May Weather in Isla Cozumel, Mexico

Last updated: April 22, 2025

In May, Isla Cozumel, Mexico, experiences pleasant weather characterized by an average temperature of 16°C (61°F), with maximums reaching 24°C (76°F) and minimums dipping to 11°C (52°F). This month sees an average of 26 mm (1.0 in) of rainfall, spread across 6 days, creating a refreshing atmosphere amidst the 46% humidity. Visitors can enjoy mild conditions, perfect for exploring the island’s stunning landscapes and vibrant culture while remaining prepared for occasional showers.

May Temperature in Isla Cozumel

In May, Isla Cozumel begins to embrace the warmth of summer, with temperatures reflecting a gentle transition from the cooler months. The minimum temperature rises to 11°C (52°F), while the average climbs to a pleasant 16°C (61°F), leading to a maximum of 24°C (76°F). This gradual increase signals the approach of sunnier days, as the island enjoys a delightful mix of mild breezes and vibrant sunshine. Comparatively, May is notably warmer than the preceding months, setting the stage for the hotter summer ahead while still offering a comforting escape for visitors yearning for a tropical getaway.

May Weather in Isla Cozumel: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Isla Cozumel, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec575657606164697169676257
Data source: Temperature data for Isla Cozumel 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 Isla Cozumel

In May, Isla Cozumel experiences a notable transition in its precipitation patterns, marking the onset of drier conditions as the month records just 26 mm (1.0 in) of rainfall over six days. This drop follows the relatively wetter months of January through April, where rainfall amounts were significantly higher, peaking at 75 mm (3.0 in) in February. As the region shifts towards summer, the diminishing precipitation not only signals a change in weather but also highlights the approaching dry spell that continues into June, where rainfall plummets to a mere 7 mm (0.3 in). This trend underscores the seasonal climate of the island, providing a clearer picture of how May sets the stage for sun-soaked days ahead.

May Precipitation Trends in Isla Cozumel

The chart displays monthly precipitation patterns in Isla Cozumel, 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.
JanFebMarAprMayJunJulAugSepOctNovDec60755727267556143568
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Isla Cozumel

In May, the humidity in Isla Cozumel, Mexico, experiences a noticeable drop, reaching a comfortable 46%—the lowest level of the year. This decline follows a peak in February at 77%, leading to a general trend of decreasing humidity from the early months of the year. After a relatively humid April at 56%, May's drier conditions pave the way for the summer months ahead. Interestingly, this shift towards lower humidity continues into June and July, where the levels hover around 46%. This trend highlights the start of the dry season, making May an attractive time for visitors seeking a more pleasant climate while enjoying the island's stunning tropical beauty.

May Average Humidity in Isla Cozumel

This chart illustrates the average monthly humidity levels in Isla Cozumel, 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.
JanFebMarAprMayJunJulAugSepOctNovDec72%77%67%56%46%48%46%42%52%58%66%74%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Isla Cozumel

As summer approaches, the UV Index in Isla Cozumel, Mexico reaches an alarming peak in May, soaring to 11 on the scale, categorized as extreme. This significant increase from the moderate levels of January is a clear indicator of the intense sun exposure travelers can expect during this time. With a burn time of just 10 minutes, visitors should be particularly cautious and well-prepared with sunscreen and protective clothing. The trend continues into June, where the UV Index remains at the same extreme level. These high readings highlight the importance of sun safety practices, especially as the season transitions from the relatively mild early months to the unforgiving rays of summer. For more detailed insights, check out the Isla Cozumel UV Index.

Maximum UV Index Levels in Isla Cozumel for May

The chart shows the monthly maximum UV Index (UVI) for Isla Cozumel 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.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111110754
Data source: Isla Cozumel 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 Isla Cozumel

As summer approaches, May shines brightly in Isla Cozumel, Mexico, boasting an impressive 359 hours of sunshine. This month is characterized by a remarkable transition from the cooler, cloudier days of January, which sees only 196 hours, to near-peak sunshine by June, recording 364 hours. The steady increase in sunlight from January through May highlights the allure of spring, making May an ideal time for travelers seeking warmth and vibrant, sun-kissed adventures. Notably, the sun's presence peaks in July with 375 hours, suggesting that the warmth of the Mexican sun continues to embrace the island into the summer months, creating a paradise for beachgoers and outdoor enthusiasts alike.

Monthly Sunshine Duration in Isla Cozumel: May Highlighted

The May sunshine duration represents the total number of hours Isla Cozumel 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.
JanFebMarAprMayJunJulAugSepOctNovDec196h243h299h324h359h364h375h360h318h298h258h236h
Data source: Isla Cozumel May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Isla Cozumel During May

As May approaches in Isla Cozumel, Mexico, the likelihood of sunny weather begins to wane slightly, with chances of sunshine dropping to 49%. This marks a noticeable dip from the sunnier months of winter and early spring, reflecting the transition towards the rainy season. Interestingly, while May shares the same percentage as June, the overall trend suggests that sunny days are abundant prior to this shift, peaking at 63% in August and September. As visitors plan their travels, it’s essential to keep in mind that while May may present some cloudy days, the charm of Cozumel's beaches and vibrant culture is still very much alive.

Percentage of Sunny Days in May in Isla Cozumel

The chart illustrates the percentage of sunny days in Isla Cozumel 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 Isla Cozumel experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec63%61%61%51%49%49%53%63%67%64%63%45%
Data source: Isla Cozumel May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Isla Cozumel in May

As spring transitions into summer in Isla Cozumel, Mexico, the daylight duration experiences a gradual yet mesmerizing increase. Starting at 10 hours in January, the days lengthen steadily through February and March, reaching 12 hours by the end of March. April brings the first taste of summer's warmth with 13 hours of daylight, a trend that persists into May, offering plenty of daylight for beach adventures and explorations. The peak comes in June and July, where the island basks in 14 hours of sunlight, perfect for soaking up the vibrant tropical atmosphere. As summer ebbs towards autumn, daylight slightly decreases to 13 hours in August, then gently declines further to 12 hours in September, before returning to 10 hours by November. This rhythmic cycle not only highlights the island's luminous beauty but also sets the stage for a unique blend of daytime activities to savor year-round.

Average Daylight Hours in Isla Cozumel for May

The chart illustrates the variation in daylight duration in Isla Cozumel throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 16m11h 1m12h13h13h 50m14h 14m14h 1m13h 16m12h 19m11h 19m10h 27m10h 2m
Data source: Isla Cozumel daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Isla Cozumel

In May, Isla Cozumel experiences a gentle breeze with an average wind speed of 2.9 m/s (6 mph), maintaining a comfortable and refreshing atmosphere as the summer approaches. This slight dip in wind speed from the breezier months of March and April signals a transitional phase, where the idyllic shores begin to feel the warmth of the summer sun. As the island shifts into June, the winds pick up again, illustrating a recurring trend where conditions are generally mild during late spring and early summer, perfect for sailing, snorkeling, and enjoying the vibrant local culture. The steady winds in Cozumel contribute to its charm, making it a delightful destination for both relaxation and adventure throughout the season.

Average May Wind Speed in Isla Cozumel

The chart displays monthly wind speed patterns in Isla Cozumel, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.22.73.33.12.9 m/s3.12.92.92.92.82.53.1
Data source: Isla Cozumel May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Isla Cozumel Compares to Other Months

The weather in Isla Cozumel 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 Isla Cozumel and find detailed weather information for every month.

May and January offer distinct weather experiences. In May, temperatures range from a minimum of 11°C (52°F) to a maximum of 24°C (76°F), with an average of 16°C (61°F). This month sees relatively low precipitation at 26 mm (1.0 in) over about six days, accompanied by moderate humidity of 46%. In contrast, January features slightly cooler temperatures, with a minimum of 7°C (45°F) and a maximum of 23°C (75°F), averaging 14°C (57°F). However, it experiences more precipitation, totaling 60 mm (2.3 in) across the same number of rainy days, while the humidity is significantly higher at 72%. For a more detailed look at January weather, check out Isla Cozumel weather in January.

When comparing the weather between February and May, notable differences emerge. In February, temperatures range from a minimum of 6°C (43°F) to a maximum of 25°C (77°F), with an average of 13°C (56°F). The month also experiences higher precipitation, totaling 75 mm (3.0 in) over about 7 days, accompanied by a higher humidity of 77%. In contrast, May enjoys milder temperatures, with a minimum of 11°C (52°F) and a maximum of 24°C (76°F), averaging 16°C (61°F). Rainfall is significantly lower in May at 26 mm (1.0 in) over 6 days, contributing to a more comfortable humidity level of 46%. For more details on February's weather, you can visit Isla Cozumel weather in February.

When comparing the weather in March and May, a few notable differences emerge. March typically has cooler temperatures, with an average of 14°C (57°F) and a minimum of 7°C (45°F), while May is warmer, boasting an average temperature of 16°C (61°F) and a minimum of 11°C (52°F). Both months can reach a high of 24°C (76°F), but March experiences significantly more precipitation, averaging 57 mm (2.2 in) over 10 days, compared to May's 26 mm (1.0 in) over just 6 days. Additionally, March has higher humidity at 67%, versus May's lower humidity level of 46%. For more details on March weather, you can check Isla Cozumel weather in March.

In comparing the weather between April and May, we see some intriguing differences. April tends to be a bit warmer, with maximum temperatures reaching up to 27°C (81°F), while May has a slightly lower maximum of 24°C (76°F). Interestingly, both months feature similar precipitation levels, with April at 27 mm (1.1 in) over 4 days and May with 26 mm (1.0 in) over 6 days. Humidity is noticeably higher in April at 56%, compared to May's drier conditions with 46%. For more detailed insights, you can check Isla Cozumel weather in April.

May and June offer a noticeable shift in weather patterns. In May, temperatures range from a minimum of 11°C (52°F) to a maximum of 24°C (76°F), with an average of 16°C (61°F). This month sees about 26 mm (1.0 in) of precipitation over approximately 6 days, along with a humidity level of 46%. In contrast, June brings warmer temperatures with a minimum of 14°C (57°F), an average of 18°C (65°F), and a maximum of 27°C (80°F). Rainfall decreases significantly to just 7 mm (0.3 in) and no rainy days, while humidity slightly rises to 48%. For more information, check out Isla Cozumel weather in June.

May and July exhibit distinct differences in weather patterns. In May, temperatures range from a minimum of 11°C (52°F) to a maximum of 24°C (76°F), with an average of 16°C (61°F). This month also experiences moderate precipitation, with 26 mm (1.0 in) spread over six days. In contrast, July offers warmer conditions, featuring a minimum temperature of 16°C (60°F), an average of 21°C (69°F), and a maximum of 28°C (83°F). Notably, July boasts much drier weather, with only 5 mm (0.2 in) of precipitation and no rainy days. Both months maintain a consistent humidity level of 46%. For more information on the weather in July, you can check Isla Cozumel weather in July.

May and August present distinct weather patterns, highlighting the transition from spring to summer. In May, temperatures range from a cool 11°C (52°F) at night to a pleasant 24°C (76°F) during the day, with an average of 16°C (61°F). The month also sees moderate rainfall, accumulating around 26 mm (1.0 in) over about six days, accompanied by a humidity level of 46%. In stark contrast, August is warmer, with minimum temperatures around 17°C (62°F) and maximums peaking at 28°C (83°F), averaging 21°C (71°F). This month is notably drier, experiencing only 5 mm (0.2 in) of precipitation across no rainy days and slightly lower humidity at 42%. For more details on August weather, check out Isla Cozumel weather in August.

In May, temperatures begin to warm with a minimum of 11°C (52°F) and an average of 16°C (61°F), peaking at 24°C (76°F). This month experiences about 26 mm (1.0 in) of precipitation over 6 days, alongside a humidity level of 46%. In contrast, September exhibits warmer conditions with a minimum temperature of 16°C (61°F) and an average of 21°C (70°F), reaching a maximum of 30°C (86°F). Notably, September is much drier, with only 6 mm (0.2 in) of precipitation and no rainy days, accompanied by slightly higher humidity at 52%. For a detailed look at the weather specifics, check out Isla Cozumel weather in September.

May and October present distinctly different weather patterns. In May, temperatures range from a minimum of 11°C (52°F) to a maximum of 24°C (76°F), with an average of 16°C (61°F). The month sees about 26 mm (1.0 in) of precipitation over 6 days, accompanied by a relatively lower humidity of 46%. In contrast, October experiences warmer temperatures, with a minimum of 12°C (53°F) and a maximum reaching up to 32°C (90°F), averaging 19°C (67°F). Additionally, October is drier, with only 14 mm (0.6 in) of precipitation over just 2 days, but it has a higher humidity level of 58%. For more detailed information, you can check Isla Cozumel weather in October.

May and November present distinct weather patterns that reflect the transition from spring to late autumn. In May, temperatures range from a minimum of 11°C (52°F) to a comfortable average of 16°C (61°F), peaking at 24°C (76°F). This month sees relatively low precipitation, with 26 mm (1.0 in) falling over about 6 days and a moderate humidity level of 46%. In contrast, November offers slightly cooler mornings with a minimum of 9°C (49°F) but warms up to an average of 17°C (62°F) and can reach a high of 27°C (80°F). This month experiences a bit more rainfall, accumulating 35 mm (1.4 in) but with significantly fewer rainy days (only 2), and the humidity rises to 66%. For more detailed information about November weather, you can visit Isla Cozumel weather in November.

When comparing the weather in May and December, May enjoys slightly warmer temperatures with an average of 16°C (61°F), reaching a maximum of 24°C (76°F). In contrast, December has a cooler average of 14°C (58°F) and a similar maximum temperature of 23°C (73°F). Precipitation is notably higher in December, with 68 mm (2.7 in) falling over 6 days, compared to May's 26 mm (1.0 in) on the same number of days. Additionally, December experiences higher humidity at 74%, while May has a more moderate humidity level of 46%. For more details on December weather specifics, check out Isla Cozumel weather in December.

Compare Isla Cozumel's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Isla Cozumel

As May unfolds in Isla Cozumel, visitors can expect a delightful transition into warmer weather, characterized by a mild average temperature that begins to creep upwards, setting the stage for summer. While the maximum temperatures soar to a comfortable 24°C, nighttime brings cooler breezes, making it pleasant to enjoy the evenings. Although there are occasional rain showers, with about six days of precipitation totaling around 26 mm, the humidity remains manageable at 46%. Compared to the cooler and drier months preceding it, May offers a perfect blend of warmth and moderate rainfall, making it an ideal time for exploration and relaxation. To learn more about the area's weather patterns, visit Isla Cozumel Climate.