Climate & Weather Guide in Bhutan

Climate zones, seasonal temperatures, rainfall patterns, and best travel times

Bhutan is a small but highly varied Himalayan country with climate shaped mainly by altitude. The southern foothills are warm, humid, and monsoon-influenced, while the central valleys are milder and can be relatively dry in places. The highest northern areas are cold alpine or nival, with long snowy winters and very short summers. Current climate references identify tropical climates in the south, humid subtropical and oceanic conditions in the mid-elevations, and cold mountain climates at higher elevations. For residents and expats, this means comfortable temperate living is possible in the valleys, but weather changes quickly with elevation and the monsoon brings heavy rain in the warmer months.

Summer Average

15-30°C

Winter Average

-10-15°C

Climate Types

Tropical and Humid subtropical and Oceanic and Alpine

Annual Rainfall

800-5000 mm

Sunshine Hours

1,800-2,800 hrs/yr

Average Humidity

50-85%

Regional Climate Variations

Southern Foothills and Border Plains

This is Bhutan’s warmest and most humid climate zone, influenced by the summer monsoon and low elevation. Conditions are tropical to subtropical, with hot, wet summers and mild winters. Rainfall is abundant, and the air often feels sticky during the monsoon season. For residents, this region offers lush scenery and year-round warmth, but also the greatest exposure to heavy rain, cloud cover, and humid conditions.

Summer:28-34°C

Winter:12-20°C

Very high rainfall

Hot, humid, and monsoon-drenched for much of the year, with a distinctly tropical feel and frequent heavy downpours in summer.

Central Valleys and Thimphu-Bumthang Belt

The central valleys form Bhutan’s most settled and climate-sensitive zone, with noticeably cooler temperatures than the south and strong seasonal contrasts. Many valley locations are comfortable in spring and autumn, while winters are chilly but generally manageable compared with the mountains. Parts of central Bhutan include drier pockets in valley bottoms, even though surrounding slopes can be much wetter. This makes the region attractive for expats seeking a temperate mountain environment with access to the country’s main towns.

Summer:18-28°C

Winter:0-10°C

High rainfall

Mild to cool mountain-valley weather with warm afternoons in summer, crisp winters, and a generally livable climate for long-term residence.

Northern High Himalaya

Bhutan’s northern highlands are cold alpine to nival terrain, where elevation dominates climate more than latitude. Summers are short and cool, while winters are long, severe, and often snowy. Permanent settlement is sparse because conditions are harsh and access is limited. This zone is best understood as a high-mountain climate with thin air, large day-night temperature swings, and frequent snow or frost outside the brief summer season.

Summer:5-15°C

Winter:-20--5°C

Low to moderate rainfall

Cold, thin, high-altitude mountain air with short cool summers and long snowy winters; more of a wilderness climate than a residential one.

Bhutan’s climate changes sharply with elevation, ranging from hot, very wet southern lowlands to cool central valleys and freezing northern mountains. For residents and expats, the most comfortable year-round conditions are usually found in the mid-elevation valleys, while the south is humid and monsoon-heavy and the far north is too cold for most everyday living.

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