May Weather in Zacatecas, Mexico

Last updated: April 22, 2025

May in Zacatecas, Mexico, brings a vibrant mix of weather patterns that showcase the region's unique climate. With maximum temperatures soaring to 42°C (109°F), the month presents warm days, while the average temperature settles at a comfortable 27°C (81°F), and the minimum drops to a cool 15°C (59°F) at night. Rainfall is moderate, with an average of 68 mm (2.7 in) spread across about 10 days, contributing to a humidity level of 66% that softens the warm air. This blend of heat and moisture creates an invigorating atmosphere, ideal for experiencing the rich cultural landscape of Zacatecas.

May Temperature in Zacatecas

In Zacatecas, Mexico, May ushers in a noticeable warmth as temperatures rise significantly compared to the earlier months of the year. The minimum temperature begins at a pleasant 15°C (59°F), while the average temperature reaches a comfortable 27°C (81°F). It's not just the daytime heat that stands out; May also sees a peak maximum temperature of 42°C (109°F), making it one of the hottest months of the year. This transition marks a shift from the cooler spring conditions, as the region prepares for the summer heat that follows in June. With longer days and vibrant surroundings, May serves as an ideal time for exploring the stunning landscapes and rich culture of Zacatecas while basking in the sunshine.

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

The chart illustrates May temperature patterns in Zacatecas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec596371768184858681746662
Data source: Temperature data for Zacatecas 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 Zacatecas

May marks a significant shift in precipitation patterns for Zacatecas, Mexico, as the region experiences a notable increase in rainfall with 68 mm (2.7 in), a stark contrast to the preceding months. This rise in rainfall is accompanied by an uptick in rainy days, totaling 10 days of precipitation. As the dry spell of April, which sees 40 mm (1.6 in) over just 7 days, gives way to May’s wetter climate, residents can expect more frequent rain showers that invigorate the landscape. The trend continues into June, where precipitation escalates further, highlighting a transitional phase into the wetter season. This pattern not only enhances the local ecosystem but also sets the stage for the lush greenery that follows in the months ahead.

May Precipitation Trends in Zacatecas

The chart displays monthly precipitation patterns in Zacatecas, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2513244068868215110492421
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Zacatecas

In May, Zacatecas experiences a slight rise in humidity, with levels reaching 66%. This marks a subtle shift from the drier conditions of April, which recorded a lower 59% humidity. As spring transitions into summer, humidity levels begin to trend upward, foreshadowing the increasing moisture that follows in the hotter months. Notably, June sees a jump to 71%, but the pleasant feel of May offers a brief respite before the summer heat intensifies. The overall pattern showcases a seasonal ebb and flow, with humidity gradually increasing from the winter months through to late fall, reflecting the region's unique climatic characteristics.

May Average Humidity in Zacatecas

This chart illustrates the average monthly humidity levels in Zacatecas, 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.
JanFebMarAprMayJunJulAugSepOctNovDec75%70%65%59%66%71%57%58%73%76%81%80%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Zacatecas

In Zacatecas, Mexico, May marks the beginning of an unyielding stretch of extreme sun exposure, as the UV Index soars to 12, similar to the following months of June through August. With a burn time of only 10 minutes, it’s crucial to take protective measures during this time. This trend of escalating UV intensity, starting from the moderate levels in January and peaking through the summer months, highlights the importance of being sun-smart. Visitors and residents alike should be aware that the sun can be unforgiving in May, making sunscreen, protective clothing, and shade essential for outdoor activities. For more detailed information on UV levels throughout the year, check out the Zacatecas UV Index.

Maximum UV Index Levels in Zacatecas for May

The chart shows the monthly maximum UV Index (UVI) for Zacatecas 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.
JanFebMarAprMayJunJulAugSepOctNovDec79101212121212111076
Data source: Zacatecas 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 Zacatecas

May heralds a radiant transition in Zacatecas, Mexico, where the sun shines brightly with 328 hours of glorious daylight. This month not only stands out with its abundant sunshine but also reflects a remarkable upward trend as daylight hours increase significantly from the previous months, peaking just before summer. Following the steady climb from 200 hours in January to the vibrant months of April, May’s sunlit days seamlessly prepare the way for an even sunnier June and July, both boasting 339 hours each. As the landscape warms under the generous May sun, residents and visitors alike revel in the perfect conditions for outdoor exploration and cultural festivities, truly embodying the essence of the season.

Monthly Sunshine Duration in Zacatecas: May Highlighted

The May sunshine duration represents the total number of hours Zacatecas 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.
JanFebMarAprMayJunJulAugSepOctNovDec200h246h285h290h328h339h339h346h283h289h255h263h
Data source: Zacatecas May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Zacatecas During May

As May arrives in Zacatecas, Mexico, the likelihood of sunny weather holds steady at 53%, mirroring the month of April. While this may seem slightly less inviting than earlier months like January and March, which boast a 60% chance of sunshine, May's weather trends suggest a transition into the warmer months. Interestingly, June follows closely with a 57% probability of sun, indicating an upward shift in sunny days as summer approaches. Overall, while May offers a fair chance of clear skies, it also sets the stage for the sunnier days that lie ahead in the latter part of the year.

Percentage of Sunny Days in May in Zacatecas

The chart illustrates the percentage of sunny days in Zacatecas 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 Zacatecas experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec60%56%60%53%53%57%44%62%56%61%55%59%
Data source: Zacatecas May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Zacatecas in May

In Zacatecas, Mexico, the transition to May marks a delightful shift in daylight duration, with the hours creeping up to a vibrant 13 hours. This increase reflects a broader trend that begins in February, as daylight gradually extends from 11 hours to a peak in May, continuing through June and July at the same duration. Following the summer months, the sunlight begins to wane, contracting back to 12 hours in August and September, before dipping down again in the latter part of the year. This rhythm of daylight mirrors the changing seasons, offering a beautiful blend of sunlit days that invite residents and visitors alike to enjoy the outdoor splendor that Zacatecas has to offer.

Average Daylight Hours in Zacatecas for May

The chart illustrates the variation in daylight duration in Zacatecas throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 43m11h 17m12h 1m12h 46m13h 23m13h 41m13h 32m12h 58m12h 15m11h 30m10h 52m10h 33m
Data source: Zacatecas daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Zacatecas

In May, Zacatecas experiences a gentle uptick in winds, with an average speed of 3.2 m/s (7 mph), marking it as one of the breezier months of the year. This increase follows a mild April and sets the stage for a summer breeze that lingers into August, which also sees a similar wind speed. Interestingly, the trend shows a gradual rise in wind speeds from the winter months, peaking in early summer before tapering off in September. As spring unfolds, the inviting winds create a refreshing atmosphere, perfect for outdoor explorations under the bright Mexican sky.

Average May Wind Speed in Zacatecas

The chart displays monthly wind speed patterns in Zacatecas, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.32.53.12.93.2 m/s2.72.53.12.32.12.21.9
Data source: Zacatecas May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Zacatecas Compares to Other Months

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

May and January exhibit contrasting weather patterns, showcasing the diversity of the seasons. In May, temperatures range from a mild 15°C (59°F) to a scorching high of 42°C (109°F), with an average of 27°C (81°F), while precipitation occurs over 10 days, accumulating to 68 mm (2.7 in) at a humidity level of 66%. In contrast, January experiences a much cooler climate, with temperatures dipping to a minimum of -1°C (30°F) and reaching a maximum of 34°C (93°F), averaging around 15°C (59°F). Precipitation in January is significantly less, totaling just 24 mm (1.0 in) over 4 days, accompanied by a higher humidity of 75%. For a deeper dive into January's weather conditions, check out Zacatecas weather in January.

In comparing the weather of May and February, it's evident that May is significantly warmer and more humid. May boasts an average temperature of 27°C (81°F) with highs reaching up to 42°C (109°F), while February has a much cooler average of 17°C (64°F) and a maximum of 37°C (99°F). Additionally, precipitation levels are markedly different; May receives about 68 mm (2.7 in) over 10 days, whereas February sees only 13 mm (0.5 in) of rain over just 3 days. Humidity is slightly higher in February at 70%, compared to May's 66%. For more specific insights on February's climate, you can visit Zacatecas weather in February.

The weather in March is significantly cooler compared to May, with average temperatures ranging from a minimum of 4°C (40°F) to a maximum of 38°C (100°F), while May sees much warmer conditions with temperatures fluctuating from 15°C (59°F) to a scorching 42°C (109°F). Additionally, March experiences less precipitation, with only 24 mm (0.9 in) falling over 6 days, whereas May has higher rainfall at 68 mm (2.7 in) across 10 days. Humidity levels are similar in both months, hovering around 65-66%. For more details, you can check out Zacatecas weather in March.

In comparing the weather patterns of May and April, we see a noticeable increase in temperature and humidity. May features a minimum temperature of 15°C (59°F) and an average high of 27°C (81°F), while April starts cooler with a minimum of 7°C (46°F) and an average temperature of 24°C (76°F). The maximum temperatures are slightly higher in both months, with May reaching 42°C (109°F) and April just behind at 41°C (107°F). Additionally, May experiences more precipitation at 68 mm (2.7 in) over 10 days compared to April's 40 mm (1.6 in) across 7 days. The humidity also rises in May, averaging 66% compared to April's 59%. For further details, you can check Zacatecas weather in April.

The weather in May and June shows some notable differences, particularly in temperature and humidity. May experiences a minimum temperature of 15°C (59°F) and an average of 27°C (81°F), while June's minimum rises to 20°C (68°F) with an average temperature of 29°C (84°F). Both months have a maximum temperature of 42°C (109°F), but June is slightly more humid, with humidity levels reaching 71% compared to May’s 66%. Additionally, June sees an increase in precipitation to 86 mm (3.4 in) over 8 days, compared to 68 mm (2.7 in) over 10 days in May. For more detailed insights about June's weather, you can visit Zacatecas weather in June.

In comparing the weather between May and July, May exhibits a wider temperature range, with a minimum of 15°C (59°F), an average of 27°C (81°F), and a maximum of 42°C (109°F). The month also sees more rainy days, totaling 10, with a precipitation of 68 mm (2.7 in) and a humidity level of 66%. In contrast, July brings slightly warmer conditions, with minimum temperatures rising to 21°C (70°F) and an average of 29°C (85°F). Despite experiencing higher overall precipitation at 82 mm (3.2 in), July has fewer rainy days, only 6, and lower humidity at 57%. For a detailed overview of July weather in Zacatecas, visit Zacatecas weather in July.

In comparing the weather between May and August, May tends to be warmer overall, with average temperatures reaching up to 27°C (81°F) and a maximum of 42°C (109°F). It also experiences a higher amount of precipitation, with 68 mm (2.7 in) over 10 days, contributing to a humidity level of 66%. In contrast, August is slightly cooler with an average temperature of 30°C (87°F) and a maximum of 40°C (104°F), but it sees significantly less rainfall, totaling just 15 mm (0.6 in) in about 3 days, resulting in lower humidity at 58%. For more details, you can check Zacatecas weather in August.

May and September share similar average temperatures, both averaging around 27°C (81°F), but exhibit distinct characteristics in their weather patterns. In May, temperatures can soar to a maximum of 42°C (109°F), while September's peak reaches a slightly milder 39°C (102°F). Precipitation levels also differ, with May experiencing 68 mm (2.7 in) over about 10 days, compared to September's higher rainfall of 110 mm (4.3 in) spread across 11 days. Additionally, September is characterized by increased humidity, averaging 72% compared to May's 66%. For more details, check out Zacatecas weather in September.

In May, the weather is characterized by warmer temperatures, with a minimum of 15°C (59°F) and an average high of 27°C (81°F), peaking at a scorching 42°C (109°F). This month experiences relatively higher precipitation levels, totaling 68 mm (2.7 in) over about 10 days, accompanied by a humidity level of 66%.

In contrast, October sees a much cooler climate, with minimum temperatures dropping to 7°C (44°F) and an average high of 24°C (75°F), reaching a maximum of 37°C (100°F). Precipitation decreases to 49 mm (1.9 in) over approximately 8 days, while humidity rises slightly to 76%. For more details on October's weather, you can check Zacatecas weather in October.

May and November showcase strikingly different weather patterns. In May, temperatures can soar from a minimum of 15°C (59°F) to a scorching maximum of 42°C (109°F), with an average of 27°C (81°F). This month experiences significant humidity at 66% and about 68 mm (2.7 in) of rainfall spread over 10 days. In contrast, November brings cooler temperatures, ranging from a minimum of 2°C (35°F) to a maximum of 34°C (94°F), with a milder average of 19°C (67°F). The month sees much less precipitation at only 24 mm (0.9 in) over 5 days and a higher humidity level of 81%. For more details, check out Zacatecas weather in November.

May and December present stark contrasts in weather. In May, temperatures range from a minimum of 15°C (59°F) to a scorching maximum of 42°C (109°F), with an average of 27°C (81°F). This month also experiences significant humidity at 66% and approximately 68 mm (2.7 in) of precipitation over about 10 days. In contrast, December brings much cooler conditions, with temperatures ranging from a low of 2°C (36°F) to a high of 35°C (95°F) and an average of 17°C (62°F). The month features much less rainfall, totaling only 21 mm (0.8 in) over just 3 days, but a higher humidity level of 80%. For more detailed information, visit Zacatecas weather in December.

Compare Zacatecas's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Zacatecas

As May unfolds in Zacatecas, residents and visitors experience a warm and humid climate that sets the stage for the summer months ahead. With temperatures peaking at 42°C (109°F), the warmth becomes more pronounced compared to the cooler, milder conditions of earlier months. This transition brings an average temperature of 27°C (81°F), making afternoons ideal for outdoor adventures, while nights remain pleasantly mild. However, with humidity levels at 66% and precipitation occurring over 10 days, May introduces a refreshing contrast to the drier spells of other seasons. The blend of warmth and occasional rain not only showcases the region's vibrant ecosystem but also enhances the overall experience for those exploring this historic locale. For more information on the seasonal climate variations, check out Zacatecas Climate.