Climate Insights for Cortes Island Airport

The climate in Cortes Island Airport is temperate. The average annual temperature is 11°C and approximately 1995mm of precipitation falls per year. Cortes Island Airport receives a notable amount of rainfall throughout the year, including during its driest month. Cortes Island 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 February, December, January, when temperatures can drop to 3°C. Snowfall occurs from January to December, with around 63cm accumulating over the season.

Temperatures in Cortes Island Airport vary considerably across the year, with a 21°C difference between the coldest and warmest months. August is the warmest month, though highs remain moderate at 24°C with a mean of 19°C. February is the coolest month, with minimum temperatures around 3°C and an average of 4°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows. The sharpest temperature change occurs between April and May, with a 5°C shift in average temperatures.

Cortes Island Airport is a fairly wet location, receiving approximately 1995mm of precipitation annually, which averages out to around 166mm per month. The wettest month is November, averaging 324mm of rainfall. January and December also tend to see above-average precipitation. The driest month is July, with just 34mm. That's 289mm less than November, 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 63cm accumulating over the season. January typically sees the most snow at around 18cm.

Cortes Island Airport is mildly breezy, with an average annual wind speed of 13km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is November, averaging 15km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 14km/h in winter, 14km/h in spring, 12km/h in summer, 13km/h in autumn.

It is currently spring in Cortes Island Airport, which began on March 20, 2026. Cortes Island 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 24°C, while the coldest stretch bottoms out in February near 3°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Cortes Island Airport is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 57mm per month. By contrast, February can be quite cold with temperatures dropping to 3°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Cortes Island 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.