May Weather in Santiago Altitlan, Mexico

Last updated: April 22, 2025

May in Santiago Atitlán, Mexico, offers a vibrant blend of warmth and humidity, with maximum temperatures reaching up to 34°C (93°F) and an average temperature of 21°C (70°F). Visitors can expect a refreshing change during the cooler nights, where temperatures can dip to a pleasing 10°C (51°F). However, this month also brings considerable precipitation, averaging 159 mm (6.3 in) across 19 wet days, making it essential for travelers to stay prepared for the occasional downpour. With humidity levels lingering around 72%, the air feels lush and invigorating, perfect for exploring the stunning landscapes and rich culture of this enchanting destination.

May Temperature in Santiago Altitlan

In May, Santiago Atitlán embraces the warmth of spring, with temperatures showcasing a delightful transition. The minimum temperature rises to a comfortable 10°C (51°F), while the average climbs to a pleasant 21°C (70°F). The days can reach a peak of 34°C (93°F), mirroring the patterns of the preceding months where afternoons often flirt with similar highs. This period signals the onset of warmer days, as the region moves from the cooler, brisk vibes of April into the full bloom of its warm season. Outdoor enthusiasts can revel in the pleasant temperatures, making May an ideal time to explore the stunning landscapes and vibrant culture of the area.

May Weather in Santiago Altitlan: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Santiago Altitlan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec596265686968676767666260
Data source: Temperature data for Santiago Altitlan 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 Santiago Altitlan

In May, Santiago Atitlán experiences a significant surge in rainfall, with 159 mm (6.3 in) accumulating over 19 days. This marks a dramatic increase from the preceding months, particularly compared to the 62 mm (2.4 in) recorded in April. As the region transitions into the rainy season, this uptick not only illustrates a shift in weather patterns but also sets the stage for an even wetter June, which sees averages more than double May's totals. The patterns indicate a gradual buildup of precipitation leading into mid-year, as each month from April through September witnesses increasingly heavy rainfall, energetically transforming the landscape and nurturing the rich biodiversity that characterizes this stunning region of Mexico.

May Precipitation Trends in Santiago Altitlan

The chart displays monthly precipitation patterns in Santiago Altitlan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec252527621593412143393452256125
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Santiago Altitlan

In May, Santiago Atitlán experiences a notable increase in humidity, with levels at 72%—a slight rise from April's 67%. This month marks a transition as the region prepares for the wetter months ahead. Humidity trends in Santiago reveal a gradual climb from January's peak at 84%, steadily tapering to a low of 67% in April, before inching back up as summer approaches. Looking ahead, humidity levels are expected to consistently hover between 70% and 80% from this point forward, reaching their highest in the late summer and early fall months. Such fluctuations not only influence daily life but also enhance the area's lush landscapes, setting the stage for vibrant natural beauty throughout the year.

May Average Humidity in Santiago Altitlan

This chart illustrates the average monthly humidity levels in Santiago Altitlan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec84%80%73%67%72%73%76%80%84%89%88%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Santiago Altitlan

In May, Santiago Altitlan experiences a notably high UV Index of 15, categorizing it as extreme with a burn time of just 10 minutes. This trend of intense UV radiation, peaking in May, follows the similarly high levels recorded in March and April. From the beginning of the year, the UV Index steadily climbs, peaking during the warmer months, which underscores the necessity for sun protection. As summer approaches, the UV Index remains high, reaching its maximum in July, suggesting that consistent vigilance against sun exposure is key for residents and visitors alike. For more detailed information on UV levels, visit Santiago Altitlan UV Index.

Maximum UV Index Levels in Santiago Altitlan for May

The chart shows the monthly maximum UV Index (UVI) for Santiago Altitlan 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.
JanFebMarAprMayJunJulAugSepOctNovDec10121414151415131412109
Data source: Santiago Altitlan 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 Santiago Altitlan

May brings a delightful culmination of sunshine to Santiago Atitlán, Mexico, basking in 320 hours of radiant daylight. This month stands out as a peak in the year, following a steady increase from 226 hours in January to a height of 313 hours in April. The trend continues to rise, with May's sunshine flourishing more than the previous months, making it an ideal time for outdoor activities and exploration. Following May, the days begin to shorten slightly with 275 hours in June, yet the warm glow of early summer continues to beckon visitors. This sunshine pattern highlights the vibrant rhythm of the seasons in Santiago Atitlán, underscoring the region’s allure throughout the spring months.

Monthly Sunshine Duration in Santiago Altitlan: May Highlighted

The May sunshine duration represents the total number of hours Santiago Altitlan 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.
JanFebMarAprMayJunJulAugSepOctNovDec226h270h312h313h320h275h322h307h285h286h283h290h
Data source: Santiago Altitlan May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Santiago Altitlan During May

In May, the likelihood of sunny weather in Santiago Atitlán, Mexico, dips to 28%, marking a notable decline from the previous months. As spring progresses, this month stands in stark contrast to the sunnier spells of February and March, both boasting a 59% chance of sunshine. Though May offers a modest share of sun compared to the brighter spring months, the trend suggests that residents and visitors can expect a mix of weather as they transition toward the rainier summer season, characterized by a sharp drop to just 9% in June. As such, while May may present opportunities for sunlight, it's wise to be prepared for some unexpected cloud cover amid the warmer days.

Percentage of Sunny Days in May in Santiago Altitlan

The chart illustrates the percentage of sunny days in Santiago Altitlan 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 Santiago Altitlan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec25%59%59%49%28%9%18%14%10%23%35%51%
Data source: Santiago Altitlan May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Santiago Altitlan in May

In Santiago Atitlán, Mexico, the nature of daylight duration reveals a rhythmic pattern throughout the year. Starting in January and February, residents enjoy a steady 11 hours of daylight, creating a cozy, consistent atmosphere. As spring approaches, March and April see a slight increase to 12 hours, hinting at the longer days to come. The trend peaks in June and July, when the sun graces the region with 13 hours of light, perfect for outdoor activities and community gatherings. As summer wanes, daylight begins to recede, returning to 12 hours in August and September, before settling back into the familiar 11-hour pattern in the later months of the year. This cyclical change not only shapes the daily lives of the locals but also marks the changing seasons in this vibrant lakeside community.

Average Daylight Hours in Santiago Altitlan for May

The chart illustrates the variation in daylight duration in Santiago Altitlan throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 13m11h 34m12h 2m12h 31m12h 55m13h 6m13h12h 39m12h 11m11h 43m11h 19m11h 7m
Data source: Santiago Altitlan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Santiago Altitlan

In Santiago Atitlán, Mexico, the wind patterns in May reflect a gentle lull in the breeze, averaging at 1.8 m/s (4 mph). This subtle decrease from the higher averages of earlier months suggests the onset of calmer days as spring transitions to summer. The peak wind speeds occur in November, while May sits comfortably near the lower end of the spectrum. Despite this dip, the conditions are still suitable for outdoor activities, allowing visitors to savor the beauty of Lake Atitlán under a gentle, soothing wind. As summer approaches, it is fascinating to observe how the wind dynamics shift, promising a cozy atmosphere for those seeking tranquility amidst stunning landscapes.

Average May Wind Speed in Santiago Altitlan

The chart displays monthly wind speed patterns in Santiago Altitlan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.12.02.22.01.8 m/s1.21.91.61.51.82.41.9
Data source: Santiago Altitlan May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Santiago Altitlan Compares to Other Months

The weather in Santiago Altitlan 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 Santiago Altitlan and find detailed weather information for every month.

May and January offer contrasting weather experiences. In May, temperatures range from a minimum of 10°C (51°F) to a maximum of 34°C (93°F), with an average of 21°C (70°F). The month sees a significant amount of precipitation, totaling 159 mm (6.3 in) over 19 days, and the humidity sits at 72%. In contrast, January features cooler temperatures, with a minimum of 4°C (39°F), an average of 15°C (59°F), and a maximum of 30°C (86°F). This month experiences much less rain, amounting to just 25 mm (1.0 in) over 7 days, although the humidity is slightly higher at 84%. For more detailed information, you can visit Santiago Altitlan weather in January.

When comparing the weather in May and February, notable differences emerge in both temperature and precipitation. May features warmer temperatures, with a minimum of 10°C (51°F) and an average of 21°C (70°F), reaching a maximum of 34°C (93°F). In contrast, February has cooler temperatures, with a minimum of 4°C (40°F) and an average of 17°C (63°F), while the maximum also reaches 33°C (91°F). Precipitation is significantly higher in May, totaling 159 mm (6.3 in) over 19 days, compared to February's modest 25 mm (1.0 in) spread over just 6 days. Additionally, humidity in February stands at 80%, slightly higher than May's 72%. For more specifics on February weather, you can explore Santiago Altitlan weather in February.

In comparing the weather of May and March, May generally offers warmer temperatures, with average highs reaching 34°C (93°F) compared to March's maximum of 33°C (92°F). However, March has a cooler minimum temperature of 6°C (43°F), while May starts at 10°C (51°F). Precipitation levels in May are significantly higher, accumulating 159 mm (6.3 in) over 19 days, in contrast to March's much lighter 27 mm (1.0 in) spread over just 6 days. Interestingly, humidity remains quite similar, with March at 73% and May at 72%. For those interested in a more detailed look at March weather, you can visit this link: Santiago Altitlan weather in March.

In comparing the weather of May and April, we see a notable increase in average temperatures, with May experiencing a minimum of 10°C (51°F) and an average of 21°C (70°F), whereas April has a slightly lower minimum of 8°C (46°F) and a similar average of 20°C (68°F). Both months share a maximum temperature of around 34°C (94°F), but May is characterized by significantly higher precipitation, recording 159 mm (6.3 in) across 19 days compared to April's 62 mm (2.4 in) over 12 days. Additionally, May has a slightly higher humidity level of 72%, up from April's 67%. For more detailed insights, you can check Santiago Altitlan weather in April.

In May, the weather features a minimum temperature of 10°C (51°F) and an average of 21°C (70°F), peaking at a maximum of 34°C (93°F). During this month, the area experiences 159 mm (6.3 in) of precipitation across 19 days, with humidity levels around 72%.

In contrast, June sees a slight increase in minimum temperature at 13°C (55°F) but averages a cooler 20°C (68°F), with a maximum of 32°C (89°F). Rainfall significantly rises to 341 mm (13.4 in) over 25 days, and humidity remains similar at 73%. This shift in weather highlights June's increased precipitation and slightly cooler average temperatures. For more details, visit Santiago Altitlan weather in June.

In May, the weather tends to be warmer, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 34°C (93°F), averaging around 21°C (70°F). While May experiences a reasonable amount of rainfall at 159 mm (6.3 in) over 19 days, it maintains a humidity level of 72%. In contrast, July is cooler, with temperatures ranging from 13°C (55°F) to a maximum of 28°C (83°F) and an average temperature of 19°C (67°F). July is also wetter, with precipitation increasing to 214 mm (8.4 in) spread over 28 days, and humidity rises slightly to 76%. For more details on July's weather conditions, visit Santiago Altitlan weather in July.

In comparing the weather between May and August, notable differences emerge. May typically experiences warmer temperatures, with a minimum of 10°C (51°F) and a maximum of 34°C (93°F), while August sees slightly cooler temperatures, peaking at 29°C (84°F) and a minimum of 13°C (55°F). Precipitation is significantly higher in August, accumulating to 339 mm (13.3 in) over 28 days, compared to May's 159 mm (6.3 in) across 19 days. Humidity also rises from 72% in May to 80% in August, contributing to a more muggy atmosphere during the latter month. For a detailed look at what to expect, check out Santiago Altitlan weather in August.

In comparing the weather of May and September, we see distinct differences in temperature and precipitation patterns. May experiences warmer temperatures, with an average of 21°C (70°F) and highs reaching up to 34°C (93°F), while September offers cooler averages of 19°C (67°F) and a maximum of 29°C (85°F). However, September is characterized by significantly higher rainfall, totaling 345 mm (13.6 in) over 26 days, compared to May's 159 mm (6.3 in) over 19 days. Additionally, humidity levels rise in September to 84%, compared to May's 72%. For a more detailed look at the weather in September, you can visit Santiago Altitlan weather in September.

May and October offer distinct weather experiences. In May, temperatures range from a minimum of 10°C (51°F) to a maximum of 34°C (93°F), with an average of 21°C (70°F). The month sees a total precipitation of 159 mm (6.3 in) over 19 days, accompanied by a humidity level of 72%. In contrast, October features slightly cooler temperatures, with a minimum of 10°C (50°F) and a maximum of 31°C (88°F), averaging 19°C (66°F). This month experiences more rainfall, totaling 225 mm (8.9 in) over 23 days, and higher humidity at 89%. For those interested in more specific weather patterns, you can check Santiago Altitlan weather in October.

May and November present distinct weather profiles. In May, temperatures range from a minimum of 10°C (51°F) to a maximum of 34°C (93°F), averaging around 21°C (70°F). However, this month also sees significant rainfall, with 159 mm (6.3 in) spread over 19 days, and a humidity level of 72%. In contrast, November is cooler, with temperatures from 6°C (43°F) to 29°C (85°F) and an average of 16°C (62°F). Precipitation sharply decreases to 61 mm (2.4 in) across just 10 days, and humidity rises to 88%. Overall, May is warmer and wetter, while November is cooler and drier, making each month unique in its own right. For more detailed weather information, check out Santiago Altitlan weather in November.

May and December present quite contrasting weather conditions. In May, temperatures range from a cooler 10°C (51°F) to a warm peak of 34°C (93°F), with an average of 21°C (70°F). This month also sees significant rainfall, with 159 mm (6.3 in) of precipitation spread over 19 days, resulting in a humidity level of 72%. In contrast, December experiences much milder temperatures, with minimums of 3°C (38°F) and a maximum of 29°C (85°F), averaging at 15°C (60°F). The month is notably drier, with only 25 mm (1.0 in) of precipitation over 6 days, leading to higher humidity levels at 88%. For a detailed look at December's weather, visit Santiago Altitlan weather in December.

Compare Santiago Altitlan's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Santiago Altitlan

As May arrives in Santiago Altitlan, it ushers in warmer temperatures, with the heat peaking during the day while cooler nights provide a pleasant contrast. Unlike the cooler preceding months, May's average temperature swings higher, making it the start of a more intense dry season. With 19 rainy days bringing around 159 mm of precipitation, this month holds onto a bit of the wet season's influence, but overall the sunshine prevails. The humidity hovers around 72%, creating a balmy atmosphere that feels markedly different from the preceding months. For a deeper understanding of what to expect throughout the year, explore the full breakdown at Santiago Altitlan Climate.