nomadseason

May Weather in Marietta, United States

Last updated: June 24, 2025

In May, the average temperature in Marietta, United States is a pleasant 22°C (73°F). However, temperatures can fluctuate significantly, with minimums dipping to 7°C (45°F) and maximums soaring to 35°C (96°F). Expect 122 mm (4.8 in) of precipitation over 12 days, accompanied by an average humidity of 81%, making for a uniquely vibrant climate.

May Temperature in Marietta

In May in Marietta, the average temperature is 22°C (73°F). Maximums can reach 35°C (96°F), while minimums can dip as low as 7°C (45°F). This makes Marietta an ideal destination for travelers seeking a mix of warm days and cooler evenings.

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

The chart illustrates May 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, May typically has an average temperature of 22°C (73°F), with highs reaching up to 35°C (96°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec434657637280848377655448
Data source: Temperature data for Marietta generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Marietta

In Marietta in May, the precipitation amount is 122 mm (4.8 in) over a span of 12 days.

May Precipitation Trends in Marietta

The chart displays monthly precipitation patterns in Marietta, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Marietta, May typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec6184959612210348941021385157
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Marietta

In Marietta in May, humidity is 81%. With an average temperature of 22°C (73°F), this humidity feels like a warm, sticky embrace, making outdoor activities a bit more challenging but also invigorating, as you experience the vibrant atmosphere of the surroundings.

May Average Humidity in Marietta

This chart illustrates the average monthly humidity levels in Marietta, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Marietta is approximately 81%, 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 May generated using information from the Copernicus Climate Change Service.

May UV Index in Marietta

In Marietta in May, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Marietta.

Maximum UV Index Levels in Marietta for May

The chart shows the monthly maximum UV Index (UVI) for Marietta in May, 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 May, the maximum UV index in Marietta typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111110864
Data source: Marietta May 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 May 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 May’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 May’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

Compare Marietta's Climate with Cities Worldwide