Climate Insights for Ambérieu-en-Bugey

The climate in Ambérieu-en-Bugey is temperate. The average annual temperature is 13°C and approximately 1051mm of precipitation falls per year. Ambérieu-en-Bugey receives a notable amount of rainfall throughout the year, including during its driest month. Ambérieu-en-Bugey 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 1°C. Light snow can occur between January and December.

Temperatures in Ambérieu-en-Bugey vary considerably across the year, with a 28°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 29°C and the mean temperature sits around 23°C. January is the coolest month, with minimum temperatures around 1°C and an average of 4°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 6°C shift in average temperatures.

Ambérieu-en-Bugey is a moderately rainy area, receiving approximately 1051mm of precipitation annually, which averages out to around 88mm per month. The wettest month is December, averaging 132mm of rainfall. November and January also tend to see above-average precipitation. The driest month is July, with just 44mm. That's 87mm 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 28cm annually. January is the snowiest month with approximately 9cm.

Ambérieu-en-Bugey is relatively calm, with an average annual wind speed of 10km/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 11km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 9km/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.

It is currently autumn in Ambérieu-en-Bugey, which began on September 23, 2026. Ambérieu-en-Bugey 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 29°C, while the coldest stretch bottoms out in January near 1°C. Winter is next, beginning on December 21, 2026 (87 days from now).

The best time to visit Ambérieu-en-Bugey is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 64mm per month. By contrast, January can be quite cold with temperatures dropping to 1°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Ambérieu-en-Bugey 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.