Historical Weather in Ljubljana, Slovenia
See 55+ years of weather history for any date in Ljubljana going back to 1970.
Look Up a Specific Date
Monthly Climate Averages
Historical temperature and precipitation averages for Ljubljana, Slovenia, based on 55+ years of weather data.
Temperatures shown in Celsius with Fahrenheit in parentheses. Rainfall in millimetres, snowfall in centimetres.
Ljubljana Weather by Month
January in Ljubljana has become 2.5°C (4.4°F) warmer on average: the 2011–2025 average against 1970–1989.
February in Ljubljana has become 2.2°C (4.0°F) warmer on average: the 2011–2025 average against 1970–1989.
March in Ljubljana has become 2.2°C (4.0°F) warmer on average: the 2011–2025 average against 1970–1989.
Ljubljana's hottest April day on record is a recent one: 29°C (84°F) on April 7, 2024.
The coldest May reading, -1°C (30°F) on May 1, 1976, has not been matched in 49 years.
June in Ljubljana has become 3.5°C (6.2°F) warmer on average: the 2011–2025 average against 1970–1989.
July in Ljubljana has become 2.7°C (4.8°F) warmer on average: the 2011–2025 average against 1970–1989.
August in Ljubljana has become 2.8°C (5.1°F) warmer on average: the 2010–2024 average against 1970–1989.
5 of the 10 warmest Septembers on record in Ljubljana have come since 2010.
October in Ljubljana has become 2.0°C (3.5°F) warmer on average: the 2010–2024 average against 1970–1989.
November in Ljubljana has become 3.1°C (5.5°F) warmer on average: the 2010–2024 average against 1970–1989.
6 of the 10 warmest Decembers on record in Ljubljana have come since 2010.
Source: NOAA GHCN-Daily, Ljubljana Bezigrad (1971–2025). Records through 2025.