May Weather in San Miguel de Allende, Mexico

Last updated: April 22, 2025

May in San Miguel de Allende, Mexico, is a delightful blend of warmth and occasional rain, making it an inviting time for visitors. Daytime temperatures can soar to a maximum of 36°C (97°F), while the average temperature hovers around 23°C (73°F), providing a pleasant experience for outdoor activities. Evenings offer a refreshing coolness with lows of 9°C (49°F). Rain is not uncommon, with a total precipitation of 38 mm (1.5 in) spread across approximately 6 days, leading to a humidity level of 67%. This month strikes a balance between sunny days and gentle showers, perfect for exploring the vibrant culture and stunning landscapes of this enchanting city.

May Temperature in San Miguel de Allende

In May, San Miguel de Allende experiences a delightful transition into warmer weather, with temperatures that reflect the city’s vibrant charm. The minimum temperature rises to a comfortable 9°C (49°F), while the average climbs to a pleasant 23°C (73°F), making it ideal for outdoor activities. As the days progress, the mercury peaks at 36°C (97°F), signaling the height of spring and paving the way for the summer heat. Compared to the cooler months of January through April, May marks a distinct warming trend that invites locals and tourists alike to enjoy the city's beautiful landscapes and cultural festivities under the sun.

May Weather in San Miguel de Allende: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in San Miguel de Allende, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec586266707370686967656158
Data source: Temperature data for San Miguel de Allende 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 San Miguel de Allende

May marks a significant transition in San Miguel de Allende's climate, with precipitation surging to 38 mm (1.5 in) over just six days, compared to the dry spells of earlier months. This sharp increase signals the onset of the rainy season, which will peak in the following months. As the city shakes off the drier winter months—with January to April totaling only 25 mm—May's rain becomes crucial for local agriculture and the vibrancy of its lush landscapes. With an average of just two rainy days in April, the noticeable shift in May not only refreshes the environment but also sets the stage for an even wetter June, where precipitation escalates dramatically to 145 mm (5.7 in). This clear trend of increasing rainfall reinforces the importance of May as a pivotal month in the annual climatic cycle of San Miguel de Allende.

May Precipitation Trends in San Miguel de Allende

The chart displays monthly precipitation patterns in San Miguel de Allende, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3697381451179413150185
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Miguel de Allende

In May, humidity in San Miguel de Allende experiences a slight uptick, settling at 67%, following a trend of decreasing moisture levels since January's lofty 74%. This month acts as a transitional bridge to the steamier summer months, where humidity begins to rise again, peaking in June at 76%. May's relative humidity can feel refreshing yet slightly damp, hinting at the seasonal shift ahead. As the year progresses, the trend indicates a steady increase, culminating in the more humid months of late summer and fall, where levels soar into the 80s% by October and November. Overall, May serves as a pivotal point where the dry conditions of earlier months begin to give way to the lush, vibrant atmosphere of the summer season.

May Average Humidity in San Miguel de Allende

This chart illustrates the average monthly humidity levels in San Miguel de Allende, 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.
JanFebMarAprMayJunJulAugSepOctNovDec74%65%58%58%67%76%67%68%81%83%84%81%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in San Miguel de Allende

In May, San Miguel de Allende experiences its peak UV Index of 15, categorizing the exposure as extreme with a burn time of just 10 minutes. This trend of high UV levels continues from April, reflecting the region's intense sunlight as it transitions into the summer months. As a reminder, the UV Index remains elevated in the following months, tapering only slightly into June and beyond. With such high UV readings, it's crucial to take precautions to protect your skin. Always stay informed and plan your outdoor activities accordingly; for more details on UV exposure, check out San Miguel de Allende UV Index.

Maximum UV Index Levels in San Miguel de Allende for May

The chart shows the monthly maximum UV Index (UVI) for San Miguel de Allende 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.
JanFebMarAprMayJunJulAugSepOctNovDec911141515141414141298
Data source: San Miguel de Allende 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 San Miguel de Allende

As May unfolds in San Miguel de Allende, the city basks in 341 hours of brilliant sunshine, making it the sunniest month of the year. This surge in daylight follows a steady increase in hours since January, where the sun graced the town with 232 hours. By the time April arrives, a spirited climb to 322 hours signals a vibrant spring. Following May’s exuberant peak, the sunshine tends to hover around 321 to 331 hours through the summer months, ensuring plenty of opportunities for outdoor adventures. Even as autumn approaches, the hours gradually taper off, yet the warmth and luminosity of San Miguel remain a delightful companion year-round.

Monthly Sunshine Duration in San Miguel de Allende: May Highlighted

The May sunshine duration represents the total number of hours San Miguel de Allende 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.
JanFebMarAprMayJunJulAugSepOctNovDec232h268h317h322h341h321h331h325h291h288h279h286h
Data source: San Miguel de Allende May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in San Miguel de Allende During May

In San Miguel de Allende, the likelihood of sunny weather in May stands at a moderate 60%, reflecting a trend that unfolds as the year progresses. After witnessing a peak of 87% in February and 78% in March, the chances of sunshine dip slightly in April and remain stable into May. This transitional month offers a pleasant reprieve before the significant decrease in sunny days that follows in the summer months of June and July, where chances plummet to 20% and 26%, respectively. Thus, May serves as a sweet spot for sunshine lovers, nestled between the vibrant spring and the more overcast summer, making it a delightful time to enjoy the region's charming landscapes and outdoor activities.

Percentage of Sunny Days in May in San Miguel de Allende

The chart illustrates the percentage of sunny days in San Miguel de Allende 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 San Miguel de Allende experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec60%87%78%68%60%20%26%40%21%41%60%70%
Data source: San Miguel de Allende May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in San Miguel de Allende in May

In San Miguel de Allende, Mexico, daylight duration exhibits a captivating pattern throughout the year. Starting with a consistent 11 hours in January and February, the days gradually lengthen as spring approaches. By March and April, daylight increases to 12 hours, heralding a shift to warmer months. The pinnacle is reached in May, where residents benefit from a generous 13 hours of sunshine, and this ample daylight continues through June, July, and into August. As the year progresses into September and October, daylight begins to wane, settling back to 12 hours for a brief period before dipping to 11 hours in November. By December, the cycle concludes with 10 hours of daylight, inviting reflection on the diverse rhythms of nature in this enchanting Mexican city.

Average Daylight Hours in San Miguel de Allende for May

The chart illustrates the variation in daylight duration in San Miguel de Allende 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 38m13h 8m13h 22m13h 14m12h 48m12h 13m11h 37m11h 7m10h 52m
Data source: San Miguel de Allende daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in San Miguel de Allende

In May, San Miguel de Allende experiences a gentle breeze with an average wind speed of 2.5 m/s (6 mph), slightly below the spring month's peak in April but consistent with the overall trend of mild winds leading into the warmer summer months. This tranquil airflow continues the pattern established earlier in the year, where wind speeds have generally hovered around the 5 to 6 mph mark from January through April, creating an inviting atmosphere for outdoor activities. As the city transitions into June, the winds are expected to ease slightly, reflecting the natural shift towards the warmer and drier conditions of summer. Overall, May stands out as a delightful time to enjoy both the scenery and the soothing breezes that define this charming Mexican town.

Average May Wind Speed in San Miguel de Allende

The chart displays monthly wind speed patterns in San Miguel de Allende, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.32.92.62.92.5 m/s2.42.12.61.92.12.32.0
Data source: San Miguel de Allende May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in San Miguel de Allende Compares to Other Months

The weather in San Miguel de Allende 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 San Miguel de Allende and find detailed weather information for every month.

May and January present stark contrasts in weather. In May, temperatures soar with a minimum of 9°C, an average of 23°C, and a maximum reaching up to 36°C, accompanied by a moderate precipitation of 38 mm over six days. The humidity hovers at 67%, creating a warm and somewhat muggy atmosphere. Conversely, January experiences a cooler climate with temperatures dipping to a minimum of -1°C, averaging 14°C and peaking at 28°C. This month features minimal precipitation at just 3 mm, with no rainy days, and a higher humidity level of 74%, giving January a crisp and dry feel. For a more detailed insight into January's weather, check out San Miguel de Allende weather in January.

When comparing the weather in May and February, a noticeable difference in temperature and precipitation emerges. May experiences temperatures ranging from a minimum of 9°C (49°F) to a maximum of 36°C (97°F), with an average temperature of 23°C (73°F). In contrast, February has a more moderate temperature range, with a minimum of 1°C (35°F) and a maximum of 32°C (89°F), leading to an average of 17°C (62°F). Additionally, May is characterized by higher precipitation, with about 38 mm (1.5 in) over six days, while February sees significantly less rainfall at just 6 mm (0.2 in) across only one day. Humidity levels are relatively similar, with May at 67% and February at 65%. For a detailed look at the conditions during this cooler month, you can visit San Miguel de Allende weather in February.

In comparing the weather between March and May, it's clear that May experiences warmer temperatures with a minimum of 9°C (49°F) and an average high of 36°C (97°F), whereas March starts off cooler, with a minimum of 2°C (35°F) and averages peaking at 34°C (93°F). Additionally, May sees significantly more precipitation, reaching 38 mm (1.5 in) over six days, compared to March's 9 mm (0.3 in) spread over just two days. Humidity also rises in May to 67%, compared to March's lower 58%, making May feel quite balmy. For more specific details on March weather patterns, you can check San Miguel de Allende weather in March.

In comparing the weather of May and April, May experiences a broader temperature range, with minimums of 9°C (49°F), averages of 23°C (73°F), and maximums soaring to 36°C (97°F). This is a slight increase from April, which sees minimums of 6°C (44°F), averages of 21°C (71°F), and maximums of 35°C (95°F). May also brings more precipitation, with 38 mm (1.5 in) over six days compared to April's 7 mm (0.3 in) across just two days. Additionally, humidity rises in May to 67%, compared to April's 58%, indicating that May tends to feel more muggy. For a closer look at April's climate specifics, you can check San Miguel de Allende weather in April.

May and June display distinct weather patterns, with May generally experiencing warmer temperatures and less precipitation. In May, temperatures range from a minimum of 9°C (49°F) to a maximum of 36°C (97°F), averaging 23°C (73°F), while June sees slightly cooler averages, ranging from 9°C (49°F) minimum to 35°C (96°F) maximum, averaging 21°C (70°F). Notably, June is significantly wetter, with 145 mm (5.7 in) of rainfall over 14 days compared to May’s 38 mm (1.5 in) over just 6 days. Humidity levels also increase in June to 76%, compared to May’s 67%. For more details on June weather, see San Miguel de Allende weather in June.

May typically features warmer temperatures, with a minimum of 9°C (49°F) and a maximum of 36°C (97°F), leading to an average of 23°C (73°F). In contrast, July sees slightly milder conditions, with a minimum of 11°C (52°F) and a maximum of 33°C (91°F), averaging 20°C (68°F). While May experiences relatively low precipitation at 38 mm (1.5 in) over 6 days, July is significantly wetter, with 117 mm (4.6 in) of rain spread over 17 days. Notably, both months maintain consistent humidity levels at 67%. For more information on July weather, you can check San Miguel de Allende weather in July.

May and August present distinct weather patterns, with May typically warmer and drier than August. In May, temperatures range from a minimum of 9°C (49°F) to a maximum of 36°C (97°F), averaging around 23°C (73°F) and resulting in only 38 mm (1.5 in) of precipitation over approximately 6 days. Conversely, August features cooler temperatures, with a range from 12°C (53°F) to 32°C (90°F) and an average of 20°C (69°F). August experiences significantly higher precipitation at 94 mm (3.7 in) over 13 days, along with a similar humidity level of 68%. For more detailed information, you can check San Miguel de Allende weather in August.

May and September offer notable contrasts in weather. In May, temperatures range from a minimum of 9°C (49°F) to a maximum of 36°C (97°F), with an average of 23°C (73°F). The month sees relatively low precipitation levels, totaling 38 mm (1.5 in) over just six days, and humidity is a comfortable 67%.

In contrast, September presents cooler conditions with minimum temperatures around 8°C (47°F) and a maximum of 31°C (88°F), averaging 19°C (67°F). However, this month experiences much higher rainfall, with 131 mm (5.2 in) over 15 days, accompanied by increased humidity at 81%. For more detailed information on September weather, you can visit San Miguel de Allende weather in September.

May and October showcase distinct weather patterns that reflect the transition between spring and fall. In May, temperatures range from a mild 9°C (49°F) at night to a scorching 36°C (97°F) during the day, with an average temperature of 23°C (73°F) and relatively low humidity at 67%. The month sees an average of 38 mm (1.5 in) of precipitation over approximately 6 days.

In contrast, October experiences cooler conditions, with temperatures dipping to a minimum of 5°C (42°F) and a maximum of 31°C (87°F), yielding an average of 18°C (65°F). The month receives a higher level of rainfall, totaling around 50 mm (2.0 in) across 8 days, and exhibits increased humidity at 83%. This shift highlights the transition from the warmer, drier climate of May to the cooler and wetter conditions that characterize October. For a closer look at October's weather specifics, check out San Miguel de Allende weather in October.

May and November present contrasting weather patterns in terms of temperature and humidity. In May, temperatures range from a minimum of 9°C (49°F) to a maximum of 36°C (97°F), with an average of 23°C (73°F). This month also experiences higher precipitation, totaling 38 mm (1.5 in) over about 6 days, and a relative humidity of 67%. In stark contrast, November sees cooler temperatures, with a minimum of 0°C (32°F), an average of 16°C (61°F), and a maximum of 30°C (87°F). Precipitation is significantly lower at 18 mm (0.7 in) over just 2 days and comes with higher humidity at 84%. For more details on the weather in November, check out San Miguel de Allende weather in November.

In May, the weather is typically warm and vibrant, with temperatures ranging from a minimum of 9°C (49°F) to a maximum of 36°C (97°F) and an average of 23°C (73°F). This month sees about 38 mm (1.5 in) of precipitation spread over 6 days and maintains a humidity level of 67%. In contrast, December offers a cooler climate, with temperatures ranging from a chilling -2°C (29°F) to a milder 28°C (83°F), averaging around 14°C (58°F). Notably, December experiences minimal precipitation, totaling only 5 mm (0.2 in) over the entire month, with no rainy days and a higher humidity of 81%. For more detailed insights about December weather, you can refer to San Miguel de Allende weather in December.

Compare San Miguel de Allende's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in San Miguel de Allende

As May arrives in San Miguel de Allende, the weather transforms into a warm and inviting experience, making it a delightful month for both locals and visitors. With temperatures peaking around 36°C (97°F), you can expect plenty of sunshine and warmer days, contrasting with the cooler temperatures of earlier months. While the average temperature settles at a comfortable 23°C (73°F), the nights remain refreshingly cool, ensuring a pleasant respite after the heat of the day. May also marks one of the drier periods, with only a few days of light rain, totaling around 38 mm (1.5 in), helping to keep the lush landscapes vibrant but not overly humid. The humidity hovers around 67%, providing a balmy environment that is characteristic of early summer. If you’re planning a visit, you’ll find this blend of warmth and mildness particularly enjoyable, and for more detailed insights into the overall climate, check out San Miguel de Allende Climate.