Weather in Kos for January 2026
Until now, January 2026 in Kos is slightly cooler than the historical average by -0.9 °C.
Expect cooler weather in the next days in Kos with the forecast suggesting a temperature of 15.4 °C, lower than the historical average.
In general, the average temperature in Kos at the beginning of January is 15.9 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 15 °C by the end of January.
Kos in January brings notable rainfall, with an average of 20 rainy days and a total precipitation of 114.4 mm.
Is January a good time to visit Kos? check out the best time to travel to Kos page.
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Kos Weather January
Temperatures trend during January in Kos
January weather in Kos day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Jan. |  Light rain shower | 13° /8° | 4.3 mm | 3 | |
| 2 Jan. | Light rain shower | 14° /9° | 3.2 mm | 3 | |
| 3 Jan. | Light rain shower | 16° /13° | 2.1 mm | 3 | |
| 4 Jan. | Light rain shower | 16° /14° | 11.4 mm | 3 | |
| 5 Jan. | Patchy rain possible | 17° /14° | 2.9 mm | 3 | |
| 6 Jan. | Patchy rain possible | 17° /14° | 0.3 mm | 3 | |
| 7 Jan. | Light rain shower | 18° /15° | 3.3 mm | 3 | |
| 8 Jan. | Light rain shower | 17° /14° | 9.2 mm | 3 | |
| 9 Jan. | Light rain shower | 15° /11° | 4.7 mm | 3 | |
| 10 Jan. | Light rain shower | 15° /11° | 5.1 mm | 2 | |
| 11 Jan. |  Sunny | 14° /11° | 7.4 mm | 3 | |
| 12 Jan. |  Partly cloudy | 13° /10° | 3.9 mm | 3 | |
| 13 Jan. | Sunny | 12° /9° | 1.4 mm | 3 | |
| 14 Jan. | Sunny | 13° /8° | 3.9 mm | 3 | |
| 15 Jan. | Light rain shower | 14° /10° | 8.2 mm | 3 | |
| 16 Jan. |  Moderate or heavy rain with thunder | 15° /11° | 7.3 mm | 3 | |
| 17 Jan. | Patchy rain possible | 15° /11° | 0.2 mm | 3 | |
| 18 Jan. | Light rain shower | 16° /12° | 0.6 mm | 4 | |
| 19 Jan. | Patchy rain possible | 15° /11° | 0.1 mm | 3 | |
| 20 Jan. | Patchy rain possible | 15° /11° | 0.1 mm | 3 | |
| 21 Jan. | Light rain shower | 16° /10° | 5.2 mm | 3 | |
| 22 Jan. | Sunny | 15° /12° | 8.1 mm | 3 | |
| 23 Jan. | Sunny | 14° /11° | 5.1 mm | 3 | |
| 24 Jan. | Light rain shower | 15° /12° | 4 mm | 3 | |
| 25 Jan. | Partly cloudy | 15° /10° | 2.7 mm | 3 | |
| 26 Jan. | Sunny | 15° /11° | 3.8 mm | 3 | |
| 27 Jan. |  Overcast | 14° /11° | 6.5 mm | 2 | |
| 28 Jan. | Overcast | 14° /10° | 1.2 mm | 3 | |
| 29 Jan. | Partly cloudy | 15° /11° | 3 mm | 3 | |
| 30 Jan. |  Moderate rain | 16° /15° | 6.6 mm | 0.5 | |
| 31 Jan. | Moderate rain | 16° /15° | 11 mm | 0.5 | |
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Kos weather in January vs December vs February
| December | January | February | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Sunny |
| Temperatures | 16°/13° | 15°/12° | 15°/11° |
| Rainfall | 185 mm | 114 mm | 28 mm |
| Wind | 23.4 km/h | 23.9 km/h | 24.6 km/h |
| Humidity | 71% | 70% | 68% |
| Rainy days | 19 days | 20 days | 6 days |
| Dry days | 12 days | 11 days | 23 days |
Planning a trip to Kos? Discover the best time to visit
Kos in January - FAQ
What are the expected maximum and minimum temperatures in Kos during January?
How much rainfall should be expected in Kos during January?
What are the typical wind conditions in Kos during January?
Kos water temperatures in January
The average water temperature of the Mediterranean Sea near Kos in January is 18.2 °C. At the beginning of January temperatures are around 18.7 °C; by the end of the month they get cooler and reach 17.7 °C.
- What is the water temperature in Kos in January?
- The average water temperature in Kos in January is 18.2 °C.
- Can you swim in Kos in January?
- 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 January?
As you prepare for your trip to Kos in January, 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 January, 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
January rainfall patterns in Kos
Quick links
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.