Iaşi Weather in December
Thinking of visiting Iaşi in December? Expect low temperatures reaching 4°C (39°F) during the day, dropping to -3°C (27°F) at night, with some snow/rainfall likely.
Rainfall in Iaşi in December
Historically, approximately 13 days this month are expected to have snow/rain, averaging 41 mm (1.6 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Iaşi in December
December in Iaşi sees highs of 4°C (39°F) and lows of -3°C (27°F) overnight. December is part of winter. Cold conditions tend to persist from morning through evening, so be prepared for winter weather. At -3°C (27°F) overnight, frost and ice are likely outside. Indoors, consider packing an extra blanket if you're unsure about the heating. This month is extremely cold, so be sure to dress in layers to keep warm. Proper preparation can help you stay comfortable.
Sunshine in Iaşi in December
The area sees fewer sunny days, with a projection of about 60 hours of sunshine. This reduced sunlight makes it ideal for those who prefer overcast conditions over bright sunny days.
Wind Speed in Iaşi in December
December has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Iaşi. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Romania, check out our Iaşi's climate page.
Iaşi Temperature in December
Min Temperature
-3°C (27°F)
Max Temperature
4°C (39°F)
Chance of Rain
43%
Precipitation
41 mm (1.6 in)
Rainy days
13 days
Humidity
85%
Windspeed
3 m/s (6 knots)
Sunshine
60 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Iaşi typically stay consistent throughout December, with daily highs averaging around 4°C (39°F). Nights are very cold, with lows typically ranging from -4°C (25°F) to -1°C (30°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Iaşi in December
Browse day-by-day weather records for Iaşi spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Iaşi historical weather extremes in December
The extremes listed below come from historical weather data collected in Iaşi from 1976 through 2025.
- The warmest day in December was on December 18, 1989, with a maximum of 19°C (66°F).
Best Places in Romania in December
Find out more about the weather in Romania and which places have the best travel conditions in this month. See all of Romania in December →
perfect weather
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tolerable
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What to Wear in Iaşi in December
Cold weather calls for smart layering in December. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Rain gear is recommended, you can expect wet weather on multiple days. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.What To Do in Iaşi in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Romania, check out our Iaşi's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Iaşi climate overview or explore weather in Romania.
