Leamington (ON) Temperature by Month

The average annual maximum temperature in Leamington, Ontario, Canada is 14°C (57°F), with daytime highs ranging from 0°C (32°F) in January to 27°C (81°F) in July. This page covers monthly averages, day-night differences, and how Leamington compares to cities worldwide.

In Leamington, temperatures differ significantly between summer and winter months. Nighttime lows reflect this range, dropping from 22°C (72°F) in July to -6°C (21°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Leamington 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 293 hours of sunshine.

The chart below shows the average temperature throughout the year:

Leamington'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.

Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.

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.

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 Leamington, January is the coolest month, with average highs of 0°C (32°F) and humidity around 68%, considered high. In July, the warmest month, temperatures average 27°C (81°F) with 53% humidity, conditions that feel moderate. 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.

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 Leamington's weather, including monthly rainfall, sunshine hours, and humidity, visit our Leamington climate page.