Sečovlje Weather in December
December in Sečovlje typically sees daytime highs of 11°C (52°F) and nighttime lows of 6°C (43°F). Rainfall is also possible this month, so it's worth packing an umbrella. It falls within the winter season.
Rainfall in Sečovlje in December
Historically, the month has about 12 days of rain, averaging 117 mm (4.6 in) in total. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Sečovlje in December
In December, expect low temperatures in Sečovlje, with highs of 11°C (52°F) and lows of 6°C (43°F) at night. Experience the winter season in December. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. At 6°C (43°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.
Sunshine in Sečovlje in December
With limited sunshine this month, there are about 95 hours of sun. It's ideal for those who prefer a cooler, cloudier climate.December in Sečovlje can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Slovenia, check out our Sečovlje's climate page.
Sečovlje Temperature in December
Min Temperature
6°C (43°F)
Max Temperature
11°C (52°F)
Chance of Rain
40%
Precipitation
117 mm (4.6 in)
Rainy days
12 days
Humidity
67% *
Sunshine
95 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Sečovlje typically stay consistent throughout December, with daily highs averaging around 11°C (52°F). Nights are cold, with lows typically ranging from 1°C (34°F) to 4°C (39°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 Sečovlje in December
Browse day-by-day weather records for Sečovlje spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sečovlje historical weather extremes in December
Based on weather observations in Sečovlje between 1976 and 2025, these are the recorded extremes during December.
- The hottest December day on record in Sečovlje reached 20°C (68°F) (December 1, 2023).
- The coldest night in December in Sečovlje was on December 20, 2009, with a minimum of -10°C (14°F).
Best Places in Slovenia in December
Find out more about the weather in Slovenia and which places have the best travel conditions in this month. See all of Slovenia in December →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Sečovlje in December
The weather can be unpredictable in December, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.What To Do in Sečovlje 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 Slovenia, check out our Sečovlje's climate page.
Temperature Rainfall Sunshine Humidity
See the full Sečovlje climate overview or explore weather in Slovenia.
