January weather forecast
Keratsini, Greece

January

Weather in January

January, like December, in Keratsini, Greece, is another fresh winter month, with temperature in the range of an average low of 7.2°C (45°F) and an average high of 11.9°C (53.4°F).

Temperature

January, with its average high-temperature of 11.9°C (53.4°F) and an average low-temperature of 7.2°C (45°F), holds the record as the coldest month.

Humidity

With an average relative humidity of 73%, January is the most humid month in Keratsini.

Rainfall

In Keratsini, in January, it is raining for 9.3 days, with typically 29mm (1.14") of accumulated precipitation. Throughout the year, there are 88.8 rainfall days, and 263mm (10.35") of precipitation is accumulated.

Snowfall

January through March and December are months with snowfall in Keratsini. The months with the most snowfall in Keratsini are January, February and December, with an average 4mm (0.16") of accumulated snow.

Sea temperature

In January, the average sea temperature is 15.4°C (59.7°F).
Note: Swimming in 15.4°C (59.7°F) does not offer a pleasant experience for most individuals. The act of controlling one's breathing becomes progressively difficult as the water temperature goes under 21°C (69.8°F).

Daylight

The average length of the day in January in Keratsini is 9h and 53min.
On the first day of January in Keratsini, sunrise is at 07:41 and sunset at 17:16. On the last day of the month, sunrise is at 07:31 and sunset at 17:46 EET.

Sunshine

January has the least sunshine of the year in Keratsini, with an average of 5.7h of sunshine.

UV index

In Keratsini, the average daily maximum UV index in January is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: An average UV index of 3 in January transforms into this advice:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.

Frequently asked questions

What time of the year is the coldest in Keratsini?
In Keratsini, the average lowest temperatures are observed in January, with a high of 11.9°C (53.4°F) and a low of 7.2°C (45°F).
What is the temperature in January in Keratsini?
In Keratsini, 11.9°C (53.4°F) is the average high-temperature and 7.2°C (45°F) is the average low-temperature during January.
What is the most humid month in Keratsini?
With an average relative humidity of 73%, January is the most humid month in Keratsini.
What is the average humidity in January in Keratsini?
The average relative humidity in January is 73%.
How many days does it rain in January in Keratsini?
In January, in Keratsini, the rain falls for 9.3 days. Throughout January, 29mm (1.14") of precipitation is accumulated.
When does it snow the most in Keratsini?
The months with the most snowfall are January, February and December, with an average 4mm (0.16") of accumulated snow.
How much does it snow in Keratsini in January?
In January, in Keratsini, Greece, it is snowing for 0.9 days. Throughout January, 4mm (0.16") of snow is accumulated.
How cold is the water in January in Keratsini?
In Keratsini, in January, the average water temperature is 15.4°C (59.7°F). Swimming in 15.4°C (59.7°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).
How many hours of daylight does Keratsini have in January?
In January, the average day length in Keratsini, Greece, is 9h and 53min.
When is the sunrise / sunset in January in Keratsini?
In January, on the first day of the month, sunrise is at 07:41 and sunset at 17:16. On the last day of the month, in Keratsini, sunrise is at 07:31 and sunset at 17:46 EET.
What is the month with the least sunshine in Keratsini?
With an average of 5.7h of sunshine, January has the least sunshine of the year.
How long on average sun shines in January in Keratsini?
The average sunshine duration in January is 5.7h.
What is the UV index intensity in January in Keratsini?
In January, the average daily maximum UV index in Keratsini is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in January
Keratsini, Greece
  • Average high temperature in January: 11.9°C

The warmest month (with the highest average high temperature) is July (31.1°C).
The month with the lowest average high temperature is January (11.9°C).

  • Average low temperature in January: 7.2°C

The month with the highest average low temperature is August (24.1°C).
The coldest month (with the lowest average low temperature) is January (7.2°C).

Average pressure in January
Keratsini, Greece
  • Average pressure in January: 1016.8mbar

The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is July (1011.1mbar).

Average wind speed in January
Keratsini, Greece
  • Average wind speed in January: 14.6km/h

The windiest month (with the highest average wind speed) is August (15.7km/h).
The calmest month (with the lowest average wind speed) is May (11.4km/h).

Average humidity in January
Keratsini, Greece
  • Average humidity in January: 73%

The month with the highest relative humidity is January (73%).
The months with the lowest relative humidity are July and August (50%).

Average rainfall in January
Keratsini, Greece
  • Average rainfall in January: 29mm

The wettest month (with the highest rainfall) is December (39mm).
The driest month (with the least rainfall) is August (4mm).

Average rainfall days in January
Keratsini, Greece
  • Average rainfall days in January: 9.3 days

The month with the highest number of rainy days is March (9.9 days).
The month with the least rainy days is August (2 days).

Average snowfall in January
Keratsini, Greece
  • Average snowfall in January: 4mm

The months with the highest snowfall are January, February and December (4mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in January
Keratsini, Greece
  • Average snowfall days in January: 0.9 days

The month with the highest number of snowfall days is January (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average sea temperature in January
Keratsini, Greece
  • Average sea temperature in January: 15.4°C

The best month for swimming (with the highest average sea temperature) is August (26.3°C).
The coldest month (with the lowest average sea temperature) is February (15°C).

Average daylight in January /
Average sunshine in January
Keratsini, Greece
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in January: 5h and 4min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).

Average sunshine days in January
Keratsini, Greece
  • Average sunshine days in January: 18.4 days

The month with the most sunshine days is August (27.5 days).
The month with the least sunshine days is February (16.3 days).

Average UV index in January
Keratsini, Greece
  • Average UV index in January: 3

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in January
Keratsini, Greece
  • Average cloud cover in January: 39

The month with the most cloud cover is January (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 7).

Average visibility in January
Keratsini, 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).

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