Climate Insights for Gero

The climate in Gero is temperate. The average annual temperature is 12°C and approximately 2506mm of precipitation falls per year. Gero receives a notable amount of rainfall throughout the year, including during its driest month. Gero 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 January, February, December, when temperatures can drop to -2°C. Snowfall occurs from January to December, with around 85cm accumulating over the season.

Temperatures in Gero vary considerably across the year, with a 31°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 24°C. The coldest month is January, when overnight lows fall to -2°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 6°C shift in average temperatures.

Gero is a very wet location, receiving approximately 2506mm of precipitation annually, which averages out to around 209mm per month. The wettest month is July, averaging 403mm of rainfall. June and September also tend to see above-average precipitation. The driest month is January, with just 96mm. That's 307mm less than July, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Snowfall is a regular feature from January to December, with around 85cm accumulating over the season. January typically sees the most snow at around 28cm.

Gero is relatively calm, with an average annual wind speed of 11km/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 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 10km/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. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 12km/h in winter, 12km/h in spring, 10km/h in summer, 10km/h in autumn.

It is currently spring in Gero, which began on March 20, 2026. Gero 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 -2°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The table below shows monthly climate averages for Gero 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.