Rockport (ON) Temperature by Month

The average annual maximum temperature in Rockport, Ontario, Canada is 13°C (55°F), with daytime highs ranging from -2°C (28°F) in February to 26°C (79°F) in July. This page covers monthly averages, day-night differences, and how Rockport compares to cities worldwide.

In Rockport, temperatures differ significantly between summer and winter months. Nighttime lows reflect this range, dropping from 16°C (61°F) in July to -11°C (12°F) in February.

The chart below illustrates the average maximum day and minimum night temperatures in Rockport by month:

The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak. July, the city's warmest month, averages 280 hours of sunshine.

The chart below shows the average temperature throughout the year:

Rockport's average annual maximum temperature is 13°C (55°F). To put that in context, here's how it compares to a few well-known destinations:

Lisbon, Portugal averages 21°C (70°F) annually, warm summers, mild winters, and rain mainly in the cooler months.

Reykjavík, Iceland averages 9°C (48°F) a year, mild summers by Icelandic standards, but cold winters and frequent wind.

Beijing, China averages 20°C (68°F) annually, but with big seasonal swings, very cold winters and hot summers.

Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.

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.

Seasonal temperature shifts influence more than just how warm it feels, they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.

Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Rockport this rarely lasts long on the ground.

For more on Rockport's weather, including monthly rainfall, sunshine hours, and humidity, visit our Rockport climate page.