May Weather in Merida, Mexico

Last updated: April 22, 2025

Experience the vibrant May weather in Mérida, Mexico, where the temperature can soar with a maximum of 39°C (103°F), while the average settles at a warm 29°C (85°F). With nighttime lows around 19°C (66°F), visitors can enjoy cooler evenings. May also brings a moderate precipitation amount of 47 mm (1.9 in) over approximately 7 days, contributing to a humidity level of 68% that keeps the air feeling lively. This unique blend of heat and moisture makes May an exciting time to explore Mérida's cultural treasures amidst its tropical charm.

May Temperature in Merida

In May, Merida, Mexico, showcases transitioning temperatures that herald the onset of summer. With minimums rising to 19°C (66°F) and an average of 29°C (85°F), there's a noticeable warmth in the air, peaking at a max of 39°C (103°F). This month marks a significant shift from the cooler April climate, where average temperatures were just 28°C (83°F). As May progresses, the heat intensifies, setting the stage for the sweltering months ahead. Visitors can anticipate sunny days filled with vibrant local culture, perfect for outdoor explorations, provided they stay hydrated and protect themselves from the sun's rays.

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

The chart illustrates May temperature patterns in Merida, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec747779838483838382817775
Data source: Temperature data for Merida 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 Merida

In May, Merida experiences a noticeable increase in rainfall, with 47 mm (1.9 in) of precipitation spread over 7 days. This substantial leap from April's 29 mm (1.2 in) not only marks the beginning of the rainy season but also highlights the city's transition from drier months to more humid conditions. As the region prepares for the heavier rains of June—where the total can reach up to 151 mm (6.0 in) over 17 days—May serves as a critical pivot point, allowing residents and visitors alike to witness the lush transformation of the landscape. This uptick in precipitation, paired with the rising temperatures, sets the stage for vibrant greenery and an invigorated ecosystem.

May Precipitation Trends in Merida

The chart displays monthly precipitation patterns in Merida, 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.
JanFebMarAprMayJunJulAugSepOctNovDec251062947151711071021183917
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Merida

In May, Merida, Mexico, welcomes warmer weather with a humidity level of 68%, the lowest recorded in the spring months. This slight dip continues the trend of decreasing humidity from the peak levels seen at the start of the year. Following the consistent high of 81% in January and 78% in February, the humidity gradually decreases through March and April, creating a more comfortable atmosphere before the rainy season starts in June. This seasonal shift signals the onset of a humid summer, which sees levels rise again, peaking towards the end of the year with November and December reaching 84% and 86% respectively. Thus, May serves as a transition month, offering a brief respite from the high humidity that characterizes both the early and late parts of the year.

May Average Humidity in Merida

This chart illustrates the average monthly humidity levels in Merida, 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%78%71%70%68%69%74%81%82%83%84%86%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Merida

In May, Merida, Mexico, continues to showcase its sun-soaked charm with a UV Index of 13, categorized as extreme. This means that sun exposure can lead to skin damage in as little as 10 minutes, making it essential for residents and visitors to take proper precautions. Following a trend from previous months, the UV levels remain consistently high, peaking for several consecutive months starting in March, which underscores the importance of sun safety. Whether you're hiking in the nearby cenotes or strolling through the vibrant streets, applying sunscreen and wearing protective clothing is vital during this time of year. To learn more about the UV Index throughout the year, visit Merida UV Index.

Maximum UV Index Levels in Merida for May

The chart shows the monthly maximum UV Index (UVI) for Merida 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.
JanFebMarAprMayJunJulAugSepOctNovDec810131313131312121187
Data source: Merida 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 Merida

In May, the beautiful city of Mérida, Mexico, basks in an impressive 342 hours of sunshine, marking one of the sunniest months of the year. This surge in daylight follows a steady ascent from January through March, where the sun begins to return in earnest. Although April maintains a generous 317 hours, May's warmth sets the stage for summer’s arrival, with July and August peaking at 343 and 335 hours, respectively. As the rainy season approaches in the subsequent months, the sunshine gradually diminishes, yet May shines with its vibrant luminosity, inviting locals and travelers alike to enjoy the beautiful outdoors before the heavier rains of the summer set in.

Monthly Sunshine Duration in Merida: May Highlighted

The May sunshine duration represents the total number of hours Merida 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.
JanFebMarAprMayJunJulAugSepOctNovDec224h275h325h317h342h296h343h335h312h303h298h289h
Data source: Merida May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Merida During May

In May, Merida experiences a 47% chance of sunny weather, mirroring the trend seen in both January and June. This mid-year mark stands out as a drop from the 75% in March and 67% in April, suggesting that while sun-filled days are still possible, they are less frequent compared to the preceding months. Following May, the likelihood dips further, with June seeing only a 27% chance of sun, indicating a shift towards the wetter season ahead. So, while May offers some chances for sunshine, it sets the stage for the hotter, rainier months that follow.

Percentage of Sunny Days in May in Merida

The chart illustrates the percentage of sunny days in Merida 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 Merida experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec47%68%75%67%47%27%49%53%34%46%66%68%
Data source: Merida May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Merida in May

As May unfolds in Merida, Mexico, the region basks in 13 hours of daylight, marking a noticeable increase that follows the gradual lengthening of days since January. This progression from 11 hours in the winter months to 12 hours in both March and April sets the stage for the vibrant energy of late spring. With daylight peaking in May and continuing the trend into June and July, residents and visitors alike can enjoy more time under the sun, embracing the warmth and leisure that this season brings. As summer approaches, daylight will begin to recede slightly, yet May remains a highlight in the calendar, where longer days not only enhance outdoor activities but also evoke a sense of joy and vitality in the air.

Average Daylight Hours in Merida for May

The chart illustrates the variation in daylight duration in Merida throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h11h 27m12h 2m12h 37m13h 7m13h 22m13h 14m12h 47m12h 13m11h 37m11h 7m10h 52m
Data source: Merida daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Merida

In Merida, Mexico, the winds tend to soften as the year progresses, with a noticeable dip during the summer months. May sees an average wind speed of 3.3 m/s (7 mph), marking a slight decline from the peak earlier in spring. As the temperatures rise, the gentle breezes provide a refreshing respite, particularly in contrast to the more vigorous winds of March and April, which both hovered around 3.5 to 3.6 m/s. This gradual decrease continues into June and the summer, where winds calm down to about 3.0 m/s (7 mph) and even lower later in the season. The trend highlights a transition into warmer, more tranquil days, inviting residents and visitors alike to enjoy the vibrant ambiance of the city in the prevailing, albeit gentle, winds of May.

Average May Wind Speed in Merida

The chart displays monthly wind speed patterns in Merida, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.83.13.63.53.3 m/s3.02.62.52.42.12.42.8
Data source: Merida May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Merida Compares to Other Months

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

May and January exhibit contrasting weather patterns. In May, temperatures soar with a minimum of 19°C (66°F) and averages reaching 29°C (85°F), peaking at 39°C (103°F). This month also experiences about 47 mm (1.9 in) of precipitation over 7 days, accompanied by a humidity of 68%. In contrast, January brings cooler temperatures, with a minimum of 12°C (54°F), an average of 23°C (74°F), and a maximum of 34°C (93°F). The month sees less precipitation, totaling 25 mm (1.0 in) over just 3 days, albeit with higher humidity at 81%. For more details on January weather, visit Merida weather in January.

May and February present contrasting weather patterns in Merida, Mexico. In May, temperatures soar with a minimum of 19°C (66°F) and an average of 29°C (85°F), reaching highs of up to 39°C (103°F). The month is relatively wet, experiencing 47 mm (1.9 in) of precipitation over about seven days, coupled with a humidity level of 68%. In contrast, February is cooler, with minimum temperatures around 12°C (53°F) and an average of 25°C (77°F), peaking at 36°C (98°F). Notably, February is much drier, receiving only 10 mm (0.4 in) of rain in just one day, although the humidity is slightly higher at 78%. For more detailed insights, check out Merida weather in February.

In comparing the weather conditions of May and March, a noticeable shift occurs. May brings warmer temperatures, with minimums of 19°C (66°F) and maximums reaching up to 39°C (103°F), while March is cooler, starting at a minimum of 13°C (56°F) and peaking at 38°C (101°F). The average temperature in May is significantly higher at 29°C (85°F) compared to March’s 26°C (80°F). Additionally, May experiences more precipitation, with a total of 47 mm (1.9 in) over 7 days, whereas March is quite dry with only 6 mm (0.2 in) of rain lasting just 1 day. Humidity levels are slightly higher in March at 71%, compared to May’s 68%. For more details on March weather, visit Merida weather in March.

In comparing the weather between April and May, May tends to be slightly warmer, with average temperatures reaching 29°C (85°F) compared to April's 28°C (83°F). However, April experiences a higher maximum temperature of 40°C (105°F), while May peaks at 39°C (103°F). Precipitation in May increased to 47 mm (1.9 in) over 7 days, compared to April's 29 mm (1.2 in) over just 4 days. Notably, humidity levels are fairly consistent, with April at 70% and May at 68%. For a deeper look into April's weather specifics, check out Merida weather in April.

In May, Merida experiences warm temperatures, with a minimum of 19°C (66°F) and an average of 29°C (85°F), peaking at 39°C (103°F). The month sees relatively low precipitation of 47 mm (1.9 in) over 7 days, accompanied by humidity levels around 68%. In contrast, June brings slightly warmer nights with a minimum of 23°C (73°F) and a similar maximum temperature of 39°C (102°F). However, June is significantly wetter, with rainfall totaling 151 mm (6.0 in) across 17 days, and humidity remains comparable at 69%. For more insights on the weather during this time, check out Merida weather in June.

In comparing the weather between May and July, we see a noticeable difference in temperature and precipitation patterns. May boasts a minimum temperature of 19°C (66°F) and an average high of 29°C (85°F), while July starts warmer with a minimum of 23°C (73°F) and an average of 28°C (83°F). However, July experiences slightly cooler maximum temperatures, peaking at 37°C (98°F) compared to May's high of 39°C (103°F). Precipitation also intensifies in July, with 71 mm (2.8 in) recorded over 14 days, contrasting with May's 47 mm (1.9 in) over just 7 days. Additionally, July's humidity level is higher at 74%, up from May's 68%, making the summer months feel more humid. For more detailed information, check out Merida weather in July.

In May, temperatures in Merida rise significantly, with a minimum of 19°C (66°F) and an average of 29°C (85°F), reaching a peak of 39°C (103°F). The month sees moderate precipitation with 47 mm (1.9 in) spread over 7 days, and humidity levels linger around 68%. In contrast, August experiences slightly cooler average temperatures, ranging from a minimum of 22°C (72°F) to a maximum of 36°C (97°F). However, this month is marked by higher humidity levels at 81% and increased rainfall, with 107 mm (4.2 in) occurring over 18 days, making for a wetter and stickier atmosphere. For more detailed information, you can check Merida weather in August.

May and September in Merida present notably different weather patterns. In May, the temperatures are generally warmer, with daily averages around 29°C (85°F) and maximums reaching up to 39°C (103°F). The month sees less precipitation, with only 47 mm (1.9 in) falling over about 7 days, and a moderate humidity level of 68%. In contrast, September experiences slightly cooler temperatures, with an average of 28°C (83°F) and maximums of 36°C (97°F). However, it is marked by increased rainfall, totaling 102 mm (4.0 in) spread across approximately 18 days, accompanied by higher humidity at 82%. For more details on the weather specifics, you can visit Merida weather in September.

May and October in Merida present contrasting weather patterns. In May, temperatures soar with a minimum of 19°C (66°F) and an average high of 29°C (85°F), while rainfall is relatively light at 47 mm (1.9 in) over just 7 days, accompanied by a humidity level of 68%. In contrast, October experiences cooler temperatures, with a minimum of 16°C (61°F) and an average high of 27°C (81°F). However, this month sees significantly more rainfall, totaling 117 mm (4.6 in) over 17 days and a higher humidity of 83%. For more information, you can check the Merida weather in October.

May and November in Merida offer distinct weather experiences, each with its own charm. May tends to be hotter, with temperatures ranging from a minimum of 19°C (66°F) to a maximum of 39°C (103°F) and an average of 29°C (85°F). In contrast, November presents milder conditions, featuring a minimum of 14°C (57°F) and a maximum of 33°C (92°F), with an average of 25°C (77°F). While May receives slightly more rainfall at 47 mm (1.9 in), November almost matches it with 39 mm (1.5 in) over a similar number of days, albeit with higher humidity averaging 84%. For more detailed insights on November's weather, visit Merida weather in November.

May and December present significantly different weather patterns. In May, temperatures range from a minimum of 19°C (66°F) to a scorching maximum of 39°C (103°F), with an average temperature of 29°C (85°F). The month experiences 47 mm (1.9 in) of precipitation over about 7 days, accompanied by a humidity level of 68%. In contrast, December offers milder conditions, with temperatures ranging from a low of 12°C (54°F) to a high of 34°C (94°F), and an average of 24°C (75°F). Precipitation drops to 17 mm (0.7 in) over just 4 days, and humidity is higher at 86%. For more details on the December climate, you can check Merida weather in December.

Compare Merida's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Merida

As May unfolds in Merida, visitors can expect a notable shift in the weather, marked by warm temperatures that lay the groundwork for the upcoming summer months. With an average warmth of 29°C, the days can feel quite hot, especially when maximums soar to 39°C. While the humidity hovers around a moderate 68%, the occasional rain shower—averaging about 47 mm over roughly 7 days—offers a refreshing respite from the heat. This blend of warmth and sporadic rain distinguishes May from the drier months that precede it, making it an exciting time for those exploring the vibrant culture and natural beauty of the region. For more detailed insights, visit Merida Climate.