Climate Overview
The climate in Aouste-sur-Sye is temperate. The average annual temperature is 13°C and approximately 819mm of precipitation falls per year. Aouste-sur-Sye receives a notable amount of rainfall throughout the year, including during its driest month. Aouste-sur-Sye is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, December, when temperatures can drop to 1°C. Light snow can occur between January and December.
Temperature
Temperatures in Aouste-sur-Sye vary considerably across the year, with a 28°C difference between the coldest and warmest months. The warmest month is July, 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 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 5°C shift in average temperatures.
Precipitation
Aouste-sur-Sye is a moderately rainy area, receiving approximately 819mm of precipitation annually, which averages out to around 68mm per month. The wettest month is October, averaging 105mm of rainfall. November and May also tend to see above-average precipitation. The driest month is July, with just 30mm. That's 74mm less than October, 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 26cm annually. January is the snowiest month with approximately 7cm.
Wind
Aouste-sur-Sye is mildly breezy, with an average annual wind speed of 16km/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 17km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 14km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in Aouste-sur-Sye, which began on March 20, 2026. Aouste-sur-Sye 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 July at around 29°C, while the coldest stretch bottoms out in January near 1°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 4 to 20°C. Precipitation is moderate at around 225mm for the season, averaging 75mm per month. Winds are moderate at around 17km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 15 to 29°C. Rainfall is relatively light, with around 144mm over the season and a monthly average of 48mm. Winds are moderate at around 16km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 5 to 23°C. Precipitation is moderate at around 269mm for the season, averaging 90mm per month. Expect around 6cm of snow accumulation during this period. Winds are moderate at around 15km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 1 to 10°C. Precipitation is moderate at around 181mm for the season, averaging 60mm per month. Expect around 16cm of snow accumulation during this period. Winds are moderate at around 16km/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 Aouste-sur-Sye is during May, June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 60mm 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.
Monthly Climate Data
The table below shows monthly climate averages for Aouste-sur-Sye 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.
