Tucson Weather in September
September in Tucson typically sees daytime highs of 34°C (93°F) and nighttime lows of 21°C (70°F). Expect some rainfall during the month.
Rainfall in Tucson in September
Analyzing past climate data, one can expect approximately 7 days of rain, averaging 45 mm (1.8 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Tucson in September
Daytime highs in Tucson in September reach 34°C (93°F), with nights around 21°C (70°F). For most visitors, the main thing to prepare for is the heat during the day. Nights remain mild at 21°C (70°F), making evenings a pleasant time to be outdoors.
Sunshine in Tucson in September
With approximately 316 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.
Wind Speed in Tucson in September
Average wind speeds reach 3 m/s (6 knots) in September, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, April and November typically offer the best weather for Tucson.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Tucson's climate page.
Tucson Temperature in September
Min Temperature
21°C (70°F)
Max Temperature
34°C (93°F)
Chance of Rain
23%
Precipitation
45 mm (1.8 in)
Rainy days
7 days
Humidity
42%
Windspeed
3 m/s (6 knots)
Sunshine
316 hours
Percentage Sunshine
85%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Tucson typically stay consistent throughout September, with daily highs averaging around 34°C (93°F). Nights are warm, with lows typically ranging from 19°C (66°F) to 23°C (73°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Tucson in September
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.
Tucson historical weather extremes in September
Our historical data for Tucson spans 1976 to 2025, revealing these weather extremes.
- The warmest day in September was on September 4, 2020, with a maximum of 43°C (109°F).
- On September 24, 2003, Tucson saw its coldest September day with temperatures maxing out at 22°C (72°F).
- Nighttime temperatures dropped to 12°C (54°F) on September 23, 1988, marking the coldest September night on record.
Best Places in the United States of America in September
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 September →
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What to Wear in Tucson in September
Pack for serious heat in Tucson in September. Prioritize clothing that breathes and doesn't cling or stick. Lightweight cotton, linen, and moisture-wicking fabrics are ideal. A wide hat provides welcome shade. Wet weather is likely, so pack waterproof gear for multiple rainy days. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Tucson in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Tucson's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Tucson climate overview or explore weather in the United States of America.
