Last updated: August 22, 2025
In May, the average temperature in Gromiljak, Bosnia and Herzegovina hovers around 14°C (57°F). Expect a range from a chilly 1°C (35°F) to a warm 28°C (82°F). During this month, precipitation amounts to 98 mm (3.9 in), typically spread across 17 days, and the average humidity sits at 74%. Embrace the climate, prepared for both cool breezes and warm spells!
In May in Gromiljak, the average temperature is 14°C (57°F), with maximums reaching 28°C (82°F) and minimums as low as 1°C (35°F). This diverse temperature range makes it a great time to travel, whether you prefer warm days or cool evenings.
In Gromiljak in May, the precipitation amount is 98 mm (3.9 in) over a span of 17 days.
In Gromiljak in May, humidity is 74%. With an average temperature of 14°C (57°F), this humidity feels like a warm, damp blanket wrapping around you, making it slightly uncomfortable for traveling, as you may find yourself quickly sweating and in need of frequent breaks to cool down.
In Gromiljak in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Gromiljak.
UV Risk Categories
Weather in Gromiljak varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Gromiljak, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (31°F) | 74 mm (2.9 inches) | 88% | low |
| February Weather | 3°C (38°F) | 88 mm (3.5 inches) | 82% | moderate |
| March Weather | 5°C (42°F) | 92 mm (3.6 inches) | 79% | high |
| April Weather | 10°C (49°F) | 89 mm (3.5 inches) | 75% | high |
| May Weather | 14°C (57°F) | 98 mm (3.9 inches) | 74% | very high |
| June Weather | 18°C (65°F) | 88 mm (3.5 inches) | 66% | very high |
| July Weather | 20°C (68°F) | 88 mm (3.4 inches) | 59% | very high |
| August Weather | 21°C (70°F) | 47 mm (1.9 inches) | 53% | very high |
| September Weather | 16°C (61°F) | 44 mm (1.7 inches) | 65% | high |
| October Weather | 11°C (52°F) | 83 mm (3.3 inches) | 78% | moderate |
| November Weather | 7°C (45°F) | 87 mm (3.4 inches) | 85% | moderate |
| December Weather | 2°C (37°F) | 142 mm (5.6 inches) | 86% | low |