July Weather in Gretna

Last updated: March 2, 2024

The weather in Gretna, United States, during July is characterized by an average temperature of 28°C (83°F). Highs can soar to 34°C (93°F), while lows may dip to 24°C (76°F). Typically, the humidity level in Gretna throughout July hovers around 74%.

24°C (76°F)

Minimum temperature

28°C (83°F)

Average temperature

34°C (93°F)

Maximum temperature

74%

Humidity

Precipitation and Sunshine hours

In July, Gretna averages 219 mm (8.6 inches) of rainfall, typically over the course of 22 rainy days. The month enjoys an average of 13 hours 49 minutes of daylight, with the sun shining for approximately 9 hours 54 minutes each day. Additionally, there is a 26% probability of sunny days during this period.

219 mm (8.6 inches)

Precipitation

22 rainy days

Rainy days

9 hours 54 minutes

Sunshine hours

26%

Chance of sun

UV Index

In July, the UV Index in Gretna reaches a maximum of 12, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 10 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 2 4 6 9 11 12 11 8 6 3 2 1
Exposure Low Moderate High VeryHigh Extreme VeryHigh High Moderate Low
Time to burn 45 min 30 min 25 min 15 min 10 min 15 min 25 min 30 min 45 min

Compare Gretna's Climate with Cities Worldwide