How warm is it in Rome in December?

Daytime highs averaged 13.6 °C, night-time lows 5.5 °C. The highest value of the past 10 years was 19.4 °C (31 Dec 2021), the lowest -1.8 °C (21 Dec 2017).

How often does it rain in Rome in December?

On average there were 11.2 rain days (at least 1 mm) with 84.7 mm of precipitation in total.

🇮🇹 Weather in Rome in December

This is what the weather in Rome (Lazio, Italy) was like in December in 2016–2025.

Key facts at a glance

Prevailing weather: Sunny

Avg. daytime high

13.6 °C

11.8 °C – 15.3 °C

Avg. night-time low

5.5 °C

3.5 °C – 8.1 °C

Avg. rain days in period

11.2

36 % of days · ≥ 1.0 mm

Avg. precipitation in period

84.7 mm

12.8 mm – 204 mm

Avg. cloud cover

49 %

This data source has no sunshine hours – average cloud cover shown instead.

Avg. sea temperature

–

No sea nearby – no sea temperature.

Extremes: Highest temperature 19.4 °C (31 Dec 2021) · Lowest temperature -1.8 °C (21 Dec 2017) · Avg. daily peak wind 18 km/h

Weather mix of all days

104Sunny
67Partly cloudy
27Cloudy
61Light rain
51Rain

Summary

On average 13.6 °C during the day and 5.5 °C at night.
On average 11.2 rain days (Rain day = at least 1.0 mm of precipitation) with 84.7 mm of precipitation in total.
Prevailing: Sunny.
Warmest year: 2022 (avg. 15.3 °C), coolest: 2017 (avg. 11.8 °C).
Wettest year: 2020 (204 mm), driest: 2016 (12.8 mm).
Extremes: 19.4 °C on 31 Dec 2021 and -1.8 °C on 21 Dec 2017.

Overall values from all 10 years. How is this calculated?

Temperatures per year

Average over your travel period

Precipitation & rain days

Year by year

2025
Avg. max14.7°Avg. min6.7°
Rain days
9 Rain days
Precipitation
60.0 mm
Avg. cloud cover
54 % cloudy
Sea temperature
–
Max 17.4 °C · Min 2.0 °C
2024
Avg. max13.3°Avg. min4.9°
Rain days
12 Rain days
Precipitation
78.4 mm
Avg. cloud cover
41 % cloudy
Sea temperature
–
Max 16.4 °C · Min 0.8 °C
2023
Avg. max14.2°Avg. min6.5°
Rain days
10 Rain days
Precipitation
51.9 mm
Avg. cloud cover
53 % cloudy
Sea temperature
–
Max 19.1 °C · Min 0.7 °C
2022
Avg. max15.3°Avg. min8.1°
Rain days
11 Rain days
Precipitation
103 mm
Avg. cloud cover
53 % cloudy
Sea temperature
–
Max 18.0 °C · Min 2.6 °C
2021
Avg. max13.0°Avg. min4.6°
Rain days
14 Rain days
Precipitation
112 mm
Avg. cloud cover
52 % cloudy
Sea temperature
–
Max 19.4 °C · Min -0.2 °C
2020
Avg. max12.8°Avg. min6.1°
Rain days
17 Rain days
Precipitation
204 mm
Avg. cloud cover
57 % cloudy
Sea temperature
–
Max 16.6 °C · Min 1.6 °C
2019
Avg. max14.2°Avg. min6.1°
Rain days
13 Rain days
Precipitation
74.7 mm
Avg. cloud cover
44 % cloudy
Sea temperature
–
Max 17.3 °C · Min -1.3 °C
2018
Avg. max13.2°Avg. min4.2°
Rain days
11 Rain days
Precipitation
64.8 mm
Avg. cloud cover
47 % cloudy
Sea temperature
–
Max 17.2 °C · Min -1.7 °C
2017
Avg. max11.8°Avg. min3.5°
Rain days
11 Rain days
Precipitation
85.6 mm
Avg. cloud cover
51 % cloudy
Sea temperature
–
Max 15.5 °C · Min -1.8 °C
2016
Avg. max13.3°Avg. min3.9°
Rain days
4 Rain days
Precipitation
12.8 mm
Avg. cloud cover
35 % cloudy
Sea temperature
–
Max 16.8 °C · Min -1.6 °C

Frequently asked questions

How warm is it in Rome in December?: Daytime highs averaged 13.6 °C, night-time lows 5.5 °C. The highest value of the past 10 years was 19.4 °C (31 Dec 2021), the lowest -1.8 °C (21 Dec 2017).
How often does it rain in Rome in December?: On average there were 11.2 rain days (at least 1 mm) with 84.7 mm of precipitation in total.

Check your exact travel dates

Choose your travel period – we show the weather for exactly those days.

Data sources

Weather data: Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains.
Sea temperature: MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis)
Place search: Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)