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October Weather in Montevideo, United States

Last updated: June 24, 2025

In Montevideo, United States, the average temperature in October hovers around 9°C (48°F). However, be prepared for a wide range, as temperatures can dip as low as -16°C (4°F) and soar up to 30°C (86°F). With an average humidity of 82%, the air can often feel quite damp. Expect about 89 mm (3.5 in) of precipitation spread over 8 days, making this month a mix of cool weather and occasional showers.

October Temperature in Montevideo

In October in Montevideo, the average temperature is 9°C (48°F), with maximums reaching up to 30°C (86°F) and minimums dropping as low as -16°C (4°F). Be sure to pack for a wide range of temperatures when traveling during this time.

October Weather in Montevideo: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Montevideo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Montevideo, October typically has an average temperature of 9°C (48°F), with highs reaching up to 30°C (86°F) and lows dropping to around -16°C (4°F).
JanFebMarAprMayJunJulAugSepOctNovDec151532425972747064483323
Data source: Temperature data for Montevideo 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 Montevideo

In Montevideo in October, the precipitation amount is 89 mm (3.5 in) over a span of 8 days.

October Precipitation Trends in Montevideo

The chart displays monthly precipitation patterns in Montevideo, 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 Montevideo, October typically receives around 89 mm (3.5 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec202053691018210213395892638
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Montevideo

In Montevideo in October, humidity is 82%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that seeps into your bones, making it essential to dress in layers for your travels while keeping an umbrella handy for unexpected drizzles.

October Average Humidity in Montevideo

This chart illustrates the average monthly humidity levels in Montevideo, 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 Montevideo is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%89%81%82%76%81%82%83%82%82%87%84%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Montevideo

In Montevideo in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Montevideo.

Maximum UV Index Levels in Montevideo for October

The chart shows the monthly maximum UV Index (UVI) for Montevideo 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 Montevideo typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3557910997532
Data source: Montevideo 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 Montevideo Compares to Other Months

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

This table compares monthly weather conditions in Montevideo, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (15°F)20 mm (0.8 inches)85%moderate
February Weather-9°C (15°F)20 mm (0.8 inches)89%moderate
March Weather0°C (32°F)53 mm (2.1 inches)81%moderate
April Weather6°C (43°F)69 mm (2.7 inches)82%high
May Weather15°C (59°F)101 mm (4.0 inches)76%very high
June Weather22°C (72°F)82 mm (3.2 inches)81%very high
July Weather23°C (74°F)102 mm (4.0 inches)82%very high
August Weather21°C (71°F)133 mm (5.2 inches)83%very high
September Weather18°C (64°F)95 mm (3.8 inches)82%high
October Weather9°C (48°F)89 mm (3.5 inches)82%moderate
November Weather1°C (34°F)26 mm (1.0 inches)87%moderate
December Weather-5°C (24°F)38 mm (1.5 inches)84%low

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