Climate Insights for Clermont

The climate in Clermont is warm and mild. The average annual temperature is 23°C and approximately 465mm of precipitation falls per year. March is the wettest month, receiving around 108mm of rainfall. Clermont is in the Southern Hemisphere. The seasons are reversed — summer runs from December to February, while winter falls between June and August. The summer months are: December, January, November. The coldest months are July, August, June, when temperatures can drop to 9°C.

Temperatures in Clermont vary considerably across the year, with a 26°C difference between the coldest and warmest months. December is the hottest month, with daytime highs reaching 35°C and an average of 29°C. July is the coolest month, with minimum temperatures around 9°C and an average of 16°C. On average, daily temperatures fluctuate by about 14°C between overnight lows and afternoon highs. The sharpest temperature change occurs between August and September, with a 4°C shift in average temperatures.

Clermont is a relatively dry area, receiving approximately 465mm of precipitation annually, which averages out to around 39mm per month. The wettest month is March, averaging 108mm of rainfall. February and January also tend to see above-average precipitation. The driest month is August, with just 6mm. That's 103mm less than March, 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.

Clermont is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

It is currently winter in Clermont, which began on June 21, 2026. Clermont is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in December at around 35°C, while the coldest stretch bottoms out in July near 9°C. Spring is next, beginning on September 23, 2026 — 89 days from now.

The best time to visit Clermont is during April, May, June, July, August, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 19mm per month. By contrast, December can be uncomfortably hot with temperatures reaching 35°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Clermont 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.