Climate Overview
The climate in Port Heiden Airport is cool. The average annual temperature is 5°C and approximately 1156mm of precipitation falls per year. Port Heiden Airport receives a notable amount of rainfall throughout the year, including during its driest month. Port Heiden 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 January, March, December, when temperatures can drop to -5°C. Port Heiden Airport experiences heavy snowfall, typically from January through December.
Temperature
Port Heiden Airport sees moderate temperature variation throughout the year, ranging from -5°C to 15°C. August is the warmest month, though highs remain moderate at 15°C with a mean of 13°C. The coldest month is January, when overnight lows fall to -5°C and the daily average is -3°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows. The sharpest temperature change occurs between March and April, with a 5°C shift in average temperatures.
Precipitation
Port Heiden Airport is a moderately rainy area, receiving approximately 1156mm of precipitation annually, which averages out to around 96mm per month. The wettest month is October, averaging 156mm of rainfall. December and September also tend to see above-average precipitation. The driest month is June, with just 49mm. That's 107mm less than October, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Port Heiden Airport receives heavy snowfall, accumulating around 262cm annually from January through December. The snowiest month is December, with approximately 68cm. Winter travel should account for significant snow cover.
Wind
Port Heiden Airport is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 5km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.
Seasons
76 days until Autumn
It is currently summer in Port Heiden Airport, which began on June 21, 2026. Port Heiden 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 15°C, while the coldest stretch bottoms out in January near -5°C. Autumn is next, beginning on September 23, 2026 — 76 days from now.
Spring
Temperatures range from -4 to 8°C. Precipitation is moderate at around 229mm for the season, averaging 76mm per month. Winds are generally light, averaging 4km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 7 to 15°C. Precipitation is moderate at around 214mm for the season, averaging 71mm per month. Winds are generally light, averaging 4km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 1 to 12°C. Rainfall is heavy, totalling around 406mm across the season with a monthly average of 135mm. Expect around 38cm of snow accumulation during this period. Winds are generally light, averaging 5km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from -5 to 2°C. Rainfall is heavy, totalling around 307mm across the season with a monthly average of 102mm. Expect around 155cm of snow accumulation during this period. Winds are generally light, averaging 5km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.
Monthly Climate Data
The table below shows monthly climate averages for Port Heiden 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.
