Last updated: August 22, 2025
In October, the average temperature in Kostajnica, Bosnia and Herzegovina hovers around 13°C (55°F), with a wide range between a chilly -2°C (29°F) and a warm 28°C (83°F). Prepare for some wet days, as 90 mm (3.5 in) of precipitation is expected over approximately 8 days. Don't forget to account for the relatively high humidity at about 81%, ensuring a distinctly humid atmosphere throughout the month.
In October in Kostajnica, the average temperature is 13°C (55°F), with maximums reaching up to 28°C (83°F) and minimums dropping to as low as -2°C (29°F). This range makes Kostajnica an ideal destination for travelers seeking a mix of mild and varied weather.
In Kostajnica in October, the precipitation amount is 90 mm (3.5 in) spread over 8 days, indicating a relatively wet period for the region.
In Kostajnica in October, humidity is 81%. With an average temperature of 13°C (55°F), this humidity feels like a damp blanket wrapping around you, making strolls outdoors feel heavy and slightly oppressive, which may be less than ideal for travelers looking to explore comfortably.
In Kostajnica in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Kostajnica.
UV Risk Categories
Weather in Kostajnica varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Kostajnica, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (35°F) | 51 mm (2.0 inches) | 89% | low |
| February Weather | 5°C (41°F) | 70 mm (2.7 inches) | 83% | moderate |
| March Weather | 8°C (46°F) | 59 mm (2.3 inches) | 75% | moderate |
| April Weather | 12°C (54°F) | 78 mm (3.1 inches) | 72% | high |
| May Weather | 16°C (62°F) | 123 mm (4.8 inches) | 70% | very high |
| June Weather | 22°C (71°F) | 85 mm (3.3 inches) | 69% | very high |
| July Weather | 23°C (73°F) | 87 mm (3.4 inches) | 64% | very high |
| August Weather | 23°C (73°F) | 82 mm (3.2 inches) | 51% | very high |
| September Weather | 18°C (64°F) | 96 mm (3.8 inches) | 62% | high |
| October Weather | 13°C (55°F) | 90 mm (3.5 inches) | 81% | moderate |
| November Weather | 8°C (46°F) | 86 mm (3.4 inches) | 87% | moderate |
| December Weather | 4°C (39°F) | 88 mm (3.5 inches) | 88% | low |