Postojna

What is the climate like in Postojna?

The best time to visit Postojna is typically August, the year's most comfortable month (6.5/10). Postojna is warmest in July, when daily highs average 78°F (26°C), and coolest in January, when lows fall to about 28°F (-2°C). The wettest month is typically September and the driest is April; the year sees roughly 66 in (1683 mm) of precipitation.

• Best time to visitAugust — the year's comfort peak (6.5/10)
• Warmest monthJuly — average high 78°F (26°C)
• Coolest monthJanuary — average low 28°F (-2°C)
• Wettest monthSeptember (8.0 in (202 mm))
• Driest monthApril (4.3 in (110 mm))
• Annual precipitation66 in (1683 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromPostojna, 3 km away (1962-2023)