May Weather in Plymouth, United Kingdom

Last updated: March 17, 2025

May in Plymouth, United Kingdom, brings a delightful mix of spring weather, with maximum temperatures reaching up to 19°C (67°F) and an average of 12°C (54°F). As the month unfolds, residents should prepare for some showers, with precipitation totaling 75 mm (2.9 in) over 11 days. The air is comfortably humid, averaging around 80%, adding to the lush greenery that characterizes this vibrant coastal city. Whether exploring outdoor activities or enjoying the scenic waterfront, May presents an engaging backdrop for both locals and visitors alike.

May Temperature in Plymouth

In May, Plymouth, United Kingdom, experiences a delightful transition into milder spring weather. With minimum temperatures starting around 6°C (43°F) and peaking at 19°C (67°F), the month offers a noticeable warmth compared to the chillier earlier months. The average temperature settles around 12°C (54°F), providing a comfortable setting for outdoor activities and explorations. This upward trend sets the stage for the approach of summer, as the days grow longer and the air feels pleasantly inviting, making May an ideal time to enjoy the scenic beauty of this coastal city.

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

The chart illustrates May temperature patterns in Plymouth, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec464747505359626260565149
Data source: Temperature data for Plymouth generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Plymouth

May in Plymouth sees a moderate precipitation level of 75 mm (2.9 in), making it a relatively wet month compared to April, which had only 48 mm (1.9 in) of rain. With around 11 rain days, May strikes a balance between delightful spring weather and the potential for downpours, reflecting a trend seen in many months where rainfall can fluctuate significantly. This consistent precipitation sets the stage for lush greenery as the region transitions into summer, yet it remains lighter than the heavier rains experienced in the latter months of the year, such as October's 138 mm (5.4 in). Overall, May showcases Plymouth's characteristic spring climate, where occasional showers nurture the landscape while allowing for plenty of pleasant, dry spells.

May Precipitation Trends in Plymouth

The chart displays monthly precipitation patterns in Plymouth, 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.
JanFebMarAprMayJunJulAugSepOctNovDec7810293487577727873138115141
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Plymouth

In Plymouth, United Kingdom, May marks a notable shift in humidity, showcasing a decrease to 80%, down from the year's peak during the winter months. As spring unfolds, the transition is evident, with humidity steadily declining from 88% in January to 84% in April, creating a refreshing atmosphere as summer approaches. This trend continues into June, where humidity remains steady at 80%. The dip in May signifies a brighter, drier period ahead, perfectly aligning with the cheerful outdoor activities of late spring, offering residents and visitors alike a pleasant taste of summer just around the corner.

May Average Humidity in Plymouth

This chart illustrates the average monthly humidity levels in Plymouth, 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.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%84%80%80%70%73%79%89%90%89%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Plymouth

As May unfolds in Plymouth, the UV Index rises to 7, categorizing exposure as high and resulting in a burn time of just 25 minutes. This marks a continuation of increasing UV levels from the previous month, where the Index was 6 in April. The trend can be observed as we move through the spring months—starting from a low of 2 in January and February, then climbing steadily to moderate levels in March and achieving high readings in April and May. As summer approaches, residents and visitors should remain vigilant about sun safety, especially since the UV Index will likely peak in the following months. For more insights on UV levels, visit Plymouth UV Index.

Maximum UV Index Levels in Plymouth for May

The chart shows the monthly maximum UV Index (UVI) for Plymouth 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.
JanFebMarAprMayJunJulAugSepOctNovDec224679876421
Data source: Plymouth 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 Plymouth

May in Plymouth shines brightly with an impressive 410 hours of sunshine, marking the peak of spring's radiance. This delightful month follows a progressive increase in sunlight, starting from a modest 99 hours in January and steadily climbing through the weeks. As April transitions into May, the sunlight nearly doubles, showcasing the region's gradual emergence from winter's gloom. The sunny trend continues into June, with slightly reduced hours at 408, but the overall vibe remains vibrant. This blossoming pattern of increasing daylight not only highlights May as a month of celebration but also signals the advent of summer, promising a warm embrace of daylight that culminates in July's sun-drenched 428 hours. Such a sunny trajectory makes Plymouth an inviting destination for outdoor activities and leisure during this time.

Monthly Sunshine Duration in Plymouth: May Highlighted

The May sunshine duration represents the total number of hours Plymouth 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.
JanFebMarAprMayJunJulAugSepOctNovDec99h160h234h358h410h408h428h392h330h262h155h121h
Data source: Plymouth May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Plymouth During May

In Plymouth, United Kingdom, the likelihood of sunny weather peaks in April with a promising 55% chance, making it a delightful prelude to the warmer months. However, as we transition into May, the chance of sunshine drops to 34%, indicating a slight decrease but still promising opportunities for those looking to enjoy outdoor activities. This trend reflects a generally variable forecast as spring progresses, with the subsequent months—June and July—bringing higher chances of sunshine at 30% and 40%, respectively. Thus, while May may not deliver the lofty sunshine levels of April, it remains a transition month with moments of brightness amidst the evolving weather patterns.

Percentage of Sunny Days in May in Plymouth

The chart illustrates the percentage of sunny days in Plymouth 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 Plymouth experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec24%25%35%55%34%30%40%32%35%27%29%20%
Data source: Plymouth May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Plymouth in May

As May unfolds in Plymouth, the city basks in 15 hours of daylight, a notable increase from the 13 hours experienced in April. This trend of lengthening days reflects the progression towards summer, where daylight peaks dramatically in June with 16 hours. May serves as a vibrant transition month, heralding warmer weather and encouraging outdoor activities, as the longer days foster a sense of renewal and energy. As spring gives way to summer, residents and visitors alike can enjoy the extended sunlight, marking a shift from the shorter, cozier days of winter, which offer only 8 hours of daylight in the depths of January and November. This gradual increase not only uplifts spirits but also enhances the beauty of Plymouth’s picturesque landscapes, inviting all to revel in the longer, sun-kissed days.

Average Daylight Hours in Plymouth for May

The chart illustrates the variation in daylight duration in Plymouth throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 33m10h 3m11h 55m13h 49m15h 28m16h 20m15h 52m14h 23m12h 33m10h 40m8h 58m8h 4m
Data source: Plymouth daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Plymouth

As May settles in Plymouth, the winds begin their gentle dance, showcasing an average speed of 6.7 m/s (15 mph). This month’s breezes are a welcome shift from the stronger currents of February, which peaked at 8.3 m/s (18 mph), and the calmer April, with its lowest winds at 5.3 m/s (12 mph). May often serves as a transitional period, where the bustling winds start to ease in rhythm, yet still maintain a lively presence—perfect for those who enjoy the outdoors. As summer approaches, June is expected to continue this trend with softer gusts at 4.3 m/s (10 mph), indicating a gradual descent into the more mild and tranquil summer months.

Average May Wind Speed in Plymouth

The chart displays monthly wind speed patterns in Plymouth, 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.
JanFebMarAprMayJunJulAugSepOctNovDec7.38.36.55.36.7 m/s4.35.15.35.16.55.98.2
Data source: Plymouth May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Plymouth Compares to Other Months

The weather in Plymouth 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 Plymouth and find detailed weather information for every month.

May and January present quite different weather patterns. In May, temperatures range from a minimum of 6°C (43°F) to a maximum of 19°C (67°F), with an average of 12°C (54°F). The month experiences around 75 mm (2.9 in) of precipitation over approximately 11 days, accompanied by a humidity level of 80%. In contrast, January is cooler, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 14°C (57°F) and an average of 8°C (47°F). Precipitation is slightly higher at 78 mm (3.1 in) over 12 days, and humidity is a bit more pronounced at 88%. For more detailed information, you can check Plymouth weather in January.

When comparing the weather in May and February, we see a notable difference in temperature and precipitation patterns. May enjoys a more moderate climate, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 19°C (67°F), and an average of 12°C (54°F). In contrast, February experiences chillier conditions, with temperatures dipping as low as -1°C (31°F) and peaking at 13°C (55°F). Precipitation is also higher in February, with 102 mm (4.0 in) over 15 days, compared to May's 75 mm (2.9 in) spread over 11 days. Additionally, the humidity levels are slightly elevated in February at 88%, whereas May averages 80%. For a detailed outlook on February weather, you can visit Plymouth weather in February.

In comparing the weather between May and March, May typically offers milder temperatures with an average of 12°C (54°F) compared to the cooler March average of 9°C (48°F). While March can dip as low as -2°C (29°F), May’s minimum temperature remains comfortably above 6°C (43°F). However, March experiences slightly higher precipitation at 93 mm (3.7 in) over 15 days, compared to May’s 75 mm (2.9 in) over 11 days. Humidity levels are also a bit higher in March at 86%, compared to May’s 80%. For further specifics, you can check out Plymouth weather in March.

In comparing the weather between April and May, it's clear that May generally offers slightly warmer conditions. The minimum temperature in May is 6°C, compared to April's 3°C, while the average temperature rises from 10°C in April to 12°C in May. Maximum temperatures also see a modest increase, reaching 19°C in May compared to 17°C in April. However, May experiences more precipitation, with 75 mm over 11 days, compared to 48 mm over 8 days in April. Humidity levels are also slightly lower in May at 80%, compared to 84% in April. For more details about April weather, you can check Plymouth weather in April.

In comparing the weather of May and June, May typically experiences cooler temperatures with a minimum of 6°C (43°F) and an average of 12°C (54°F), reaching a maximum of 19°C (67°F). It sees about 75 mm (2.9 in) of precipitation over 11 days, while humidity levels remain consistent at 80%. In contrast, June brings warmer weather, with minimum temperatures rising to 10°C (50°F) and an average of 15°C (59°F), peaking at 22°C (72°F). Although June has slightly more rainfall at 77 mm (3.0 in) across 12 days, the humidity remains the same at 80%. To learn more about the typical weather conditions during June, you can visit Plymouth weather in June.

May and July present distinct differences in weather patterns. In May, temperatures range from a minimum of 6°C (43°F) to a maximum of 19°C (67°F), with an average of 12°C (54°F). This month also sees about 75 mm (2.9 in) of precipitation over an average of 11 days, coupled with a high humidity level of 80%. In contrast, July experiences warmer conditions, with temperatures soaring from a minimum of 12°C (53°F) to a maximum of 24°C (75°F), averaging 17°C (63°F). Precipitation is slightly lower at 72 mm (2.8 in) over about 10 days, and humidity decreases to a more comfortable 70%. For a detailed look at what to expect, check out Plymouth weather in July.

May and August present distinct contrasts in weather patterns. In May, temperatures range from a cool minimum of 6°C (43°F) to an average of 12°C (54°F), peaking at a comfortable 19°C (67°F). The month is characterized by relatively high humidity at 80% and approximately 75 mm (2.9 in) of precipitation over 11 days. In contrast, August enjoys warmer conditions with temperatures starting at a minimum of 13°C (55°F), averaging 17°C (62°F), and reaching a maximum of 23°C (73°F). While August sees slightly more precipitation at 78 mm (3.1 in) over 12 days, the humidity is lower at 73%. These differences create a notable shift from the spring-like feel of May to the late summer warmth of August. For more detailed insights, check out Plymouth weather in August.

May and September both feature mild temperatures, but September tends to be slightly warmer overall. In May, the temperatures range from a minimum of 6°C (43°F) to a maximum of 19°C (67°F), with an average temperature of 12°C (54°F). By contrast, September offers a minimum of 10°C (50°F) and a maximum of 21°C (70°F), averaging around 15°C (60°F). Precipitation levels remain similar in both months, with May contributing 75 mm (2.9 in) over 11 days and September slightly lower at 73 mm (2.9 in) across 12 days. Humidity levels are also comparable, with May at 80% and September at 79%. For more detailed information, check out Plymouth weather in September.

May and October share similar maximum temperatures, both reaching around 19°C (67°F), but October often feels more humid, with an average humidity of 89% compared to May's 80%. In May, the weather is generally milder with an average temperature of 12°C (54°F) and less precipitation, totaling 75 mm (2.9 in) over 11 days. In contrast, October brings increased rainfall, with precipitation reaching 138 mm (5.4 in) across 16 days. This significant difference in precipitation makes October feel much wetter, influencing outdoor activities. For a detailed look at what to expect, check out Plymouth weather in October.

May and November exhibit notable differences in weather patterns. In May, temperatures range from a minimum of 6°C (43°F) to a maximum of 19°C (67°F), making it a generally milder month with an average of 12°C (54°F). The precipitation level is around 75 mm (2.9 in), occurring over approximately 11 days, with humidity at 80%. In contrast, November sees cooler temperatures, with minimums of 4°C (40°F) and maximums of only 16°C (60°F), averaging 11°C (52°F). This month experiences a higher precipitation level of 115 mm (4.5 in) over about 17 days, along with increased humidity at 90%. For more specific details about November weather, you can check Plymouth weather in November.

In May, the weather is generally milder, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 19°C (67°F), and an average of 12°C (54°F). The month sees about 75 mm (2.9 in) of precipitation over 11 days, with humidity levels around 80%. In contrast, December brings cooler temperatures, with a minimum of 4°C (39°F) and a maximum of 14°C (57°F), averaging 10°C (49°F). The precipitation increases significantly to 141 mm (5.6 in) over 20 days, resulting in higher humidity at around 89%. For more details on December weather, visit Plymouth weather in December.

Compare Plymouth's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Plymouth

As May rolls into Plymouth, the weather undergoes a refreshing transformation compared to the chillier months preceding it. With temperatures reaching pleasant highs and a gentle average, the city begins to bask in more sunshine, inviting both locals and tourists to enjoy its beautiful landscapes. Although rainfall occurs on about a third of the days, the overall humidity hovers around a comfortable level, making outdoor activities enjoyable despite the occasional shower. This vibrant shift in weather patterns marks the transition into spring, setting the stage for the sunny days of summer ahead. For a deeper dive into the city's climate nuances, visit Plymouth Climate.