Bhutan's climate ranges from tropical in the south, to temperate in the centre of the country, to cold in the north. The best time to go to Bhutan is in the Spring or Autumn. Mid December to early January can be a beautifully clear and a dry time in western Bhutan. Late December through mid February is the period of heaviest snowfall in the higher elevations. The autumn season, late September through November, is usually mild and the sky is at its clearest affording magnificent views of the Himalayas.