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March Weather in Santiago, Brazil

Last updated: August 22, 2025

In March, the average temperature in Santiago, Brazil hovers around 22°C (73°F). Expect minimums dipping to 11°C (52°F) and maximums soaring up to 37°C (100°F). Rainfall is fairly common, with an average precipitation of 146 mm (5.7 in) spread over 11 days. The air carries a humidity level of about 73%, making for a warm and often muggy climate.

March Temperature in Santiago

In March in Santiago, the average temperature is 22°C (73°F). The maximum can reach 37°C (100°F), while the minimum can be as low as 11°C (52°F). This makes Santiago a perfect destination for travelers seeking warm weather and plenty of outdoor activities.

March Weather in Santiago: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Santiago, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santiago, March typically has an average temperature of 22°C (73°F), with highs reaching up to 37°C (100°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec777572686158575964677175
Data source: Temperature data for Santiago 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.

March Precipitation in Santiago

In Santiago in March, the precipitation amount is 146 mm (5.7 in) spread over 11 days.

March Precipitation Trends in Santiago

The chart displays monthly precipitation patterns in Santiago, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Santiago, March typically receives around 146 mm (5.7 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec17610114610419511310311715017414389
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Santiago

In Santiago in March humidity is 73%. With an average temperature of 22°C (73°F), this humidity feels like a warm, sticky embrace that can be quite draining for travelers, making outdoor activities more challenging and encouraging frequent breaks in the shade.

March Average Humidity in Santiago

This chart illustrates the average monthly humidity levels in Santiago, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Santiago is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%73%73%81%87%84%80%71%74%78%77%85%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Santiago

In Santiago in March, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Santiago.

Maximum UV Index Levels in Santiago for March

The chart shows the monthly maximum UV Index (UVI) for Santiago in March, 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. In March, the maximum UV index in Santiago typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1514129655710131414
Data source: Santiago March 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.

How March Weather in Santiago Compares to Other Months

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.

This table compares monthly weather conditions in Santiago, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (77°F)176 mm (6.9 inches)74%extreme
February Weather24°C (75°F)101 mm (4.0 inches)73%extreme
March Weather22°C (73°F)146 mm (5.7 inches)73%extreme
April Weather20°C (68°F)104 mm (4.1 inches)81%very high
May Weather16°C (61°F)195 mm (7.7 inches)87%high
June Weather15°C (59°F)113 mm (4.4 inches)84%moderate
July Weather14°C (57°F)103 mm (4.1 inches)80%moderate
August Weather15°C (60°F)116 mm (4.6 inches)71%high
September Weather18°C (64°F)150 mm (5.9 inches)74%very high
October Weather20°C (68°F)174 mm (6.9 inches)77%extreme
November Weather22°C (72°F)143 mm (5.6 inches)77%extreme
December Weather24°C (75°F)89 mm (3.5 inches)85%extreme

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