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Weather in Kos for December 2025

Your guide to Kos weather in December - trends and predictions

    Temperatures

  • Until now, December 2025 in Kos has been nearly identical to the historical average, with a temperature of 16.5 °C (showing only a slight deviation of -0.4 °C).

  • Expect cooler weather in the next days in Kos with the forecast suggesting a temperature of 14.6 °C, lower than the historical average.

  • In general, the average temperature in Kos at the beginning of December is 17.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 12.9 °C by the end of December.

    • Rain 🌧️

  • Kos in December brings notable rainfall, with an average of 19 rainy days and a total precipitation of 185.4 mm.

    • More

  • Is December a good time to visit Kos? check out the best time to travel to Kos page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
12
Dry days
Average rainy days
19
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/13°
Temperatures
Average wind speed
23 km/h
Avg max wind
Average humidity
71 %
Avg humidity

Kos Weather December

Move between months or click on a day
November
January
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Light rain shower
19°
2
Partly cloudy
18°
3
Patchy rain possible
17°
4
Moderate rain at times
17°
5
Patchy rain possible
18°
6
Light rain shower
17°
7
Light rain shower
17°
8
Light rain shower
17°
9
Patchy rain possible
16°
10
Light rain shower
16°
11
Light rain shower
16°
12
Patchy rain possible
16°
13
Sunny
16°
14
Sunny
16°
15
Sunny
15°
16
Sunny
15°
17
Sunny
16°
18
Sunny
16°
19
Sunny
16°
20
Overcast
16°
21
Partly cloudy
16°
22
Patchy rain possible
15°
23
Patchy rain possible
16°
24
Patchy rain possible
16°
25
Sunny
14°
26
Sunny
12°
27
Sunny
10°
28
Sunny
11°
29
Sunny
14°
30
Patchy rain possible
14°
31
Light rain shower
15°

Temperatures trend during December in Kos

See the weather trend as well as the moving average line

December weather in Kos day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
1 Dec. Light rain shower
Light rain shower
 19° /15° 9.3 mm 4
2 Dec. Partly cloudy
Partly cloudy
 18° /15° 2.5 mm 4
3 Dec. Patchy rain possible
Patchy rain possible
 17° /14° 0.5 mm 4
4 Dec. Moderate rain at times
Moderate rain at times
 17° /14° 3 mm 4
5 Dec. Patchy rain possible
Patchy rain possible
 18° /14° 10.5 mm 4
6 Dec. Light rain shower
Light rain shower
 17° /14° 15.9 mm 4
7 Dec. Light rain shower
Light rain shower
 17° /14° 17.4 mm 4
8 Dec. Light rain shower
Light rain shower
 17° /14° 13.1 mm 4
9 Dec. Patchy rain possible
Patchy rain possible
 16° /13° 2.9 mm 4
10 Dec. Light rain shower
Light rain shower
 16° /13° 1.3 mm 4
11 Dec. Light rain shower
Light rain shower
 16° /13° 4.8 mm 4
12 Dec. Patchy rain possible
Patchy rain possible
 16° /13° 0 mm 5
13 Dec. Sunny
Sunny
 16° /12° 0 mm 5
14 Dec. Sunny
Sunny
 16° /12° 0 mm 4
15 Dec. Sunny
Sunny
 15° /12° 0 mm 0.4
16 Dec. Sunny
Sunny
 15° /11° 0 mm 0.4
17 Dec. Sunny
Sunny
 16° /12° 0 mm 0.4
18 Dec. Sunny
Sunny
 16° /12° 0 mm 0.4
19 Dec. Sunny
Sunny
 16° /13° 0 mm 0.6
20 Dec. Overcast
Overcast
 16° /14° 0 mm 3
21 Dec. Partly cloudy
Partly cloudy
 16° /14° 0 mm 4
22 Dec. Patchy rain possible
Patchy rain possible
 15° /14° 0.6 mm 3
23 Dec. Patchy rain possible
Patchy rain possible
 16° /14° 1.2 mm 3
24 Dec. Patchy rain possible
Patchy rain possible
 16° /14° 0.5 mm 3
25 Dec. Sunny
Sunny
 14° /11° 0 mm 4
26 Dec. Sunny
Sunny
 12° /9° 0 mm 4
27 Dec. Sunny
Sunny
 10° /7° 0 mm 3
28 Dec. Sunny
Sunny
 11° /7° 0 mm 3
29 Dec. Sunny
Sunny
 14° /10° 0.7 mm 5
30 Dec. Patchy rain possible
Patchy rain possible
 14° /11° 0.1 mm 4
31 Dec. Light rain shower
Light rain shower
 15° /11° 1.9 mm 4
Next
Important Notice
Our weather forecast for Kos in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Kos forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Kos weather in December vs November vs January

Compare December weather in Kos with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
NovemberDecemberJanuary
WeatherPatchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures19°/15°16°/13°15°/12°
Rainfall104 mm185 mm114 mm
Wind25.1 km/h23.4 km/h23.9 km/h
Humidity63%71%70%
Rainy days16 days19 days20 days
Dry days14 days12 days11 days

Planning a trip to Kos? Discover the best time to visit

Kos in December - FAQ

What are the expected maximum and minimum temperatures in Kos during December?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Kos during December?
Significant rainfall exceeding 185.4 mm is expected in Kos during December, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Kos during December?
The average wind speed in Kos during December is 23 km/h, suggesting breezy to windy conditions, depending on your activities.

Kos water temperatures in December

The average water temperature of the Mediterranean Sea near Kos in December is 20.8 °C. Temperatures remain fairly consistent throughout the month.

What is the water temperature in Kos in December?
The average water temperature in Kos in December is 20.8 °C.
Can you swim in Kos in December?
Refreshing and invigorating. Expect to feel chilled after 10–20 minutes; a shorty wetsuit extends water time, especially at dawn.

What to pack to Kos in December?

As you prepare for your trip to Kos in December, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Kos, during December, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Warm Clothing: Sweaters, hoodies, long pants
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
  • Accessories
    • Scarves: To protect you from the cold wind
    • Gloves/Mittens: Essential for cold weather
    • Warm Hats: Warm hats for insulation in cold weather
    • Umbrellas/Raincoats: For rainy days

December rainfall patterns in Kos

Explore the daily rainfall trends and prepare for Koss December weather 💧
Typically, Kos has 19 rainy days in December with a total of 185.4 mm of rainfall.

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Location coordinates Where is Kos?

Get accurate weather forecasts for Kos, located at latitude 36.893 and longitude 27.288. Stay updated with localized weather information tailored for Kos.

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