Climate Insights for Moncton

The climate in Moncton is cool. The average annual temperature is 7°C and approximately 1114mm of precipitation falls per year. Moncton receives a notable amount of rainfall throughout the year, including during its driest month. Moncton is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are February, January, December, when temperatures can drop to -11°C. Moncton experiences heavy snowfall, typically from January through December.

Moncton has a wide annual temperature range, spanning 36°C from the coldest to warmest months. July is the warmest month, though highs remain moderate at 25°C with a mean of 20°C. The coldest month is February, when overnight lows fall to -11°C and the daily average is -6°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 6°C shift in average temperatures.

Moncton is a moderately rainy area, receiving approximately 1114mm of precipitation annually, which averages out to around 93mm per month. The wettest month is January, averaging 113mm of rainfall. November and December also tend to see above-average precipitation. The driest month is May, with just 74mm. That's 39mm less than January, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Moncton receives heavy snowfall, accumulating around 214cm annually from January through December. The snowiest month is January, with approximately 51cm. Winter travel should account for significant snow cover.

Moncton is mildly breezy, with an average annual wind speed of 19km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 21km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in August, with average winds dropping to 16km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 5km/h 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 21km/h in winter, 20km/h in spring, 17km/h in summer, 19km/h in autumn.

It is currently spring in Moncton, which began on March 20, 2026. Moncton 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 25°C, while the coldest stretch bottoms out in February near -11°C. Summer is next, beginning on June 21, 2026 — 88 days from now.

The best time to visit Moncton is during July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 85mm per month. By contrast, February can be quite cold with temperatures dropping to -11°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.

The table below shows monthly climate averages for Moncton 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.