Can I wear a sweater in October?

Depending on the geographical location and climate.

/kloc-whether you can wear a sweater in 0/0 depends mainly on your geographical location and climate. Generally speaking, sweaters are suitable for autumn and spring. In China, it's getting colder and colder in 10, so you can wear sweaters at this time. In addition, the thickness of the sweater is also a factor to be considered. You can wear a thinner sweater when the temperature is higher, and a thicker sweater when the temperature is lower.

The month of 10 is 10 in Gregorian calendar, which is a big month with 3 1 day. In the northern hemisphere, 10 is the second month of autumn. Lunar October solar terms: cold dew (8-9), first frost (23-24).