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July Weather in Marietta, United States

Last updated: June 24, 2025

In July, the average temperature in Marietta, United States is a pleasant 25°C (76°F). Expect minimums as cool as 14°C (57°F) and maximums reaching up to 35°C (96°F). During this month, you'll likely encounter 122 mm (4.8 in) of precipitation spread across 13 days, all while enjoying an average humidity of 82%.

July Temperature in Marietta

In July in Marietta, the average temperature is 25°C (76°F). Maximum temperatures can reach 35°C (96°F), while minimums can drop as low as 14°C (57°F). This pleasant climate makes Marietta an ideal destination for travelers seeking a comfortable getaway during this time.

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

The chart illustrates July 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, July typically has an average temperature of 25°C (76°F), with highs reaching up to 35°C (96°F) and lows dropping to around 14°C (57°F).
JanFebMarAprMayJunJulAugSepOctNovDec333745546472767470594438
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.

July Precipitation in Marietta

In Marietta in July, the precipitation amount is 122 mm (4.8 in) recorded over a span of 13 days.

July Precipitation Trends in Marietta

The chart displays monthly precipitation patterns in Marietta, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Marietta, July typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec9112111614614316412311010711686115
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Marietta

In Marietta in July humidity is 82%. With an average temperature of 25°C (76°F), this humidity feels like a warm, heavy blanket enveloping you, making travel feel sticky and exhausting as you navigate through the air that clings to your skin.

July Average Humidity in Marietta

This chart illustrates the average monthly humidity levels in Marietta, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Marietta is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%88%87%82%84%82%73%74%81%89%86%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Marietta

In Marietta in July, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Marietta.

Maximum UV Index Levels in Marietta for July

The chart shows the monthly maximum UV Index (UVI) for Marietta in July, 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 July, the maximum UV index in Marietta typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098643
Data source: Marietta July 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 July 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 July’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 July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)91 mm (3.6 inches)88%moderate
February Weather3°C (38°F)121 mm (4.8 inches)88%moderate
March Weather7°C (45°F)116 mm (4.6 inches)88%high
April Weather12°C (54°F)146 mm (5.7 inches)86%very high
May Weather18°C (65°F)143 mm (5.6 inches)82%very high
June Weather22°C (72°F)164 mm (6.5 inches)84%very high
July Weather25°C (76°F)122 mm (4.8 inches)82%very high
August Weather23°C (74°F)110 mm (4.3 inches)73%very high
September Weather21°C (70°F)107 mm (4.2 inches)73%very high
October Weather15°C (59°F)116 mm (4.6 inches)81%high
November Weather7°C (44°F)86 mm (3.4 inches)89%moderate
December Weather3°C (39°F)115 mm (4.5 inches)86%moderate

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