Last updated: June 24, 2025
In August, the average temperature in Jacksonville, United States is a pleasant 21°C (71°F). However, temperatures can vary significantly, with a minimum of 7°C (45°F) and soaring up to 39°C (102°F). Expect some light rain, as the total precipitation amounts to 8 mm (0.3 in) over 1 day, while the humidity hovers around 67%, creating a comfortable atmosphere.
In August in Jacksonville, the average temperature is 21°C (71°F), with maximums reaching up to 39°C (102°F) and minimums dipping as low as 7°C (45°F). This diverse range of temperatures makes Jacksonville an ideal destination for travelers seeking both warm days and cooler evenings, perfect for exploring and enjoying outdoor activities.
In Jacksonville in August, the precipitation amount is 8 mm (0.3 in) over the course of 1 day.
In Jacksonville in August humidity is 67%. With an average temperature of 21°C (71°F), this humidity feels like a warm blanket wrapping around you, making traveling both refreshing and a bit stifling at times, as the air clings to your skin and encourages slow, leisurely exploration.
In Jacksonville in August, 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 Jacksonville.
UV Risk Categories
Weather in Jacksonville varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Jacksonville, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (40°F) | 131 mm (5.2 inches) | 84% | moderate |
| February Weather | 4°C (40°F) | 142 mm (5.6 inches) | 85% | moderate |
| March Weather | 6°C (44°F) | 117 mm (4.6 inches) | 86% | high |
| April Weather | 10°C (49°F) | 94 mm (3.7 inches) | 83% | very high |
| May Weather | 13°C (56°F) | 64 mm (2.5 inches) | 83% | very high |
| June Weather | 18°C (64°F) | 31 mm (1.2 inches) | 83% | extreme |
| July Weather | 22°C (71°F) | 3 mm (0.1 inches) | 78% | very high |
| August Weather | 21°C (71°F) | 8 mm (0.3 inches) | 67% | very high |
| September Weather | 17°C (63°F) | 42 mm (1.7 inches) | 66% | very high |
| October Weather | 11°C (52°F) | 45 mm (1.8 inches) | 77% | high |
| November Weather | 7°C (44°F) | 90 mm (3.5 inches) | 87% | moderate |
| December Weather | 3°C (38°F) | 107 mm (4.2 inches) | 87% | low |