Climate Insights for Gustavus Airport

The climate in Gustavus Airport is cool. The average annual temperature is 6°C and approximately 2872mm of precipitation falls per year. Gustavus Airport receives a notable amount of rainfall throughout the year, including during its driest month. Gustavus Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are February, January, March, when temperatures can drop to -1°C. Gustavus Airport experiences heavy snowfall, typically from January through December.

Gustavus Airport sees moderate temperature variation throughout the year, ranging from -1°C to 14°C. August is the warmest month, though highs remain moderate at 14°C with a mean of 13°C. The coldest month is February, when overnight lows fall to -1°C and the daily average is 0°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between September and October, with a 4°C shift in average temperatures.

Gustavus Airport is a very wet location, receiving approximately 2872mm of precipitation annually, which averages out to around 239mm per month. The wettest month is December, averaging 374mm of rainfall. October and November also tend to see above-average precipitation. The driest month is June, with just 147mm. That's 227mm less than December, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Gustavus Airport receives heavy snowfall, accumulating around 524cm annually from January through December. The snowiest month is December, with approximately 116cm. Winter travel should account for significant snow cover.

Gustavus Airport is relatively calm, with an average annual wind speed of 4km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 6km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 3km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 6km/h in winter, 4km/h in spring, 3km/h in summer, 5km/h in autumn.

It is currently spring in Gustavus Airport, which began on March 20, 2026. Gustavus 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 14°C, while the coldest stretch bottoms out in February near -1°C. Summer is next, beginning on June 21, 2026 — 7 days from now.

The table below shows monthly climate averages for Gustavus 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.