Tucson Weather in May
May in Tucson typically sees daytime highs of 32°C (90°F) and nighttime lows of 16°C (61°F). With the least rainfall of the year, it's a reliably dry month.
Rainfall in Tucson in May
Take advantage of the dry conditions this month, with minimal rain expected. Historically, the month has about a single day of rain, averaging 2.1 mm (0.1 in) in total. If rain does fall, it tends to be very light and barely worth getting out an umbrella for.
Temperature in Tucson in May
May is a perfect month in Tucson, with 32°C (90°F) during the day and 16°C (61°F) at night. It's usually most comfortable outside during the morning and later in the day. With lows of 16°C (61°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Tucson in May
There are approximately 401 hours of sunshine this month, resulting in mostly clear days.
Wind Speed in Tucson in May
Average wind speeds reach 3 m/s (6 knots) in May, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.If you prefer enjoying temperate temperatures and rain-free days, January, February, March, April and November typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Tucson's climate page.
Tucson Temperature in May
Min Temperature
16°C (61°F)
Max Temperature
32°C (90°F)
Chance of Rain
3%
Precipitation
2.1 mm (0.1 in)
Rainy days
a single day
Humidity
22%
Windspeed
3 m/s (6 knots)
Sunshine
401 hours
Percentage Sunshine
94%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Tucson typically rise from around 31°C (88°F) at the start of May to approximately 35°C (95°F) by the end. Nights are pleasant, with lows typically ranging from 15°C (59°F) to 19°C (66°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Tucson in May
Browse day-by-day weather records for Tucson spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Tucson historical weather extremes in May
Our historical data for Tucson spans 1976 to 2026, revealing these weather extremes.
- The warmest day in May was on May 22, 2005, with a maximum of 42°C (108°F).
- The lowest daytime temperature in May was 18°C (64°F), recorded on May 7, 1995.
- Nighttime temperatures dropped to 4°C (39°F) on May 2, 1988, marking the coldest May night on record.
Best Places in the United States of America in May
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in May →
perfect weather
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What to Wear in Tucson in May
Warm but pleasant conditions in Tucson in May. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Dry conditions mean you won't need to worry about rain protection. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Tucson in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Tucson's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Tucson climate overview or explore weather in the United States of America.
