Climate Insights for Obernai

The climate in Obernai is temperate. The average annual temperature is 10°C and approximately 1155mm of precipitation falls per year. June is the wettest month, receiving around 194mm of rainfall. Obernai 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, March, when temperatures can drop to -1°C. Snowfall occurs from January to November, with around 70cm accumulating over the season.

Temperatures in Obernai vary considerably across the year, with a 26°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 25°C and the mean temperature sits around 20°C. The coldest month is December, when overnight lows fall to -1°C and the daily average is 1°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between September and October, with a 9°C shift in average temperatures.

Obernai is a moderately rainy area, receiving approximately 1155mm of precipitation annually, which averages out to around 96mm per month. The wettest month is June, averaging 194mm of rainfall. April and January also tend to see above-average precipitation. The driest month is December, with just 6mm. That's 188mm less than June, 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. Snowfall is a regular feature from January to November, with around 70cm accumulating over the season. February typically sees the most snow at around 23cm.

Obernai is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 2km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.

It is currently summer in Obernai, which began on June 21, 2026. Obernai 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 25°C, while the coldest stretch bottoms out in December near -1°C. Autumn is next, beginning on September 23, 2026 — 52 days from now.

The best time to visit Obernai is during July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 62mm per month. By contrast, December 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 Obernai 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.