The months of June through September can be very warm and humid with temperatures between 20 to 40 C. Starting in October through April the weather turns gradually colder, averaging at about 0C, but periodically temperatures are as low as below down to -10 C to -20 C. You will need warm winter clothes: insulated coat(s) or jacket(s), scarves, gloves, hats, warm boot, sweaters, and thermal innerwear.