Climate Insights for Irvine

The climate in Irvine is cool. The average annual temperature is 10°C and approximately 1706mm of precipitation falls per year. Irvine receives a notable amount of rainfall throughout the year, including during its driest month. Irvine is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are February, January, March, when temperatures can drop to 5°C. Light snow can occur between January and December.

Irvine sees moderate temperature variation throughout the year, ranging from 5°C to 16°C. August is the warmest month, though highs remain moderate at 16°C with a mean of 15°C. February is the coolest month, with minimum temperatures around 5°C and an average of 6°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between April and May, with a 3°C shift in average temperatures.

Irvine is a fairly wet location, receiving approximately 1706mm of precipitation annually, which averages out to around 142mm per month. The wettest month is December, averaging 199mm of rainfall. October and January also tend to see above-average precipitation. The driest month is April, with just 73mm. That's 126mm less than December, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Light snowfall can occur between January and December, totalling around 19cm annually. January is the snowiest month with approximately 8cm.

Irvine is moderately windy, with an average annual wind speed of 22km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 28km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in May, with average winds dropping to 17km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 11km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 26km/h in winter, 20km/h in spring, 18km/h in summer, 23km/h in autumn.

It is currently summer in Irvine, which began on June 21, 2026. Irvine is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 16°C, while the coldest stretch bottoms out in February near 5°C. Autumn is next, beginning on September 23, 2026 (7 days from now).

The table below shows monthly climate averages for Irvine based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.