Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
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.
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.
Pick a month to see the average temperature, rainfall and sunshine in Tucson - and find the best time to visit.
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).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
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.
Our historical data for Tucson spans 1976 to 2026, revealing these weather extremes.
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 is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
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.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Tucson climate overview or explore weather in the United States of America.
Where to go in May - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
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