May Weather in Falmouth, United States

Last updated: February 24, 2025

May in Falmouth, United States, offers a delightful transition into spring, characterized by a maximum temperature of 20°C (67°F) and a cozy average of 12°C (54°F). Despite a few cool days, with a minimum temperature around 4°C (40°F), the month invites outdoor activities. However, prepare for some rain, as 119 mm (4.7 in) of precipitation falls over an average of 13 days, contributing to a humidity level of 75% that adds to the lush and vibrant surroundings. Embrace the beauty of May in Falmouth, where the blend of warmth and refreshing showers brings nature to life.

May Temperature in Falmouth

In Falmouth, United States, May marks a delightful transition into warmer weather, showcasing temperatures that truly reflect the onset of spring. With minimums rising to 4°C (40°F) and averages reaching 12°C (54°F), residents can finally shed their winter layers. The maximum temperatures can soar up to 20°C (67°F), providing ideal conditions for outdoor activities and blooming gardens. This month not only breaks away from the chill of earlier months but also sets the stage for the summer warmth that follows in June. The gradual climb in temperature from April to May highlights a remarkable shift towards a more temperate climate, inviting the community to embrace the vibrancy of the season.

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

The chart illustrates May temperature patterns in Falmouth, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec353638465463717267604940
Data source: Temperature data for Falmouth 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 Falmouth

In May, Falmouth experiences a moderate ebb and flow in its precipitation levels, with 119 mm (4.7 in) of rain falling over the course of 13 days. This marks a slight decline from the wetter April, yet maintains the trend of spring showers that contribute to lush landscapes. As the month progresses towards summer, the frequent, albeit lighter, rainfall prepares the region for drier months ahead, with June typically seeing a reduction to 90 mm (3.5 in) over just 10 days. Meanwhile, May’s rainfall is crucial for sustaining local flora and replenishing waterways, acting as a bridge between the more intense precipitation of early spring and the drier conditions of mid-summer.

May Precipitation Trends in Falmouth

The chart displays monthly precipitation patterns in Falmouth, 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.
JanFebMarAprMayJunJulAugSepOctNovDec93118116134119908486117168103129
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Falmouth

In Falmouth, United States, the humidity in May typically reflects a gradual decline from the winter months, registering at a comfortable 75%. This marks a notable decrease from the 84% seen in January and February and continues the downward trend observed since April, which recorded 79% humidity. As spring transitions into summer, this slight dip not only enhances outdoor activities but also indicates a shift towards more pleasant weather conditions. Following May, humidity levels slightly rise again in June at 78%, maintaining a generally stable range throughout the summer months of July and August. Overall, May serves as a transitional period, welcoming a refreshing change in the climate in Falmouth.

May Average Humidity in Falmouth

This chart illustrates the average monthly humidity levels in Falmouth, 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.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%82%79%75%78%76%76%76%75%80%80%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Falmouth

In May, Falmouth experiences a significant rise in UV intensity, with the UV Index peaking at 9, categorized as very high. This trend signals the approach of summer, where sun exposure becomes increasingly intense, shortening burn time to just 15 minutes. As the month progresses, residents and visitors alike should be aware of the heightened risk of skin damage from UV rays, a stark contrast from the more moderate indices seen earlier in the year. Emphasizing sun safety is crucial, as May's UV levels mirror those of the following months. With the UV Index climbing higher as summer approaches, it's essential to stay informed and protect your skin. For more insights on UV levels throughout the year, visit Falmouth UV Index.

Maximum UV Index Levels in Falmouth for May

The chart shows the monthly maximum UV Index (UVI) for Falmouth 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.
JanFebMarAprMayJunJulAugSepOctNovDec3468910998642
Data source: Falmouth 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 Falmouth

As May unfolds in Falmouth, the days blossom with sunlight, boasting an impressive 298 hours of sunshine—an inviting prelude to the summer months. This vibrant month marks a significant uptick from the previous four months, reflecting the region's gradual transition into a sunnier season. The warm glow continues to intensify, peaking in July with 346 hours, before gently tapering off in late summer. Notably, the months leading up to May, from January to April, see a steady ascent in sunshine hours, laying a solid foundation for the cheerful days ahead. As one savors the delightful May sunshine, it's clear that the cycle of brightening skies is well underway, setting the stage for summer adventures.

Monthly Sunshine Duration in Falmouth: May Highlighted

The May sunshine duration represents the total number of hours Falmouth 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.
JanFebMarAprMayJunJulAugSepOctNovDec142h184h258h243h298h326h346h330h280h236h203h165h
Data source: Falmouth May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Falmouth During May

In Falmouth, May experiences a 41% chance of sunny weather, mirroring the probabilities seen in January and July. The month follows a trend of fluctuating sunshine likelihood throughout the year, peaking in March with a robust 60% chance, before slowly declining into the summer months. April offers a promising 46%, suggesting a smooth transition into May. Interestingly, as the year progresses, the chance of sunny days holds relatively steady around the 40% mark, with notable increases in September and November. This pattern indicates that while May doesn't boast the highest sunshine odds, it certainly maintains a balanced expectation for pleasant, sunny days as spring unfolds in Falmouth.

Percentage of Sunny Days in May in Falmouth

The chart illustrates the percentage of sunny days in Falmouth 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 Falmouth experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec41%31%60%46%41%38%41%36%50%45%54%29%
Data source: Falmouth May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Falmouth in May

As spring transitions to summer in Falmouth, the daylight duration steadily increases, reaching a peak in June. In May, residents enjoy 14 hours of daylight, a notable rise from the 13 hours in April, highlighting the joyful arrival of longer, sunnier days. This trend of gradually increasing sunlight continues into June, where daylight extends to 15 hours, providing ample time for outdoor activities. As summer wanes, daylight starts to recede, dipping to 14 hours in July, then tapering off to 13 hours in August. Following this peak, the daylight hours consistently decline toward the year’s end, with both November and December offering a brisk 9 hours of light. This annual ebb and flow of daylight in Falmouth reflects the vibrant cycle of seasons and the changing rhythms of life in this charming coastal town.

Average Daylight Hours in Falmouth for May

The chart illustrates the variation in daylight duration in Falmouth throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 32m10h 36m11h 58m13h 21m14h 32m15h 7m14h 48m13h 45m12h 25m11h 2m9h 49m9h 12m
Data source: Falmouth daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Falmouth

In May, Falmouth experiences a gentle decline in average wind speeds, averaging 6.1 m/s (14 mph)—slightly lower than the earlier months. This trend marks the start of a gradual decrease as the summer approaches, with winds tapering off from the brisk breezes of spring. While January to April sees consistent wind speeds around 6.5 to 6.8 m/s (15 mph), May's lull hints at the calmer, warmer days ahead. As June arrives with an equal wind speed, it seems both months may offer a tranquil respite, perfect for those looking to enjoy Falmouth's coastal beauty without the strong gusts that characterize the earlier seasons. Overall, May's winds invite a serene transition into summer, providing an ideal backdrop for outdoor activities and seaside relaxation.

Average May Wind Speed in Falmouth

The chart displays monthly wind speed patterns in Falmouth, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6.86.76.86.56.1 m/s6.15.24.95.96.66.66.4
Data source: Falmouth May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Falmouth Compares to Other Months

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

May presents a much milder climate compared to January, with temperatures ranging from a minimum of 4°C (40°F) to a pleasant maximum of 20°C (67°F), averaging 12°C (54°F). In contrast, January experiences much colder conditions, where temperatures can drop as low as -16°C (4°F) and reach a maximum of 13°C (55°F), averaging only 2°C (35°F). Precipitation levels in May are higher, with 119 mm (4.7 in) spread over 13 days, whereas January sees 93 mm (3.7 in) over just 9 days. Additionally, January's humidity at 84% is notably higher than May's 75%, contributing to its chilly feel. For a more detailed look at January weather, visit Falmouth weather in January.

In comparing the weather of May and February, May emerges as a significantly warmer month with average temperatures ranging from a minimum of 4°C (40°F) to a maximum of 20°C (67°F), while February experiences much colder temperatures, with averages between -12°C (11°F) and a peak of 12°C (53°F). May also sees nearly equal precipitation at 119 mm (4.7 in) over 13 days, closely mirroring February’s 118 mm (4.6 in) over 12 days, although February's overall humidity is slightly higher at 84% compared to May's 75%. For a more detailed look at the specific conditions during February, you can check out Falmouth weather in February.

In comparing the weather of May and March, May generally presents a milder and more inviting climate. Temperatures in May range from a minimum of 4°C (40°F) to a pleasant maximum of 20°C (67°F), with an average of 12°C (54°F). In contrast, March experiences a much chillier range, starting at a low of -9°C (17°F) and peaking at just 13°C (55°F), with an average temperature of only 3°C (38°F). Both months see similar precipitation levels, with May receiving slightly more at 119 mm (4.7 in) over 13 days compared to March's 116 mm (4.6 in) over 10 days. However, March's higher humidity at 82% compared to May's 75% can make the cooler temperatures feel even more brisk. For more details, visit Falmouth weather in March.

In comparing the weather between April and May, May tends to be warmer with average temperatures rising from 8°C (46°F) in April to 12°C (54°F) in May. The maximum temperature also increases, reaching 20°C (67°F) in May compared to 16°C (61°F) in April. However, April sees slightly more precipitation, totaling 133 mm (5.3 in) over 12 days compared to May's 119 mm (4.7 in) over 13 days. Despite the marginally lower humidity in May at 75% compared to 79% in April, both months exhibit relatively similar conditions. For a more detailed look at April weather, check out Falmouth weather in April.

May and June present a noticeable shift in weather patterns. In May, temperatures range from a cool 4°C (40°F) to a comfortable maximum of 20°C (67°F), with an average of 12°C (54°F). The month is also characterized by higher precipitation, totaling 119 mm (4.7 in) over 13 days, along with a humidity level of 75%. In contrast, June offers milder conditions, with minimum temperatures starting at 11°C (52°F) and peaking at 23°C (74°F), resulting in an average of 17°C (63°F). Precipitation decreases to 90 mm (3.5 in) spread over 10 days, while humidity slightly increases to 78%. For more detailed insights, check out Falmouth weather in June.

May and July showcase distinct weather patterns, with May characterized by cooler temperatures and more frequent rainfall. In May, temperatures range from a minimum of 4°C (40°F) to a maximum of 20°C (67°F), with an average of 12°C (54°F) and significant precipitation of 119 mm (4.7 in) occurring over 13 days, accompanied by high humidity at 75%. In contrast, July offers a much warmer climate, with temperatures spanning from a minimum of 16°C (61°F) to a maximum of 27°C (81°F) and an average of 22°C (71°F). Precipitation decreases to 84 mm (3.3 in) over just 9 days, while the humidity slightly rises to 76%. For more details on July weather, you can check Falmouth weather in July.

May and August present distinct contrasts in weather patterns. In May, temperatures range from a chilly minimum of 4°C (40°F) to a comfortable maximum of 20°C (67°F), with an average of 12°C (54°F). This month also sees significant precipitation, totaling 119 mm (4.7 in) over about 13 days, contributing to a humidity level of 75%. Conversely, August brings warmer conditions, with temperatures starting at a mild minimum of 17°C (63°F) and peaking at 26°C (80°F), leading to a higher average of 22°C (73°F). The month experiences less rainfall, totaling 86 mm (3.4 in) over just 9 days, while maintaining a slightly higher humidity of 76%. For further details, you can check Falmouth weather in August.

In comparing the weather of May and September, we see a shift towards warmer temperatures in September. May experiences a minimum temperature of 4°C (40°F) and a maximum of 20°C (67°F), with an average of 12°C (54°F). In contrast, September features milder temperatures, with lows around 14°C (57°F) and highs reaching 25°C (78°F), maintaining an overall average of 20°C (67°F). Precipitation levels are similar, with May receiving 119 mm (4.7 in) over 13 days and September slightly less at 117 mm (4.6 in) over 10 days. Both months share a consistent humidity level of 75%, making for a comfortable yet occasionally damp climate. For more detailed insights into September weather, check out Falmouth weather in September.

May and October exhibit some similarities in their weather patterns, yet they also showcase notable differences. In May, temperatures range from a minimum of 4°C (40°F) to a maximum of 20°C (67°F), with an average temperature of 12°C (54°F). This month sees about 119 mm (4.7 in) of precipitation over 13 days, while maintaining a consistent humidity of 75%. Conversely, October experiences slightly warmer temperatures, with a minimum of 4°C (39°F), an average of 15°C (60°F), and a maximum of 22°C (72°F). It also has higher precipitation levels, totaling 168 mm (6.6 in) across 12 days, yet shares the same humidity rate of 75%. For a deeper look at the specific conditions in October, you can explore Falmouth weather in October.

May and November present a fascinating contrast in weather patterns. In May, temperatures range from a chilly 4°C (40°F) at night to a pleasant 20°C (67°F) during the day, making it a mild month characterized by blooming nature. With an average precipitation of 119 mm (4.7 in) spread over about 13 days, May can be quite rainy but is generally characterized by a relative humidity of 75%.

In contrast, November's temperatures dip significantly, with minimums dropping to -6°C (21°F) and daytime highs peaking at a similar 19°C (67°F). This month sees slightly lower precipitation at 103 mm (4.0 in) over 10 days but comes with a higher humidity level of 80%. For more detailed insights into November weather, you can check Falmouth weather in November.

May and December exhibit notably different weather patterns in Falmouth. In May, temperatures range from a minimum of 4°C (40°F) to a comfortable maximum of 20°C (67°F), with an average of 12°C (54°F). This month experiences about 119 mm (4.7 in) of precipitation over approximately 13 days, accompanied by a humidity level of 75%. In contrast, December sees colder temperatures, with a minimum of -12°C (11°F) and a maximum of 16°C (61°F); the average temperature drops to 4°C (40°F). Precipitation is slightly higher at 129 mm (5.1 in) across 11 days, and humidity is a bit higher too at 80%. For more details on the December climate, you can check the link Falmouth weather in December.

Compare Falmouth's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Falmouth

As May unfolds in Falmouth, the weather marks a delightful transition into spring, characterized by warming temperatures and blooming landscapes. With an average temperature that is notably milder than the chill of earlier months, May presents a refreshing environment for outdoor activities, despite an increase in precipitation as spring showers nurture the vibrant flora. The humidity levels also rise, contributing to a lush and green backdrop. As you plan your visit, be sure to embrace the dynamic weather and explore more about what makes this region unique at Falmouth Climate.