Saint Columb Major Temperature by Month

Saint Columb Major in Cornwall, United Kingdom sees moderate seasonal temperature shifts, with daytime highs between 10°C (50°F) in February and 20°C (68°F) in August, averaging 15°C (59°F) annually. Explore the full monthly breakdown below.

The weather in Saint Columb Major changes moderately throughout the year, offering enough variation to appreciate each season. Nights are cooler, with lows ranging from 14°C (57°F) to 5°C (41°F).

The chart below illustrates the average maximum day and minimum night temperatures in Saint Columb Major by month:

The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. August, the city's warmest month, gets 202 hours of sunshine.

The chart below shows the average temperature throughout the year:

Saint Columb Major's average annual maximum temperature is 15°C (59°F). To put that in context, here's how it compares to a few well-known destinations:

Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.

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.

Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.

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 Saint Columb Major this rarely lasts long on the ground.

For more on Saint Columb Major's weather, including monthly rainfall, sunshine hours, and humidity, visit our Saint Columb Major climate page.