Athens
Greece
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Athens, Greece

August, the last month of the summer, in Athens, is another hot month, with average temperature fluctuating between 23.8°C (74.8°F) and 31°C (87.8°F).
An excellent water temperature of 26.3°C (79.3°F) and only 1.8 rainfall days, with 4mm (0.16") of accumulated rainfall, makes August a prime for swimming and other water activities.

Temperature

August is the warmest month, with an average high-temperature of 31°C (87.8°F) and an average low-temperature of 23.8°C (74.8°F).

Heat index

The average heat index is appraised at a hot 32.6°C (90.7°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'apparent temperature', 'real feel', or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like clothing, wind, differences in body mass, height, and shape, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The least humid month is August, with an average relative humidity of 50%.

Rainfall

August is the month with the least rainfall in Athens. Rain falls for 1.8 days and accumulates 4mm (0.16") of precipitation.

Snowfall

In Athens snow does not fall in April through December.

Sea temperature

With an average sea temperature of 26.3°C (79.3°F), August is the month with the warmest seawater in Athens.
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

The average length of the day in Athens is 13.6h.

Sunshine

July and August, with an average of 12h of sunshine, are months with the most sunshine in Athens.

UV index

Months with the highest UV index in Athens, Greece, are June through August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from the exposure to the Sun's UV rays for average individuals.
Note: In August, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the warmest month in Athens?

With an average high-temperature of 31°C (87.8°F) and an average low-temperature of 23.8°C (74.8°F), August is the warmest month in Athens.

What is the temperature in August in Athens?

In August, in Athens, Greece, the average high-temperature is 31°C (87.8°F), and the average low-temperature is 23.8°C (74.8°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), that combines both air temperature and relative humidity, in August is evaluated at 32.6°C (90.7°F).

What is the least humid month in Athens?

August is the least humid month in Athens, with an average relative humidity of 50%.

What is the average humidity in August in Athens?

The average relative humidity in August in Athens is 50%.

How many days does it rain in August in Athens?

In August, in Athens, the rain falls for 1.8 days. Throughout August, 4mm (0.16") of precipitation is accumulated.

What is the driest month in Athens?

The month with the least rainfall in Athens is August when the rain falls for 1.8 days and typically collects 4mm (0.16") of precipitation.

When it does not snow in Athens?

In Athens snow does not fall in April through December.

What is the month with the warmest sea water in Athens?

August is the month with the warmest seawater in Athens, with an average sea temperature of 26.3°C (79.3°F).

What is the sea water temperature in August in Athens?

In Athens, in August, the average water temperature is 26.3°C (79.3°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Athens have in August?

In August, the average length of the day in Athens, Greece, is 13.6h.

What are the months with the most sunshine in Athens?

July and August, with an average of 12h of sunshine, are months with the most sunshine in Athens.

How long on average sun shines in August in Athens?

In Athens, the average sunshine in August is 12h.

When is the highest UV index in Athens?

June through August, with an average maximum UV index of 7, are months with the highest UV index in Athens, Greece.

What is the UV index intensity in August in Athens?

In August, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in August - Athens, Greece
  • Average high temperature in August: 31°C

The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (12.1°C).

  • Average low temperature in August: 23.8°C

The month with the highest average low temperature is August (23.8°C).
The coldest month (with the lowest average low temperature) is January (7.3°C).

Average humidity in August - Athens, Greece
  • Average humidity in August: 50%

The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is August (50%).

Average rainfall in August - Athens, Greece
  • Average rainfall in August: 4mm

The wettest month (with the highest rainfall) is December (53mm).
The driest month (with the least rainfall) is August (4mm).

Average rainfall days in August - Athens, Greece
  • Average rainfall days in August: 1.8 days

The month with the highest number of rainy days is January (11.3 days).
The month with the least rainy days is August (1.8 days).

Average snowfall in August - Athens, Greece
  • Average snowfall in August: 0mm

The month with the highest snowfall is January (9mm).
Months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in August - Athens, Greece
  • Average snowfall days in August: 0 days

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

Average sea temperature in August - Athens, Greece
  • Average sea temperature in August: 26.3°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 August / Average sunshine in August - Athens, Greece
  • Average daylight in August: 13.6h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in August: 12h

Months with the most sunshine are July and August (Average sunshine: 12h).
The month with the least sunshine is January (Average sunshine: 5.6h).

Average UV index in August - Athens, Greece
  • Average UV index in August: 7

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).