Idrija Weather & Climate: Best Time to Visit
Idrija, Slovenia, sees big temperature differences between seasons, with July peaking at 26°C (79°F) and January dropping to 5°C (41°F).
Rain/snowfall is high, totalling around 1727 mm (68 in) per year. November is the wettest month and January the driest. The city also experiences a distinct rainy season from September to November. The most sunshine falls in July, with an average of 9.7 hours of daily sunshine.
Monthly Temperature in Idrija
Visitors to Idrija can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 26°C (79°F) in July, the warmest time of the year, to a chilly 5°C (41°F) during cooler months like January.
At night, you can expect temperatures ranging from 15°C (59°F) in July to around -2°C (28°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Idrija
Idrija is known for its substantial rain/snowfall, with annual precipitation reaching 1727 mm (68 in). While rainfall varies throughout the year, each season offers its own charm. November brings wetter days averaging 188 mm (7.4 in) of precipitation, spread over 14 rainy days.
In contrast, the driest month January experiences a drier climate, with about 95 mm (3.7 in) of snow/rainfall spread across 13 snowy/rainy days. For more details, please visit our Idrija Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Idrija
Seasonal changes in sunshine hours are quite dramatic in Idrija. While July receives considerable daily sunshine with up to 9.7 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.9 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Idrija by Month
The relative humidity is high throughout the year in Idrija.
The city experiences its highest humidity in December, reaching 87%. In July, the humidity drops to its lowest level at 67%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Idrija 3-Day Forecast
Check the conditions for any month of the year.
Best Time to Visit Idrija
During May, July and August, Idrija experiences its most favorable weather, with temperatures between 20°C (68°F) and 26°C (79°F). These mild conditions make it an excellent time for a visit.The weather does bring rainfall during this period, between 131 mm (5.2 in) and 149 mm (5.9 in).
Plan accordingly for September, October and November, when conditions bring the heaviest precipitation. Seeking the perfect travel destination for this year? We've created a tool that suggests locations matching your desired weather. Let our weather planner guide your travel decisions.
