December could be a good time to visit Rijeka, as the weather is generally fine. The average high temperature is around +10°C, and there are typically 8 sunny days in December. However, expect about 13 rainy days, and total monthly rainfall of approximately 205 mm. The weather is changeable so pack for every eventuality. Search flightsin one click on Avionero.
Average weather
☀️
+10°C
Avg. max. temperature
-11°C
Min.
+18°C
Max.
205 mm
Total precipitation
72%
Avg. humidity
2 m/s
Avg. wind
8 ☀️
Sunny Days
8 ⛅️
Cloudy
13 🌦
Rainy
Our opinion: Rijeka has OK weather in December.
Average temperature in Rijeka in December
Here are the expected maximum, average and minimum temperatures in Rijeka for December based on the historical data.
Last Year
Historical Data
The expected average maximum temperature in December is +12°C with a maximum of +18°C and a minimum of -1°C.
The average maximum temperature goes down 26% by the end of the month, compared with the beginning of the month, from +18°C to +13°C.
Is Rijeka warm or cold in December?
Rijeka is typically cool in December.
Maximum temperatures go down compared to the previous month from +14°C to +10°C. The minimum temperature also goes down from +8°C to +4°C.
Pack a sweater and a jacket as there will be cooler temperatures.
December is one of the coolest months in Rijeka, here is the comparison with other months:
Water temperature in Rijeka in December
Water in Rijeka in December is Cold. It varies from +12°C to +16°C, with an average of +14°C.Note that the air temperature is lower than the water temperature, averaging around +10°C.
In December, water temperatures are average relative to the rest of the year:
The warmest water temperatures in Rijeka are reached in August, when the average sea temperature rises to +24°C. The coldest water temperatures are in February, with an average of +11°C.
Can you swim in Rijeka in December?
We would not recommend swimming in Rijeka in December, the water is very cold (+14°C on average). Consider swimming only if you are an experienced cold-water swimmer with proper gear.
🦭
Cold
Below +16°C
🏄♂️
Fresh
16°C - 21°C
🏊
Comfortable
21°C - 25°C
👙
Warm
25°C - 28°C
🔥
Very warm
+28°C and up
You will need a full-body wetsuit, cap, gloves, a warm change of clothes, and a hot drink ready for after your swim.
Climate in Rijeka in December
Rijeka weather looks like this, on average, in December and the surrounding months.
November
December
January
Avg. temperature
+14°C
+10°C
+9°C
Min. temperature
-5°C
-11°C
-14°C
Max. temperature
+25°C
+18°C
+18°C
Rainfall
280 mm
205 mm
142 mm
Wind
2 m/s
2 m/s
2 m/s
Avg. water temperature
+16°C
+14°C
+11°C
Humidity
73%
72%
70%
Air pressure
1016 HPa
1017 HPa
1018 HPa
Sunny days
7
8
9
Cloudy days
6
8
7
Rainy days
14
13
12
Snowy days
0
1
2
December weather is still as ok as in November.It’s getting colder in December. From +14°C in the day, the average maximum temperature lowers to +10°C.As December arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 280 mm to 205 mm.It feels drier, as humidity decreases from 73% to 72%.The average wind speed doesn’t change much during December, staying around 2 m/s.The good news is there are likely to be more sunny days in December, from 7 to 8.
But maybe it is worth considering traveling in January as the weather gets better.
Wind speed in Rijeka in December based on historical data.
Last Year
Historical Data
The average wind speed is 2 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Rijeka is gradually decreasing during December, going from 4 m/s to 3 m/s over the course of the month.
Rain
Amount of rainfall in mm during December in Rijeka based on historical data.
Last Year
Historical Data
Total precipitation in December is about 198 mm, with a 45% chance of rain on a typical day. The maximum amount of rainfall per day is around 49 mm, which is moderate rain.December is a pretty wet month with over 14 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
Here’s how December is compared with other months in the amount of precipitation, total mm:
Rijeka wettest month is November, where a typical day has a 47% chance of precipitation and 280 mm of rainfall per day. July, on the other hand, is the driest month with a mere 32% chance of precipitation and 98 mm of rainfall per day.
Snow
Amount of snow in mm during December in Rijeka based on historical data.
Last Year
Historical Data
The total snow in December is about 0 mm, with a 0% chance of snow on a typical day.
December is one of the snowiest months in Rijeka.
Here’s how December is compared with other months in the amount of snow, total mm:
How was the weather last December in Rijeka?
This is the weather in Rijeka in December 2023:
1 December
🌧️
+18°C
2 December
🌧️
+16°C
3 December
☀️
+5°C
4 December
☀️
+6°C
5 December
🌧️
+8°C
6 December
☀️
+8°C
7 December
☀️
+10°C
8 December
☀️
+9°C
9 December
🌧️
+10°C
10 December
☀️
+11°C
11 December
🌧️
+12°C
12 December
🌧️
+13°C
13 December
🌧️
+14°C
14 December
☀️
+13°C
15 December
☀️
+11°C
16 December
☀️
+9°C
17 December
☀️
+13°C
18 December
☀️
+17°C
19 December
☀️
+15°C
20 December
☀️
+12°C
21 December
☁️
+11°C
22 December
☀️
+13°C
23 December
☀️
+14°C
24 December
☀️
+14°C
25 December
☁️
+14°C
26 December
☁️
+13°C
27 December
☁️
+12°C
28 December
☁️
+12°C
29 December
☁️
+12°C
30 December
🌧️
+11°C
31 December
🌧️
+13°C
In December 2023 Rijeka had 16 sunny days, 6 cloudy days, and 9 rainy days. The average maximum temperature was +12°C, with an absolute maximum of +18°C and a minimum of +5°C. The average humidity was 85%, with a maximum of 98% and a minimum of 48%. The average wind speed was 2 m/s, with a maximum of 12 m/s and a minimum of 0 m/s.
Are you planning a trip in December?
Climate Change over Years
This is how Rijeka climate have been changing during last 43 years period.
The climate in Rijeka in December has not changed much over the last 43 years.
The average temperature was the lowest in 1980 (+16°C) and the highest in 2011 (+20°C). The driest year was 2003 with only 1149 mm of rainfall, and the wettest year was 2019 with 4603 mm.
FAQ
Frequently asked questions about the weather in Rijeka in December:
Is December a good time to visit Rijeka?
It’s always a good time to visit Rijeka, but the weather is changeable in December, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Rijeka in December?
Not really, December is not the best time to sunbathe, unless you visit a local solarium.
Can you swim in Rijeka in December?
Swimming in Rijeka in December is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.
Is Rijeka rainy in December?
Rijeka is often rainy in December. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Rijeka in December?
Usually, it’s not very sunny in Rijeka in December, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
Other cities in Croatia
Check out the weather for other cities in Croatia.
For this page, we’ve looked at the typical weather in Rijeka, 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.