Last updated: August 21, 2025
Experience the enchanting May weather of Santiago Atitlán, Guatemala, where temperatures dance between a comfortable 12°C (54°F) minimum and a balmy 26°C (78°F) maximum, averaging around 18°C (65°F). This month, the region receives significant rainfall, totaling 449 mm (17.7 in) over 29 days, creating a lush, vibrant landscape. With average humidity levels at 65%, visitors can expect a refreshing atmosphere perfect for exploring the stunning views and rich culture of this lakeside gem. Whether strolling through local markets or enjoying the serene lake, May offers a uniquely captivating experience in Santiago Atitlán.
In May, Santiago Atitlán experiences mild and pleasant temperatures, with minimums around 12°C (54°F) and maximums reaching 26°C (78°F). This slight upward trend from the cooler months of April and March sets the stage for a comfortable ambiance, perfect for exploring the vibrant culture and stunning landscapes of the region. With an average temperature of 18°C (65°F), May strikes a delightful balance, making it an ideal time for outdoor adventures amidst the breathtaking lakeside scenery. As spring transitions into the warmer months, visitors can expect a mix of sunny days complemented by refreshing breezes, creating an inviting atmosphere to enjoy everything Santiago Atitlán has to offer.
May marks a significant shift in precipitation patterns in Santiago Atitlán, Guatemala, as the region experiences its peak rainfall of the year. With an impressive 449 mm (17.7 in) of precipitation falling over 29 days, May stands out as a month of abundant moisture, far surpassing the totals of earlier months. This dramatic increase follows April's rainfall of 159 mm (6.2 in) and sets the stage for the wet season ahead, leading into June's substantial 405 mm (15.9 in). The relentless showers not only contribute to the lush landscapes but also hint at the evolving climate dynamics of the region. As the rains pour, the vibrant ecosystem of Santiago Atitlán flourishes, reflecting the beautiful but challenging balance of nature during this rainy season.
In May, humidity in Santiago Atitlán, Guatemala settles at a comfortable 65%, marking a noticeable uptick from the preceding months. As spring transitions into summer, this increase is part of a broader trend where humidity consistently rises from the low of 57% in April. This elevation sets the stage for the wetter months ahead, where humidity gradually climbs, reaching peaks of 82% by August and September. Visitors in May can expect a fresh, vibrant atmosphere, making it an ideal time to enjoy the lush landscapes before the peak humidity encapsulates the region later in the season.
In May, Santiago Atitlan experiences a UV Index of 15, categorized as extreme exposure, meaning you can get sunburned in just 10 minutes. This elevation follows a steady rise from January through April, peaking in April with a UV Index of 16. Following May, the index levels off at 15 for the next two months before gradually decreasing in the latter half of the year. This trend indicates that as the dry season transitions into the wetter months, UV exposure remains consistently high, emphasizing the need for sun protection during this vibrant time in Guatemala. For detailed information and guidance on managing your sun exposure, check out the Santiago Atitlan UV Index.
UV Risk Categories
In Santiago Atitlán, Guatemala, the month of May bathes the landscape in 301 hours of glorious sunshine, a radiant continuation of the brighter spring months. Following a peak in March with 321 hours, sunshine hours dip slightly in April before stabilizing in May, reflecting a gradual shift as the rainy season approaches. This transition is mirrored throughout the year, as June experiences a decrease to 272 hours before gradually rebounding in July and August. The overall trend showcases a rhythmic pattern of sunshine that invites both relaxation and adventure, making Atitlán a vibrant destination for those seeking to bask in its natural beauty.
As the seasons shift in Santiago Atitlán, Guatemala, May brings a notable dip in sunny prospects with only a 17% chance of sunshine, portraying a stark contrast to the more favorable weather seen in the earlier months. This trend of diminishing sunlight is apparent as the sunny probabilities drop from 29% in April to this least bright point in May. Following May, the chance for sun remains low through June, hitting a low 9%, before slowly creeping back up in July. This pattern underscores a transition to a wetter season as the region braces for more cloudy days, signaling the approach of the rainy months ahead.
In Santiago Atitlán, Guatemala, the pattern of daylight duration reveals a fascinating consistency throughout the year. The year kicks off with 11 hours of sunlight in January and February, making the early months relatively shorter. As the days gradually lengthen, March and April see an increase to 12 hours, which continues through May and remains steady until September. This consistent 12-hour daylight span during the middle of the year creates a perfect backdrop for outdoor activities and exploration, embracing the vibrancy of the region. As the year draws to a close, the daylight once again shortens, returning to 11 hours from October to December, reestablishing a sense of seasonal rhythm in this picturesque location.
In Santiago Atitlán, Guatemala, May brings a gentle breeze, with average wind speeds dropping to 1.4 m/s (3 mph). This slight decline from the earlier months reflects a trend of diminishing winds as the region transitions into the warmer, more humid months of the year. While January through April boast more robust breezes averaging around 1.6 to 1.9 m/s, the winds continue to soften into June, reaching their calmest point. This gradual shift in wind patterns not only defines the character of May but also sets the stage for the tranquil, serene atmosphere that the lake and surrounding landscapes are known for during this time of year.
Weather in Santiago Atitlan varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Santiago Atitlan, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in May and January, we can see distinct differences in temperature and precipitation. May enjoys milder temperatures, with averages around 18°C (65°F) and highs reaching 26°C (78°F), while January presents cooler conditions, averaging 16°C (61°F) and peaking at 24°C (76°F). However, May is notably wetter, with 449 mm (17.7 in) of rain over 29 days, compared to January’s much drier weather with only 16 mm (0.6 in) across just 5 days. Additionally, humidity levels are higher in January at 76%, compared to May's 65%. For more detailed insights, check out Santiago Atitlan weather in January.
When comparing the weather in May and February, both months showcase similar maximum temperatures, peaking at around 26°C (79°F). However, May tends to be warmer overall, with average temperatures reaching 18°C (65°F) compared to February's 17°C (62°F). A significant difference lies in precipitation; May experiences a much higher rainfall of 449 mm (17.7 in) over 29 days, while February only sees 34 mm (1.3 in) over just 8 days. Humidity levels are quite close, with May at 65% and February at 68%, but the wetter conditions in May can make it feel more humid overall. For a more detailed overview of February's climate, you can visit Santiago Atitlan weather in February.
When comparing the weather in May and March, notable differences emerge in temperature and precipitation patterns. May tends to be warmer with an average temperature of 18°C (65°F) and reaching highs of 26°C (78°F), while March features slightly cooler temperatures, averaging at 17°C (63°F) with maximums of 27°C (80°F). However, March experiences significantly less precipitation, totaling just 53 mm (2.1 in) over 8 days, in stark contrast to May's much wetter conditions, which see 449 mm (17.7 in) across 29 days. Additionally, humidity levels are slightly higher in May at 65%, compared to March's 59%. For more detailed weather information, you can refer to Santiago Atitlan weather in March.
In comparing the weather of May and April, both months exhibit similar average temperatures, with April's minimum slightly lower at 10°C (50°F) compared to May's 12°C (54°F), though both months reach a maximum of 26°C (79°F) in April and 26°C (78°F) in May. However, May is marked by significantly higher precipitation, recording 449 mm (17.7 in) over 29 days, compared to April's 159 mm (6.2 in) over just 19 days. Additionally, the humidity rises in May to 65%, up from April’s 57%. For a detailed look at April's weather, you can check out Santiago Atitlan weather in April.
In May, the weather showcases a broader temperature range with minimums of 12°C (54°F) and maximums reaching up to 26°C (78°F), resulting in an average temperature of 18°C (65°F). This month experiences significant rainfall, totaling 449 mm (17.7 in) over 29 days, alongside a humidity level of 65%. In contrast, June sees slightly warmer minimum temperatures at 13°C (56°F) and a decrease in maximum temperatures to 24°C (76°F), maintaining an average similar to May at 18°C (64°F). Precipitation also decreases in June, with totals of 405 mm (15.9 in) over 27 days, while humidity rises slightly to 66%. For more specifics on June weather, you can check out Santiago Atitlan weather in June.
May and July in Santiago Atitlán exhibit distinct weather characteristics, despite their similar average temperatures. May typically sees a broader range of temperatures, with a minimum of 12°C (54°F) and a maximum of 26°C (78°F), alongside substantial rainfall of 449 mm (17.7 in) spread over 29 days, which contributes to a humidity level of 65%. In contrast, July experiences slightly milder temperatures, with a minimum of 13°C (55°F) and a maximum of 25°C (76°F). The month is significantly drier, receiving only 157 mm (6.2 in) of precipitation over 16 days, leading to increased humidity at 75%. For a closer look at weather specifics, visit Santiago Atitlan weather in July.
In comparing the weather between May and August, both months exhibit similar temperature ranges, with minimums around 12°C (54°F), averages near 18°C (64-65°F), and maximums reaching up to 26°C (78°F). However, May experiences significantly higher precipitation, with 449 mm (17.7 in) spread over 29 days, while August sees a reduction to 290 mm (11.4 in) over 24 days. Additionally, humidity levels are noticeably higher in August at 82%, compared to May’s 65%. For more detailed information, you can check Santiago Atitlan weather in August.
May and September in Santiago Atitlan share similar minimum temperatures at 12°C (54°F) and average temperatures around 18°C. However, May sees warmer maximum temperatures of 26°C (78°F) compared to September's 24°C (75°F). Both months experience significant rainfall, but May has higher precipitation at 449 mm (17.7 in) over 29 days, while September has 358 mm (14.1 in) over 26 days. September is notably more humid at 82%, compared to May's 65%. For more details, you can check Santiago Atitlan weather in September.
In May, the weather in Santiago Atitlán is generally warmer, with average temperatures ranging from 12°C (54°F) at night to a pleasant 26°C (78°F) during the day. However, May also experiences significant rainfall, with 449 mm (17.7 in) spread over 29 days, leading to a relatively high humidity of 65%. In contrast, October sees slightly cooler temperatures, with an average of 17°C (64°F) and a maximum of 24°C (76°F). The month is marked by lower precipitation levels of 292 mm (11.5 in) over 27 days, but humidity increases to 83%. For more specific details about the October weather, you can check Santiago Atitlan weather in October.
In May, the weather is generally warmer with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 26°C (78°F), averaging around 18°C (65°F). This month also experiences significant rainfall, with 449 mm (17.7 in) of precipitation spread over 29 days, contributing to a humidity level of 65%.
In contrast, November sees slightly cooler temperatures, with a minimum of 10°C (51°F) and a maximum of 24°C (75°F), averaging 17°C (63°F). The rainfall is much less in November, with only 64 mm (2.5 in) over 10 days, leading to higher humidity levels at 80%.
For more details about the weather conditions in November, you can check Santiago Atitlan weather in November.
When comparing the weather in May and December, notable differences emerge. May experiences warmer temperatures, with a minimum of 12°C (54°F) and an average of 18°C (65°F), peaking at 26°C (78°F). However, it is also characterized by high precipitation, with 449 mm (17.7 in) falling over 29 days, resulting in a humidity level of 65%. In contrast, December offers milder conditions, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 24°C (75°F) and an average of 16°C (62°F). Precipitation is significantly lower at 22 mm (0.9 in) across just 5 days, but humidity is higher at 76%. For more insights on December weather, you can refer to Santiago Atitlan weather in December.
As May arrives in Santiago Atitlan, the weather marks a vibrant shift compared to previous months. Temperatures tend to embrace warmth, presenting comfortable days ideal for exploration, while nights remain refreshingly cool. However, this month also ushers in increased precipitation, with nearly a month of rainy days, resulting in a lush and thriving landscape. The humidity hovers around a moderate level, contributing to the region's tropical charm. For more detailed insights into how May weather compares to other months, visit Santiago Atitlan Climate.