Last updated: February 24, 2025
In May, Greenwich experiences a vibrant transition into warmer weather, with maximum temperatures peaking at 31°C (89°F) and an average of 16°C (61°F). The month is characterized by a notable variance in temperature, dipping to a cool 2°C (36°F) on the colder days. With 114 mm (4.5 in) of precipitation spread over 12 rainy days, residents can expect a mix of sunshine and showers, contributing to an average humidity level of 69%. This blend of warm days, occasional rain, and lush greenery makes May a captivating month in Greenwich.
In May, Greenwich experiences a delightful transition into warmer weather, marking a significant shift from the brisk temperatures of earlier months. With minimum temperatures rising to 2°C (36°F) and average highs reaching a pleasant 31°C (89°F), the month exudes a sense of warmth and vitality. This seasonal change is illustrated by the substantial jump in average temperatures to 16°C (61°F), making outdoor activities increasingly inviting. As the chill of winter recedes, May not only ushers in lush greenery and blooming flora but also sets the stage for the hotter months ahead, paving the way for the cheerful warmth that characterizes the summer. It’s a perfect time to embrace the outdoors and soak up the sun as the community bids farewell to the cold.
In May, Greenwich experiences a notable consistency in precipitation, mirroring the 114 mm (4.5 in) recorded in April. With 12 rainy days, this month maintains the trend of spring showers that begin in earnest and set the stage for the lush summer ahead. While both April and May share similar precipitation levels, May’s rainfall intensity supports the vibrant growth of local flora, ensuring that parks and gardens are in full bloom. This steady pattern of rainfall highlights how Greenwich transitions from the wetter months of spring into the more variable summer season, promising continued vibrancy as warmer weather approaches.
In Greenwich, United States, the month of May marks a noticeable shift in humidity levels as the region transitions from spring to summer. With an average humidity of 69%, May offers a refreshing change from the dampness of earlier months, such as January's 84% and April's 78%. This decline reflects a trend towards drier conditions as summer approaches, evident in the consistent humidity of 69% in both May and June. As the year progresses, humidity levels generally trend downwards, reaching a low of 62% in July before gradually rising again in the fall. Overall, May serves as a pivotal month in Greenwich, providing a comfortable balance as temperatures rise and the lushness of summer begins to unfold.
As May unfolds in Greenwich, United States, residents and visitors should be prepared for a significant rise in sun intensity, with the UV Index peaking at 10. This places May in the "very high" exposure category, which means that unprotected skin can burn in as little as 15 minutes. This trend marks a shift from the earlier months; while January and February had moderate levels with an index of 3 and 5 respectively, there is a steady escalation leading to April, where the UV Index reached 8. As we transition into the summer months, the UV Index remains at this elevated level, with both June and July maintaining an index of 10. To protect against harmful UV radiation during this peak season, it's crucial to stay vigilant and apply sunscreen regularly. For more detailed information on UV levels throughout the year, check out Greenwich UV Index.
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As spring gives way to summer, May in Greenwich, United States, shines brightly with 275 hours of glorious sunshine, marking a delightful peak in daylight hours. The trend of increasing sunshine continues from the previous months—with March's 252 hours and April's 241 hours—setting the stage for a cheerful transition into the sun-soaked summer months ahead. This gradual ascent to June, which boasts an impressive 313 hours, showcases the allure of May as nature awakens in full bloom, inviting residents to bask in the warmth and enjoy outdoor activities. The pattern of longer days contributes to an uplifting atmosphere, making May a truly radiant time in this charming locale.
In Greenwich, United States, the likelihood of sunny weather in May hovers around 41%, indicating a modest chance for bright days as spring transitions into summer. This percentage is slightly below the peak sunny periods of March and November, which boast chances of 56% and 55%, respectively. As we observe the trend from winter to late spring, January starts strong with 49% sunshine likelihood but begins to decline through April before stabilizing in May. Overall, while May's chances aren't the highest, they reflect the fluctuating nature of early summer weather, suggesting that while clear skies can be expected occasionally, it may also be wise to prepare for some clouds.
As winter fades, Greenwich, United States experiences a remarkable transformation in daylight duration. Starting with a modest 9 hours in January, the days gradually lengthen, with a noticeable surge in April, reaching 13 hours as spring fully blooms. By May, locals enjoy 14 hours of daylight, a highlight of the month that beckons outdoor activities and social gatherings. This trend continues into June, peaking at 15 hours before beginning a gentle decline through the summer months. As the year progresses, daylight diminishes back to 12 hours in September, before settling into the shorter days of autumn and winter, showcasing the ever-changing rhythm of nature.
In May, Greenwich experiences an average wind speed of 3.1 m/s (7 mph), marking a slight dip from the breezy conditions of earlier spring months. This trend reflects a gradual decline in wind speeds as the season progresses, transitioning into the summer months when the average drops even further. Notably, the winds in May remain relatively stable compared to the fluctuations seen in previous months, suggesting a gentle, calming atmosphere ideal for outdoor activities. As July and August approach, the average wind speed continues to decrease, indicating a shift toward the more tranquil weather characteristic of summer in Greenwich.
The weather in Greenwich 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 Greenwich and find detailed weather information for every month.
May and January present contrasting weather patterns. In May, temperatures are much milder, ranging from a minimum of 2°C (36°F) to a comfortable average of 16°C (61°F), peaking at 31°C (89°F). This month also experiences higher humidity at 69% and more rainfall, with approximately 114 mm (4.5 in) over 12 days. In stark contrast, January sees a significant drop in temperatures, with a minimum of -18°C (0°F) and an average of 0°C (33°F), reaching a maximum of 18°C (64°F). The precipitation decreases to 69 mm (2.7 in) over just 8 days, but humidity is higher at 84%. For more details on January conditions, you can check Greenwich weather in January.
May and February present stark contrasts in weather patterns. In May, temperatures range from a chilly 2°C (36°F) at night to a warm 31°C (89°F) during the day, averaging around 16°C (61°F). This month experiences more moderate humidity at 69% and a total of 114 mm (4.5 in) of precipitation over about 12 days. Conversely, February is much colder, with temperatures dipping as low as -16°C (3°F) and peaking at 20°C (68°F), resulting in a much lower average of 2°C (35°F). February also has higher humidity levels at 82% and slightly less precipitation at 101 mm (4.0 in) over 11 days. For more details on February's climate, you can visit Greenwich weather in February.
In comparing the weather between May and March, May generally offers warmer temperatures, with an average of 16°C (61°F) compared to March's chilling average of 5°C (41°F). While March experiences a minimum temperature that can plunge to -10°C (15°F), May stays significantly milder, with lows around 2°C (36°F). Additionally, May sees more days of precipitation, with rainfall occurring on 12 days and totaling 114 mm (4.5 in), whereas March has slightly less at 93 mm (3.7 in) over 10 days. Humidity levels also vary, being higher in March at 81% compared to May's 69%, creating a richer, albeit cooler atmosphere in March. For more specific details about March weather in Greenwich, you can visit Greenwich weather in March.
In comparing the weather of May and April, we can see notable differences in temperature and humidity. May experiences a minimum temperature of 2°C (36°F), with an average of 16°C (61°F) and a maximum of 31°C (89°F), showcasing a significant warming trend compared to April, which has a minimum of -2°C (30°F), an average of 10°C (51°F), and a maximum of 27°C (81°F). Both months record the same amount of precipitation at 114 mm (4.5 in) over 12 days; however, May is slightly less humid, registering at 69% compared to April's 78%. For a detailed look at the weather conditions in April, you can visit Greenwich weather in April.
In comparing May and June weather, June typically offers warmer temperatures with a minimum of 9°C (49°F) and an average of 21°C (71°F), in contrast to May's cooler 2°C (36°F) minimum and 16°C (61°F) average. The maximum temperature in June reaches up to 34°C (93°F), surpassing May’s peak of 31°C (89°F). While both months experience 12 days of precipitation, June sees a slight decrease in rainfall, averaging 91 mm (3.6 in) compared to May's 114 mm (4.5 in). Interestingly, humidity levels remain constant at 69% for both months, making for a consistently humid environment. For more detailed weather information, you can check Greenwich weather in June.
In May, the weather features a wider range of temperatures, with a minimum of 2°C (36°F) and a maximum reaching 31°C (89°F), resulting in an average temperature of 16°C (61°F). With 114 mm (4.5 in) of rainfall over 12 days and a humidity level of 69%, May tends to be both wet and moderately warm. In contrast, July sees a more stable and warmer climate, with minimum temperatures around 16°C (60°F) and maximum temperatures peaking at 35°C (96°F), bringing the average up to 25°C (77°F). Although July experiences slightly more precipitation at 143 mm (5.6 in) over 13 days, the humidity dips to 62%, contributing to a more comfortable summer feel. For more details, check Greenwich weather in July.
May and August exhibit distinct differences in weather patterns. In May, temperatures range from a cool 2°C (36°F) to a warm 31°C (89°F), with an average of 16°C (61°F). The month is relatively wetter, receiving 114 mm (4.5 in) of rain over 12 days, accompanied by a higher humidity level of 69%. In contrast, August features a more moderate temperature range, with minimums of 15°C (59°F) and maximums of 34°C (93°F), leading to a pleasant average of 24°C (75°F). Although August sees slightly more precipitation at 123 mm (4.8 in) across 14 days, the humidity is lower at 65%. For more detailed insights on weather during this month, visit Greenwich weather in August.
May and September present distinct yet favorable weather conditions. In May, temperatures range from a cool minimum of 2°C (36°F) to a warm maximum of 31°C (89°F), offering an average of 16°C (61°F). This month also experiences considerable rainfall, with 114 mm (4.5 in) over 12 days, and a humidity level of 69%. In contrast, September tends to be milder, with a minimum temperature of 8°C (47°F) and a maximum of 33°C (91°F), yielding a pleasant average of 20°C (69°F). Precipitation is slightly lower at 98 mm (3.8 in) across just 9 days, and humidity remains similar at 68%. The transition from May to September showcases a shift towards warmer, drier conditions. For more details on September weather, visit Greenwich weather in September.
May and October display similar temperature ranges, with average highs slightly favoring October at 32°C (90°F) compared to May's 31°C (89°F). However, May tends to be warmer overall, with average temperatures reaching 16°C (61°F), just above October's average of 15°C (60°F). In terms of precipitation, October sees a slight increase, with 132 mm (5.2 in) over 11 days, compared to May's 114 mm (4.5 in) over 12 days. Humidity levels are also a bit higher in October, sitting at 74% versus May's 69%. For a more detailed look at October weather, you can visit Greenwich weather in October.
May and November present strikingly different weather patterns. In May, temperatures range from a mild minimum of 2°C (36°F) to a warm maximum of 31°C (89°F), with an average temperature of 16°C (61°F). The month experiences significant rainfall, averaging 114 mm (4.5 in) over approximately 12 days, contributing to a humidity level of 69%.
In contrast, November's temperatures dip markedly, with a minimum of -9°C (15°F) and a maximum of 23°C (74°F), leading to an average of only 8°C (46°F). The month sees less rainfall, totaling 86 mm (3.4 in) spread across about 9 days, accompanied by a higher humidity level of 82%. For more insights, you can check out Greenwich weather in November.
May and December present contrasting weather conditions that define the transition from spring to winter. In May, temperatures range from a mild 2°C (36°F) at night to a warm 31°C (89°F) during the day, with an average temperature of 16°C (61°F). The month sees an average humidity of 69% and 114 mm (4.5 in) of precipitation over approximately 12 days. In contrast, December brings colder temperatures, with a minimum of -12°C (11°F) and a maximum of 17°C (63°F), averaging just 3°C (38°F). This winter month experiences slightly less precipitation, totaling 111 mm (4.4 in) across 11 days, along with higher humidity at 80%. For more specific insights into December weather patterns, you can explore Greenwich weather in December.
As spring unfolds in Greenwich, May showcases a delightful transformation in weather, marked by a pleasant shift towards warmer temperatures and blooming landscapes. With an average temperature that leans significantly higher than the chill of early months, May stands out, though it occasionally surprises with cooler nights. The 69% humidity adds a richness to the air, further enhancing the feeling of warmth. However, the month is also characterized by its share of rainfall, with about 12 days experiencing precipitation, making it one of the wetter periods. This unique blend of warmth and moisture sets the stage for the lush vibrancy typical of late spring in the region. For a more in-depth look at May's climate and its variations, check out Greenwich Climate.