East Irvine Temperature by Month

East Irvine, United States of America has an average annual maximum temperature of 25°C (77°F), with moderate seasonal shifts ranging from 20°C (68°F) in December to 30°C (86°F) in August. Below you'll find a full monthly breakdown and a comparison with cities worldwide.

The moderate changes in the climate in East Irvine ensure gradual weather shifts through each season. At night, temperatures drop to between 17°C (63°F) and 8°C (46°F) depending on the time of year.

The chart below illustrates the average maximum day and minimum night temperatures in East Irvine by month:

From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. August, the warmest month, averages 351 hours of sunshine.

The chart below shows the average temperature throughout the year:

East Irvine's average annual maximum temperature is 25°C (77°F). To put that in context, here's how it compares to a few well-known destinations:

Lisbon, Portugal averages 21°C (70°F) annually, warm summers, mild winters, and rain mainly in the cooler months.

Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.

Beijing, China averages 20°C (68°F) annually, but with big seasonal swings, very cold winters and hot summers.

Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.

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