Last updated: August 21, 2025
In May, the vibrant city of Santiago, Chile experiences a diverse climate, marked by maximum temperatures reaching 28°C (83°F) and an average of 13°C (56°F), creating a comfortable atmosphere for both residents and visitors. As the month progresses, temperatures can dip to a chilly 0°C (32°F), particularly during the nights. With approximately 49 mm (1.9 in) of precipitation spread over 5 days, this lively city enjoys a refreshing transition into winter, while maintaining a moderate humidity level of 64%. Whether you are exploring the bustling markets or the serene parks, May's weather provides a unique backdrop for experiencing Santiago's rich culture and stunning landscapes.
In May, Santiago, Chile, experiences a distinct shift as temperatures begin to cool, reflecting the approaching winter. The minimum temperature dips to 0°C (32°F), while the average settles around a brisk 13°C (56°F), marking a noticeable change from the warmer months. Daytime highs can still reach an enjoyable 28°C (83°F), offering a pleasant contrast against the cooler evenings. This month acts as a transitional phase, where the vibrant energy of summer gives way to the cozy charm of autumn, making it an ideal time for visitors to explore the city’s cultural offerings in a comfortably mild climate.
In May, Santiago, Chile, experiences a noticeable shift in its weather patterns, marked by an increase in precipitation that signals the transition into the winter months. With 49 mm (1.9 inches) of rain falling over just five days, it stands out as a significant uptick from the preceding months, where January through April offered only a few millimeters. This trend sets the stage for June, known for its even heavier rainfall, but May serves as a crucial precursor, revitalizing the landscape and contributing to the city's atmospheric shift. Overall, May's precipitation not only refreshes the surroundings but also reflects the broader climatic changes characteristic of the season in Santiago.
As May arrives in Santiago, Chile, the city's humidity sees a notable increase, reaching 64%—a significant rise from 52% in April. This upward trend marks a transition into the colder months, with humidity levels steadily climbing from spring into winter. With June and July showing even higher figures of 71% and 75%, respectively, it’s clear that May serves as a pivotal point where the air becomes increasingly saturated. The lush greenery that accompanies this heightened moisture prepares the landscape for the chilly winter months ahead, creating a refreshing contrast to the drier summer, where humidity languishes around 41%.
In May, Santiago, Chile, experiences a noticeable decline in UV exposure, with the UV Index dropping to 5, marking it as a moderate risk. This shift allows for a more extended burn time of 30 minutes, in stark contrast to the extreme levels seen in the summer months of January through March, where the UV Index peaked at 14. As spring progresses into early winter, residents and visitors can enjoy outdoor activities with reduced concern for sunburn. However, it’s still wise to stay vigilant and protect your skin, given that UV radiation can still have effects. For more details on daily variations and safety measures, check out Santiago UV Index.
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May in Santiago, Chile marks a transitional phase as the city moves from the bright glow of summer into the chill of winter. While the sunshine hours dip to 259 hours, this decline is part of a broader trend, as the city experiences its peak brightness in the late spring and early summer months, with January basking in 326 hours and November eventually reaching 382 hours. As daylight decreases, Santiago's vibrant autumn foliage and cooler temperatures offer a different kind of charm, making the relatively modest sunlight of May a perfect backdrop for cozy gatherings and cultural events. This shift not only highlights the city's diverse seasonal beauty but also sets the stage for the upcoming winter months, where the landscape takes on a more subdued yet equally captivating character.
In Santiago, Chile, the likelihood of sunny weather experiences a notable shift in May, with chances of sunshine dropping to 54%. This reduction contrasts sharply with the sun-soaked summer months of January (84%) and February (82%), where clear skies reign supreme. As autumn settles in, April maintains a healthy 82%, but May marks the start of a transition toward the cooler, cloudier months of June (50%) and August (48%). Interestingly, after May, the likelihood rebounds in the mid-year, peaking again in July at 70%. This pattern suggests that while May may usher in a more overcast atmosphere, the sun soon returns, offering glimpses of brightness amidst the changing seasons.
As the seasons transition in Santiago, Chile, May heralds the arrival of shorter days, with only 10 hours of daylight—a noticeable shift from the 11 hours experienced in April. This decrease reflects a gradual decline in daylight hours that begins in the late summer months, peaking in January with a generous 14 hours. As fall sets in, the days grow shorter, leading into the mid-year winter months of June and July, where daylight dips to its lowest at 9 hours. Interestingly, this pattern of light and dark promises a gradual return to longer days as spring approaches again, culminating in a full circle back to those sun-drenched 14-hour days by December. The ebb and flow of daylight not only shapes daily activities but also immerses residents in the rich tapestry of seasonal change.
In May, Santiago, Chile experiences a gentle decrease in average wind speed, settling at 1.4 m/s (3 mph). This marks the quietest month in terms of wind from the start of the year, as gusts gradually taper off from the more breezy summer months. Following the peak winds of January and December, which see averages of 1.9 m/s and 2.0 m/s respectively, May provides a brief respite before winter's arrival. As the year progresses, you can notice a subtle but steady return to more stable conditions, with June through August hovering around 1.5 m/s. This trend highlights how the region transitions from warmer to cooler months, creating a serene atmosphere perfect for enjoying the city's outdoor charm.
Weather in Santiago varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Santiago, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January offer distinctly different weather experiences. In May, temperatures range from a chilly 0°C (32°F) at night to a comfortable 28°C (83°F) during the day, with an average of 13°C (56°F). This month sees about 49 mm (1.9 in) of precipitation spread across 5 days, coupled with a humidity level of 64%, making the air feel moist and refreshing. In contrast, January boasts much warmer temperatures, with early mornings starting at a mild 11°C (52°F) and rising to a maximum of 36°C (97°F), averaging 22°C (72°F). Remarkably, January experiences minimal rainfall, with only 7 mm (0.3 in) recorded over the month and no rainy days, and a significantly lower humidity level of 41%. For more detailed information, check out Santiago weather in January.
May and February present distinctly different weather patterns. In February, temperatures are warmer, with an average of 21°C (71°F) and highs reaching up to 34°C (94°F), while humidity is relatively low at 41%. Notably, February experiences little to no precipitation, making it a dry month with no rainy days. In contrast, May brings cooler temperatures, averaging 13°C (56°F), with a maximum of 28°C (83°F). This month also sees increased rainfall, with an average of 49 mm (1.9 inches) of precipitation over five days, contributing to higher humidity levels at 64%. For a detailed look at February's climate, visit Santiago weather in February.
In March, the weather is warmer overall, with average temperatures reaching up to 20°C (68°F) and maximums soaring to 34°C (93°F). The humidity level is relatively low at 46%, and precipitation is minimal, averaging just 4 mm (0.2 in) over 1 day. In contrast, May sees cooler temperatures, with a minimum of 0°C (32°F) and an average of 13°C (56°F), while maximum temperatures can reach 28°C (83°F). Additionally, May experiences more precipitation, totaling 49 mm (1.9 in) over 5 days, along with higher humidity at 64%. For more insights, check out Santiago weather in March.
In comparing the weather of April and May, we see notable differences in temperature and precipitation. April experiences a slightly warmer temperature range, with a minimum of 3°C (38°F) and a maximum of 32°C (91°F), compared to May's cooler minimum of 0°C (32°F) and maximum of 28°C (83°F). Additionally, April has lower precipitation, totaling only 12 mm (0.5 in) over 2 days, while May sees an increase in rainfall to 49 mm (1.9 in) across 5 days, resulting in a higher humidity level of 64% compared to April's 52%. For a more detailed understanding, you can explore Santiago weather in April.
In comparing the weather of May and June, May exhibits a broader temperature range with a minimum of 0°C (32°F) and a maximum of 28°C (83°F), leading to an average of 13°C (56°F). In contrast, June experiences slightly cooler temperatures, with a minimum of -3°C (26°F), a maximum of 23°C (73°F), and a lower average temperature of 9°C (49°F). Precipitation increases significantly in June, reaching 99 mm (3.9 in) over 8 days, compared to May’s 49 mm (1.9 in) over just 5 days. Additionally, June has a higher humidity level at 71%, compared to May's 64%. For more details on June's weather, you can check Santiago weather in June.
May and July present contrasting weather patterns in Santiago. In May, temperatures range from a minimum of 0°C (32°F) to a maximum of 28°C (83°F), with an average temperature of 13°C (56°F). The month typically experiences 49 mm (1.9 in) of precipitation over five days and has a humidity level of 64%. In contrast, July sees cooler temperatures, with a minimum of -3°C (26°F) and a maximum of 24°C (75°F), averaging at 9°C (49°F). Precipitation increases to 62 mm (2.4 in) over the same number of days, accompanied by a higher humidity of 75%. For a more detailed look at the weather conditions during this month, you can visit Santiago weather in July.
May and August present distinct weather characteristics in Santiago. In May, temperatures generally range from a minimum of 0°C (32°F) to a maximum of 28°C (83°F), with an average of 13°C (56°F). The month experiences moderate precipitation of 49 mm (1.9 in) over about 5 days and has a humidity level of 64%. In contrast, August is slightly cooler, with temperatures varying from -2°C (29°F) to a maximum of 26°C (79°F), and an average of 11°C (51°F). This month sees a little more rainfall at 56 mm (2.2 in) spread over 7 days and a higher humidity level of 73%. For more details, you can check Santiago weather in August.
May and September present distinct weather patterns despite their similar average temperatures. In May, temperatures range from a minimum of 0°C (32°F) to a maximum of 28°C (83°F), with an average of 13°C (56°F). The month experiences about 49 mm (1.9 in) of precipitation over 5 days and has a higher humidity level of 64%. In contrast, September sees temperatures dipping slightly to a minimum of -2°C (30°F) and a higher maximum of 31°C (88°F), with the same average of 13°C (56°F). Precipitation is milder at 41 mm (1.6 in) spread across 8 days, and humidity decreases to 56%. For more detailed information about the climate, you can visit Santiago weather in September.
May and October present distinct yet mild weather patterns. In May, temperatures range from a chilly 0°C (32°F) at night to a warm 28°C (83°F) during the day, with an average of 13°C (56°F). The month typically experiences 49 mm (1.9 in) of precipitation over approximately five days, alongside a humidity level of 64%. In contrast, October shows slightly warmer temperatures, with a minimum of 3°C (37°F), an average of 15°C (60°F), and a maximum reaching 32°C (90°F). Rainfall decreases to 36 mm (1.4 in) over the same five days and humidity levels are slightly lower at 61%. For a more detailed look at the weather patterns, you can explore Santiago weather in October.
May and November present notably different weather patterns. In May, temperatures range from a chilly 0°C (32°F) at night to a comfortable 28°C (83°F) during the day, averaging around 13°C (56°F). This month experiences moderate rainfall, with about 49 mm (1.9 in) over five days, and humidity levels reach around 64%. In contrast, November boasts warmer temperatures, with lows of 6°C (44°F) and highs peaking at 34°C (93°F), averaging 19°C (66°F). The month is relatively dry, with only 8 mm (0.3 in) of precipitation on just two days and lower humidity at 52%. For more details, you can check Santiago weather in November.
May and December present contrasting weather conditions. In May, temperatures range from a chilly 0°C (32°F) at night to a pleasant 28°C (83°F) during the day, with an average of 13°C (56°F). The month sees a moderate level of precipitation, totaling 49 mm (1.9 in) over about 5 days, coupled with a relatively high humidity of 64%. In stark contrast, December enjoys much warmer temperatures, with minimums around 10°C (50°F) and daytime highs soaring to 35°C (96°F). This month is notably dry, receiving only 3 mm (0.1 in) of precipitation across zero rainy days and boasting lower humidity at 39%. For more details, check the link: Santiago weather in December.
As May approaches in Santiago, the city experiences a notable shift in weather, transitioning from the warmer months into a cooler, more temperate climate. With comfortable average temperatures and refreshing humidity levels, this month often sees cozy days punctuated by occasional rainfall, making it distinct from the drier, hotter summer. The mild character of May sets the stage for lush landscapes as nature comes alive with the vibrant hues of autumn. For a more in-depth look at what to expect throughout the year, visit Santiago Climate.