Mianyang Weather in September
September in Mianyang sees daytime temperatures around 27°C (81°F) and lows of 20°C (68°F) at night. With around 159 mm (6.3 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Mianyang in September
Historically, approximately 16 days this month are expected to have rain, averaging 159 mm (6.3 in). Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.
Temperature in Mianyang in September
September in Mianyang brings typical temperatures with highs around 27°C (81°F) and lows of 20°C (68°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. At 20°C (68°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.If your ideal day consists of dry skies and pleasant temperatures, April, May and October typically offer the best circumstances for Mianyang.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit China, check out our Mianyang's climate page.
Mianyang Temperature in September
Min Temperature
20°C (68°F)
Max Temperature
27°C (81°F)
Chance of Rain
54%
Precipitation
159 mm (6.3 in)
Rainy days
16 days
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Mianyang typically drop from around 28°C (82°F) at the start of September to approximately 24°C (75°F) by the end. Nights are pleasant, with lows typically ranging from 18°C (64°F) to 22°C (72°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 Mianyang in September
Browse day-by-day weather records for Mianyang spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Mianyang historical weather extremes in September
The extremes listed below come from historical weather data collected in Mianyang from 1976 through 2025.
- The warmest day in September was on September 2, 2024, with a maximum of 38°C (100°F).
- The coldest September day was on September 28, 1988, with a maximum of 15°C (59°F).
- Mianyang registered its coldest September night on September 29, 1990, with temperatures dropping to 12°C (54°F).
Best Places in China in September
Find out more about the weather in China and which places have the best travel conditions in this month. See all of China in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Mianyang in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything!What To Do in Mianyang 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 China, check out our Mianyang's climate page.
See the full Mianyang climate overview or explore weather in China.
