Phoenix Weather in May
What's the weather like in Phoenix (Arizona) in May 2025?
The climate in Phoenix during May can be summarized as hot and very dry.
May is in the spring in Phoenix and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 34°C (94°F), whilst at night 17°C (62°F) is normal.
| Daytime temperature | 34.3°C 93.7°F |
|---|---|
| Nightly temperature | 16.5°C 61.7°F |
| Average temperature | 25.4°C 77.7°F |
| Daily sunshine | 13.7 hrs |
| Avg rainfall | 3 mm 0.1 ins |
| Rainy days | 1 days |
| Sea temperature | 17.3°C 63.2°F |
| Humidity | 23% |
| Windspeed | 13.7kph 9 mph |
On average May is the 2nd driest month of the year in Phoenix with around 3mm 0.1 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 13.7 hours of sunshine per day.
May temperatures in Phoenix
May rainfall
May hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Phoenix in May 2025.
Other monthly averages
Phoenix weather stats
| Hottest month: | July | 40.9°C 105.6°F |
|---|---|---|
| Driest month: | June | 2mm 0.1ins |
| Sunniest month: | June | 14.5hrs |
| Coldest month: | January | 18.7°C 65.7°F |
| Wettest month: | August | 29mm 1.1ins |
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