Climate Insights for Covina

The climate in Covina is warm and mild. The average annual temperature is 18°C and approximately 356mm of precipitation falls per year. January is the wettest month, receiving around 86mm of rainfall. Covina 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 December, January, February, when temperatures can drop to 8°C.

Temperatures in Covina vary considerably across the year, with a 23°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 31°C and the mean temperature sits around 24°C. December is the coolest month, with minimum temperatures around 8°C and an average of 13°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 4°C shift in average temperatures.

Covina is a quite dry location, receiving approximately 356mm of precipitation annually, which averages out to around 30mm per month. The wettest month is January, averaging 86mm of rainfall. March and February also tend to see above-average precipitation. The driest month is June, with just 2mm. That's 84mm less than January, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Covina is mildly breezy, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 15km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 11km/h in winter, 14km/h in spring, 13km/h in summer, 12km/h in autumn.

It is currently spring in Covina, which began on March 20, 2026. Covina 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 31°C, while the coldest stretch bottoms out in December near 8°C. Summer is next, beginning on June 21, 2026 — 88 days from now.

The best time to visit Covina is during April, May, June, July, August, September, October and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 9mm per month. By contrast, December can be quite cold with temperatures dropping to 8°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Covina 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. 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.