Climate Insights for Sliač Airport

The climate in Sliač Airport is cool. The average annual temperature is 9°C and approximately 877mm of precipitation falls per year. Sliač Airport receives a notable amount of rainfall throughout the year, including during its driest month. Sliač Airport 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, February, December, when temperatures can drop to -4°C. Snowfall occurs from January to December, with around 71cm accumulating over the season.

Temperatures in Sliač Airport vary considerably across the year, with a 29°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 19°C. The coldest month is January, when overnight lows fall to -4°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 September and October, with a 5°C shift in average temperatures.

Sliač Airport is a moderately rainy area, receiving approximately 877mm of precipitation annually, which averages out to around 73mm per month. The wettest month is May, averaging 100mm of rainfall. June and July also tend to see above-average precipitation. The driest month is March, with just 49mm. That's 51mm 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 71cm accumulating over the season. January typically sees the most snow at around 23cm.

Sliač Airport is relatively calm, with an average annual wind speed of 12km/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 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, 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 4km/h between the calmest and windiest months.

It is currently spring in Sliač Airport, which began on March 20, 2026. Sliač Airport 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 January near -4°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Sliač Airport is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 93mm per month. By contrast, January can be quite cold with temperatures dropping to -4°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 table below shows monthly climate averages for Sliač Airport 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.