Gromnik Weather in December

Gromnik in December sees low daytime temperatures of 10°C (50°F) and nighttime lows of 4°C (39°F). Rainfall is fairly high this month at around 158 mm (6.2 in), so pack a rain jacket to stay dry.

Rainfall in Gromnik in December

Records from the past 30 years suggest around 13 days of rain, with 158 mm (6.2 in) average for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Gromnik in December

Daytime highs in Gromnik in December reach 10°C (50°F), with nights around 4°C (39°F). December is part of winter. Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. With overnight lows of 4°C (39°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Gromnik in December

The month experiences a moderate amount of sunlight, with 100 hours of sunshine. This provides a nice balance between sunshine and clouds.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Gromnik. Our weather planner can help you explore destinations with more pleasant weather conditions.

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• January
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For a detailed overview over the year and the best time to visit Croatia, check out our Gromnik's climate page.

Gromnik Temperature in December

Min Temperature 4°C (39°F)  

Max Temperature 10°C (50°F)  

Chance of Rain 43%  

Precipitation 158 mm (6.2 in)  

Rainy days 13 days  

Humidity 66% *  

Sunshine 100 hours *  

Percentage Sunshine 39% *  

* Data from: Rijeka, Croatia (27 KM, 16 Miles).

What to Wear in Gromnik 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. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Gromnik in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

4/10

Walking

4/10

Camping

3/10

Outdoor sports

4/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Croatia, check out our Gromnik's climate page.

More climate data for Gromnik

Temperature Rainfall Sunshine Humidity

See the full Gromnik climate overview or explore weather in Croatia.