Weather in Nanjing in April

China · 20-year averages, April

Prime time. If you get to pick your dates, April is the one. Highs average 22.1 °C, lows 10 °C, and rain falls on 9 days — nothing in the month is working against you.

April ranks 2 of 12 in Nanjing. Only October scores clearly higher, and the difference is small enough to be settled by price rather than weather.

Rain on 9 days, 3 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

The averages here are honest — no hidden extremes worth planning around. Across the twenty years measured, the hottest April day reached 34 °C and the coldest night fell to -0.6 °C, and the wettest single day dropped 54 mm — roughly 57% of the month's rain in one day.

April is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest April on record still delivered 181 mm against 17 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 95 mm average is a reasonable planning figure, not a promise.

Wind is light at 10.4 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 73%.

How April sits in the year

The month is on the way up: 6.2 °C warmer than March, and May adds another 5.4 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short.

Daylight in April

12.9 hours of daylight, gaining 0.9 hours across the month. That is between Nanjing's extremes of 14.2 and 10.1 hours, so days are long enough not to constrain the plan.

An inland climate

With no coast nearby, the year swings a fair way — 34.2 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

April in Nanjing versus nearby

If Nanjing is one option among several, the nearby comparison is worth making. Hangzhou is close enough to be a coin toss — within a degree on temperature, 3 days more rain. Shanghai is close enough to be a coin toss — within a degree on temperature, 2 days more rain.

So: April is effectively as good as it gets here — 5 points behind October, which is inside the margin where the weather stops being the deciding factor and price starts being it.

Every month in Nanjing

MonthHigh °CLow °CRain daysRain mmHumidity %Daylight hScore
January7.5-2 8527710.341
February10.50.1 964781152
March15.94.1 8707511.971
April22.110 9957312.981
May27.515.8 9877113.879
June30.820.6 121817414.257
July32.224.7 162438214.140
August31.924.1 151558113.446
September28.519 9947812.475
October23.612.7 7557311.486
November17.16.1 7597510.577
December9.6-0.3 7427510.148

See all twelve months in Nanjing, or where else to go in April.

Planning the rest of the trip

Built and maintained by Amit Sharma, Auckland, New Zealand. I build these sites so the answer is free and the data is public.

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