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October Weather in Marietta, United States

Last updated: June 24, 2025

In Marietta, United States, the average temperature during October is a pleasant 18°C (65°F). However, be prepared for a range, as it can drop to a chilly 1°C (33°F) or soar to a warm 33°C (92°F). Expect 138 mm (5.4 in) of precipitation spread over about 8 days, accompanied by an average humidity level of 72%.

October Temperature in Marietta

In October in Marietta, the average temperature is 18°C (65°F). The maximum can reach 33°C (92°F), and the minimum can be as low as 1°C (33°F). This range makes Marietta a great destination for travelers who enjoy a mix of warm days and cooler nights.

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

The chart illustrates October temperature patterns in Marietta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Marietta, October typically has an average temperature of 18°C (65°F), with highs reaching up to 33°C (92°F) and lows dropping to around 1°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec434657637280848377655448
Data source: Temperature data for Marietta 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 Marietta

In Marietta in October, the precipitation amount is 138 mm (5.4 in) spread over the course of 8 days.

October Precipitation Trends in Marietta

The chart displays monthly precipitation patterns in Marietta, 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 Marietta, October typically receives around 138 mm (5.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec6184959612210348941021385157
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Marietta

In Marietta in October humidity is 72%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace, making traveling somewhat uncomfortable as the air clings to your skin and the heat can be stifling, yet it's perfect for enjoying leisurely strolls under the shade.

October Average Humidity in Marietta

This chart illustrates the average monthly humidity levels in Marietta, 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 Marietta is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%78%78%81%78%73%66%65%72%82%87%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Marietta

In Marietta in October, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Marietta.

Maximum UV Index Levels in Marietta for October

The chart shows the monthly maximum UV Index (UVI) for Marietta 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 Marietta typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111110864
Data source: Marietta 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 Marietta Compares to Other Months

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

This table compares monthly weather conditions in Marietta, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (44°F)61 mm (2.4 inches)80%moderate
February Weather8°C (46°F)84 mm (3.3 inches)79%high
March Weather14°C (58°F)95 mm (3.7 inches)78%very high
April Weather17°C (63°F)96 mm (3.8 inches)78%very high
May Weather22°C (73°F)122 mm (4.8 inches)81%extreme
June Weather27°C (80°F)103 mm (4.1 inches)78%extreme
July Weather29°C (84°F)48 mm (1.9 inches)73%extreme
August Weather28°C (83°F)94 mm (3.7 inches)66%extreme
September Weather25°C (77°F)102 mm (4.0 inches)65%very high
October Weather18°C (65°F)138 mm (5.4 inches)72%very high
November Weather12°C (54°F)50 mm (2.0 inches)82%high
December Weather9°C (49°F)57 mm (2.2 inches)87%moderate

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