Climate Insights for Gradačac

The climate in Gradačac is temperate. The average annual temperature is 12°C and approximately 947mm of precipitation falls per year. Gradačac receives a notable amount of rainfall throughout the year, including during its driest month. Gradačac 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, December, February, when temperatures can drop to -4°C. Snowfall occurs from January to December, with around 113cm accumulating over the season.

Temperatures in Gradačac vary considerably across the year, with a 32°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 28°C and the mean temperature sits around 22°C. The coldest month is January, when overnight lows fall to -4°C and the daily average is 0°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between March and April, with a 5°C shift in average temperatures.

Gradačac is a moderately rainy area, receiving approximately 947mm of precipitation annually, which averages out to around 79mm per month. The wettest month is June, averaging 116mm of rainfall. May and July also tend to see above-average precipitation. The driest month is September, with just 57mm. That's 59mm less than June, 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 113cm accumulating over the season. January typically sees the most snow at around 39cm.

Gradačac 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 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.

It is currently summer in Gradačac, which began on June 21, 2026. Gradačac 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 28°C, while the coldest stretch bottoms out in January near -4°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.

The best time to visit Gradačac is during 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 73mm 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 Gradačac 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.