Climate Overview
The climate in Johnstone Point Airport is cool. The average annual temperature is 7°C and approximately 2911mm of precipitation falls per year. Johnstone Point Airport receives a notable amount of rainfall throughout the year, including during its driest month. Johnstone Point 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, February, March, when temperatures can drop to 1°C. Johnstone Point Airport experiences heavy snowfall, typically from January through December.
Temperature
Johnstone Point Airport sees moderate temperature variation throughout the year, ranging from 1°C to 15°C. August is the warmest month, though highs remain moderate at 15°C with a mean of 14°C. January is the coolest month, with minimum temperatures around 1°C and an average of 2°C. Daily temperature variation is modest, with an average difference of 1°C between highs and lows. The sharpest temperature change occurs between September and October, with a 4°C shift in average temperatures.
Precipitation
Johnstone Point Airport is a very wet location, receiving approximately 2911mm of precipitation annually, which averages out to around 243mm per month. The wettest month is December, averaging 353mm of rainfall. September and October also tend to see above-average precipitation. The driest month is June, with just 119mm. That's 234mm 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. Johnstone Point Airport receives heavy snowfall, accumulating around 317cm annually from January through December. The snowiest month is December, with approximately 73cm. Winter travel should account for significant snow cover.
Wind
Johnstone Point 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 December, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 4km/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 7km/h in winter, 6km/h in spring, 4km/h in summer, 7km/h in autumn.
Seasons
94 days until Autumn
It is currently summer in Johnstone Point Airport, which began on June 21, 2026. Johnstone Point 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 1°C. Autumn is next, beginning on September 23, 2026 — 94 days from now.
Spring
Temperatures range from 1 to 8°C. Rainfall is heavy, totalling around 575mm across the season with a monthly average of 192mm. Winds are generally light, averaging 6km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 10 to 15°C. Rainfall is heavy, totalling around 595mm across the season with a monthly average of 198mm. Winds are generally light, averaging 4km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 4 to 12°C. Rainfall is heavy, totalling around 962mm across the season with a monthly average of 321mm. Expect around 28cm of snow accumulation during this period. Winds are generally light, averaging 7km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 1 to 5°C. Rainfall is heavy, totalling around 779mm across the season with a monthly average of 260mm. Expect around 209cm of snow accumulation during this period. Winds are generally light, averaging 7km/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 Johnstone Point 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.
