Tucson weather in May
Temperature, rain and sunshine in May: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in May
Good
Best time to visit: November – April
What is the weather like in Tucson in May?
In May, Tucson is hot: daytime highs average 33 °C, and nights cool down to about 18 °C. With around 11 hours of sunshine a day, there is plenty of sun. It hardly ever rains. On about 25 days the thermometer climbs to 30 °C or more. All in all, May is a good month for a holiday in Tucson.
May compared
How the weather changes from April to June. Tap a month to open it.
More details for May
- Daylight
- 13 h 47 min05:26 – 19:13
- UV index
- 11 · extremeclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 20 km/haverage daily peakAll months
- Cloud cover
- 17 %on averageAll months
- Hot days
- 25 days30 °C or moreAll months
- Time zone
- UTC−7America/Phoenix
How the score comes together
- Temperatureweight 50 %26 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in May
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
Tucson in May: quick answers
Is Tucson hot in May?
Yes. In May, Tucson is hot: daytime highs average 33 °C and nights stay around 18 °C. On about 25 days the thermometer climbs to 30 °C or more.
Does it rain much in Tucson in May?
It hardly ever rains.
Tucson month by month
The whole year in TucsonAll destinations: USAWhere to go in May
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences