Tucson (AZ) Temperature by Month
The average annual maximum temperature in Tucson, Arizona, United States of America is 29°C (84°F), with daytime highs ranging from 18°C (64°F) in January to 39°C (102°F) in June. This page covers monthly averages, day-night differences, and how Tucson compares to cities worldwide.
Tucson Monthly Temperatures
Depending on the time of the year, temperatures range from very hot to pleasant in Tucson. Nighttime lows follow the same pattern, ranging from 22°C (72°F) to 4°C (39°F).
The chart below illustrates the average maximum day and minimum night temperatures in Tucson by month:
Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating. June, the warmest month of the year, receives 397 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in July
Historical Tucson Temperatures: 1976-2026
Browse day-by-day temperature records for Tucson spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Tucson 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.
very warm
warm
pleasant
moderate
cold
very cold
Tucson vs World: Temperature Compared
Tucson's average annual maximum temperature is 29°C (84°F). To put that in context, here's how it compares to a few well-known destinations:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.
Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
What Does the Temperature Feel Like in Tucson?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Tucson, January is the coolest month, with average highs of 19°C (66°F) and humidity around 48% — considered moderate. In June, the warmest month, temperatures average 39°C (102°F) with 21% humidity — conditions that feel low. For a full picture, see our humidity page.
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.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Tucson this rarely lasts long on the ground.
For more on Tucson's weather — including monthly rainfall, sunshine hours, and humidity — visit our Tucson climate page.
