May Weather in Swanage, United Kingdom

Last updated: March 17, 2025

May in Swanage, United Kingdom brings a delightful transition into warmer days, with maximum temperatures reaching 19°C (67°F) and an average of 12°C (54°F), offering mild weather perfect for outdoor activities. Visitors can expect occasional rain, with a total precipitation of 55 mm (2.1 in) spread over approximately 9 days, contributing to the lush scenery of this coastal town. Despite the rain, humidity levels hover around a comfortable 79%, ensuring that the air remains fresh and invigorating. Experience the charm of Swanage this May, where every day holds the promise of beauty, whether in sunshine or refreshing showers.

May Temperature in Swanage

In Swanage, May marks a delightful transition into warmer weather, with temperatures showcasing a gentle rise as the month unfolds. The average temperature reaches around 12°C (54°F), while the highs can soar up to 19°C (67°F), allowing for pleasant outdoor activities and seaside strolls. With nighttime temperatures starting at a comfortable 6°C (43°F), it's a significant improvement from the chill of earlier months. As spring fully takes hold, residents and visitors alike can enjoy longer days filled with sunlight, heralding the arrival of summer's warmth. This inviting climate makes May an ideal time to explore the scenic beauty of the Dorset coast.

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

The chart illustrates May temperature patterns in Swanage, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec464647495458636361575249
Data source: Temperature data for Swanage 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 Swanage

In May, Swanage experiences a notable shift in its precipitation patterns, with 55 mm (2.1 in) of rain falling over 9 days. Although this amount represents a moderate increase from the drier conditions of April, it remains lower than the heavier downpours characteristic of the following months. As spring gives way to early summer, May's rainfall is more evenly spaced, inviting pleasant interludes of sunshine amidst the showers. The trend suggests that while precipitation is higher than in the preceding month, it still maintains a gentler rhythm, allowing residents and visitors alike to enjoy the blooming coastal landscapes without the frequent interruptions of rain seen later in the year.

May Precipitation Trends in Swanage

The chart displays monthly precipitation patterns in Swanage, 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.
JanFebMarAprMayJunJulAugSepOctNovDec737574365569467154137107129
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Swanage

In Swanage, United Kingdom, May marks a subtle shift in humidity levels, with an average of 79%, down from the higher percentages seen in the earlier months of the year. This decline from January's peak of 91% through to April creates a refreshing change as spring advances into summer. As the warmer months approach, humidity levels continue to dance around 80% in June and 71% in July, revealing a trend towards greater comfort and less mugginess. In contrast, the end of the year brings a resurgence in humidity, with levels climbing back to 90% by October and peaking again during the winter months. This dynamic fluctuation throughout the year showcases Swanage's unique climate, making May a particularly enjoyable transitional period.

May Average Humidity in Swanage

This chart illustrates the average monthly humidity levels in Swanage, 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.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%85%79%81%71%76%82%91%92%92%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Swanage

As May arrives in Swanage, the UV Index rises to 7, indicating a high exposure category that necessitates taking precautions under the sun. This marks a continuation of increasing UV levels since the year began, with April showing a UV Index of 6. In comparison, January's UV Index started at a low 2, gradually climbing through the months. As we move into the sunnier months of June and July, the UV Index will reach its peak of 8, emphasizing the importance of sun protection during outdoor activities. Therefore, in May, beachgoers and sun lovers should be mindful of their burn time of just 25 minutes to enjoy the sun safely. For further details on the UV Index in Swanage, visit Swanage UV Index.

Maximum UV Index Levels in Swanage for May

The chart shows the monthly maximum UV Index (UVI) for Swanage 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.
JanFebMarAprMayJunJulAugSepOctNovDec234678876421
Data source: Swanage 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 Swanage

May in Swanage, United Kingdom, is a delightful prelude to summer, boasting 414 hours of sunshine that outshine the earlier months. Transitioning from the chilly winter, when January only offers 107 hours, the days grow significantly longer and sunnier, with April already seeing a boost to 354 hours. As spring blooms, the increase in sunlight becomes particularly pronounced, making May one of the sunniest months of the year in this picturesque coastal town. This trend of abundant sunshine continues into June and July, peaking at 435 hours in July before settling down slightly in August, still favorably high at 395 hours. Overall, May's bright days invite both locals and visitors to revel in the beauty of Swanage’s beaches and landscapes, setting the stage for a glorious British summer.

Monthly Sunshine Duration in Swanage: May Highlighted

The May sunshine duration represents the total number of hours Swanage 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.
JanFebMarAprMayJunJulAugSepOctNovDec107h152h232h354h414h416h435h395h333h262h169h124h
Data source: Swanage May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Swanage During May

In Swanage, the likelihood of sunny weather experiences a notable shift as the year progresses. Beginning with a modest 21% in January, the chance of sun gradually climbs, reaching 59% by April, marking a promising start to spring. However, in May, this likelihood dips to 42%, highlighting a slight decrease after the peak month of April, suggesting that while sunny days are still probable, they may become less frequent as the early summer approaches. June follows with a further decline to 31%, crafting a narrative of fluctuating sunshine that encourages visitors to embrace May’s mix of sunny spells and refreshing showers, typical of the British coastal charm. Overall, May presents a balanced blend of fair weather opportunities, perfect for enjoying Swanage’s scenic beauty.

Percentage of Sunny Days in May in Swanage

The chart illustrates the percentage of sunny days in Swanage 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 Swanage experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec21%26%40%59%42%31%45%36%37%30%37%22%
Data source: Swanage May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Swanage in May

As spring blossoms into summer, Swanage, United Kingdom, experiences a remarkable increase in daylight duration, with May showcasing a delightful 15 hours of sunlight. This marks a significant leap from the 13 hours in April and sets the stage for the longest days of the year ahead. Following May, June peaks at 16 hours, offering ample opportunities for outdoor adventures. As summer wanes into autumn, daylight begins to taper off, reducing to 12 hours in September and further down to 10 hours by October. This seasonal rhythm highlights the transition from the vibrant energy of spring and summer back into the cozy embrace of autumn and winter, where daylight once again dips to 8 hours by December. The cyclical nature of sunlight in Swanage not only enriches the landscape but also invites residents and visitors alike to savor the beauty of each season.

Average Daylight Hours in Swanage for May

The chart illustrates the variation in daylight duration in Swanage throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 31m10h 2m11h 55m13h 50m15h 30m16h 22m15h 54m14h 25m12h 34m10h 39m8h 57m8h 2m
Data source: Swanage daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Swanage

In Swanage during May, the wind picks up slightly with an average speed of 6.9 m/s (15 mph), reflecting a transitional period as spring gives way to summer. This month's winds are a bit more robust than April's calmer 5.4 m/s (12 mph), showing a rebound from the softer breezes of early spring. However, compared to the blustery peak of February at 8.4 m/s (19 mph), May provides a more moderate experience for visitors and locals alike. As the temperatures rise, the gentle gusts create a pleasant atmosphere, perfect for seaside strolls and outdoor activities, while hinting at the dwindling winds that characterize the upcoming summer months. Overall, May's winds embody a sweet spot in Swanage's meteorological calendar, balancing comfort with a refreshing breeze.

Average May Wind Speed in Swanage

The chart displays monthly wind speed patterns in Swanage, 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.
JanFebMarAprMayJunJulAugSepOctNovDec8.08.46.85.46.9 m/s4.65.26.15.77.56.78.0
Data source: Swanage May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Swanage Compares to Other Months

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

When comparing the weather in May and January, May typically experiences milder temperatures, with an average of 12°C (54°F) compared to January's cooler average of 8°C (46°F). Additionally, May boasts higher maximum temperatures, reaching up to 19°C (67°F), whereas January peaks at only 13°C (56°F). Precipitation levels are higher in January with 73 mm (2.9 in) over 11 days compared to May's 55 mm (2.1 in) over 9 days; however, January’s humidity is notably higher at 91% versus May’s 79%. For more detailed information, visit Swanage weather in January.

When comparing the weather in May and February, it's evident that May offers milder temperatures, with a minimum of 6°C (43°F) and an average of 12°C (54°F), peaking at 19°C (67°F). In contrast, February experiences cooler conditions, beginning at a minimum of 0°C (32°F) and averaging 8°C (47°F) with a maximum of only 12°C (55°F). Additionally, February tends to be wetter, receiving 74 mm (2.9 in) of precipitation over 13 days compared to May's 55 mm (2.1 in) across 9 days. Humidity levels also differ, with February seeing a higher average of 89% compared to May's 79%. For more detailed insights, check out Swanage weather in February.

When comparing the weather in May and March, it’s clear that May offers warmer temperatures, with a minimum of 6°C and an average of 12°C, reaching a maximum of 19°C. In contrast, March has colder conditions, featuring a minimum of -1°C and an average temperature of 8°C. Additionally, May experiences less precipitation, with 55 mm over 9 days, while March has more substantial rainfall at 74 mm across 14 days. Humidity levels are also slightly lower in May at 79%, compared to March's 86%. For more detailed information on March weather, visit Swanage weather in March.

In comparing the weather of May to that of April, we notice a noticeable increase in temperatures, with May boasting a minimum of 6°C (43°F), an average of 12°C (54°F), and a maximum of 19°C (67°F). In contrast, April's temperatures range from a minimum of 3°C (38°F) to a maximum of 16°C (61°F), resulting in a cooler overall average of 9°C (49°F). Additionally, May experiences more precipitation, totaling 55 mm (2.1 in) over 9 days, while April has less rainfall at 36 mm (1.4 in) across 6 days. Interestingly, April's humidity level is slightly higher at 85%, compared to May's 79%. For more details on April weather, check out Swanage weather in April.

In comparing the weather between May and June, we see a gradual warming trend. May features a minimum temperature of 6°C (43°F), with an average of 12°C (54°F) and a maximum of 19°C (67°F). June, on the other hand, starts warmer with a minimum of 11°C (51°F), an average of 15°C (59°F), and a maximum of 20°C (68°F). Both months experience similar levels of precipitation, with May receiving 55 mm (2.1 in) and June slightly higher at 69 mm (2.7 in), both spread over 9 days. Humidity remains consistent, with May at 79% and June slightly increasing to 80%. For more details on June weather, you can visit Swanage weather in June.

The weather in May is generally cooler and wetter compared to July. In May, temperatures range from a minimum of 6°C (43°F) to a maximum of 19°C (67°F), averaging around 12°C (54°F), accompanied by an average precipitation of 55 mm (2.1 in) over 9 days and a humidity level of 79%. In contrast, July experiences milder temperatures, with a minimum of 13°C (56°F) and a maximum of 21°C (71°F), averaging 17°C (63°F). Rainfall in July is slightly less, at 46 mm (1.8 in) over 8 days, and humidity decreases to 71%. For more specific information on July weather, you can check Swanage weather in July.

In May, the weather tends to be cooler with average temperatures ranging from a minimum of 6°C (43°F) to a maximum of 19°C (67°F), while in August, temperatures are warmer, averaging between 13°C (55°F) and 24°C (75°F). Though May receives about 55 mm (2.1 in) of precipitation over 9 days, August experiences slightly more rainfall at 71 mm (2.8 in) over the same number of days. Humidity levels are relatively similar, with May at 79% and August slightly lower at 76%. For a closer look at the August climate conditions, you can visit Swanage weather in August.

May and September present a pleasant transition in weather, with each month offering its own characteristics. 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 sees about 55 mm (2.1 in) of precipitation over 9 days, accompanied by a moderate humidity level of 79%. In contrast, September is slightly warmer, with temperatures varying from 11°C (52°F) to 21°C (71°F) and an average of 16°C (62°F). It also has a comparable precipitation level of 54 mm (2.1 in) over the same number of rainy days, though humidity is slightly higher at 82%. For a detailed look at September weather, visit Swanage weather in September.

May and October exhibit similar temperature ranges, with both months experiencing minimum temperatures around 6°C (43°F) and maximums reaching 19°C (67°F). However, October typically enjoys a slightly warmer average temperature of 14°C (58°F), compared to May’s 12°C (54°F). In terms of precipitation, October is notably wetter, receiving 137 mm (5.4 in) over 17 days, which is a significant increase compared to May's 55 mm (2.1 in) over just 9 days. This results in a higher humidity level for October, averaging 90% compared to May's 79%. For more detailed insights on October weather, you can check Swanage weather in October.

When comparing the weather in May and November, notable differences emerge. May typically offers warmer temperatures, with an average of 12°C (54°F) and highs reaching up to 19°C (67°F), while November features somewhat cooler average temperatures of 11°C (52°F) and maximums around 16°C (61°F). Precipitation is also higher in November, with 106 mm (4.2 in) falling over 16 days compared to May's 55 mm (2.1 in) over just 9 days. Additionally, humidity levels are more pronounced in November, averaging 92% compared to May's 79%. Overall, May tends to be milder and drier, while November is cooler and wetter, making it a significant transition into winter. For more detailed insights, you can check Swanage weather in November.

In comparison to May, December experiences cooler temperatures, with an average of 9°C (49°F) compared to May's 12°C (54°F). The maximum temperatures in December reach only 14°C (57°F), while May sees highs of 19°C (67°F). Additionally, December is significantly wetter, receiving 129 mm (5.1 in) of precipitation over 17 days, compared to May's 55 mm (2.1 in) over just 9 days. The heightened humidity in December, at 92%, also adds to the sensation of chill compared to the milder humidity of 79% in May. For more insights on December weather, you can check Swanage weather in December.

Compare Swanage's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Swanage

As May unfolds in Swanage, the weather presents a delightful transition from the chill of spring to the warmth of early summer. With average temperatures rising to a pleasant 12°C (54°F) and maximums reaching 19°C (67°F), the allure of outdoor activities beckons. However, residents and visitors should be prepared for the occasional rain, as the month sees about 55 mm (2.1 in) of precipitation over 9 days, paired with a relatively high humidity of 79%. This makes May noticeably more humid compared to the preceding months, creating lush scenery perfect for enjoying the stunning coastal views. For a deeper insight into the yearly weather patterns, explore the complete Swanage Climate information.