January weather forecastKos, Greece

January
Weather in January
Kos, Greece, ushers in the New Year with moderate temperatures and rainfall. January experiences a significant amount of precipitation with 81mm (3.19") falling over approximately 13.5 days. The new year seems to prefer a milder demeanor with cooler temperatures on the island. Transitional in nature, the weather in Kos moves between the colder December and the somewhat warmer February, reflecting a pleasant but perceptible shift. Sea temperature remains mildly chilly, making it ideal for tranquil walks along the beach.Temperature
Kos's January weather reaches an average high of 13.8°C (56.8°F) and an average low of 11.1°C (52°F), making it the coldest month.Humidity
In Kos, the average relative humidity in January is 69%.Rainfall
January is the month with the most rainfall in Kos. Rain falls for 13.5 days and accumulates 81mm (3.19") of precipitation.Sea temperature
In Kos, the average seawater temperature in January is 17.9°C (64.2°F).Note: For most individuals, swimming in 17.9°C (64.2°F) is not a pleasurable activity. Breathing becomes progressively more difficult as water temperature declines below 21°C (69.8°F).
Daylight
In Kos, the average length of the day in January is 9h and 58min.On the first day of the month, sunrise is at 07:23 and sunset at 17:04. On the last day of January, in Kos, sunrise is at 07:14 and sunset at 17:34 EET.
Sunshine
In January, the average sunshine is 7.6h.UV index
January, February and December, with an average maximum UV index of 4, are months with the lowest UV index in Kos. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index, 4 in January, converts into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Kos, Greece
- Average high temperature in January: 13.8°C
The warmest month (with the highest average high temperature) is August (28.5°C).
The month with the lowest average high temperature is January (13.8°C).
- Average low temperature in January: 11.1°C
The month with the highest average low temperature is August (25°C).
The coldest month (with the lowest average low temperature) is January (11.1°C).
Average pressure in January
Kos, Greece
- Average pressure in January: 1016.5mbar
The month with the highest atmospheric pressure is December (1017.6mbar).
The month with the lowest atmospheric pressure is July (1007.6mbar).
Average wind speed in January
Kos, Greece
- Average wind speed in January: 23.7km/h
The windiest month (with the highest average wind speed) is January (23.7km/h).
The calmest month (with the lowest average wind speed) is May (14.4km/h).
Average humidity in January
Kos, Greece
- Average humidity in January: 69%
The months with the highest relative humidity are February, April and May (70%).
The months with the lowest relative humidity are July and October (65%).
Average rainfall in January
Kos, Greece
- Average rainfall in January: 81mm
The wettest month (with the highest rainfall) is January (81mm).
The driest months (with the least rainfall) are July and August (1mm).
Average rainfall days in January
Kos, Greece
- Average rainfall days in January: 13.5 days
The month with the highest number of rainy days is January (13.5 days).
The month with the least rainy days is August (0.4 days).
Average sea temperature in January
Kos, Greece
- Average sea temperature in January: 17.9°C
The best month for swimming (with the highest average sea temperature) is August (25.3°C).
The coldest month (with the lowest average sea temperature) is March (16.9°C).
Average daylight in January /
Average sunshine in January
Kos, Greece
- Average daylight in January: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January: 7h and 36min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in January
Kos, Greece
- Average sunshine days in January: 15.5 days
The months with the most sunshine days are July and August (29.8 days).
The month with the least sunshine days is February (14.1 days).
Average UV index in January
Kos, Greece
- Average UV index in January: 4
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 4).
Average cloud cover in January
Kos, Greece
- Average cloud cover in January: 37
The month with the most cloud cover is January (Cloud cover 37).
The months with the least cloud cover are July and August (Cloud cover 3).
Average visibility in January
Kos, Greece
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





