As for Moscow – weather is really nice and warm and sunny from May to August, but winter here is long and quite cold too. It gets colder every day, starting from September. November – March are usually the cold months. But it typically gets really cold (-25C or -13F) for only couple of weeks during the winter. All other time temperature fluctuates from +5 to -10C (41F-14F), hanging around zero Celsius (32 F) a lot.