Last updated: April 22, 2025
Experience the vibrant charm of Niagara Falls in May, where the weather begins to warm up beautifully. With maximum temperatures reaching a delightful 29°C (84°F) and an average of 13°C (56°F), visitors can enjoy the blossoming spring. However, be prepared for the occasional shower, as the month sees around 101 mm (4.0 in) of rain spread across approximately 13 days, contributing to 82% humidity that adds a refreshing feel to the air. Whether you're exploring the breathtaking falls or indulging in local attractions, May offers an enchanting backdrop for unforgettable adventures amidst nature's splendor.
As May unfolds in Niagara Falls, Canada, the temperature begins to rise, marking a significant shift from the chill of winter. With a minimum of 0°C (32°F) and a comfortable average of 13°C (56°F), the month invites visitors to experience the beauty of the falls in a milder climate. The maximum temperature can soar up to 29°C (84°F), trading the icy landscapes of earlier months for vibrant spring vistas. This warming trend is evident as May's temperatures sit comfortably between the briskness of April and the heat of summer, reflecting a steady progression towards the warmer months ahead. The change in climate encourages outdoor exploration, with nature blooming anew, making it an ideal time for travelers to soak in the breathtaking sights and sounds of Niagara.
May in Niagara Falls, Canada, sees a total precipitation of 101 mm (4.0 in), working its way through an average of 13 rainy days. This period marks a slight decline from the wetter month of April, which received 116 mm (4.6 in), yet still encapsulates the spring's vitality with moderate rainfall. As the month progresses, May serves as a transitional phase, setting the stage for the drier days ahead in June, which records a notable drop to 81 mm (3.2 in) over just 10 days. The consistent, yet manageable precipitation during May contributes to the lush landscapes, making it an enchanting time to experience the beauty of Niagara Falls.
In May, Niagara Falls experiences a noticeable shift in humidity, averaging around 82%, a slight decline from the 88% recorded in both March and April. This transition signals the arrival of warmer months, as humidity levels continue to decrease leading into June, where they drop to 79%. The trend is clear: as spring gives way to summer, the air becomes less saturated, enhancing the comfort level for visitors eager to explore the majestic falls and surrounding landscapes. While January and February showcase the peak humidity at an impressive 91%, May’s more moderate levels make it an inviting time to experience the beauty of nature without overwhelming humidity. This gradual descent not only prepares the region for summer but also marks a refreshing change for locals and tourists alike enjoying the vibrant scenery of Niagara Falls.
As spring blossoms into May, Niagara Falls experiences a notable surge in UV intensity, reflected in a UV Index of 9, categorized as very high. This sharp increase from April’s 8 signifies that sun protection is paramount, as the time it takes to burn shrinks to just 15 minutes. This trend continues into June and through the summer months, where the UV Index remains elevated, highlighting the importance of vigilance against UV radiation. With each passing month from January’s low of 2 to May’s peak, it’s clear that the seasonal shift dramatically impacts sun exposure. For more detailed insights into UV levels throughout the year, check out the Niagara Falls UV Index.
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As spring transitions into summer, May shines brightly in Niagara Falls, Canada, offering an impressive 292 hours of sunlight. This is a remarkable increase from the earlier months, with sunlight hours growing steadily from 108 in January to 240 in April. May stands out as a pivotal month, marking a leap in brightness and warmth, paving the way for the long, sun-soaked days of June and July. These vibrant months, with their peak sunlight hours reaching 341 and 348 respectively, create an ideal backdrop for visitors to explore the breathtaking waterfalls and lush landscapes. The gradual rise in daylight throughout the spring not only heralds the arrival of summer but also enhances the overall experience of Niagara Falls, making May a truly radiant time to visit.
As the calendar turns to May, the likelihood of encountering sunny weather in Niagara Falls sees a promising shift, boasting a 45% chance of sun. This uptick is consistent with the gradual increase in sunshine observed through the spring months, following a 45% chance in March and a dip to 40% in April. Compared to the cloudier winter months, where January and February lingered at only 14% and 24%, respectively, May begins to usher in the warmth and light of summer. Notably, the sunny prospects in May align closely with the transitional months ahead, maintaining a competitive average alongside June and July. As visitors flock to the breathtaking falls, they can look forward to the likelihood of clear skies enhancing their experience in one of nature’s most stunning settings.
As spring unfolds in Niagara Falls, May marks a delightful transition into longer days, boasting 14 hours of daylight. This increase follows a steady rise from 9 hours in January to 11 in March and 13 in April, reflecting nature's awakening after the winter months. The trend peaks in June with 15 hours, showcasing the region’s vibrant energy. However, this summer bounty begins to taper off in the subsequent months of July and August, where daylight diminishes slightly but remains ample at 14 and 13 hours respectively. As autumn approaches, the days gradually shorten, returning to 10 hours in October and settling back to 9 hours by December, closing the yearly cycle of light in this picturesque setting.
In May, Niagara Falls experiences a gentle lull in its wind patterns, with an average wind speed of 3.5 m/s (8 mph)—the lowest of the year. This decline follows the brisk march of spring, where winds in March and April reached 4.8 m/s (11 mph) and 3.9 m/s (9 mph), respectively. As the region transitions into summer, the wind starts to pick up again in June, rising to 4.3 m/s (10 mph). Overall, May's milder breezes offer a tranquil respite before the winds strengthen in the upcoming months, creating a perfect setting to enjoy the breathtaking views of the Falls in a more serene atmosphere.
The weather in Niagara Falls 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 Niagara Falls and find detailed weather information for every month.
In comparison, May offers a significantly milder climate with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 29°C (84°F), and an average of 13°C (56°F). This month also experiences higher humidity levels at 82% and more precipitation, totaling 101 mm (4.0 in) over 13 days. In stark contrast, January presents harsh winter conditions, featuring temperatures that can plunge as low as -19°C (-1°F), with a maximum of only 14°C (58°F) and an average of -2°C (28°F). Although January has slightly less precipitation at 77 mm (3.0 in) across 12 days, the higher humidity of 91% can make the cold feel even more biting. For more detailed information on January weather, you can visit Niagara Falls weather in January.
May and February exhibit stark contrasts in weather conditions. In February, temperatures can drop as low as -19°C (-3°F), with an average of -2°C (29°F) and a maximum of only 16°C (61°F). In contrast, May welcomes warmer weather, with temperatures ranging from a chilly 0°C (32°F) to a pleasant average of 13°C (56°F) and reaching highs of up to 29°C (84°F). February also experiences higher humidity levels at 91% compared to May's 82%, coupled with slightly less precipitation—82 mm (3.2 in) over 14 days versus May’s 101 mm (4.0 in) over 13 days. For those interested in specific weather conditions during this time, Niagara Falls weather in February provides detailed insights.
In comparing the weather between May and March, we see a significant shift in temperature and precipitation patterns. May boasts milder temperatures, with a minimum of 0°C (32°F) and an average of 13°C (56°F), reaching a maximum of 29°C (84°F). In contrast, March experiences much colder conditions, starting from a minimum of -15°C (5°F) and averaging only 2°C (35°F), with a maximum of 18°C (65°F). While May has higher precipitation at 101 mm (4.0 in) over 13 days, March's precipitation totals 72 mm (2.8 in) spread over 12 days, contributing to a higher humidity level in March at 88% compared to May's 82%. For a more comprehensive look at the weather specifics during March, check out Niagara Falls weather in March.
In comparing the weather between April and May, we can see distinct differences in temperature and overall conditions. May tends to be warmer, with a minimum temperature of 0°C (32°F) and an average of 13°C (56°F), while April has a chillier minimum of -4°C (26°F) and an average of 7°C (44°F). The maximum temperatures also rise in May, reaching up to 29°C (84°F) compared to April's peak of 24°C (75°F). However, April experiences slightly more precipitation at 116 mm (4.6 in), over 14 days, whereas May has 101 mm (4.0 in) over 13 days. Humidity levels remain high in both months, with April at 88% and May at 82%. For a closer look at specific conditions, you can check out Niagara Falls weather in April.
May and June show a noticeable shift in weather patterns as spring transitions into summer. In May, temperatures range from a cool 0°C (32°F) to a warm 29°C (84°F), with an average of 13°C (56°F). The month experiences relatively high precipitation at 101 mm (4.0 in) over 13 days, contributing to a humidity level of 82%. In contrast, June sees warmer temperatures, with a minimum of 8°C (47°F) and a maximum of 30°C (87°F), averaging 19°C (67°F). Precipitation decreases to 81 mm (3.2 in) over 10 days, and humidity drops slightly to 79%. This transition signifies the approach of summer, with drier and warmer conditions characteristic of June. For more specific details about June weather, check out Niagara Falls weather in June.
May and July present distinct contrasts in weather conditions. In May, temperatures range from a chilly 0°C (32°F) at night to a pleasant maximum of 29°C (84°F) during the day, with an average of 13°C (56°F). The month sees moderate precipitation, totaling 101 mm (4.0 in) over about 13 days and a high humidity level of 82%. In comparison, July brings warmer temperatures, with nighttime lows of 15°C (58°F) and daytime highs reaching up to 32°C (90°F), averaging 23°C (73°F). While July experiences slightly more precipitation at 125 mm (4.9 in) over the same number of days, it has a lower humidity level at 77%. For more detailed information, you can check Niagara Falls weather in July.
May weather in the region tends to be cooler and more variable compared to August. While May sees temperatures ranging from a chilly 0°C (32°F) to a warm maximum of 29°C (84°F), August maintains a more consistent warmth with minimums of 13°C (56°F) and maximums peaking at 30°C (86°F). Additionally, May experiences higher precipitation with 101 mm (4.0 in) over 13 days, while August has less at 83 mm (3.3 in) across the same number of days. The humidity is also notably higher in May at 82%, compared to 72% in August, making the latter month feel slightly more comfortable. For more specific details, you can check Niagara Falls weather in August.
In May, the weather is characterized by cooler temperatures with a minimum of 0°C (32°F) and an average of 13°C (56°F), reaching a maximum of 29°C (84°F). This month also sees higher precipitation, totaling 101 mm (4.0 in) over approximately 13 days, accompanied by relatively high humidity levels at 82%. In contrast, September offers milder conditions with a minimum temperature of 7°C (44°F) and an average of 19°C (66°F), peaking at 30°C (86°F). The precipitation decreases to 75 mm (3.0 in) over just 9 days, and the humidity drops to 76%. For a closer look at September weather, check out Niagara Falls weather in September.
May and October present interesting contrasts in weather patterns. In May, temperatures range from a minimum of 0°C (32°F) to a maximum of 29°C (84°F), with an average of 13°C (56°F). The month experiences considerable precipitation, totaling 101 mm (4.0 in) over 13 days, with humidity levels around 82%. By contrast, October sees slightly warmer minimum temperatures at 2°C (36°F) and a more moderate maximum of 26°C (80°F), while maintaining a similar average of 13°C (55°F). However, it experiences even higher precipitation at 128 mm (5.0 in) across 16 days, with humidity levels rising to 83%. For more details on the weather during this season, visit Niagara Falls weather in October.
In comparing the weather of May and November, one can observe distinct contrasts in temperature and overall conditions. May typically experiences milder temperatures with a minimum of 0°C and an average high of 29°C, making it a more comfortable month with a relatively lower humidity of 82%. In contrast, November sees colder temperatures, dropping to a minimum of -9°C and averaging only 5°C, with a higher humidity level of 88% that can make the air feel even chillier. While both months see about 13 days of precipitation, May has slightly more rainfall at 101 mm compared to November's 87 mm. For a closer look at how the weather unfolds specifically in November, you can check out Niagara Falls weather in November.
In comparing the weather between May and December, it's evident that these months offer contrasting climates. May boasts a more temperate range with minimum temperatures at 0°C (32°F) and average highs reaching up to 29°C (84°F), accompanied by a relatively moderate rainfall of 101 mm (4.0 in) over 13 days and an overall humidity of 82%. In contrast, December experiences considerably colder conditions, with lows plunging to -18°C (0°F) and average highs of only 17°C (62°F). Precipitation is slightly lower at 91 mm (3.6 in) during this month, but it occurs over 15 days, and humidity is higher at 87%. For those interested in exploring what December has to offer, you can find more details here: Niagara Falls weather in December.
As May unfolds at Niagara Falls, the weather begins to transition, offering a delightful contrast to the chill of earlier months. Temperatures rise, creating a more inviting atmosphere, perfect for exploring the stunning landscapes. However, with high humidity and occasional rainfall, visitors should be prepared for varying conditions. The increase in precipitation days signals the approach of summer, laying the groundwork for vibrant blooms and lush scenery. This month truly acts as a bridge between the briskness of spring and the warmth of summer. For a deeper dive into what to expect year-round, check out Niagara Falls Climate.