Average Monthly Sunshine in Kathmandu

Sunshine is key to understanding how a place experiences its seasons. This page shows the total number of hours of direct sunlight per month and the average hours per day in Kathmandu, Nepal. This average is based on long-term data collected between 1990 and 2020.

Monthly hours of sunshine

Sunshine in Kathmandu varies greatly throughout the year. The sunniest month, March, reaches an impressive 260 hours, while September, the darkest month, offers only 133 hours. The total annual amount of sun is 2547 hours.

Daily hours of sunshine

In Kathmandu, summer days are longer and more sunny, with daily sunshine hours peaking at 8.7 hours in March. As the darker season arrives, the brightness of the sun becomes less. September sees a soft sun for only 4.4 hours per day.

Kathmandu’s total hours of sunshine compared to other major cities

Kathmandu enjoys an average of 2547 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

In Barcelona, Spain, there are 2530 hours of sunshine annually and is a city that can be visited year-round.

In contrast, Tromsø , Norway, receives only about 1270 hours of sunshine per year, known for the polar night with no sunlight for weeks during winter.

Boston, USA, enjoys 2629 hours of sunshine annually, with distinct seasons and many bright, sunny days.

Melbourne, Australia, has 2380 hours of sunshine annually, with its famous “four seasons in a day” weather pattern.

Other climate information

July, Kathmandu’s wettest month, receives 470 mm of rainfall and has a maximum daytime temperature of 26°C. During the driest month December you can expect a temperature of 18°C.

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Kathmandu Precipitation page.