Mianyang climate
Mianyang (Sichuan, China) has a monsoon-influenced humid subtropical climate (Köppen Cwa). The average temperature over the year is 18 °C64 °F, and about 895 mm35 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Mianyang climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 1051 | 236 | 643 | 80.3 |
| Feb | 1457 | 440 | 948 | 100.4 |
| Mar | 1966 | 948 | 1457 | 261.0 |
| Apr | 2577 | 1457 | 2067 | 491.9 |
| May | 2984 | 1865 | 2374 | 963.8 |
| Jun | 3289 | 2271 | 2780 | 1104.3 |
| Jul | 3290 | 2475 | 2883 | 2208.7 |
| Aug | 3188 | 2374 | 2781 | 1706.7 |
| Sep | 2781 | 1967 | 2374 | 1315.2 |
| Oct | 2272 | 1458 | 1865 | 522.1 |
| Nov | 1762 | 948 | 1355 | 160.6 |
| Dec | 1153 | 338 | 745 | 70.3 |
| Year | 3290 | 236 | 1864 | 89535 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 70% | 78% | 1.9 | 10:18 |
| Feb | 70% | 86% | 2.2 | 11:02 |
| Mar | 66% | 85% | 2.9 | 11:54 |
| Apr | 63% | 84% | 3.8 | 12:55 |
| May | 64% | 87% | 4.2 | 13:45 |
| Jun | 67% | 88% | 4.1 | 14:11 |
| Jul | 75% | 84% | 4.2 | 14:00 |
| Aug | 78% | 81% | 4.1 | 13:17 |
| Sep | 79% | 90% | 2.8 | 12:19 |
| Oct | 78% | 89% | 2.2 | 11:20 |
| Nov | 74% | 81% | 1.9 | 10:30 |
| Dec | 70% | 75% | 1.8 | 10:06 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Mianyang is like
The warmest month is July, with an average high of 32 °C90 °F and a low of 24 °C75 °F. The coldest is January, when highs average 10 °C51 °F and lows 2 °C36 °F. Seasons are strongly marked: the warmest month is on average 22 °C39.6 °F warmer than the coldest.
Annual precipitation is moderate at about 895 mm35 in. The wettest three-month stretch is July–September, which brings 58% of the annual total. Months with less than 20 mm0.8 in on average: November–February. The wettest month is July (220 mm8.7 in), the driest is December (7 mm0.3 in).
Relative humidity ranges from 63% in April to 79% in September. The clearest skies (lowest average cloud amount, 75%) are typical of December. Average wind speed near the ground ranges from 5 km/h (3 mph) in December to 7 km/h (4 mph) in May. Daylight lasts from about 10.1 hours in December to 14.2 hours in June.
Best time to visit Mianyang
Based on these averages, the most comfortable months for sightseeing and outdoor activities are March and April and October: average highs of 19 °C66 °F to 25 °C77 °F with 26 mm1.0 in to 52 mm2.1 in of precipitation per month.
The most challenging month is July, which is hot, with average highs of 32 °C90 °F and very wet (220 mm8.7 in).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
Mianyang weather by month
- January10 °C51 °F / 2 °C36 °F
- February14 °C57 °F / 4 °C40 °F
- March19 °C66 °F / 9 °C48 °F
- April25 °C77 °F / 14 °C57 °F
- May29 °C84 °F / 18 °C65 °F
- June32 °C89 °F / 22 °C71 °F
- July32 °C90 °F / 24 °C75 °F
- August31 °C88 °F / 23 °C74 °F
- September27 °C81 °F / 19 °C67 °F
- October22 °C72 °F / 14 °C58 °F
- November17 °C62 °F / 9 °C48 °F
- December11 °C53 °F / 3 °C38 °F
What to pack for Mianyang
- Winter (December–February) — highs 1051 to 14 °C57 °F, lows 236 to 4 °C40 °F, about 8 mm0.3 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket.
- Spring (March–May) — highs 1966 to 29 °C84 °F, lows 948 to 18 °C65 °F, about 57 mm2.3 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 3188 to 32 °C90 °F, lows 2271 to 24 °C75 °F, about 167 mm6.6 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
- Autumn (September–November) — highs 1762 to 27 °C81 °F, lows 948 to 19 °C67 °F, about 66 mm2.6 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket.
How Mianyang compares
Compared with Chengdu, about 107 km to the southwest, Mianyang is on average 0.7 °C1.2 °F warmer and receives 10% less precipitation (895 mm35 in vs 990 mm39 in). The difference is largest in January (1 °C1.8 °F warmer).
Of the 547 places in China covered by World Climates, Mianyang is the 142nd warmest by annual mean temperature and the 276th wettest by annual precipitation. See all of them on the China climate page.
Places in other countries with the most similar temperature and rainfall pattern (seasons shifted for the other hemisphere where needed): San Luis (Argentina, Cwa), Midland (United States, BSk) and Odessa (United States, BSh).
The same NASA POWER grid cell also contains Mianzhu, Deyang, Sichuan (pop. 510,000) and Luojiang (pop. 212,186). Their long-term averages in this dataset are essentially the same as for Mianyang, so they do not have separate pages.
Nearby places
- Jiangyou 33 km · 17 °C63 °F · 929 mm37 in
- Deyang 47 km · 18 °C64 °F · 920 mm36 in
- Pingwu County 105 km · 17 °C62 °F · 788 mm31 in
- Chengdu 107 km · 17 °C63 °F · 990 mm39 in
- Suining 136 km · 18 °C65 °F · 995 mm39 in
- Ziyang 150 km · 18 °C64 °F · 1,067 mm42 in
- Guangyuan 153 km · 17 °C62 °F · 961 mm38 in
- Nanchong 153 km · 18 °C64 °F · 1,018 mm40 in
Frequently asked questions
What is the warmest month in Mianyang?
July is the warmest month in Mianyang, with an average high of 32 °C (90 °F) and an average low of 24 °C (75 °F).
What is the coldest month in Mianyang?
January is the coldest month, with an average high of 10 °C (51 °F) and an average low of 2 °C (36 °F).
When does it rain the most in Mianyang?
July is the wettest month with about 220 mm (8.7 in) of precipitation; December is the driest with about 7 mm (0.3 in).
What is the best time to visit Mianyang?
Judging by long-term averages, the most comfortable months are March and April and October.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 963 m, while Mianyang lies at about 471 m. Temperatures on this page were therefore adjusted by +3.2 °C5.8 °F using the standard lapse rate of 6.5 °C per 1,000 m.