Last updated: June 24, 2025
In May, the average temperature in Vista Santa Rosa, United States hovers around 23°C (73°F). While you might enjoy pleasant days, be prepared for a range that dips to a cool 7°C (45°F) and can soar up to a sizzling 39°C (103°F). Expect minimal rain with just 2 mm (0.1 in) of precipitation over 0 days, complemented by an average humidity of 46%. Whether you're exploring or lounging, the climate is sure to offer a comfortable experience!
In May in Vista Santa Rosa, the average temperature is 23°C (73°F), with maximums soaring to 39°C (103°F) and minimums dipping as low as 7°C (45°F). Be prepared for a wide range of weather conditions while traveling, so pack accordingly!
In Vista Santa Rosa in May, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.
In Vista Santa Rosa in May, humidity is 46%. With an average temperature of 23°C (73°F), this humidity feels like a warm, inviting embrace, making it pleasant for traveling as the air is comfortably moist without being too sticky or overwhelming.
In Vista Santa Rosa in May, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, 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 May’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 |