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%.
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Average temperature
Maximum temperature
Humidity
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.
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Chance of sun
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.
| 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 | ||||