specific details on March weather, check Dumfries weather in March.

In comparing the weather of May and April, we notice a noticeable warming trend as spring progresses. May's average temperature rises to 11°C (52°F) from April's 8°C (47°F), with maximums reaching up to 26°C (79°F) compared to April's peak of 21°C (71°F). Precipitation also increases in May, totaling 62 mm (2.5 in) over 13 days, whereas April sees less rain at 42 mm (1.6 in) over just 9 days. Humidity levels are slightly lower in May at 80%, down from April's 85%. For more detailed weather insights, you can check out Dumfries weather in April.

In comparing the weather of May and June, we observe a noticeable warming trend as temperatures rise. May experiences a minimum of -1°C (31°F) and an average of 11°C (52°F), reaching up to a maximum of 26°C (79°F). In contrast, June boasts higher temperatures, starting at a minimum of 5°C (41°F) and averaging 14°C (58°F), with a peak of 29°C (84°F). However, June also sees an increase in precipitation, with 94 mm (3.7 in) over 14 days, compared to May’s 62 mm (2.5 in) over 13 days. Additionally, humidity slightly increases from 80% in May to 83% in June. For more specific details about June weather, you can visit Dumfries weather in June.

May and July present distinct weather patterns, characterized by differing temperatures and precipitation levels. In May, temperatures range from a chilly minimum of -1°C (31°F) to a pleasant maximum of 26°C (79°F), averaging around 11°C (52°F). The month sees around 62 mm (2.5 in) of rainfall over approximately 13 days, and humidity levels hover around 80%. In contrast, July offers a warmer experience, with minimum temperatures rising to 6°C (44°F) and maximums reaching 30°C (85°F), culminating in an average of 16°C (61°F). Precipitation increases slightly to 87 mm (3.4 in) over the same number of rainy days, while humidity levels remain similar at 82%. For more details, you can check Dumfries weather in July.

In comparing the weather between May and August, we observe some notable differences. May typically experiences a wider range in temperatures, with a minimum of -1°C (31°F) and a maximum of 26°C (79°F), leading to an average of 11°C (52°F). In contrast, August starts warmer, with minimum temperatures around 6°C (43°F) and an average of 15°C (60°F); the maximum temperature remains similar at 26°C (80°F). Precipitation is an important factor as well, with May receiving 62 mm (2.5 in) over 13 days, whereas August sees increased rainfall of 120 mm (4.7 in) spread across 18 days. Both months exhibit high humidity levels, around 80% in May and slightly higher at 82% in August. For more specific insights on local conditions, you can explore Dumfries weather in August.

May and September offer a contrasting yet pleasant transition between seasons. In May, temperatures range from a chilly -1°C (31°F) at night to a warm 26°C (79°F) during the day, with an average of 11°C (52°F). The month sees about 62 mm (2.5 in) of precipitation over 13 days, with humidity hovering around 80%. In contrast, September features slightly warmer temperatures, with a minimum of 1°C (34°F) and a maximum of 27°C (81°F), bringing an average of 13°C (56°F). However, this month experiences increased rainfall, totaling 90 mm (3.5 in) across 14 days and higher humidity at 88%. For more details on local conditions, check out Dumfries weather in September.

May and October showcase distinct weather patterns, reflecting the transition from spring to autumn. In May, temperatures range from a minimum of -1°C (31°F) to a maximum of 26°C (79°F), with an average of 11°C (52°F). Precipitation is relatively moderate, totaling 62 mm (2.5 in) over about 13 days, and the humidity hovers around 80%. In contrast, October temperatures drop slightly, with a minimum of -3°C (27°F) and a maximum of 21°C (70°F), averaging 10°C (51°F). Precipitation increases significantly to 132 mm (5.2 in) over 16 days, accompanied by higher humidity levels at 90%. These differences highlight how the weather shifts from the mild, budding warmth of May to the cooler, wetter climate typical of October. For more details, see Dumfries weather in October.

May and November present contrasting weather patterns. In May, temperatures range from a minimum of -1°C (31°F) to a pleasant maximum of 26°C (79°F), with an average of 11°C (52°F). This month sees relatively lower precipitation, totaling 62 mm (2.5 in) over about 13 days, accompanied by a moderate humidity level of 80%. In contrast, November experiences cooler conditions, with temperatures dropping to a minimum of -4°C (25°F) and averaging 7°C (45°F), peaking at only 14°C (58°F). The month also witnesses increased precipitation, reaching 103 mm (4.0 in) across roughly 15 days, and higher humidity at 92%. For more detailed insights, check out Dumfries weather in November.

May and December exhibit stark contrasts in weather patterns. In May, temperatures range from a chilly minimum of -1°C (31°F) to a warm maximum of 26°C (79°F), with an average of 11°C (52°F). The rainfall is moderate at 62 mm (2.5 in) over 13 days, and the humidity hovers around 80%. In contrast, December features colder temperatures, with a minimum of -6°C (21°F) and a maximum of only 12°C (55°F), averaging just 5°C (42°F). This month experiences heavier precipitation, totaling 108 mm (4.2 in) across 17 days, and a higher humidity level of 89%. For a more detailed look at December weather, visit Dumfries weather in December.

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Conclusion: What to Expect From May Weather in Dumfries

May in Dumfries offers a delightful transition into warmer weather, standing out from the chillier months of early spring. With temperatures rising to a pleasant maximum of 26°C (79°F), the average warms up significantly compared to the earlier part of the year, providing a refreshing escape from the lingering cold. Though May sees around 13 days of light precipitation, the overall atmosphere is characterized by heightened humidity levels of 80%, giving the landscape a lush, vibrant quality. As the days lengthen, the increased warmth and spring blooms make this month a picturesque time to experience the natural beauty of Dumfries. For a deeper understanding of how May weather compares to other months, explore more at Dumfries Climate.