Climate Insights for Ajax

The climate in Ajax is cool. The average annual temperature is 10°C and approximately 880mm of precipitation falls per year. March is the wettest month, receiving around 131mm of rainfall. Ajax 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, December, when temperatures can drop to -3°C. Snowfall occurs from January to December, with around 168cm accumulating over the season.

Temperatures in Ajax vary considerably across the year, with a 28°C difference between the coldest and warmest months. August is the warmest month, though highs remain moderate at 25°C with a mean of 23°C. The coldest month is February, when overnight lows fall to -3°C and the daily average is -1°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows. The sharpest temperature change occurs between May and June, with a 7°C shift in average temperatures.

Ajax is a moderately rainy area, receiving approximately 880mm of precipitation annually, which averages out to around 73mm per month. The wettest month is March, averaging 131mm of rainfall. December and October also tend to see above-average precipitation. The driest month is June, with just 26mm. That's 105mm less than March, 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 168cm accumulating over the season. December typically sees the most snow at around 56cm.

Ajax 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 May, 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 8km/h in winter, 5km/h in spring, 4km/h in summer, 6km/h in autumn.

It is currently summer in Ajax, which began on June 21, 2026. Ajax 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 25°C, while the coldest stretch bottoms out in February near -3°C. Autumn is next, beginning on September 23, 2026 — 52 days from now.

The best time to visit Ajax is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 47mm 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 Ajax 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.