Last updated: June 24, 2025
In August, the average temperature in Vista Santa Rosa, United States reaches a warm 32°C (89°F), with minimums dipping to 18°C (65°F) and soaring to maximums of 43°C (111°F). Expect a light precipitation of 7 mm (0.3 in) over just 1 day, and enjoy the relatively low humidity at 42%. Whether you're soaking up the sun or seeking a cool retreat, Vista Santa Rosa offers a delightful climate this month!
In August in Vista Santa Rosa, the average temperature is 32°C (89°F). Maximums can reach 43°C (111°F), and minimums can be as low as 18°C (65°F). Travelers should prepare for hot days and cooler evenings, making lightweight clothing ideal for daytime and a light jacket suitable for night outings.
In Vista Santa Rosa in August, the precipitation amount is 7 mm (0.3 in) over the course of 1 day.
In Vista Santa Rosa in August, humidity is 42%. With an average temperature of 32°C (89°F), this humidity feels like a warm, sticky embrace for traveling, making you feel slightly lethargic and in need of frequent hydration as you explore the vibrant surroundings.
In Vista Santa Rosa in August, 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 Vista Santa Rosa.
UV Risk Categories
Weather in Vista Santa Rosa varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Vista Santa Rosa, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 12°C (53°F) | 28 mm (1.1 inches) | 72% | moderate |
| February Weather | 13°C (55°F) | 28 mm (1.1 inches) | 77% | high |
| March Weather | 15°C (60°F) | 18 mm (0.7 inches) | 67% | very high |
| April Weather | 20°C (68°F) | 11 mm (0.4 inches) | 56% | extreme |
| May Weather | 23°C (73°F) | 2 mm (0.1 inches) | 46% | extreme |
| June Weather | 29°C (84°F) | 1 mm (0.0 inches) | 48% | extreme |
| July Weather | 32°C (89°F) | 10 mm (0.4 inches) | 46% | extreme |
| August Weather | 32°C (89°F) | 7 mm (0.3 inches) | 42% | extreme |
| September Weather | 28°C (83°F) | 4 mm (0.2 inches) | 52% | extreme |
| October Weather | 21°C (71°F) | 6 mm (0.2 inches) | 58% | very high |
| November Weather | 16°C (61°F) | 10 mm (0.4 inches) | 66% | moderate |
| December Weather | 11°C (52°F) | 27 mm (1.1 inches) | 74% | moderate |