The kingdom stretches across three climatic zones: from the sub-tropical jungles in the south, to the moderate heights of 2,000 to 2,500 m in the centre, and up to the alpine world of the high Himalayas. Temperatures in the central valleys do not normally exceed 30°C in summer, and sit around 15°C during the day in winter.
Spring is a botanist's delight. Rhododendrons, wild azaleas and masses of wild flowers including edelweiss cover the meadows. Pear and apple blossom add pink and white to the valleys.
Summer is the abundant time of year. Flowers are in bloom, the valleys are green, weeping willows sweep the river banks, and the pine cones glisten with resin. It is also the monsoon, so expect rain in the afternoons.
Autumn casts a bright golden light over the landscape. The rice fields ripen to a golden brown under crisp blue skies, and cosmos flowers dot the countryside. Most of the big festivals are held now, and the mountain views are at their clearest.
Winter has its moments. The days are full of sunshine while evenings turn cold. Soft clouds drape over the mountain tops. Fewer visitors, clearer air, and the black-necked cranes are in Phobjikha.