01Weather
Shanghai weather in September
Afternoons in September average 29.8 °C (86 °F) and nights cool to 23.3 °C (74 °F). The month brings about 202 mm (7.9 in) of rain spread over roughly 12 days. Compared with August it is 4.6 °C cooler; October is 5.8 °C cooler again.
What the averages hide
| In a typical September | Value | What it means |
|---|---|---|
| Warm afternoons (90th percentile) | 34 °C / 93 °F | one day in ten is at least this warm |
| Cool afternoons (10th percentile) | 26 °C / 79 °F | one day in ten stays below this |
| Cold nights (10th percentile) | 20 °C / 68 °F | one night in ten is colder than this |
| Days above 30 °C (86 °F) | 15.5 | per month, average 2016–2025 |
| Nights at or below 0 °C (32 °F) | 0.0 | frost mornings per month |
| Chance of rain on any given day | 41 % | at least 1 mm |
| Hottest / coldest September day 2016–2025 | 37.0 °C / 17.0 °C | extremes in the ten-year record |
02Daylight
Sunrise, sunset and the length of the day
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 1 September | 05:30 | 18:18 | 12.8 h |
| 15 September | 05:38 | 18:00 | 12.4 h |
| 30 September | 05:47 | 17:40 | 11.9 h |
Daylight shrinks by about 54 minutes over the month. Times are local (Asia/Shanghai).
03Crowds
How busy Shanghai is in September
busy The main sights are busy in September. What drives it:
- humidity eases
- Mid-Autumn Festival
- schools back
04Public holidays
Public holidays in September 2027
| Date | Holiday |
|---|---|
| 15 Sep 2027 | Mid-Autumn Festival |
On public holidays many shops close and museums run on Sunday hours; check opening times for the day before and after as well.
05Events
What's on in Shanghai in September
Every year in September
| Event | When | Type |
|---|---|---|
| Mid-Autumn Festival | September or early October | holiday |
07Packing
What to pack for Shanghai in September
- light, breathable clothing
- sun hat and sunscreen
- refillable water bottle
- a compact umbrella or hooded rain jacket, rain falls on roughly one day in three
- something for heat: 16 days a month pass 30 °C on average
08Editor's notes
What the numbers don't tell you
September brings slow relief, with humidity dropping in the second half and afternoons around 28 °C, and the Mid-Autumn Festival filling bakeries with mooncakes and the parks with lanterns, with a holiday in September or early October. Typhoons remain possible early in the month. Schools return, and late September is the start of the best season. Rain falls on about nine days.
The Shanghai Tourism Festival opens with a parade on Huaihai Road in mid-September. The osmanthus trees scent the parks in the final week. Hotel rates rise toward Golden Week. The Formula 1 is in spring; the Shanghai Masters tennis follows in October. For Golden Week and the best weather of the year after it, see October.
09Compare
Shanghai month by month
| Month | High | Low | Rain days | Sun h | Crowds | Verdict |
|---|---|---|---|---|---|---|
| January | 10 °C | 3 °C | 11 | – | quiet | Mixed |
| February | 11 °C | 4 °C | 12 | – | moderate | Good |
| March | 17 °C | 8 °C | 12 | – | moderate | Good |
| April | 22 °C | 14 °C | 11 | – | busy | Good |
| May | 26 °C | 18 °C | 10 | – | very busy | Good |
| June | 29 °C | 22 °C | 15 | – | moderate | Good |
| July | 34 °C | 27 °C | 13 | – | moderate | Good |
| August | 34 °C | 27 °C | 14 | – | busy | Mixed |
| September | 30 °C | 23 °C | 12 | – | busy | Good |
| October | 24 °C | 17 °C | 8 | – | very busy | Good |
| November | 19 °C | 12 °C | 10 | – | busy | Good |
| December | 12 °C | 5 °C | 8 | – | moderate | Good |
Not sure about September? See the best time to visit Shanghai.
10Elsewhere
September in nearby cities
| City | High | Rain days |
|---|---|---|
| Seoul in September | 27 °C | – |
| Beijing in September | 28 °C | 8 |
| Kyoto in September | 30 °C | 10 |
| Tokyo in September | 28 °C | 12 |
| Bangkok in September | 33 °C | 24 |
| Singapore in September | 32 °C | 11 |
11FAQ
Shanghai in September: your questions
Is September a good time to visit Shanghai?
September is a good month to visit Shanghai. Daytime highs average 30 °C (86 °F), rain falls on about 12 days, and hotel arrivals run above the yearly average, so the main sights are busy.
What is the weather like in Shanghai in September?
Expect warm days around 30 °C (86 °F) and nights near 23 °C (74 °F). One September in ten brings afternoons above 34 °C, and one in ten stays below 26 °C.
Does it rain a lot in Shanghai in September?
September brings about 202 mm (7.9 in) of rain over roughly 12 days, which is showery by Shanghai standards. On any given day the chance of at least 1 mm of rain is 41 percent.
What should I wear in Shanghai in September?
Pack light, breathable clothing, sun hat and sunscreen, refillable water bottle.
Is Shanghai crowded in September?
The main sights are busy in September. Main drivers: humidity eases; Mid-Autumn Festival; schools back.
What time does it get dark in Shanghai in September?
Around the middle of September the sun sets at about 18:00 and rises at 05:38, giving 12.4 hours of daylight.