Tweed (ON) Temperature by Month
Tweed in Ontario, Canada sees significant seasonal temperature differences, with daytime highs between -2°C (28°F) in January and 28°C (82°F) in July, averaging 14°C (57°F) annually. Explore the full monthly breakdown below.
Tweed Monthly Temperatures
Depending on the time of the year, temperatures range from warm to very cold in Tweed. Nighttime lows follow the same pattern, ranging from 15°C (59°F) to -13°C (9°F).
The chart below illustrates the average maximum day and minimum night temperatures in Tweed by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. July, the warmest month, averages 280 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Tweed 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
warm
pleasant
moderate
cold
very cold
Tweed vs World: Temperature Compared
Tweed's average annual maximum temperature is 14°C (57°F). To put that in context, here's how it compares to a few well-known destinations:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
Chicago, USA averages 15°C (59°F) annually — known for extreme seasonal swings, from bitterly cold winters to warm summers.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
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 Tweed this rarely lasts long on the ground.
For more on Tweed's weather — including monthly rainfall, sunshine hours, and humidity — visit our Tweed climate page.
