Mesa (AZ) Temperature by Month
The average annual maximum temperature in Mesa, Arizona, United States of America is 30°C (86°F), with daytime highs ranging from 18°C (64°F) in December to 41°C (106°F) in July. This page covers monthly averages, day-night differences, and how Mesa compares to cities worldwide.
Mesa Monthly Temperatures
The weather in Mesa experiences significant differences between warm and cold seasons, with big shifts in temperature. At night, minimum temperatures range from 27°C (81°F) in July to 5°C (41°F) in December.
The chart below illustrates the average maximum day and minimum night temperatures in Mesa by month:
The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM, when the sun's heating effect is strongest. July, the warmest month, gets 378 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Mesa vs the United States of America
The map below shows the annual temperature across the United States of America. You can also select individual months if you want to compare a specific time of year.
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Mesa vs World: Temperature Compared
Mesa's average annual maximum temperature is 30°C (86°F). To put that in context, here's how it compares to a few well-known destinations:
Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation — summers are often cool and foggy, winters mild.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.
Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.
For more on Mesa's weather — including monthly rainfall, sunshine hours, and humidity — visit our Mesa climate page.
