Climate Overview
The climate in Tenzing-Hillary Airport is cold. The average annual temperature is 0°C and approximately 1617mm of precipitation falls per year. July is the wettest month, receiving around 484mm of rainfall. Tenzing-Hillary Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, February, December, when temperatures can drop to -16°C. Snowfall occurs from January to December, with around 165cm accumulating over the season.
Temperature
Temperatures in Tenzing-Hillary Airport vary considerably across the year, with a 27°C difference between the coldest and warmest months. August is the warmest month, though highs remain moderate at 11°C with a mean of 8°C. January brings the harshest conditions, with lows dropping to -16°C and an average temperature of -10°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 5°C shift in average temperatures.
Precipitation
Tenzing-Hillary Airport is a fairly wet location, receiving approximately 1617mm of precipitation annually, which averages out to around 135mm per month. The wettest month is July, averaging 484mm of rainfall. August and June also tend to see above-average precipitation. The driest month is November, with just 4mm. That's 480mm less than July, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Snowfall is a regular feature from January to December, with around 165cm accumulating over the season. July typically sees the most snow at around 28cm.
Wind
Tenzing-Hillary Airport is relatively calm, with an average annual wind speed of 6km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in Tenzing-Hillary Airport, which began on March 20, 2026. Tenzing-Hillary Airport is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 11°C, while the coldest stretch bottoms out in January near -16°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from -10 to 6°C. Precipitation is moderate at around 208mm for the season, averaging 69mm per month. Winds are generally light, averaging 7km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 4 to 11°C. Rainfall is heavy, totalling around 1092mm across the season with a monthly average of 364mm. Winds are generally light, averaging 6km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -7 to 10°C. Precipitation is moderate at around 268mm for the season, averaging 89mm per month. Expect around 22cm of snow accumulation during this period. Winds are generally light, averaging 6km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from -16 to 0°C. Rainfall is relatively light, with around 49mm over the season and a monthly average of 16mm. Expect around 35cm of snow accumulation during this period. Winds are generally light, averaging 7km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.
Monthly Climate Data
The table below shows monthly climate averages for Tenzing-Hillary Airport based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
