Carnelian Bay (CA) Temperature by Month
Carnelian Bay, California, United States of America has an average annual maximum temperature of 14°C (57°F), ranging from 5°C (41°F) in December to 26°C (79°F) in July. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Carnelian Bay Monthly Temperatures
Visitors to Carnelian Bay can expect significant temperature changes throughout the year. Nighttime temperatures also vary widely, ranging from 8°C (46°F) in July to -7°C (19°F) in December.
The chart below illustrates the average maximum day and minimum night temperatures in Carnelian Bay 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 424 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Carnelian Bay 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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Carnelian Bay vs World: Temperature Compared
Carnelian Bay'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:
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.
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 Carnelian Bay?
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 Carnelian Bay, December is the coolest month, with average highs of 5°C (41°F) and humidity around 62% — considered high. In July, the warmest month, temperatures average 26°C (79°F) with 36% humidity — conditions that feel low. 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 Carnelian Bay this rarely lasts long on the ground.
For more on Carnelian Bay's weather — including monthly rainfall, sunshine hours, and humidity — visit our Carnelian Bay climate page.
