Phoenix (AZ) Weather and Climate: A Comprehensive Guide
Because Phoenix is located in the Sonoran Desert it experiences a warm desert climate. This means extremely hot summers and warm winters. With a total number of 3900 hours of sunshine it is super sunny and one of most sunny cities in the world.
Besides being very warm and sunny, Phoenix is also a dry city. On an annual basis there is an average of around 200 mm of rain. The months May and June are the driest and the best time to visit. It hardly rains during these months.
Average maximum day and minimum night temperature
Depending on the time of the year, temperatures range from very hot to pleasant in Phoenix. On average, daytime temperatures range from a very hot 41°C in July to a pleasant 19°C in January.
Nighttime temperatures can drop, with average lows reaching 6°C in January. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Phoenix has a dry climate with very low precipitation, averaging 174 mm of rainfall annually. The seasons in Phoenix, bring significant changes in precipitation. The wettest month, August, receives moderate rainfall, with an average of 32 mm of precipitation. This rainfall is distributed across 6 rainy days. In contrast, the driest month, June, experiences much less rainfall, totaling 1.3 mm over 0 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Phoenix Precipitation page.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
In Phoenix, summer days are longer and more sunny, with daily sunshine hours peaking at 13.6 hours in June. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 8.1 hours per average day. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average humidity
The relative humidity is low throughout the year in Phoenix.
The city experiences its highest humidity in December, reaching 51%. In June, the humidity drops to its lowest level at 19%. Explore our detailed page on humidity levels for further details.
Relative humidity over the year
almost clear and no rain partly cloudy and no rain partly cloudy and no rainForecast for Phoenix (AZ)
3 m/s
2 m/s
2 m/s
The best time of year to visit Phoenix in the United States of America
During the months of February and November you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
July has an average maximum temperature of 41°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 19°C.
August tops the wettest month list with 32 mm of rainfall.
June is the driest month with 1 mm of precipitation.
June is the sunniest month with an average of 407 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
