Surprise (AZ) Weather and Climate: A Comprehensive Guide
The climate in Surprise is marked by big temperature swings throughout the year.
Temperatures range from very hot during the warmest months
to mild in the cooler months.
It experiences desert-like conditions in terms of precipitation, with almost no rainfall.
Now, let’s explore all the climate details to give you a full picture.
Average maximum day and minimum night temperature
In Surprise, temperatures differ significantly between summer and winter months. Typically, average maximum daytime temperatures range from a very hot 41°C in July to a moderate 18°C in the coolest month, December.
Nights are cooler, with lows often dropping to around 5°C during the colder months. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Surprise sits in an arid zone with minimal moisture, averaging 166 mm of rainfall per year. The climate in Surprise shows significant variation throughout the year. Expect low rainfall in August, with an average of 28 mm of precipitation over 6 rainy days. In contrast, June offers drier and sunnier days, with around 0.5 mm of rainfall over 0 rainy days. For more details, please visit our Surprise 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
For those who appreciate different seasons, Surprise serves as an ideal destination. Expect longer, more sun-filled days in June with an average of 13.6 hours of sunshine daily, and embrace the darker days in December, offering only 8.1 hours of daily sunlight. 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 Surprise.
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 broken clouds and no rain clear and no rainForecast for Surprise (AZ)
1 m/s
1 m/s
1 m/s
The best time of year to visit Surprise in the United States of America
During the months of February, March 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 December with an average maximum temperature of 18°C.
August tops the wettest month list with 28 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.
