Last updated: August 21, 2025
March in Santiago, Chile, offers a delightful transition from summer to autumn, characterized by warm days and cool nights. The maximum temperature can reach a scorching 34°C (93°F), while the average temperature hovers around a comfortable 20°C (68°F). At night, temperatures drop to a refreshing 6°C (43°F), making evenings particularly pleasant. With just 4 mm (0.2 in) of precipitation over the month and only one day of rain, the humidity level remains moderate at 46%. This blend of warmth and clear skies makes March an ideal time to explore the vibrant culture and stunning landscapes of Santiago.
In March, Santiago, Chile experiences a delightful transition as the summer warmth begins to wane. With minimum temperatures dipping to about 6°C (43°F) and averages settling at around 20°C (68°F)*, the city enjoys pleasantly mild days. The maximum temperature, however, holds strong, reaching up to 34°C (93°F), providing plenty of opportunities for outdoor activities. As the month progresses, you will notice the beginning of autumn reflections in the cooler evenings, a stark contrast to the balmy summer months of January and February. This gradual shift not only offers a more temperate climate but also showcases the beautiful changes in the landscape as nature prepares for the cooler seasons ahead.
In March, Santiago, Chile experiences a slight decrease in precipitation, with only 4 mm (0.2 in) recorded over just one day. This continued decline follows the trends of January and February, which saw minimal rain at 7 mm and 6 mm respectively, signaling the tail end of summer. As the city transitions into autumn, this limited precipitation is a precursor to the more substantial rainfall that arrives in April and beyond, where totals begin to rise dramatically. Overall, the early months of the year in Santiago are characterized by dry conditions, creating a sharp contrast to the wetter months that follow, marking a notable shift in the seasonal climate.
In March, Santiago, Chile, experiences a noticeable uptick in humidity, rising to 46% from the consistent 41% seen in the preceding months of January and February. This increase marks the beginning of a gradual climb in humidity levels that continues into the following months, where April sees a jump to 52% and May further escalates to 64%. This trend highlights a shift towards a more humid climate as summer transitions into autumn, setting the stage for the wetter months ahead. As spring unfolds, Santiago residents can expect this gradual increase, making March a pivotal point in the city’s seasonal humidity pattern.
March in Santiago, Chile, sees a UV Index of 11, categorized as extreme, with a burn time of just 10 minutes. This marks a slight decline from the peak January UV Index of 14, but remains significant as summer transitions to autumn. Notably, the intense exposure continues into April, where the UV Index drops to 7, reflecting a gradual decrease in sun intensity. This trend, while indicating a need for vigilance against UV exposure, also reveals how quickly the seasons shift in this region. For detailed and up-to-date information, visit Santiago UV Index.
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As March unfolds in Santiago, Chile, the city revels in an impressive 362 hours of sunshine, marking a delightful peak in daylight as summer begins to fade. This month not only maintains the trend of increasing sunshine seen from January through February, but it also sets the stage for a gradual decline in daylight hours as autumn approaches. The warm and sunny days of March contrast with the diminished light of the following months, such as April with 301 hours and May with just 259 hours. This transition highlights a seasonal shift, inviting residents and visitors alike to savor the lingering warmth before the cooler months set in, creating a vibrant atmosphere in the city's parks and plazas. Santiago's March sunshine is a perfect backdrop for outdoor activities, celebrations, and relaxation, embodying the essence of late summer in this picturesque South American capital.
In March, the likelihood of sunny weather in Santiago, Chile, stands at a robust 77%, reflecting the city's transition from the scorching summer months. While this percentage marks a decline from the exceptionally bright days of January (84%) and February (82%), it still offers a considerable chance for outdoor enthusiasts to enjoy the milder temperatures and vibrant landscapes. Interestingly, the sunny prospects dip slightly in April but bounce back afterward, suggesting that early fall continues to offer plenty of pleasant days before the cooler months set in. As the seasons shift, March retains its appeal, inviting visitors to revel in the charm of the early autumn sun.
As summer gracefully transitions into autumn, March witnesses a significant reduction in daylight hours in Santiago, Chile, with sunlight lasting approximately 12 hours each day. This marks a gradual decline from the 14 hours enjoyed in January, highlighting the shifting seasons. As the days shorten, the vibrant energy of summer gives way to the more mellow ambiance of autumn, paving the way for cozy evenings and crisp, fresh air. This trend of decreasing daylight continues into April, where only 11 hours remain, setting the stage for a cooler, more reflective time in the Southern Hemisphere.
March in Santiago, Chile, brings a gentle breeze with an average wind speed of 1.7 m/s (4 mph), matching the calmness of February. This slight consistency in wind patterns reflects a tranquil transition into the autumn months, as the average wind speeds subtly decline from January's peak of 1.9 m/s (4 mph). As the seasons shift, April follows closely with a minor drop to 1.6 m/s, indicating that the once brisk summer winds are giving way to the stillness of fall. The overall trend highlights a gradual decrease, inviting residents and visitors alike to enjoy the serene ambiance that March offers, while hinting at the impending quietude of the colder months ahead.
Weather in Santiago varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Santiago, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of March and January, March experiences a broader temperature range, with minimums of 6°C (43°F) and maximums reaching up to 34°C (93°F), while January maintains higher minimum and maximum temperatures, and averages 22°C (72°F). Although both months have low precipitation levels, March sees about 4 mm (0.2 in) of rain over just 1 day, whereas January is drier with 7 mm (0.3 in) but no recorded rain days. Additionally, January boasts slightly lower humidity at 41% compared to March's 46%. For more details on January weather, you can visit Santiago weather in January.
In comparing the weather between February and March, we observe that March features a slightly broader temperature range, with minimums of 6°C (43°F) and maximums reaching 34°C (93°F), while February maintains a higher minimum temperature of 10°C (50°F) and a similar maximum of 34°C (94°F). Notably, both months experience minimal precipitation, but February enjoys a dry streak with no recorded rainy days, compared to March, which sees just 1 day of light rain and a total of 4 mm (0.2 in) of precipitation. Additionally, March has a higher average humidity of 46% compared to February's 41%. For more details, visit Santiago weather in February.
In comparing the weather between March and April, we can observe some notable differences. March typically enjoys warmer temperatures, with a minimum of 6°C (43°F), averaging around 20°C (68°F), and peaking at 34°C (93°F). In contrast, April sees slightly cooler conditions, featuring a minimum temperature of 3°C (38°F) and an average of 16°C (62°F), with a maximum of 32°C (91°F). Additionally, April experiences more precipitation, accumulating 12 mm (0.5 in) over 2 days, compared to March's 4 mm (0.2 in) over just 1 day. Humidity also increases in April, reaching 52% versus March's 46%. For more details on the climate during this month, check out Santiago weather in April.
In March, the weather typically features warmer temperatures, with a minimum of 6°C (43°F) and an average high reaching up to 34°C (93°F), while the humidity levels sit at a comfortable 46%. With only 4 mm (0.2 in) of precipitation over just one day, March is generally a dry month. In contrast, May sees a significant drop in temperature, with lows dipping to 0°C (32°F) and an average high of 28°C (83°F). The month is notably wetter with 49 mm (1.9 in) of precipitation across five days and higher humidity levels at 64%. For more details on the weather in May, check out Santiago weather in May.
Comparing the weather in March and June reveals significant differences in temperature and precipitation. March experiences much warmer conditions with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 34°C (93°F), alongside very little precipitation of just 4 mm (0.2 in) over a single day, resulting in a relatively dry atmosphere with 46% humidity. In contrast, June features much cooler temperatures, with a minimum of -3°C (26°F) and a maximum of 23°C (73°F). This month sees a substantial increase in precipitation, totaling 99 mm (3.9 in) over eight days, leading to a much higher humidity level of 71%. For more insights on weather specifics during this month, check out Santiago weather in June.
In March, the weather showcases a warm range, with temperatures reaching a comfortable average of 20°C (68°F) and peaking at 34°C (93°F), accompanied by low humidity at 46% and minimal precipitation. In contrast, July presents a much cooler climate, with average temperatures dropping to 9°C (49°F) and daytime highs around 24°C (75°F). Additionally, July experiences significantly more precipitation, totaling 62 mm (2.4 in) over about five days, along with increased humidity at 75%. For a more detailed overview, explore Santiago weather in July.
March and August present strikingly different weather patterns. In March, the temperatures range from a mild 6°C (43°F) at night to a warm average of 20°C (68°F) and can peak at a scorching 34°C (93°F). The month sees minimal rainfall, with only about 4 mm (0.2 in) of precipitation over just 1 day, and the humidity levels hover around 46%, resulting in a relatively dry ambiance. In contrast, August experiences cooler temperatures, with lows dipping to -2°C (29°F) and a daytime average of 11°C (51°F), peaking at 26°C (79°F). The precipitation levels rise significantly to 56 mm (2.2 in) spread over 7 days, leading to higher humidity levels at 73%. For more details on the weather in August, you can check Santiago weather in August.
March and September showcase strikingly different weather conditions. In March, temperatures range from a mild 6°C (43°F) at night to a warm 34°C (93°F) during the day, with an average of 20°C (68°F). This month experiences minimal precipitation, averaging only 4 mm (0.2 inches) over just one day, accompanied by relatively low humidity at 46%.
In contrast, September brings cooler temperatures, with nighttime lows dipping to -2°C (30°F) and daytime highs reaching a pleasant 31°C (88°F), averaging around 13°C (56°F). However, this month sees a significant increase in precipitation, with 41 mm (1.6 inches) expected over about eight days, resulting in higher humidity levels at 56%. For more detailed insights into September's climate, check out Santiago weather in September.
March and October present distinct weather characteristics in terms of temperature and precipitation. In March, temperatures range from a minimum of 6°C (43°F) to a maximum of 34°C (93°F), with an average temperature of 20°C (68°F) and very little precipitation, only about 4 mm (0.2 in) across just 1 day. In contrast, October sees cooler temperatures, with a minimum of 3°C (37°F), an average of 15°C (60°F), and a maximum of 32°C (90°F). This month experiences significantly higher precipitation, totaling 36 mm (1.4 in) over about 5 days, and higher humidity at 61%. For more detailed information about the weather during this month, you can check Santiago weather in October.
March generally offers warmer weather compared to November, with average temperatures reaching up to 20°C (68°F) and maximums climbing as high as 34°C (93°F). In contrast, November's temperatures are slightly cooler, with an average of 19°C (66°F) and the same high of 34°C (93°F). Precipitation is minimal in both months, but November sees a slight increase to 8 mm (0.3 in) over two days, compared to March's 4 mm (0.2 in) on just one day. Additionally, humidity levels rise in November to 52%, making it feel a bit more humid compared to March's 46%. For more details, you can check Santiago weather in November.
March and December present warm weather in Santiago, though with some notable differences. In March, temperatures range from a minimum of 6°C (43°F) to a maximum of 34°C (93°F), with an average temperature of 20°C (68°F). The month experiences a bit more precipitation, with 4 mm (0.2 in) across one day and a humidity level of 46%. In contrast, December sees slightly higher temperatures, with a minimum of 10°C (50°F), an average of 21°C (70°F), and a maximum of 35°C (96°F). Notably, December enjoys dry conditions, recording just 3 mm (0.1 in) of precipitation over zero days, accompanied by lower humidity at 39%. For more specific details, refer to Santiago weather in December.
As March unfolds in Santiago, the weather begins to transition from the heat of summer to the cooler embrace of autumn. With an average temperature of 20°C (68°F), visitors can enjoy pleasant days, perfectly balancing warmth and mildness. Unlike the peak summer months, which can soar to 34°C (93°F), March offers a welcome respite, with minimal precipitation—only about 4 mm (0.2 in) over just one day—drawing in outdoor enthusiasts. The 46% humidity adds to the comfortable ambiance, making it an ideal time for exploration. For a deeper look into what Santiago has to offer throughout the year, check out Santiago Climate.