Moncton (NB) Temperature by Month
Moncton, New Brunswick, Canada has an average annual maximum temperature of 12°C (54°F), ranging from -2°C (28°F) in January to 25°C (77°F) in July. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Moncton Monthly Temperatures
In Moncton, temperatures can shift dramatically between warm in summer and very cold in winter. Nights follow the same pattern, with lows ranging from 14°C (57°F) in July to -13°C (9°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Moncton by month:
Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating. July, the warmest month of the year, receives 256 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in June
Historical Moncton Temperatures: 1976-2026
Browse day-by-day temperature records for Moncton spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Moncton vs Canada
The map below shows the annual temperature across Canada. You can also select individual months if you want to compare a specific time of year.
very warm
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pleasant
moderate
cold
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Moncton vs World: Temperature Compared
Moncton's average annual maximum temperature is 12°C (54°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.
San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation — summers are often cool and foggy, winters mild.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Moncton's weather — including monthly rainfall, sunshine hours, and humidity — visit our Moncton climate page.
