If you plan to visit Kos in December, the weather is typically alright, with an average high temperature of +61°F during the day and approximately 7 sunny days. Expect some rainy, though, as there are typically 17 rainy days in the month and around 146 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flightsin one click on Avionero.
Average weather
☀️
+61°F
Avg. max. temperature
+37°F
Min.
+73°F
Max.
146 mm
Total precipitation
73%
Avg. humidity
6 m/s
Avg. wind
7 ☀️
Sunny Days
6 ⛅️
Cloudy
17 🌦
Rainy
Our opinion: Kos has OK weather in December.
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Average temperature in Kos in December
Here are the expected maximum, average and minimum temperatures in Kos for December based on the historical data.
Last Year
Historical Data
Going from a maximum of +68°F during the day to a minimum of +55°F during the night, the temperature in December averages around +64°F.
The average maximum temperature goes down 29% by the end of the month, compared with the beginning of the month, from +68°F to +64°F.
Is Kos warm or cold in December?
Kos is typically mild in December.
Maximum temperatures go down compared to the previous month from +66°F to +61°F. The minimum temperature also goes down from +61°F to +55°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how December is compared to other months in Kos:
Water temperature in Kos in December
Water in Kos in December is Fresh. It varies from +62°F to +69°F, with an average of +65°F.Note that the air temperature is lower than the water temperature, averaging around +61°F.
In December, water temperatures are average relative to the rest of the year:
The warmest water temperatures in Kos are reached in August, when the average sea temperature rises to +79°F. The coldest water temperatures are in February, with an average of +62°F.
Can you swim in Kos in December?
Water temperature (+65°F) in Kos in December might be suited for short swims and acclimatized swimmers might find it refreshing.
🦭
Cold
Below +61°F
🏄♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
Think of bringing a full-body or shorty wetsuit (3mm-5mm thickness) to provide insulation and maintain body heat.
Climate in Kos in December
Kos weather looks like this, on average, in December and the surrounding months.
November
December
January
Avg. temperature
+66°F
+61°F
+57°F
Min. temperature
+45°F
+37°F
+32°F
Max. temperature
+82°F
+73°F
+72°F
Rainfall
99 mm
146 mm
142 mm
Wind
6 m/s
6 m/s
6 m/s
Avg. water temperature
+69°F
+65°F
+64°F
Humidity
73%
73%
71%
Air pressure
1016 HPa
1016 HPa
1016 HPa
Sunny days
10
7
7
Cloudy days
7
6
7
Rainy days
12
17
17
Snowy days
0
0
0
December typically has worse weather conditions compared to November.It’s getting colder in December. From +66°F in the day, the average maximum temperature lowers to +61°F.Prepare for more rain. Average rainfall goes from 99 mm to 146 mm.Humidity levels don’t change as the month goes on, averaging around 73%.The average wind speed doesn’t change much during December, staying around 6 m/s.The days becoming less sunny, going from 10 sunny days in November to 7 in December.
January brings much the same weather, it remains ok.
Wind speed in Kos in December based on historical data.
Last Year
Historical Data
The average wind speed is 5 m/s getting up to 11 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Kos is gradually decreasing during December, going from 3 m/s to 2 m/s over the course of the month.
Rain
Amount of rainfall in mm during December in Kos based on historical data.
Last Year
Historical Data
Typically, there is a 45% chance of rain on an average day in December, with total rainfall of approximately 122 mm. The maximum amount of rainfall per day is around 32 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 wellies.
December is one of the rainiest months in Kos, here is a comparison with other months, total mm:
Kos wettest month is December, where a typical day has a 55% chance of precipitation and 146 mm of rainfall per day. July, on the other hand, is the driest month with a mere 0% chance of precipitation and 0 mm of rainfall per day.
How was the weather last December in Kos?
This is the weather in Kos in December 2023:
1 December
☀️
+68°F
2 December
☁️
+68°F
3 December
☁️
+68°F
4 December
☁️
+67°F
5 December
☁️
+66°F
6 December
🌧️
+65°F
7 December
🌧️
+65°F
8 December
🌧️
+59°F
9 December
☁️
+60°F
10 December
☁️
+62°F
11 December
☀️
+64°F
12 December
☁️
+63°F
13 December
☀️
+67°F
14 December
☁️
+68°F
15 December
☁️
+68°F
16 December
🌧️
+68°F
17 December
☀️
+64°F
18 December
☀️
+63°F
19 December
☀️
+65°F
20 December
☁️
+66°F
21 December
🌧️
+66°F
22 December
🌧️
+64°F
23 December
☀️
+65°F
24 December
☀️
+66°F
25 December
☀️
+65°F
26 December
☁️
+66°F
27 December
☁️
+65°F
28 December
☀️
+65°F
29 December
☀️
+65°F
30 December
☁️
+65°F
31 December
☁️
+64°F
In December 2023 Kos had 11 sunny days, 14 cloudy days, and 6 rainy days. The average maximum temperature was +64°F, with an absolute maximum of +68°F and a minimum of +59°F. The average humidity was 74%, with a maximum of 92% and a minimum of 58%. The average wind speed was 5 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 the Years
This is how Kos climate has changed over the last 43 years.
The climate in Kos in December has not changed that much over the last 43 years.
The average temperature was the lowest in 1992 (+66°F) and the highest in 2018 (+75°F). The driest year was 1992 with only 335 mm of rainfall, and the wettest year was 2019 with 1062 mm.
FAQ
Frequently asked questions about the weather in Kos in December:
Is December a good time to visit Kos?
It’s always a good time to visit Kos, 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 Kos in December?
December has mild temperatures in Kos. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!
Can you swim in Kos in December?
In general, you can swim in Kos in December, if you want to, at an average water temperature of +65°F. But it will feel quite cool, and some precautions are necessary to ensure your comfort and safety.
Is Kos rainy in December?
Kos 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 Kos in December?
Usually, it’s not very sunny in Kos in December, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
For this page, we’ve looked at the typical weather in Kos, 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.
