Welland (ON) Temperature by Month
Welland, Ontario, Canada has an average annual maximum temperature of 13°C (55°F), ranging from 1°C (34°F) in February to 26°C (79°F) in July. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Welland Monthly Temperatures
The weather in Welland experiences significant differences between warm and cold seasons, with big shifts in temperature. At night, minimum temperatures range from 20°C (68°F) in July to -6°C (21°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Welland 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 307 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Welland 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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Welland vs World: Temperature Compared
Welland'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:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.
Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
What Does the Temperature Feel Like in Welland?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.
In Welland, February is the coolest month, with average highs of 1°C (34°F) and humidity around 75% — considered high. In July, the warmest month, temperatures average 26°C (79°F) with 68% humidity — conditions that feel high. For a full picture, see our humidity page.
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 Welland this rarely lasts long on the ground.
For more on Welland's weather — including monthly rainfall, sunshine hours, and humidity — visit our Welland climate page.
