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Tucson Weather by Month
Average temperatures, rainfall and humidity for Tucson, United States, month by month, built from OpenWeather's historical records. Use it to see what a typical Tucson month looks like before you travel — then check the live Tucson forecast for the days ahead.
Warmest month
June
39°C average high
Coolest month
January
5°C average low
Wettest month
August
48 mm of rain
Driest month
May
4 mm of rain
Average temperature and rainfall in Tucson by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 19°C | 5°C | -9°C / 28°C | 21 mm | 47% | 10 km/h |
| February | 22°C | 7°C | -6°C / 32°C | 13 mm | 41% | 11 km/h |
| March | 25°C | 10°C | -1°C / 39°C | 9 mm | 34% | 12 km/h |
| April | 29°C | 13°C | 0°C / 38°C | 10 mm | 23% | 13 km/h |
| May | 33°C | 16°C | 2°C / 40°C | 4 mm | 21% | 12 km/h |
| June | 39°C | 22°C | 12°C / 45°C | 8 mm | 21% | 12 km/h |
| July | 38°C | 25°C | 17°C / 44°C | 35 mm | 41% | 12 km/h |
| August | 37°C | 24°C | 14°C / 45°C | 48 mm | 44% | 11 km/h |
| September | 35°C | 21°C | 3°C / 42°C | 40 mm | 42% | 11 km/h |
| October | 30°C | 15°C | 0°C / 40°C | 18 mm | 37% | 10 km/h |
| November | 25°C | 10°C | -5°C / 33°C | 9 mm | 38% | 11 km/h |
| December | 20°C | 6°C | -8°C / 30°C | 19 mm | 48% | 10 km/h |
Best time to visit Tucson
The most comfortable time to visit Tucson is generally February to March and November, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around August, totalling about 234 mm a year.
Travellers who prefer heat should aim for June, when highs average 39°C. August is the month to avoid if rain would spoil your plans — it averages 48 mm, roughly 11× the rainfall of May.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Tucson forecast for what is happening now.