Saint-Jean-Port-Joli (QC) Temperature by Month
The average annual maximum temperature in Saint-Jean-Port-Joli, Quebec, Canada is 9°C (48°F), with daytime highs ranging from -5°C (23°F) in January to 23°C (73°F) in July. This page covers monthly averages, day-night differences, and how Saint-Jean-Port-Joli compares to cities worldwide.
Saint-Jean-Port-Joli Monthly Temperatures
The climate in Saint-Jean-Port-Joli is known for significant temperature differences throughout the year. At night, this contrast is just as clear, with lows ranging from 15°C (59°F) in July to -14°C (7°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Saint-Jean-Port-Joli by month:
Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM.
The chart below shows the average temperature throughout the year:
Temperature: Saint-Jean-Port-Joli 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.
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Saint-Jean-Port-Joli vs World: Temperature Compared
Saint-Jean-Port-Joli's average annual maximum temperature is 9°C (48°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.
Glasgow, Scotland averages 13°C (55°F) a year — mild but often grey, with cold winters and rarely hot summers.
Chicago, USA averages 15°C (59°F) annually — known for extreme seasonal swings, from bitterly cold winters to warm summers.
Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.
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 Saint-Jean-Port-Joli's weather — including monthly rainfall, sunshine hours, and humidity — visit our Saint-Jean-Port-Joli climate page.
