Thimphu experiences a subtropical highland climate, heavily influenced by the Indian monsoon. Because of its elevation, the climate remains cool and temperate compared to the southern border towns of Bhutan.
* **Temperatures:** Winters (December to February) are crisp and cold, with average lows around -2°C (28°F) and daytime highs of 12°C to 15°C (54°F-59°F). Summers (June to August) are warm but rarely hot, averaging highs of 25°C (77°F). * **Precipitation:** The vast majority of the district's rainfall occurs during the summer monsoon months, bringing heavy rains, high humidity, and occasional landslides. * **Snowfall:** Light snowfall is common in the city during winter, though it rarely accumulates for long. The higher passes and northern mountains receive heavy winter snows. * **Best Time to Visit:** Spring (March to May) and Autumn (September to November) offer the best weather, featuring clear blue skies, comfortable temperatures, and excellent visibility of the surrounding peaks. * **Köppen Classification:** Cwa / Cwb (Subtropical highland climate with dry winters).