Zagreb Weather in December
In December, Zagreb averages a high of 6°C (42°F) and a low of 1°C (33°F), from 53 years of daily records (1971–2025).
6°C
Average high
42°F
1°C
Average low
33°F
22°C
Record high
71°F · December 17, 1989
-16°C
Record low
4°F · December 20, 2009
What December Is Like in Zagreb
- 5 of the 10 warmest Decembers on record in Zagreb have come since 2010.
- December in Zagreb has become 1.5°C (2.8°F) warmer on average: the 2010–2024 average against 1970–1989.
- The December heat record, 22°C (71°F) on December 17, 1989, has stood for 36 years.
- On average, 13 nights in December drop below freezing.
At least 1 mm of rain falls on 25% of December days, and the month averages 62 mm in total.
Warmest: 1985 (9.6°C)Latest: 2023 (9.1°C)10-year averageLong-run average (5.6°C)
Look Up a Day in December
See the weather in Zagreb on any December date, year by year.
Source: NOAA GHCN-Daily, Zagreb-Gric (1971–2025). Averages cover 1971–2025. How we compute this