Weather in Xi’an in January

A hard month. January is a hard month in Xi’an, and worth planning around. Highs sit at 6.8 °C and the day is short; this is an indoors-with-excursions month, not an outdoors-all-day one.

January ranks 9 of 12 in Xi’an: past the worst of the year but short of March, which is the month to book if the dates are open.

Rain falls on only 2 days, so an itinerary with no wet-weather fallback is a reasonable risk. Layers, and a genuinely waterproof outer — at 6.8 °C the difference between a good day and a miserable one is entirely down to what you are wearing.

What the averages hide

Averages flatten a month, and this one hides a few things: 26 nights drop below freezing, so anything left outside stays frozen. Across the twenty years measured, the hottest January day reached 20.3 °C and the coldest night fell to -14.1 °C.

January is moderately variable: 0 mm in the driest year against 25 mm in the wettest, around an average of 9 mm. Roughly two Januarys in three land near that average, and the third does something else entirely.

Wind is light at 5.1 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 61%.

How January sits in the year

This is a turning point in the year — December and February sit on opposite sides of it, so the month contains the change rather than following it.

Daylight in January

January sits at the dark end of Xi’an's year — 10.1 hours of daylight against 14.4 at midsummer, gaining 0.6 hours across the month. Sightseeing days are genuinely shorter, and an itinerary built for summer will not fit.

An inland climate

With no coast nearby, the year swings a fair way — 37.4 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.

How busy it gets

Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.

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

January in Xi’an versus nearby

If Xi’an is one option among several, the nearby comparison is worth making. Wuzhong is the weaker option in January — 5.9 °C cooler, 1 day less rain. Chongqing is a better bet in January — 5.1 °C warmer, 5 days more rain.

So: January is a compromise. March is 39 points better and is what Xi’an is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Xi’an

See all twelve months in Xi’an, or where else to go in January.