Climate Overview
The climate in Harry-Walt Airport is cool. The average annual temperature is 8°C and approximately 926mm of precipitation falls per year. August is the wettest month, receiving around 136mm of rainfall. Harry-Walt Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, June, August. The coldest months are January, February, December, when temperatures can drop to -12°C. Snowfall occurs from January to December, with around 145cm accumulating over the season.
Temperature
Harry-Walt Airport has a wide annual temperature range, spanning 41°C from the coldest to warmest months. The warmest month is July, when average highs reach 29°C and the mean temperature sits around 23°C. The coldest month is January, when overnight lows fall to -12°C and the daily average is -9°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 9°C shift in average temperatures.
Precipitation
Harry-Walt Airport is a moderately rainy area, receiving approximately 926mm of precipitation annually, which averages out to around 77mm per month. The wettest month is August, averaging 136mm of rainfall. July and September also tend to see above-average precipitation. The driest month is January, with just 24mm. That's 112mm less than August, 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 145cm accumulating over the season. December typically sees the most snow at around 29cm.
Wind
Harry-Walt Airport is relatively calm, with an average annual wind speed of 3km/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 4km/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 conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.
Seasons
6 days until Summer
It is currently spring in Harry-Walt Airport, which began on March 20, 2026. Harry-Walt 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 July at around 29°C, while the coldest stretch bottoms out in January near -12°C. Summer is next, beginning on June 21, 2026 — 6 days from now.
Spring
Temperatures range from -4 to 21°C. Precipitation is moderate at around 241mm for the season, averaging 80mm 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 16 to 29°C. Rainfall is heavy, totalling around 340mm across the season with a monthly average of 113mm. Winds are generally light, averaging 3km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from -3 to 22°C. Precipitation is moderate at around 250mm for the season, averaging 83mm per month. Expect around 30cm of snow accumulation during this period. Winds are generally light, averaging 4km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from -12 to -2°C. Rainfall is relatively light, with around 95mm over the season and a monthly average of 32mm. Expect around 74cm of snow accumulation during this period. Winds are generally light, averaging 3km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.
Best Time to Visit
The best time to visit Harry-Walt Airport is during June, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 90mm per month. By contrast, July can be uncomfortably hot with highs reaching 29°C, while January is the coldest period with lows dropping to -12°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.
Monthly Climate Data
The table below shows monthly climate averages for Harry-Walt 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.
