Climate Insights for Riehen

The climate in Riehen is temperate. The average annual temperature is 11°C and approximately 1,186 mm of precipitation falls per year. Riehen receives a notable amount of rainfall throughout the year, including during its driest month. Riehen 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, December, February, when temperatures can drop to -1°C. Snowfall occurs from January to December, with around 69cm accumulating over the season.The climate in Riehen is temperate. The average annual temperature is 52°F and approximately 46.7 in of precipitation falls per year. Riehen receives a notable amount of rainfall throughout the year, including during its driest month. Riehen 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, December, February, when temperatures can drop to 31°F. Snowfall occurs from January to December, with around 27in accumulating over the season.

Temperatures in Riehen vary considerably across the year, with a 27°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 26°C and the mean temperature sits around 20°C. The coldest month is January, when overnight lows fall to -1°C and the daily average is 2°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.Temperatures in Riehen vary considerably across the year, with a 47°F difference between the coldest and warmest months. The warmest month is July, when average highs reach 78°F and the mean temperature sits around 69°F. The coldest month is January, when overnight lows fall to 31°F and the daily average is 36°F. On average, daily temperatures fluctuate by about 15°F between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 10°F shift in average temperatures.

Riehen is a moderately rainy area, receiving approximately 1,186 mm of precipitation annually, which averages out to around 99 mm per month. The wettest month is May, averaging 129 mm of rainfall. June and July also tend to see above-average precipitation. The driest month is February, with just 70 mm. That's 58 mm less than May, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Snowfall is a regular feature from January to December, with around 69cm accumulating over the season. January typically sees the most snow at around 22cm.Riehen is a moderately rainy area, receiving approximately 46.7 in of precipitation annually, which averages out to around 3.9 in per month. The wettest month is May, averaging 5.1 in of rainfall. June and July also tend to see above-average precipitation. The driest month is February, with just 2.8 in. That's 2.3 in less than May, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Snowfall is a regular feature from January to December, with around 27in accumulating over the season. January typically sees the most snow at around 9in.

Riehen 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 February, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 8km/h in winter, 8km/h in spring, 6km/h in summer, 7km/h in autumn.Riehen is mildly breezy, with an average annual wind speed of 4mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is February, averaging 5mph, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 4mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1mph gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 5mph in winter, 5mph in spring, 4mph in summer, 4mph in autumn.

The best time to visit Riehen is during September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 87 mm per month. By contrast, July can be uncomfortably hot with highs reaching 26°C, while January is the coldest period with lows dropping to -1°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.The best time to visit Riehen is during September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 60°F with modest rainfall averaging 3.4 in per month. By contrast, July can be uncomfortably hot with highs reaching 78°F, while January is the coldest period with lows dropping to 31°F. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Riehen 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.The table below shows monthly climate averages for Riehen based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in inches (in) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.