Olympia
Greece
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Olympia, Greece

The first month of the winter, December, is also a moderate month in Olympia, Greece, with temperature in the range of an average low of 7°C (44.6°F) and an average high of 15°C (59°F).

Temperature

In Olympia, Greece, the average high-temperature in December slightly decreases, from a comfortable 19°C (66.2°F) in November, to a moderate 15°C (59°F). The average low-temperature, in December, is 7°C (44.6°F).

Rainfall

The month with the most rainfall in Olympia is December when the rain falls for 14 days and typically aggregates up to 148mm (5.8") of precipitation.

Daylight

The month with the shortest days is December, with an average of 9.6h of daylight.

Sunshine

The month with the least sunshine in Olympia is December, with an average of 4h of sunshine.

UV index

Months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to the Sun's UV rays for ordinary individuals.
In December, the average maximum UV index of 2 translate into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in December in Olympia?

The average high-temperature, in December, is 15°C (59°F), while the average low-temperature is 7°C (44.6°F).

How many days does it rain in December in Olympia?

In December, in Olympia, Greece, the rain falls for 14 days. Throughout December, 148mm (5.8") of precipitation is accumulated.

What is the rainiest month in Olympia?

The month with the most rainfall in Olympia is December when the rain falls for 14 days and typically aggregates up to 148mm (5.8") of precipitation.

What is the month with the shortest days in Olympia?

The month with the shortest days in Olympia, Greece, is December, with an average of 9.6h of daylight.

How many hours of daylight does Olympia have in December?

In December, the average length of the day is 9.6h.

What is the month with the least sunshine in Olympia?

With an average of 4h of sunshine, December has the least sunshine of the year in Olympia.

How many hours of sunshine does Olympia have in December?

In Olympia, the average sunshine in December is 4h.

What are the months with the lowest UV index in Olympia?

Months with the lowest UV index in Olympia are January and December, with an average maximum UV index of 2.

How high is the UV index in December in Olympia?

In December, the average daily maximum UV index in Olympia, Greece, is 2. A UV Index reading of 2, and below, represents a low health risk from the exposure to the Sun's UV rays.
Average temperature in December - Olympia, Greece
  • Average high temperature in December: 15°C

Warmest months (with the highest average high temperature) are July and August (30°C).
Months with the lowest average high temperature are January and February (14°C).

  • Average low temperature in December: 7°C

The month with the highest average low temperature is August (19°C).
Coldest months (with the lowest average low temperature) are January and February (6°C).

Average rainfall in December - Olympia, Greece
  • Average rainfall in December: 148mm

The wettest month (with the highest rainfall) is December (148mm).
The driest month (with the lowest rainfall) is July (6mm).

Average rainfall days in December - Olympia, Greece
  • Average rainfall days in December: 14 days

The month with the highest number of rainy days is December (14 days).
Months with the lowest number of rainy days are July and August (1 days).

Average daylight in December / Average sunshine in December - Olympia, Greece
  • Average daylight in December: 9.6h

The month with the longest days is June (Average daylight: 14.7h).
The month with shortest days is December (Average daylight: 9.6h).

  • Average sunshine in December: 4h

The month with most sunshine is July (Average sunshine: 13h).
The month with least sunshine is December (Average sunshine: 4h).

Average UV index in December - Olympia, Greece
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 10).
Months with the lowest UV index are January and December (UV index 2).