Weather in Bacau in December 2025
- December is usually the wettest month of the year in Bacau;
Average weather
Average temperature in Bacau in December
The temperature in December is +7°C on average, with a range between a maximum of +16°C during the day and a minimum of -7°C at night.
The average maximum temperature goes up 4% by the end of the month, compared with the beginning of the month, from +12°C to +13°C.
Is Bacau warm or cold in December?
Bacau is typically cool in December.
Maximum temperatures go down compared to the previous month from +8°C to +3°C. The minimum temperature also goes down from +1°C to -3°C.
Pack a sweater and a jacket as there will be cooler temperatures.
December is one of the coolest months in Bacau, here is the comparison with other months:
Climate in Bacau in December
| November | December | January | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +8°C | +3°C | +2°C | ||||
| Min. temperature | ||||||
| -21°C | -24°C | -27°C | ||||
| Max. temperature | ||||||
| +24°C | +17°C | +19°C | ||||
| Rainfall | ||||||
| 17 mm | 10 mm | 4 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 85% | 86% | 84% | ||||
| Air pressure | ||||||
| 1018 HPa | 1019 HPa | 1019 HPa | ||||
| Sunny days | ||||||
| 4 | 4 | 4 | ||||
| Cloudy days | ||||||
| 16 | 17 | 17 | ||||
| Rainy days | ||||||
| 7 | 4 | 2 | ||||
| Snowy days | ||||||
| 4 | 7 | 8 | ||||
December weather is still as ok as in November. It’s getting colder in December. From +8°C in the day, the average maximum temperature lowers to +3°C. As December arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 17 mm to 10 mm. Humidity rises from 85% to 86%. The average wind speed doesn’t change much during December, staying around 2 m/s. The amount of sunny days stay about the same, averaging 4 sunny days during the month.
January brings much the same weather, it remains ok.
Wind
The average wind speed is 2 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Bacau is gradually decreasing during December, going from 4 m/s to 2 m/s over the course of the month.
Rain
Snow
December is one of the snowiest months in Bacau.
Here’s how December is compared with other months in the amount of snow, total mm:
How was the weather last December in Bacau?
Climate Change over Years
The climate in Bacau in December has not changed much over the last 43 years.
The average temperature was the lowest in 1980 (+12°C) and the highest in 2023 (+18°C). The driest year was 2003 with only 239 mm of rainfall, and the wettest year was 2016 with 680 mm.
FAQ
Is December a good time to visit Bacau?
Can you sunbathe in Bacau in December?
Is Bacau rainy in December?
Is it sunny in Bacau in December?
Other cities in Romania
Monthly weather in Bacau
Source of the data
For this page, we’ve looked at the typical weather in Bacau, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
