Weather in Wuhan in May
China · 20-year averages, May
A good month. May works. It is not the peak, but nothing about it fights you. Highs average 27.3 °C, lows 18.3 °C, and rain falls on 13 days — nothing in the month is working against you.
May ranks 4 of 12 in Wuhan: past the worst of the year but short of October, which is the month to book if the dates are open.
This is wet-season rain: 13 wet days and 5 genuinely heavy ones, which in this climate means concentrated downpours rather than all-day grey. The pattern is usually a clear morning and a loud afternoon, so front-load the day and stop fighting the 3pm hour. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.
What the averages hide
Averages flatten a month, and this one hides a few things: 6 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest May day reached 36.4 °C and the coldest night fell to 8.9 °C, and the wettest single day dropped 77 mm — roughly 48% of the month's rain in one day.
May is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest May on record still delivered 247 mm against 80 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 160 mm average is a reasonable planning figure, not a promise.
Wind is light at 9.5 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 75%, high enough to notice on the warm days without dominating them.
How May sits in the year
The month is on the way up: 4.3 °C warmer than April, and June adds another 3 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short.
Daylight in May
May is at or near the longest days of Wuhan's year: 13.7 hours of daylight, gaining 0.6 hours across the month. Evenings are the real gain — dinner outdoors still happens in full light.
An inland climate
With no coast nearby, the year swings a fair way — 32.3 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.
How busy it gets
Busy. Popular without being frantic; book the things you care about, improvise the rest.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
May in Wuhan versus nearby
If Wuhan is one option among several, the nearby comparison is worth making. Nanjing is close enough to be a coin toss — within a degree on temperature, 4 days less rain. Hangzhou is close enough to be a coin toss — within a degree on temperature, the same number of rain days.
So: May works, with October the better month by 12 points if the dates can move. If they cannot, nothing here should stop you booking.
Every month in Wuhan
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 9.1 | 0.3 | 8 | 50 | 74 | 10.4 | 48 |
| February | 12 | 2.9 | 10 | 73 | 75 | 11.1 | 56 |
| March | 17.2 | 7.5 | 11 | 92 | 74 | 11.9 | 69 |
| April | 23 | 13.1 | 12 | 140 | 74 | 12.9 | 74 |
| May | 27.3 | 18.3 | 13 | 160 | 75 | 13.7 | 71 |
| June | 30.3 | 22.8 | 14 | 221 | 78 | 14.1 | 54 |
| July | 32.4 | 26 | 15 | 222 | 80 | 14 | 45 |
| August | 32.6 | 25.4 | 14 | 120 | 77 | 13.3 | 48 |
| September | 29.7 | 20.9 | 9 | 77 | 72 | 12.4 | 71 |
| October | 24.3 | 14.7 | 9 | 75 | 70 | 11.5 | 83 |
| November | 17.6 | 8.2 | 9 | 68 | 72 | 10.6 | 75 |
| December | 10.9 | 1.9 | 6 | 34 | 71 | 10.2 | 60 |
Planning the rest of the trip
- Flight time to Wuhan how long you are actually in the air
- Wuhan time zone and the difference from home
- Days until your trip count down to the departure date