May Weather in Marco Island, United States

Last updated: February 24, 2025

May in Marco Island, United States, features pleasantly warm temperatures with a maximum reaching around 32°C (90°F) and an average of 26°C (79°F), while the minimum does not drop below 19°C (67°F). Visitors can expect a humidity level of 71%, creating a tropical atmosphere perfect for outdoor activities. However, it's important to note that May also brings a fair amount of precipitation, with around 126 mm (5.0 in) over 12 days, making it wise to plan for occasional showers. Embrace the stunning beach views and vibrant sunsets while navigating this delightful spring weather!

May Temperature in Marco Island

In May, Marco Island basks in a delightful transition towards summer, with temperatures reflecting a significant uptick. The minimum temperature rises to a comfortable 19°C (67°F), while the average climbs to a pleasant 26°C (79°F), reaching a peak of 32°C (90°F). This pattern showcases a steady increase from the cooler months, inviting residents and visitors alike to enjoy the warm sunshine and mild evenings. As the island shifts from the refreshing spring air to the balmy warmth of early summer, May offers an ideal blend of warmth and vibrancy, perfect for outdoor activities and beach relaxation.

May Weather in Marco Island: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Marco Island, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec667071767982828382807469
Data source: Temperature data for Marco Island 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 Marco Island

In Marco Island during May, residents and visitors experience a noticeable uptick in precipitation, with rainfall reaching 126 mm (5.0 in) over 12 days. This significant increase marks a stark contrast to the drier months preceding it, like January and March, where precipitation was less than 30 mm. The transition to May heralds the start of the wet season, setting the stage for the heavier rainfall that characterizes the summer months. This trend continues into June and July, where the number and intensity of rainy days escalate, emphasizing the lush, tropical nature of the region. Overall, May serves as a pivotal month where the lush greenery of Marco Island begins to flourish, benefiting from the ample rainfall while hinting at the more frequent storms to come in the following weeks.

May Precipitation Trends in Marco Island

The chart displays monthly precipitation patterns in Marco Island, 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.
JanFebMarAprMayJunJulAugSepOctNovDec29332342126181188183171945336
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Marco Island

In May, humidity on Marco Island begins to show a subtle but noticeable decline, reaching 71%—the lowest point of the spring months. This trend of decreasing humidity has been consistent moving into the warmer months, starting from January's peak at 81% and tapering off gradually through to April. As summer approaches, humidity levels slightly rise again in June but remain relatively comfortable compared to the higher levels earlier in the year. Overall, May serves as a transitional period, balancing the lingering humidity of spring with the drier conditions to come, offering a pleasant reprieve for residents and visitors alike.

May Average Humidity in Marco Island

This chart illustrates the average monthly humidity levels in Marco Island, 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.
JanFebMarAprMayJunJulAugSepOctNovDec81%80%76%73%71%70%70%72%76%79%80%81%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Marco Island

In May, Marco Island experiences an extreme UV Index of 12, marking it as one of the sunniest and most hazardous months for sun exposure. The burn time is a mere 10 minutes, underscoring the importance of protective measures for anyone outdoors. This trend of rising UV levels becomes apparent from April, when the sun's intensity ramped up significantly, and it remains consistent through to August. As the summer months approach, visitors and residents alike should stay vigilant in their sun safety practices. For more detailed information on the UV index throughout the year, check out Marco Island UV Index.

Maximum UV Index Levels in Marco Island for May

The chart shows the monthly maximum UV Index (UVI) for Marco Island 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.
JanFebMarAprMayJunJulAugSepOctNovDec69101212121212111086
Data source: Marco Island 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 Marco Island

As May unfolds in Marco Island, the sun continues to shine brilliantly, offering a delightful 330 hours of sunlight throughout the month. This consistent brightness mirrors the preceding months of March and April, both basking in the same generous allocation of sunshine. A notable trend emerges as the year unfolds: after a cooler January, sunshine hours steadily increase, peaking in July with 336 hours. The overall sunny disposition of the warmer months showcases Marco Island as a radiant getaway, perfect for outdoor adventures and relaxation. As spring transitions into summer, the abundance of sunlight encourages vibrant beach days and picturesque sunsets, inviting residents and visitors alike to soak in every golden moment.

Monthly Sunshine Duration in Marco Island: May Highlighted

The May sunshine duration represents the total number of hours Marco Island 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.
JanFebMarAprMayJunJulAugSepOctNovDec231h282h330h330h330h304h336h329h313h303h280h292h
Data source: Marco Island May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Marco Island During May

In Marco Island, May offers a more moderate chance of sunny weather compared to the months preceding it, with a 54% likelihood of sunshine. This reflects a noticeable shift after the sunny days of April, which enjoys an impressive 64% chance of clear skies. As spring transitions into summer, the likelihood of sunny weather in Marco Island begins to decline, significantly dropping to 19% by June. Observing the trend, it's clear that while May still holds promise for warm, sunny days, it is a pivotal month where residents and visitors alike may want to seize the opportunity for outdoor activities before the summer cloud cover rolls in.

Percentage of Sunny Days in May in Marco Island

The chart illustrates the percentage of sunny days in Marco Island 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 Marco Island experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec44%63%61%64%54%19%21%18%33%46%53%67%
Data source: Marco Island May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Marco Island in May

In Marco Island, United States, May marks a delightful transition into longer days, boasting an impressive 13 hours of daylight. This increase reflects a broader trend where daylight gradually ascends from the 10 hours in January to a peak during late spring and summer. After experiencing 12 hours in both March and April, May offers a taste of the sun-drenched days that characterize the summer months. Following May, daylight remains steady at 13 hours through June and July, before gradually tapering off as fall approaches. This natural ebb and flow of daylight illuminates the beauty of Marco Island’s environment, encouraging outdoor activities and vibrant sunsets throughout the season.

Average Daylight Hours in Marco Island for May

The chart illustrates the variation in daylight duration in Marco Island throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 42m11h 16m12h 1m12h 47m13h 25m13h 43m13h 33m12h 59m12h 15m11h 30m10h 51m10h 31m
Data source: Marco Island daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Marco Island

In Marco Island, May ushers in delightful breezes with an average wind speed of 4.1 m/s (9 mph), mirroring the calmness of April. This steady wind pattern reflects a pleasant transition into summer, as the average speeds begin to slightly decline in the following months. Notably, May maintains a wind intensity that is consistent with the earlier spring months, providing ideal conditions for outdoor activities and leisure. As the season progresses, the winds begin to taper off, hinting at the tranquil summer days ahead where the gentle whispers of the breeze offer a refreshing getaway from the warmth. Overall, May serves as a pivotal month, showcasing a refreshing blend of energy and serenity.

Average May Wind Speed in Marco Island

The chart displays monthly wind speed patterns in Marco Island, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.84.54.24.14.1 m/s3.63.13.32.53.74.13.0
Data source: Marco Island May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Marco Island Compares to Other Months

The weather in Marco Island 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 Marco Island and find detailed weather information for every month.

May and January present distinctly different weather patterns. In May, the temperatures range from a minimum of 19°C (67°F) to a maximum of 32°C (90°F), with an average of 26°C (79°F). This month experiences a higher level of precipitation, with 126 mm (5.0 in) falling over approximately 12 days, contributing to a humidity level of 71%. In contrast, January reveals much cooler temperatures, with a minimum of 5°C (42°F) and an average of 19°C (67°F) peaking at 27°C (81°F). The month is drier, recording only 29 mm (1.2 in) of precipitation spread over 4 days, yet it maintains a higher humidity level at 81%. For more detailed weather insights, visit Marco Island weather in January.

Comparing the weather in May and February reveals distinct differences in temperature and precipitation patterns. May experiences warmer conditions, with average temperatures ranging from a minimum of 19°C (67°F) to a maximum of 32°C (90°F), while February offers milder temperatures, with averages between 8°C (47°F) and 28°C (83°F). Additionally, May sees significantly more rainfall, with 126 mm (5.0 in) over about 12 days, in contrast to February's lighter precipitation of 33 mm (1.3 in) over just 3 days. Interestingly, February has a slightly higher humidity level at 79%, compared to May's 71%. For more detailed insights, you can check the Marco Island weather in February.

In March, the weather is generally cooler with a minimum temperature of 10°C (50°F) and an average of 22°C (72°F), while May brings significantly warmer conditions, with temperatures starting at a minimum of 19°C (67°F) and averaging 26°C (79°F). Precipitation is notably higher in May, with 126 mm (5.0 in) falling over 12 days, compared to just 23 mm (0.9 in) across 2 days in March. Additionally, March experiences a slightly higher humidity level at 76%, compared to 71% in May. For more details on March weather, you can visit Marco Island weather in March.

May typically experiences warmer temperatures than April, with minimums of 19°C (67°F) compared to April's 14°C (58°F), and an average of 26°C (79°F) versus April's 24°C (76°F). While May sees similar maximum temperatures, peaking at 32°C (90°F), it also brings increased rainfall, with 126 mm (5.0 in) of precipitation over 12 days, compared to April's 42 mm (1.7 in) over just 7 days. Additionally, humidity levels in May average around 71%, slightly decreasing from April's 73%. For more detailed weather patterns, you can check Marco Island weather in April.

May and June present distinct weather patterns, highlighting the transition from late spring to early summer. In May, temperatures range from a minimum of 19°C (67°F) to a maximum of 32°C (90°F), with an average of 26°C (79°F). The month experiences significant rainfall, totaling 126 mm (5.0 in) over 12 days, resulting in a humidity level of 71%. In contrast, June brings warmer conditions, with temperatures starting at a minimum of 23°C (74°F) and reaching a maximum of 33°C (92°F), averaging 28°C (82°F). This month also sees increased precipitation, with 181 mm (7.1 in) of rain over 21 days, while humidity slightly decreases to 69%. For more details on weather specific to June, you can refer to Marco Island weather in June.

In comparing the weather between May and July, we observe that both months experience similar maximum temperatures, reaching up to 32°C (90°F). However, May tends to be a bit cooler overall, with average temperatures around 26°C (79°F), while July sees slightly warmer averages of 28°C (83°F). Precipitation levels are higher in July, accumulating 188 mm (7.4 in) over approximately 24 days, compared to May's 126 mm (5.0 in) across 12 days. Despite these increased rainfall and cloud cover in July, the humidity remains relatively constant at around 70-71%, providing a similar tropical feel. For a detailed look at July's specific weather patterns, visit Marco Island weather in July.

When comparing the weather in May and August, May typically experiences a more moderate temperature range, with minimums around 19°C (67°F) and maximums reaching up to 32°C (90°F). Conversely, August is warmer, with minimum temperatures starting at 24°C (76°F) and maximums peaking at 33°C (92°F). Additionally, May receives less rainfall, averaging 126 mm (5.0 inches) over about 12 days, while August sees increased precipitation of 183 mm (7.2 inches) over approximately 25 days. Despite the slight difference in humidity—71% in May and 72% in August—the overall feel of August is often more humid and rainy. For more detailed information, you can check out Marco Island weather in August.

May and September present distinct weather patterns. In May, temperatures generally range from a minimum of 19°C (67°F) to a maximum of 32°C (90°F), with an average of 26°C (79°F). The month sees approximately 126 mm (5.0 in) of precipitation over about 12 days, coupled with a humidity level of 71%. In contrast, September experiences slightly warmer temperatures, with a minimum of 23°C (75°F) and a maximum of 34°C (94°F), averaging around 28°C (82°F). This month also tends to be wetter, accumulating 171 mm (6.7 in) of rainfall over 20 days and higher humidity at 76%. For more detailed insights into September's weather, check out Marco Island weather in September.

May and October exhibit somewhat similar temperature ranges, with both months featuring maximum temperatures peaking around 32°C (90°F to 91°F). However, May tends to start off warmer, with minimum temperatures averaging 19°C (67°F), compared to October's lower minimum of 15°C (59°F). Precipitation levels are higher in May, averaging 126 mm (5.0 in) over 12 days, while October experiences slightly less rainfall at 94 mm (3.7 in) across 13 days. Additionally, October has a higher humidity level at 79%, compared to May’s 71%. For more specific details on October weather, you can check Marco Island weather in October.

May and November exhibit distinct weather patterns, with May presenting warmer temperatures and higher humidity. In May, temperatures range from a minimum of 19°C (67°F) to a maximum of 32°C (90°F), accompanied by an average of 26°C (79°F), while November displays a cooler range with temperatures dipping to a minimum of 11°C (52°F) but still peaking at 32°C (90°F) and an average of 23°C (74°F). Precipitation is more prevalent in May, with 126 mm (5.0 in) falling over 12 days, compared to November's milder 53 mm (2.1 in) over just 6 days. Additionally, November’s humidity is slightly higher at 80%, in contrast to May's 71%. For more detailed insights, visit Marco Island weather in November.

In May, temperatures are generally warmer, with minimums around 19°C (67°F) and maximums reaching up to 32°C (90°F), while December tends to be cooler, with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 28°C (82°F). May experiences more precipitation, averaging 126 mm (5.0 in) over approximately 12 days, compared to December’s much lighter rainfall of 35 mm (1.4 in) spread across just 5 days. Additionally, humidity levels are slightly higher in December at 81%, compared to 71% in May, contributing to a more comfortable feel despite the cooler temperatures. For more details on December weather, you can check Marco Island weather in December.

Compare Marco Island's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Marco Island

As May unfolds, Marco Island embraces a delightful shift in weather that sets the stage for the summer months ahead. With temperatures peaking at a warm 32°C (90°F) and an average of 26°C (79°F), this month invites visitors to bask in the sunshine. Unlike the cooler winter months, May experiences a refreshing warmth, though it also brings some humidity at 71% and occasional rainfall, with about 12 days of precipitation totaling 126 mm (5.0 in). This combination creates a lush environment that enhances the island's natural beauty. For a deeper dive into what to expect year-round, explore the detailed insights at Marco Island Climate.