Climate guide for Nanjing, China

Best Time to Visit
Nanjing

How to read the score (0–10)
05810
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About Nanjing

Nanjing is a sightseeing destination in China. Plan around late spring through early autumn for more reliable conditions, then drill into monthly scores when you need finer timing for sightseeing travel. Use the monthly scores to plan walking and sightseeing days around heat, rainfall, humidity and daylight.

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Travel Tips

Timing & weather
Check Nanjing's monthly climate scores before locking flights - temperate patterns shift comfort for sightseeing trips across the year.
Getting around
In Nanjing, pair a walkable core day with one transit or transfer buffer - crowds and traffic vary by season in China.
Tickets & access
Reserve popular museums and day trips from Nanjing ahead in peak months; shoulder seasons are more flexible.
Pack for the profile
Comfortable walking shoes and a day bag matter more than formal wear for most Nanjing sightseeing days.

Things to do in Nanjing

Nanjing, China. Live activities and tours from GetYourGuide, matched to this destination.

When to visit Nanjing: the short answer

The best time to visit Nanjing is May, followed by April, October. Those months combine the most usable temperatures with the fewest lost days to rain: May averages 21°C with 83 mm of rain and about 23 sunny days. The months to avoid unless you have a specific reason are July, August. If budget matters more than perfect weather, June is the strongest of the low-rate months at 4.5/10.

Across the year Nanjing swings from 3°C in December to 30°C in August, a 26-degree spread, while rainfall ranges from 31 mm in December to 245 mm in June. That is the whole planning problem in one sentence: Nanjing is not equally good year-round, and the difference between the best and worst month here is 5.4 points on a 10-point scale.

Warmest month: August (30°C). Coolest: December (3°C). Driest: December (31 mm). Wettest: June (245 mm).

Nanjing month by month

January in Nanjing — workable with trade-offs

Trade-offs · 5.3/10

January averages 4°C (38°F), cold enough that sightseeing works in bursts rather than in one long day on foot.

Rainfall runs 54 mm, so plan one flexible day in three; you still get about 1 sunny days and 10.1 hours of daylight.

It scores 5.3/10 here, 8th of 12 months, against 8.5/10 in the destination's best month.

Expect mid-season pricing, and crowds are moderate.

Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer.

If your dates are flexible, May is materially better in Nanjing — 3.2 points higher on the same scale.

February in Nanjing — the hardest end of the year

Hardest · 4.7/10

February averages 4°C (39°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

Rainfall runs 86 mm, so plan one flexible day in three; you still get about 3 sunny days and 10.8 hours of daylight.

It scores 4.7/10 here, 9th of 12 months, against 8.5/10 in the destination's best month.

Expect mid-season pricing, and crowds are light for this destination.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.

If your dates are flexible, May is materially better in Nanjing — 3.8 points higher on the same scale.

March in Nanjing — workable with trade-offs

Trade-offs · 6.7/10

March averages 12°C (53°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

At 100 mm this is a genuinely wet month: about 12 sunny days in total, and outdoor plans need an indoor fallback.

It scores 6.7/10 here, 5th of 12 months, against 8.5/10 in the destination's best month.

Expect mid-season pricing, and crowds are moderate.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella.

If your dates are flexible, May is materially better in Nanjing — 1.8 points higher on the same scale.

April in Nanjing — reliably good (2nd best month)

Good · 7.6/10

April averages 17°C (62°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

At 107 mm this is a genuinely wet month: about 17 sunny days in total, and outdoor plans need an indoor fallback.

It scores 7.6/10 here, 2nd of 12 months, against 8.5/10 in the destination's best month.

Expect mid-season pricing, and crowds are moderate.

Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.

May in Nanjing — the year's strongest window

Best window · 8.5/10

May averages 21°C (71°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.

Rainfall runs 83 mm, so plan one flexible day in three; you still get about 23 sunny days and 13.6 hours of daylight.

On our climate-comfort scale this is the top-ranked month of the year for Nanjing at 8.5/10 — the reference point every other month on this page is measured against.

Expect mid-season pricing, and crowds are moderate.

Pack light clothing, swimwear and real sun protection, a packable rain layer.

June in Nanjing — the hardest end of the year

Hardest · 4.5/10

June averages 27°C (80°F) with humidity around 74%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

245 mm of rain puts this in monsoon territory — about 20 sunny days across the whole month, and multi-day washouts are normal.

It scores 4.5/10 here, 10th of 12 months, against 8.5/10 in the destination's best month.

Expect low-season pricing, and crowds are light for this destination.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.

If your dates are flexible, May is materially better in Nanjing — 4 points higher on the same scale.

July in Nanjing — the hardest end of the year

Hardest · 3.1/10

July averages 29°C (85°F) with humidity around 83%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

220 mm of rain puts this in monsoon territory — about 19 sunny days across the whole month, and multi-day washouts are normal.

It scores 3.1/10 here, 12th of 12 months, against 8.5/10 in the destination's best month.

Expect low-season pricing, and crowds are light for this destination.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.

If your dates are flexible, May is materially better in Nanjing — 5.4 points higher on the same scale.

August in Nanjing — the hardest end of the year

Hardest · 3.9/10

August averages 30°C (85°F) with humidity around 76%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

At 144 mm this is a genuinely wet month: about 22 sunny days in total, and outdoor plans need an indoor fallback.

It scores 3.9/10 here, 11th of 12 months, against 8.5/10 in the destination's best month.

Expect mid-season pricing, and crowds are moderate.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.

If your dates are flexible, May is materially better in Nanjing — 4.6 points higher on the same scale.

September in Nanjing — workable with trade-offs

Trade-offs · 5.5/10

September averages 25°C (77°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.

At 126 mm this is a genuinely wet month: about 13 sunny days in total, and outdoor plans need an indoor fallback.

It scores 5.5/10 here, 7th of 12 months, against 8.5/10 in the destination's best month.

Expect mid-season pricing, and crowds are moderate.

Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella.

If your dates are flexible, May is materially better in Nanjing — 3 points higher on the same scale.

October in Nanjing — reliably good (3rd best month)

Good · 7.6/10

October averages 18°C (64°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Rainfall runs 72 mm, so plan one flexible day in three; you still get about 10 sunny days and 11.2 hours of daylight.

It scores 7.6/10 here, 3rd of 12 months, against 8.5/10 in the destination's best month.

Expect mid-season pricing, and crowds are moderate.

Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.

November in Nanjing — reliably good (4th best month)

Good · 7.1/10

November averages 13°C (55°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Rainfall runs 53 mm, so plan one flexible day in three; you still get about 3 sunny days and 10.3 hours of daylight.

It scores 7.1/10 here, 4th of 12 months, against 8.5/10 in the destination's best month.

Expect mid-season pricing, and crowds are moderate.

Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.

December in Nanjing — workable with trade-offs

Trade-offs · 6/10

December averages 3°C (38°F), cold enough that sightseeing works in bursts rather than in one long day on foot.

Expect 31 mm of rain — occasional showers rather than washed-out days — alongside about 2 sunny days and 9.9 daylight hours.

It scores 6/10 here, 6th of 12 months, against 8.5/10 in the destination's best month.

Expect mid-season pricing, and crowds are moderate.

Pack insulated layers, a windproof shell, gloves and boots with grip.

If your dates are flexible, May is materially better in Nanjing — 2.5 points higher on the same scale.

Frequently asked

When is the best time to visit Nanjing, China?
In Ideal Weather mode, the best months to visit Nanjing are May. May is the single peak month with an Ideal Weather score of 8.5/10 based on temperature, rainfall, humidity, daylight and historical sunny days.
What is the weather like in Nanjing year-round?
Nanjing has a climate profile suited to sightseeing and cultural travel. Average monthly temperatures range from 3°C in December to 30°C in August, with Ideal Weather scores between 3.1 and 8.5 out of 10.
Which months should I avoid in Nanjing?
The lowest Ideal Weather-scoring months in Nanjing are July (3.1/10), August (3.9/10), June (4.5/10). These months typically combine less comfortable temperatures, higher rainfall or fewer sunny days.
When is the rainy season in Nanjing?
June is the wettest month in Nanjing, averaging about 245 mm of rainfall. December is the driest, at roughly 31 mm.
Which is the sunniest month in Nanjing?
May sees the most sun in Nanjing, with about 23 sunny days on average - ideal for outdoor plans.
Is Nanjing a good destination for sightseeing and cultural travel?
Nanjing is well suited to sightseeing and cultural travel. Its highest Ideal Weather window (May) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Nanjing calculated?
Each month receives an Ideal Weather score from 0-10 using ERA5 climate normals for Nanjing: temperature comfort, precipitation, humidity, daylight hours, and historical sunny days - weighted for sightseeing and cultural travel.

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Curated in Nanjing

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