May Weather in Kennebunk, United States

Last updated: February 24, 2025

May in Kennebunk, United States, ushers in a delightful transition into warmer weather, with temperatures ranging from a brisk 2°C (35°F) at night to a maximum of 33°C (92°F) during the day. The average temperature settles around a comfortable 13°C (56°F), making it an inviting month for outdoor activities. However, residents and visitors should be prepared for some rain, as 71 mm (2.8 in) of precipitation falls over 9 days, accompanied by a humidity level around 72%. This mix of warmth and moisture creates a vibrant atmosphere perfect for enjoying the blossoming spring scenery.

May Temperature in Kennebunk

In Kennebunk, United States, May marks a significant transition into warmer weather, with temperatures reflecting a refreshing shift from the preceding months. The minimum temperature rises to a mild 2°C (35°F), while the average hits 13°C (56°F), offering a pleasant reprieve from the winter chill. The maximum temperature can soar up to 33°C (92°F), showcasing the potential for summer-like warmth. This month not only features the year's highest temperature range thus far, but it also serves as a precursor to the increasingly warm trends of June and July. The gradual increase in warmth from previous months underscores May as a vibrant time for outdoor activities and natural blossoming, illustrating why locals and visitors alike eagerly anticipate the height of spring in this charming coastal town.

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

The chart illustrates May temperature patterns in Kennebunk, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec282935455566727164544132
Data source: Temperature data for Kennebunk 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 Kennebunk

In May, Kennebunk experiences a relatively mild precipitation pattern, with 71 mm (2.8 in) spread across about 9 days of rain. This marks a decrease from the wetter month of April, which received 122 mm (4.8 in) over 12 days, indicating a transition into drier late spring conditions. As the month progresses, May's showers often give way to sunnier days, setting the stage for the warm and humid summer months ahead. This overall trend of declining precipitation continues into June, where totals drop slightly to 70 mm (2.8 in), further underscoring the seasonal shift. Despite this, the consistent presence of rain in early summer highlights May as a crucial month for nourishing the landscape before the hotter, drier days of summer set in.

May Precipitation Trends in Kennebunk

The chart displays monthly precipitation patterns in Kennebunk, 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.
JanFebMarAprMayJunJulAugSepOctNovDec81908112271701206570128107125
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Kennebunk

As May arrives in Kennebunk, the air begins to lighten, with humidity noticeably dipping to 72%. This decline marks a significant shift from the heavier, moisture-laden months of winter, where humidity levels were consistently above 80%. By the end of April, the region starts to see a gradual easing, paving the way for a more comfortable climate in May. Interestingly, this level of humidity remains stable into June, hinting at a transitional period before the summer heat sets in. Overall, May signifies a refreshing balance between the lingering chill of spring and the warmth that summer will soon bring, providing a delightful backdrop for outdoor activities and blooming landscapes.

May Average Humidity in Kennebunk

This chart illustrates the average monthly humidity levels in Kennebunk, 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.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%82%80%72%72%67%66%71%79%84%81%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Kennebunk

As May arrives in Kennebunk, the UV Index peaks at 9, indicating a very high risk of harm from unprotected sun exposure. This sharp increase from April's 7 underscores the need for vigilance, as the typical burn time drops to just 15 minutes. Compared to the low and moderate levels seen earlier in the year, May signals that summer is nearing, and sun safety becomes paramount. With the UV Index remaining high throughout the upcoming summer months, residents and visitors alike should prepare with adequate sun protection. For more detailed information, visit Kennebunk UV Index.

Maximum UV Index Levels in Kennebunk for May

The chart shows the monthly maximum UV Index (UVI) for Kennebunk 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.
JanFebMarAprMayJunJulAugSepOctNovDec2457910987532
Data source: Kennebunk 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 Kennebunk

As spring gracefully transitions into summer in Kennebunk, May stands out with 294 hours of sunshine, marking a delightful leap from the previous months. This upward trend in daylight is a prelude to June's peak, where the sun graces the town for an impressive 329 hours. The gradual increase from 256 hours in March_ to the vibrant May sunshine illustrates the awakening of nature and the joy of outdoor activities. Following this sunny trajectory, the months of July and August continue to bask in brilliant light, reaching their zenith with 336 hours of sunshine in August. As the months progress, the daylight begins to taper off into the fall, but May serves as a beautiful reminder of the warmth and brightness to come, igniting a spirit of adventure in the stunning coastal backdrop.

Monthly Sunshine Duration in Kennebunk: May Highlighted

The May sunshine duration represents the total number of hours Kennebunk 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.
JanFebMarAprMayJunJulAugSepOctNovDec148h182h256h244h294h329h333h336h288h216h190h174h
Data source: Kennebunk May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kennebunk During May

As May approaches in Kennebunk, the likelihood of sunny weather hovers around 37%, aligning with several months preceding it. This trend of diminished sunshine appears consistent, particularly from April to June, where the probability of sunny days remains relatively low. Interestingly, the region experiences a noticeable spike in sunshine by March, with a peak of 62%, signaling the onset of spring's potential. Following the sunny March, however, May falls back into the more clouded conditions reminiscent of January and February. As we look ahead, the sunniest months seem to emerge in the fall, suggesting that while May may not be the brightest, it serves as a bridge towards more favorable weather in the upcoming seasons.

Percentage of Sunny Days in May in Kennebunk

The chart illustrates the percentage of sunny days in Kennebunk 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 Kennebunk experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec41%37%62%37%37%39%29%32%43%37%55%33%
Data source: Kennebunk May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kennebunk in May

As spring unfolds in Kennebunk, the days grow longer and brighter, reaching a delightful peak in May with approximately 14 hours of daylight. This surge in sunlight follows a steady increase from 11 hours in March and 13 hours in April, epitomizing the vibrant awakening of nature. The month of May not only marks a transition to summer but also sets the stage for longer days ahead, peaking at a glorious 15 hours of daylight in June and July. However, as summer wanes, daylight begins to decrease again, reminding us of the cyclical nature of the seasons, with hours gradually dwindling to 9 hours by November. This rhythmic ebb and flow of daylight showcases the beauty of each season in Kennebunk, inviting both residents and visitors to savor the longer days of spring and summer.

Average Daylight Hours in Kennebunk for May

The chart illustrates the variation in daylight duration in Kennebunk throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 20m10h 30m11h 58m13h 27m14h 43m15h 21m15h13h 52m12h 26m10h 57m9h 39m8h 58m
Data source: Kennebunk daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Kennebunk

In Kennebunk, May ushers in a slight decrease in average wind speed, settling at 3.4 m/s (8 mph), a gentle shift from the breezier months of March and April. This trend marks the beginning of a transition to the calmer summer months, where July and August experience noticeably lighter winds, dropping to 2.9 m/s (6 mph) and 2.8 m/s (6 mph), respectively. Despite these softer breezes, the overall consistency in wind velocity throughout the year, hovering around 3.6 m/s (8 mph) in the cooler months, highlights Kennebunk's charmingly moderate maritime climate. As spring fades into summer, residents and visitors alike can enjoy the refreshing coastal air without being overwhelmed by gusty winds.

Average May Wind Speed in Kennebunk

The chart displays monthly wind speed patterns in Kennebunk, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.63.64.23.63.4 m/s3.52.92.83.33.43.63.7
Data source: Kennebunk May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Kennebunk Compares to Other Months

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

May and January present stark contrasts in weather. In May, temperatures range from a chilly minimum of 2°C (35°F) to a warm maximum of 33°C (92°F), averaging around 13°C (56°F). Despite the pleasant warmth, the month sees about 71 mm (2.8 in) of precipitation over 9 days, accompanied by a relative humidity of 72%. In contrast, January is significantly colder, with temperatures dipping as low as -21°C (-6°F) and peaking at 16°C (61°F), averaging a frigid -2°C (28°F). January experiences slightly more precipitation, totaling 80 mm (3.2 in) over 8 days, along with higher humidity levels at 86%. For a deeper dive into January weather specifics, check out Kennebunk weather in January.

When comparing the weather in May and February, the differences are stark. May typically enjoys milder temperatures, with a minimum of 2°C (35°F) and an average temperature of 13°C (56°F), peaking at a warm 33°C (92°F). In contrast, February presents a much colder climate, with temperatures that can plunge to a minimum of -18°C (0°F) and an average of -2°C (29°F), reaching a maximum of 20°C (68°F). Precipitation levels also vary, with May receiving 71 mm (2.8 in) over approximately 9 days, while February experiences higher precipitation at 90 mm (3.6 in) spread across 10 days. Additionally, February tends to have higher humidity, averaging 84% compared to 72% in May. For more information on February weather, check out Kennebunk weather in February.

In comparing the weather of May and March, it's evident that May offers significantly milder temperatures, with averages reaching 13°C (56°F) and highs soaring up to 33°C (92°F), while March experiences much colder conditions, with lows plummeting to -18°C (0°F) and an average of only 2°C (35°F). While March sees slightly more precipitation at 81 mm (3.2 in) over 10 days, May is not far behind with 71 mm (2.8 in) across 9 days. Additionally, humidity levels in March are slightly higher at 82%, compared to 72% in May. For a closer look at March weather specifics, you can visit Kennebunk weather in March.

In comparing the weather between April and May, it’s clear that May brings warmer temperatures with a minimum of 2°C (35°F) and an average of 13°C (56°F), compared to April's lower minimum of -4°C (26°F) and average of 7°C (46°F). Additionally, while both months experience precipitation, May receives less at 71 mm (2.8 in) over 9 days, whereas April has a higher total of 122 mm (4.8 in) over 12 days. Humidity levels also differ slightly, with April averaging 80% compared to May's 72%. For more detailed information about the weather in April, you can visit Kennebunk weather in April.

In comparing the weather of May and June, both months exhibit similar precipitation levels, with May receiving 71 mm and June slightly lower at 70 mm, each occurring over nine days. However, June tends to be warmer, with average temperatures rising from May's 13°C (56°F) to June's 19°C (66°F). The minimum and maximum temperatures also reflect this shift; June has a minimum of 5°C (41°F) and a maximum of 35°C (95°F), compared to May's range of 2°C (35°F) to 33°C (92°F). Both months share the same humidity level of 72%, indicating that the air remains consistently moist. For more detailed information, check out Kennebunk weather in June.

In comparing the weather between May and July, it's evident that July experiences warmer temperatures overall. While May starts with a minimum of 2°C and averages around 13°C, July’s minimum temperature is considerably higher at 13°C, with an average of 22°C. The maximum temperatures also show a slight increase, peaking at 34°C in July compared to May's 33°C. However, July brings more precipitation, with 120 mm falling over 11 days, while May sees less at 71 mm over 9 days. Interestingly, humidity is slightly lower in July at 67% compared to May’s 72%. This indicates that July tends to feel more comfortable despite the increased warmth. For a detailed look into July weather, you can check Kennebunk weather in July.

May and August present distinct weather patterns, showcasing the transition from spring to summer. In May, temperatures range from a chilly minimum of 2°C (35°F) to a warm maximum of 33°C (92°F), with an average temperature of 13°C (56°F). The month is marked by 71 mm (2.8 in) of precipitation over approximately 9 days, accompanied by a humidity level of 72%. In contrast, August experiences milder temperatures, with a minimum of 11°C (52°F), an average of 22°C (72°F), and the same maximum of 33°C (92°F). Precipitation in August is slightly lower at 65 mm (2.5 in), also spread over 9 days, but with a lower humidity level of 66%. For more details on August weather, you can check Kennebunk weather in August.

May and September exhibit notable differences in weather patterns, despite both months experiencing similar levels of precipitation. In May, temperatures range from a minimum of 2°C (35°F) to a maximum of 33°C (92°F), with an average temperature of 13°C (56°F). This month also sees about 71 mm (2.8 in) of rainfall over approximately 9 days, coupled with relatively high humidity at 72%. In contrast, September's temperatures are generally milder, with a minimum of 5°C (41°F), an average of 18°C (65°F), and a maximum of 32°C (90°F). It also receives similar precipitation levels at 70 mm (2.8 in) over 7 days, but with slightly lower humidity at 71%. For more detailed insights, you can check Kennebunk weather in September.

In comparing the weather between May and October, we notice several notable differences. May typically experiences a wider range of temperatures, with minimums reaching 2°C (35°F) and maximums up to 33°C (92°F), contributing to an average of 13°C (56°F). In contrast, October sees cooler temperatures, with minimums dropping to 0°C (32°F) and maximums capping at 28°C (82°F), leading to a slightly lower average of 12°C (54°F). Additionally, precipitation in October is more pronounced, totaling 128 mm (5.0 in) over 11 days compared to May's 71 mm (2.8 in) over 9 days, and the humidity is slightly higher in October at 78% versus 72% in May. For a closer look at the October weather conditions, you can visit Kennebunk weather in October.

May and November present contrasting weather conditions. In May, temperatures range from a chilly 2°C (35°F) to a warm 33°C (92°F), with an average of 13°C (56°F). The month sees around 71 mm (2.8 in) of precipitation over approximately 9 days, accompanied by a humidity level of 72%. In contrast, November experiences colder temperatures, with minima dropping to -12°C (11°F) and averaging around 5°C (42°F), while reaching a maximum of 23°C (73°F). The month is wetter, with 107 mm (4.2 in) of rainfall spread across 10 days and a higher humidity level of 84%. For a detailed look at November weather, you can refer to Kennebunk weather in November.

May and December present starkly contrasting weather conditions. In May, temperatures range from a refreshing 2°C (35°F) to a warm 33°C (92°F), with an average of 13°C (56°F). The month sees moderate precipitation of 71 mm (2.8 in) over about 9 days, accompanied by a humidity level of 72%. In contrast, December experiences much colder temperatures, with a minimum of -20°C (-4°F) and a maximum of 15°C (59°F), averaging around 0°C (33°F). The precipitation is higher at 125 mm (4.9 in) over 10 days, coupled with increased humidity at 81%. For more detailed insights, check out Kennebunk weather in December.

Compare Kennebunk's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Kennebunk

As May ushers in the vibrant hues of spring, Kennebunk experiences a delightful shift in weather that sets it apart from the chillier months preceding it. The average temperatures rise, providing a refreshing break from the cold, while the warmer days invite locals and visitors alike to relish the blooming scenery. Though precipitation is still a factor—with about nine days of rain—the lush greenery that follows enhances the charm of this coastal town. With a humidity level of 72%, the air feels pleasantly warm, making May feel much more inviting than the earlier months. For a deeper understanding of how these conditions impact the overall climate, you can explore the details found at Kennebunk Climate.