Tucson in September
In September, Tucson averages 34°C (94°F) during the day and 22°C (71°F) at night, with around 6 days of rain (58 mm total).
Off-peakConditions are very hot — early-morning and evening sightseeing recommended. Occasional showers are likely but won't dominate.
It's peak hurricane season in Tucson during September. Travel is possible but expect storm risk, possible flight disruption, and generally lower travel insurance coverage.
How September compares to the rest of the year in Tucson
September is in the middle of the year for warmth in Tucson (4th of 12) and one of the wettest months (3rd of 12). Daytime temperature runs 6°C above the annual average (29°C). September runs 2°C cooler than August (36°C) and cools 4°C in October (30°C).
September sunrise & sunset in Tucson
Times shown for Tucson local time (America/Phoenix), calculated for the 15th of September. They shift by a few minutes day to day across the month.
Photography light in Tucson — September
Golden-hour and blue-hour windows for the 15th of September, in Tucson's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Tucson in September
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (Off-peak) and Tucson's popularity.
Crowds & pricing — September in Tucson
This is off-peak for Tucson — the lowest prices of the year and the fewest crowds, but with real trade-offs: some restaurants, hotels, and beach businesses may close for the season; weather conditions can make outdoor activities unpredictable; and a handful of seasonal sights run reduced hours or close entirely. Great if you prefer a quiet local rhythm and don't mind the climate giving you reasons to choose indoor activities.
Why this tier: peak hazard season (1 active)
Sun & mosquito risk — September in Tucson
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Tucson in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 19°C / 65°F | 5°C / 41°F | 34 mm | 4 | — |
| February | 21°C / 70°F | 6°C / 43°F | 24 mm | 4 | — |
| March | 25°C / 77°F | 9°C / 49°F | 16 mm | 3 | — |
| April | 29°C / 85°F | 13°C / 56°F | 3 mm | 1 | — |
| May | 33°C / 91°F | 17°C / 63°F | 3 mm | 1 | — |
| June | 38°C / 101°F | 23°C / 74°F | 8 mm | 1 | — |
| July | 37°C / 99°F | 26°C / 78°F | 57 mm | 8 | — |
| August | 36°C / 98°F | 24°C / 76°F | 48 mm | 8 | — |
| September | 34°C / 94°F | 22°C / 71°F | 58 mm | 6 | — |
| October | 30°C / 86°F | 16°C / 61°F | 21 mm | 3 | — |
| November | 24°C / 76°F | 10°C / 50°F | 17 mm | 2 | — |
| December | 19°C / 65°F | 6°C / 42°F | 39 mm | 4 | — |
Other cities with similar September weather
🌍 See the full ranked list of climate twins for Tucson in September →
Frequently asked questions
How hot is Tucson in September?
In September, Tucson averages a high of 34°C (94°F) and a low of 22°C (71°F) — generally hot.
Does it rain a lot in Tucson in September?
September sees occasional rain in Tucson, with about 6 rainy days on average.
Is September a good time to visit Tucson?
September is hot. It suits travelers who are comfortable with hot weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Tucson in September?
Pack lightweight, breathable clothing, sunglasses and sunscreen. See the full September packing list for Tucson for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.