Last updated: August 22, 2025
In April, the average temperature in Banja Luka, Bosnia and Herzegovina is a comfortable 11°C (53°F). Visitors can expect a wide temperature range, with a minimum dipping to -6°C (21°F) and a maximum soaring to 29°C (85°F). The area experiences an average precipitation of 86 mm (3.4 in) over approximately 11 days, complemented by an average humidity level of 72%. Whether you're planning an outdoor adventure or a cozy getaway, be prepared for a mix of weather conditions!
In April in Banja Luka, the average temperature is 11°C (53°F), with maximums reaching 29°C (85°F) and minimums dropping as low as -6°C (21°F). Whether you're looking to enjoy mild days or prepare for chilly evenings, this month's varied temperatures make it essential to pack accordingly for your travels.
In Banja Luka in April, the precipitation amount is 86 mm (3.4 in), spread over 11 days.
In Banja Luka in April, humidity is 72%. With an average temperature of 11°C (53°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities slightly uncomfortable and the air heavy, which can dampen the enjoyment of sightseeing and exploring.
In Banja Luka in April, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Banja Luka.
UV Risk Categories
Weather in Banja Luka varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Banja Luka, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (34°F) | 65 mm (2.6 inches) | 89% | low |
| February Weather | 4°C (40°F) | 74 mm (2.9 inches) | 83% | moderate |
| March Weather | 7°C (45°F) | 70 mm (2.8 inches) | 75% | moderate |
| April Weather | 11°C (53°F) | 86 mm (3.4 inches) | 72% | high |
| May Weather | 16°C (61°F) | 127 mm (5.0 inches) | 70% | very high |
| June Weather | 20°C (69°F) | 103 mm (4.0 inches) | 69% | very high |
| July Weather | 22°C (71°F) | 100 mm (3.9 inches) | 64% | very high |
| August Weather | 22°C (72°F) | 77 mm (3.0 inches) | 51% | very high |
| September Weather | 17°C (63°F) | 67 mm (2.6 inches) | 62% | high |
| October Weather | 12°C (54°F) | 94 mm (3.7 inches) | 81% | moderate |
| November Weather | 7°C (46°F) | 75 mm (3.0 inches) | 87% | moderate |
| December Weather | 4°C (39°F) | 105 mm (4.1 inches) | 88% | low |