Last updated: March 2, 2024
The weather in Phoenix, United States, during May is characterized by an average temperature of 14°C (57°F). Highs can soar to 29°C (85°F), while lows may dip to 2°C (36°F). Typically, the humidity level in Phoenix throughout May hovers around 82%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In May, Phoenix averages 119 mm (4.7 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 14 hours 42 minutes of daylight, with the sun shining for approximately 8 hours 51 minutes each day. Additionally, there is a 43% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In May, the UV Index in Phoenix reaches a maximum of 9, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 15 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 | 3 | 6 | 7 | 9 | 9 | 9 | 7 | 5 | 3 | 2 | 1 |
| Exposure | Low | Moderate | High | VeryHigh | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 25 min | 30 min | 45 min | ||||||