Climate Overview
The climate in Certaldo is temperate. The average annual temperature is 15°C and approximately 973mm of precipitation falls per year. Certaldo receives a notable amount of rainfall throughout the year, including during its driest month. Certaldo is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, December, February, when temperatures can drop to 2°C.
Temperature
Temperatures in Certaldo vary considerably across the year, with a 29°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 25°C. January is the coolest month, with minimum temperatures around 2°C and an average of 6°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between May and June, with a 5°C shift in average temperatures.
Precipitation
Certaldo is a moderately rainy area, receiving approximately 973mm of precipitation annually, which averages out to around 81mm per month. The wettest month is November, averaging 126mm of rainfall. October and September also tend to see above-average precipitation. The driest month is July, with just 31mm. That's 95mm less than November, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.
Wind
Certaldo is relatively calm, with an average annual wind speed of 7km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 7km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.
Seasons
8 days until Autumn
It is currently summer in Certaldo, which began on June 21, 2026. Certaldo 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 January near 2°C. Autumn is next, beginning on September 23, 2026 (8 days from now).
Spring
Temperatures range from 5 to 22°C. Precipitation is moderate at around 252mm for the season, averaging 84mm per month. Winds are generally light, averaging 8km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 16 to 31°C. Rainfall is relatively light, with around 126mm over the season and a monthly average of 42mm. Winds are generally light, averaging 7km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.
Autumn
Temperatures range from 7 to 26°C. Rainfall is heavy, totalling around 344mm across the season with a monthly average of 115mm. Winds are generally light, averaging 7km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 2 to 12°C. Precipitation is moderate at around 250mm for the season, averaging 83mm per month. Winds are generally light, averaging 8km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Certaldo is during May, June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 56mm per month. By contrast, January can be quite cold with temperatures dropping to 2°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.
Monthly Climate Data
The table below shows monthly climate averages for Certaldo 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.