Big Bear City (CA) Temperature by Month
Big Bear City in California, United States of America sees significant seasonal temperature differences, with daytime highs between 8°C (46°F) in December and 26°C (79°F) in July, averaging 17°C (63°F) annually. Explore the full monthly breakdown below.
Big Bear City Monthly Temperatures
Visitors to Big Bear City can expect significant temperature changes throughout the year. Nighttime temperatures also vary widely, ranging from 9°C (48°F) in July to -6°C (21°F) in December.
The chart below illustrates the average maximum day and minimum night temperatures in Big Bear City 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: Big Bear City vs the United States of America
The map below shows the annual temperature across the United States of America. You can also select individual months if you want to compare a specific time of year.
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Big Bear City vs World: Temperature Compared
Big Bear City's average annual maximum temperature is 17°C (63°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.
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 Big Bear City's weather — including monthly rainfall, sunshine hours, and humidity — visit our Big Bear City climate page.
