Iaşi
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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.

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

Iaşi Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Iaşi - and find the best time to visit.

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 records 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
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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.

  • Swimming
    4/10
  • Cycling
    3/10
  • Walking
    3/10
  • Camping
    2/10
  • Outdoor sports
    3/10

Iaşi 3-Day Forecast

More climate data for Iaşi

Popular in December

Where to go in December - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.