Williams Lake (BC) Temperature by Month
Williams Lake in British Columbia, Canada sees significant seasonal temperature differences, with daytime highs between -2°C (28°F) in January and 25°C (77°F) in July, averaging 12°C (54°F) annually. Explore the full monthly breakdown below.
Williams Lake Monthly Temperatures
Visitors to Williams Lake will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 10°C (50°F) in July to -11°C (12°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Williams Lake by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak.
The chart below shows the average temperature throughout the year:
Temperature: Williams Lake 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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Williams Lake vs World: Temperature Compared
Williams Lake's average annual maximum temperature is 12°C (54°F). To put that in context, here's how it compares to a few well-known destinations:
Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.
Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.
Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid 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.
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 Williams Lake's weather — including monthly rainfall, sunshine hours, and humidity — visit our Williams Lake climate page.
