December weather forecastSpetses, Greece

December

Weather in December

The first month of the winter, December, is still a refreshing month in Spetses, Greece, with an average temperature varying between 14.4°C (57.9°F) and 10.4°C (50.7°F).

Temperature

The commencement of December includes a gentle temperature shift, with the average high-temperature dropping a bit from an enjoyable 18.3°C (64.9°F) in November to a moderate 14.4°C (57.9°F). December nights reveal a minor deviation from daytime highs, with a mean low-temperature of 10.4°C (50.7°F).

Humidity

The average relative humidity in December is 70%.

Rainfall

December is the month with the most rainfall in Spetses. Rain falls for 10.5 days and accumulates 36mm (1.42") of precipitation.

Snowfall

January, February and December are months with snowfall in Spetses. December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. Throughout the year, in Spetses, there are 0.8 snowfall days, and 7mm (0.28") of snow is accumulated.

Sea temperature

In Spetses, the average seawater temperature in December is 17.3°C (63.1°F).
Note: Swimming in water that is 17.3°C (63.1°F) is not enjoyable for most. Breathing becomes more challenging to manage as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).

Daylight

December has the shortest days of the year in Spetses, with an average of 9h and 42min of daylight.
On the first day of the month, sunrise is at 07:22 and sunset at 17:10. On the last day of December, in Spetses, sunrise is at 07:41 and sunset at 17:19 EET.

Sunshine

The average sunshine in December in Spetses is 6.2h.

UV index

The months with the lowest UV index in Spetses are January and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 3 in December translates into this advice:
Guard yourself - Avoiding sunburn is suggested. It's recommended to limit sun exposure when its radiation is at its peak during midday. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.

Updated: Feb 14, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature, in December, in Spetses, is 14.4°C (57.9°F), while the average low-temperature is 10.4°C (50.7°F). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 32°C (89.6°F).

In Spetses, Greece, the average relative humidity in December is 70%.

December is the month with the most rainfall in Spetses. Rain falls for 10.5 days and accumulates 36mm (1.42") of precipitation.

In Spetses, Greece, in December, during 10.5 rainfall days, 36mm (1.42") of precipitation is typically accumulated.

December is the first month it typically snows in Spetses, Greece. Throughout December, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow.

In Spetses, the average seawater temperature in December is 17.3°C (63.1°F). Swimming in 17.3°C (63.1°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

With an average of 9h and 42min of daylight, December has the shortest days of the year.

In Spetses, the average day length in December is 9h and 39min.

In December, on the first day of the month, sunrise is at 07:22 and sunset at 17:10. On the last day of the month, in Spetses, Greece, sunrise is at 07:41 and sunset at 17:19 EET.

In December, the average sunshine duration in Spetses, Greece, is 6.2h.

The months with the lowest UV index in Spetses, Greece, are January and December, with an average maximum UV index of 3.

The average daily maximum UV index in December in Spetses is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

18.3°C

14.4°C

12.6°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

14.1km/h

14.9km/h

16km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

0.1

0.4

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

18.6

18.1

16.5

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Spetses, Greece

Average high temperature in December: 14.4°C

The warmest month (with the highest average high temperature) is August (29.7°C).
The month with the lowest average high temperature is January (12.6°C).

Average low temperature in December: 10.4°C

The month with the highest average low temperature is August (24.2°C).
The coldest month (with the lowest average low temperature) is January (8.6°C).

Average pressure in December
Spetses, Greece

Average pressure in December: 1018.2mbar

The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is July (1011.3mbar).

Average wind speed in December
Spetses, Greece

Average wind speed in December: 13.8km/h

The windiest month (with the highest average wind speed) is January (14.6km/h).
The calmest month (with the lowest average wind speed) is May (11.1km/h).

Average humidity in December
Spetses, Greece

Average humidity in December: 70%

The months with the highest relative humidity are January and February (72%).
The month with the lowest relative humidity is August (56%).

Average rainfall in December
Spetses, Greece

Average rainfall in December: 36mm

The wettest month (with the highest rainfall) is December (36mm).
The driest months (with the least rainfall) are July and August (6mm).

Average rainfall days in December
Spetses, Greece

Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is January (10.8 days).
The month with the least rainy days is August (3.3 days).

Average snowfall in December
Spetses, Greece

Average snowfall in December: 1mm

The month with the highest snowfall is January (5mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December
Spetses, Greece

Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

Average sea temperature in December
Spetses, Greece

Average sea temperature in December: 17.3°C

The best month for swimming (with the highest average sea temperature) is August (26.5°C).
The coldest month (with the lowest average sea temperature) is February (15.3°C).

Average daylight in December /
Average sunshine in December
Spetses, Greece

Average daylight in December: 9h and 42min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

Average sunshine in December: 6h and 12min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).

Average sunshine days in December
Spetses, Greece

Average sunshine days in December: 18.1 days

The month with the most sunshine days is July (27 days).
The month with the least sunshine days is January (16.5 days).

Average UV index in December
Spetses, Greece

Average UV index in December: 3

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in December
Spetses, Greece

Average cloud cover in December: 32

The months with the most cloud cover are January and February (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 7).

Average visibility in December
Spetses, Greece

Average visibility in December: 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).