Get the app
Best time to visit · Arizona, United States
For the most comfortable weather in Downtown Tucson, aim for November – April. November tops our comfort score at 100/100, with highs around 75°F (24°C) and 0.6 in (14 mm) of rain. October is a good shoulder-season month. The toughest month is July, mainly because of heat.
Highs run from 64°F to 103°F across the year, and the yearly total is about 12.7 in (322 mm) of rain.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 65°F19°C | 68°F20°C | 76°F24°C | 83°F29°C | 92°F34°C | 103°F39°C | 99°F37°C | 98°F37°C | 95°F35°C | 86°F30°C | 75°F24°C | 64°F18°C |
| Avg low | 40°F5°C | 42°F6°C | 47°F9°C | 53°F12°C | 61°F16°C | 72°F22°C | 76°F25°C | 75°F24°C | 70°F21°C | 59°F15°C | 49°F9°C | 40°F4°C |
| Rain | 0.9 in24 mm | 0.8 in21 mm | 0.6 in14 mm | 0.3 in8 mm | 0.2 in4 mm | 0.3 in8 mm | 3.3 in83 mm | 2.5 in64 mm | 1.6 in40 mm | 0.6 in15 mm | 0.6 in14 mm | 1.1 in27 mm |
| Humidity | 46% | 44% | 37% | 28% | 22% | 19% | 42% | 47% | 43% | 37% | 39% | 46% |
| Cloud | 37% | 39% | 34% | 27% | 22% | 21% | 56% | 48% | 30% | 23% | 30% | 39% |
| Comfort | 98 | 97 | 99 | 94 | 74 | 60 | 46 | 53 | 69 | 89 | 100 | 97 |
Source: NASA POWER (public domain), 2001–2025 monthly averages on a ~50 km satellite and reanalysis grid, so coasts and valleys can differ from what's shown. Temperatures were adjusted from the grid cell's ~962 m (3,156 ft) to Downtown Tucson's ~725 m (2,379 ft) elevation using the standard lapse rate of 6.5°C per 1,000 m. Precipitation includes snow as melted water; daylight is calculated from latitude. Check a forecast before you go.
The coldest season, with highs of 64–68°F (18–20°C) and lows down to 40°F (4°C). About 2.8 in (72 mm) of rain falls across these months, 22% of the year's total. Comfort peaks here: December – February rank with the year's best, and the season averages 97/100.
Temperatures climb through the season, from 76°F highs in March to 92°F by May. It's the driest season, with only about 1.0 in (26 mm) of rain, 8% of the year's total. Lows bottom out around 47°F (9°C). March & April are among the best-scoring months (season average 89/100).
The warmest stretch of the year, with highs of 98–103°F (37–39°C). It's the wettest season, with about 6.1 in (155 mm) of rain, 48% of the year's total. Lows bottom out around 72°F (22°C). Comfort scores bottom out in July; the season averages 53/100.
Temperatures slide from 95°F highs in September to 75°F by November. About 2.7 in (69 mm) of rain falls across these months, 21% of the year's total. Lows bottom out around 49°F (9°C). November is among the best-scoring months (season average 86/100).
By comfort score: 7 Great, 3 Good and 2 Fair. Great months: October – April. Tap a month for its own guide.
For the most comfortable weather in Downtown Tucson, aim for November – April. November tops our comfort score at 100/100, with highs around 75°F (24°C) and 0.6 in (14 mm) of rain. October is a good shoulder-season month. The toughest month is July, mainly because of heat.
July is the wettest month, averaging about 3.3 in (83 mm) of rain. May is the driest, with about 0.2 in (4 mm). The yearly total is around 12.7 in (322 mm).
December is the coldest, with average lows of 40°F (4°C) and highs of 64°F (18°C). The warmest is June, with average highs of 103°F (39°C).
Not very: summer (June – August) humidity averages 36%, and highs peak around 103°F (39°C), so heat matters more than mugginess.
Not on average: even in December, the coldest month, lows average 40°F (4°C). Individual cold snaps can still dip lower.
Send the group one link: vote on dates, build the plan together and split costs as you go.
