Phoenix (AZ) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Phoenix.
Climate overview of Phoenix
Besides being very warm and sunny, Phoenix is also a dry city. On an annual basis there is an average of around 200 mm (7.9 in) of rain. The months May and June are the driest and the best time to visit. It hardly rains during these months.
Phoenix Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Phoenix — and find the best time to visit.
Monthly Temperature in Phoenix
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 (106°F) in July to a pleasant 19°C (66°F) in January.
Nighttime temperatures range from 28°C (82°F) in July to 6°C (43°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Phoenix
Phoenix has a dry climate with very low precipitation, averaging 174 mm (6.9 in) 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 (1.3 in) of precipitation. This rainfall is distributed across 6 rainy days.
In contrast, the driest month, June, experiences much less rainfall, totaling 1.3 mm (0.1 in) 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 Hours in Phoenix
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
Humidity in Phoenix by Month
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%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Phoenix
The consistently dry weather means you can step outside without worrying about rain, though remember to carry water and sun protection. Need help choosing your next travel destination? We offer a specialized tool that matches you with locations based on your weather preferences. Explore destinations that suit your climate preferences.
Frequently asked questions about the climate in Phoenix
What is the best time to visit Phoenix?
January, February, March, November and December typically offer the most optimal weather in Phoenix. In contrast, May, June, July, August and September tend to have less optimal conditions. Phoenix has a distinct dry season from January to December.
What temperatures can I expect in Phoenix?
Daytime highs range from 19°C (66°F) in January to 41°C (106°F) in July. Nighttime lows range from 6°C (43°F) to 28°C (82°F). Temperatures vary considerably through the year.
How much rain does Phoenix get?
Annual rainfall is around 174 mm (6.9 in). August is the wettest month with 32 mm (1.3 in), while June is the driest with 1.3 mm (0.1 in).
How sunny is Phoenix?
Phoenix receives around 3,867 hours of sunshine per year. June is the sunniest month with 407 hours, while December is the cloudiest with just 244 hours. Overall, Phoenix enjoys abundant sunshine.
Phoenix 3-Day Forecast
Phoenix (AZ) 3-Day Forecast
Phoenix on the map
Phoenix is highlighted — select any city to see its climate.
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