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October Weather in Sao Marcos, Brazil

Last updated: August 22, 2025

In October, the average temperature in Sao Marcos, Brazil hovers around 17°C (63°F), with minimums dipping to 5°C (41°F) and soaring to maximums of 33°C (92°F). Expect about 142 mm (5.6 in) of precipitation over 14 days, accompanied by a high average humidity of 84%. Get ready for a mix of warmth and wetness!

October Temperature in Sao Marcos

In October in Sao Marcos, the average temperature is 17°C (63°F). The maximum can reach 33°C (92°F), and the minimum can be as low as 5°C (41°F). This varied climate makes Sao Marcos an ideal destination for travelers seeking both warm days and cool evenings.

October Weather in Sao Marcos: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Sao Marcos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sao Marcos, October typically has an average temperature of 17°C (63°F), with highs reaching up to 33°C (92°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec706967635755535661636568
Data source: Temperature data for Sao Marcos 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.

October Precipitation in Sao Marcos

In Sao Marcos in October, the precipitation amount is 142 mm (5.6 in) occurring over a span of 14 days.

October Precipitation Trends in Sao Marcos

The chart displays monthly precipitation patterns in Sao Marcos, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Sao Marcos, October typically receives around 142 mm (5.6 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec158144124901781251347815614213998
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Sao Marcos

In Sao Marcos in October, humidity is 84%. With an average temperature of 17°C (63°F), this humidity feels like a warm, sticky embrace that can make traveling feel heavy and cumbersome, often leaving visitors yearning for refreshing breezes and shade.

October Average Humidity in Sao Marcos

This chart illustrates the average monthly humidity levels in Sao Marcos, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Sao Marcos is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%77%79%83%88%86%82%77%80%84%83%87%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Sao Marcos

In Sao Marcos in October, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Sao Marcos.

Maximum UV Index Levels in Sao Marcos for October

The chart shows the monthly maximum UV Index (UVI) for Sao Marcos in October, 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 October, the maximum UV index in Sao Marcos typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15141310655710131415
Data source: Sao Marcos October 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 October Weather in Sao Marcos Compares to Other Months

Weather in Sao Marcos varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Sao Marcos, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Sao Marcos, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (71°F)158 mm (6.2 inches)80%extreme
February Weather20°C (69°F)144 mm (5.7 inches)77%extreme
March Weather19°C (67°F)124 mm (4.9 inches)79%extreme
April Weather17°C (63°F)90 mm (3.6 inches)83%very high
May Weather14°C (57°F)178 mm (7.0 inches)88%high
June Weather13°C (55°F)125 mm (4.9 inches)86%moderate
July Weather12°C (53°F)134 mm (5.3 inches)82%moderate
August Weather13°C (56°F)78 mm (3.1 inches)77%high
September Weather16°C (61°F)156 mm (6.1 inches)80%very high
October Weather17°C (63°F)142 mm (5.6 inches)84%extreme
November Weather18°C (65°F)139 mm (5.5 inches)83%extreme
December Weather20°C (69°F)98 mm (3.8 inches)87%extreme

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