Short answer
Two windows beat everything else: the second half of October through November, and the second half of March through mid-April. Late October brings 28°C days and November 24°C, humidity falls to 67–71%, and rain drops to about 30–60mm a month across four to seven wet days.
Avoid high summer unless you know what you are signing up for. June is the wettest month at roughly 320mm over 21 rain days, July and August hold 33°C highs with 17–18 rain days each, and July to September is when three to four tropical cyclones a year come past the city.
Crowds here follow the national calendar, not the weather. National Day, 1–7 October, is the biggest spike of the year, and Spring Festival, 15–23 February in 2026, is second. Book trains, flights and hotels weeks ahead for those weeks.
Month by month
| Month | Daytime high | Rain | What it is like |
|---|---|---|---|
| January | 19°C | Dry season | Clear, mild days and cool nights. The pick of winter. |
| February | Around 20°C | Dry season | Spring Festival falls here in 2026. Busy at the start, then unusually quiet. |
| March | Around 22°C | Rain starts returning | Best spring window, especially the second half. |
| April | Around 26°C | Wet season begins | Warm and showery; Qingming holiday 4–6 April. |
| May | Around 29°C | Wet | Hot and humid; Labour Day holiday 1–5 May. |
| June | 33°C | About 320mm, 21 rain days | The wettest month of the year, humidity around 83%. |
| July | 33°C | About 240mm, 18 rain days | Typhoon season opens. Plan mornings outdoors. |
| August | 33°C | About 220mm, 17 rain days | Peak heat and peak typhoon risk. |
| September | 31°C | About 170mm, 14 rain days | Cooling slightly, typhoon risk remains. Mid-Autumn 25–27 September. |
| October | 28°C | About 60mm, 7 rain days | Golden Week crowds to the 7th, then the best fortnight of the year. |
| November | 24°C | About 30mm, 4 rain days | The best month: dry, clear, comfortable, humidity about 67%. |
| December | Around 20°C | Dry season | Peak season weather without the heat. Book ahead for the run-up to New Year. |
Winter, December to February
Mild and dry, with 19–20°C daytime highs and cool nights. The catch is indoor comfort: southern China has no central heating, so hotel rooms and restaurants can feel chilly in a cold snap, and a jumper earns its place in the bag. This is the best stretch for walking the city, from the parks to the coastal promenades, without sweating through it.
Spring and the return of rain, March to April
Mid-March to mid-April is the second-best window of the year. Temperatures are pleasant, humidity is still low, and the rain has not settled in. The wet season starts in April, so a compact umbrella goes in the day bag from then on. Qingming, 4–6 April, is a domestic travel holiday; attractions are busier and hotel rates lift.
Summer and typhoons, May to September
Hot, wet and humid. June is the wettest month in the year and the least forgiving for outdoor sightseeing. July and August keep 33°C highs, and the felt temperature climbs well above that once humidity sits in the low 80s.
The practical adjustment is timing rather than avoidance: outdoor work before about 10 a.m., the air-conditioned middle of the day inside a museum or a mall, and evenings outdoors again. The metro is air-conditioned and runs regardless of what is happening above ground, which makes it the most reliable way to move in a downpour.
Autumn, the best of it, October to November
October opens with Golden Week, 1–7 October, the busiest travel week in the country, when hotels and intercity trains sell out days ahead. After the 7th, the city empties and the weather is excellent: 28°C days, 71% humidity, seven wet days in the whole month. November is the best month of the year by a clear margin — 24°C days, 30mm of rain across four days, and the lowest humidity of the year.
Public holidays in 2026 that change everything
These are the national dates. Expect rail and flight capacity to tighten a month out, and hotel rates to rise for the week itself.
| Holiday | Days off in 2026 | Effect on a Shenzhen trip |
|---|---|---|
| New Year | 1–3 January | Short spike, mostly domestic. Manageable. |
| Spring Festival | 15–23 February (New Year's Day 17 February) | Biggest family travel period. Trains and flights sell out weeks ahead. |
| Qingming | 4–6 April | Three-day break, busy attractions. |
| Labour Day | 1–5 May | Five days off. Book transport early. |
| Dragon Boat Festival | 19–21 June | Short break in the wettest month. |
| Mid-Autumn Festival | 25–27 September | Still typhoon season; moon-gazing events across the city. |
| National Day | 1–7 October | The year's biggest spike. Hotels and trains go first. |
One detail that catches visitors out: China moves working days to build these breaks. In 2026, 9 May, 20 September and 10 October are all working days, so a Saturday you assumed was a weekend may be a normal working day for museums, offices and some shops. Check opening days rather than assuming.
What to pack by season
| Season | Pack |
|---|---|
| November to March | Light layers, one warm jumper, a light waterproof, comfortable walking shoes. Evenings are cooler than the daytime high suggests. |
| April to May | A compact umbrella, a light breathable layer, sunscreen. Wet pavements, so avoid suede and thin-soled shoes. |
| June to September | Quick-dry clothing, two changes for a full day outdoors, sunscreen, a hat, mosquito repellent for parks and the coast, and a dry bag for electronics. |
Common mistakes
- Booking flights out of China around 30 September. The days before Golden Week are the hardest seats of the year to find.
- Judging Shenzhen by the weather forecast alone. A 90% rain day is usually a heavy afternoon burst with a dry morning, not twelve hours of drizzle.
- Wearing the wrong shoes in summer. Downpours leave standing water, and streets drain slowly.
- Assuming winter is warm everywhere in China. Shenzhen is mild at 19–20°C, but indoor spaces are unheated and can feel colder than the forecast reads.
- Ignoring the adjusted working weekends. Holiday make-up days move, and attraction opening hours follow the working calendar.
Once the dates are set, the practical side is next: see the Shenzhen travel guide for metro, payment and arrival basics, and what to see in Shenzhen for a plan that holds up in either season. A wet forecast is a reason to keep one indoor day in reserve, not a reason to change the trip.
Frequently asked questions
What is the best month to visit Shenzhen?
November. Daytime highs sit around 24°C, humidity drops to about 67%, and the month averages roughly 30mm of rain over four wet days. The second half of October and the second half of March are close behind.
How hot does Shenzhen get in summer?
June, July and August all average 33°C daytime highs with lows near 27°C, and the humidity pushes the felt temperature higher. Plan outdoor sightseeing before about 10 a.m. or after 5 p.m., and keep an indoor option for the middle of the day.
When is typhoon season in Shenzhen?
July to September, when three to four tropical cyclones a year affect the city on average. Most pass without a direct hit, but a direct one closes ferries, cancels flights and shuts outdoor attractions. Keep the forecast window flexible if you book those months.
How much rain does Shenzhen get?
June is the wettest month at about 320mm across 21 rain days, with July at 240mm and August at 220mm. October falls to about 60mm over seven days and November to about 30mm over four. Rain in the wet season often arrives as a heavy afternoon burst rather than all-day drizzle.
Which public holidays should I avoid in Shenzhen?
National Day, 1–7 October, is the biggest travel spike of the year, and Spring Festival, 15–23 February in 2026, is the second. Labour Day, 1–5 May, and Mid-Autumn, 25–27 September, are also busy. Trains, flights and hotels sell out days or weeks ahead of each.
Is winter cold in Shenzhen?
Mild, not cold. January daytime highs average about 19°C and the months from October to March are the dry season. Nights drop noticeably and there is no central heating in southern China, so a jumper and a light coat earn their place in the bag.
What should I pack for Shenzhen?
A compact umbrella all year, sunscreen and a hat for April to October, quick-dry clothing for the wet season, and one warm layer plus a light waterproof for October to March. Bring shoes that survive wet pavement — summer downpours leave standing water on the pavements.
Related reading
Compiled from Shenzhen climate averages and rain-day records, local meteorological reporting on the July–September tropical cyclone season, the 2026 State Council public holiday schedule including adjusted working days, and Shenzhen visitor crowd reports, cross-checked 30 September 2026. Monthly averages are long-run figures, not forecasts — check the local meteorological service's official channel for the week you travel, and the official channel for any attraction whose opening hours fall on a holiday or an adjusted working day.