August weather forecastKeratsini, Greece
August
Weather in August
The last month of the summer, August, is another tropical month in Keratsini, Greece, with temperature in the range of an average low of 24.1°C (75.4°F) and an average high of 30.8°C (87.4°F).The perfect water temperature of 26.3°C (79.3°F) with 4mm (0.16") of accumulated rainfall and only 2 rainfall days, makes August a great period for swimming and other water activities.
Temperature
The arrival of August in Keratsini marks a slight shift to an average high-temperature of a still hot 30.8°C (87.4°F) from July's 31.1°C (88°F). During August, the nighttime temperature in Keratsini averages of 24.1°C (75.4°F).Heat index
The average heat index in August is evaluated at a tropical 32°C (89.6°F). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.Research indicates the heat index considers values in shaded locales and with light winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humidity
July and August, with an average relative humidity of 50%, are the least humid months.Rainfall
August is the month with the least rainfall in Keratsini. Rain falls for 2 days and accumulates 4mm (0.16") of precipitation.Snowfall
April through November are months without snowfall in Keratsini.Sea temperature
The month with the warmest seawater in Keratsini is August, with an average sea temperature of 26.3°C (79.3°F).Note: Water temperature ranging from 25°C (77°F) to 29°C (84.2°F) is seen as very warm and delightful by everyone. During these temperatures, water activities become enjoyable, without causing discomfort for extended periods.
Daylight
The average length of the day in August is 13h and 36min.On the first day of August in Keratsini, sunrise is at 06:29 and sunset at 20:34. On the last day of the month, sunrise is at 06:54 and sunset at 19:56 EEST.
Sunshine
With an average of 12h of sunshine, August has the most sunshine of the year in Keratsini.UV index
June through August, with an average maximum UV index of 7, are months with the highest UV index in Keratsini. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.Note: During August, 7 as the daily maximum UV index converts into the following advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Heads up! The reflection of sand and water notably intensifies UV rays from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Keratsini, Greece
- Average high temperature in August: 30.8°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 August: 24.1°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 August
Keratsini, Greece
- Average pressure in August: 1012.1mbar
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 August
Keratsini, Greece
- Average wind speed in August: 15.7km/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 August
Keratsini, Greece
- Average humidity in August: 50%
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 August
Keratsini, Greece
- Average rainfall in August: 4mm
The wettest month (with the highest rainfall) is December (39mm).
The driest month (with the least rainfall) is August (4mm).
Average rainfall days in August
Keratsini, Greece
- Average rainfall days in August: 2 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 August
Keratsini, Greece
- Average snowfall in August: 0mm
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 August
Keratsini, Greece
- Average snowfall days in August: 0 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 August
Keratsini, 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
Keratsini, Greece
- Average daylight in August: 13h and 36min
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 August: 12h and 0min
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 August
Keratsini, Greece
- Average sunshine days in August: 27.5 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 August
Keratsini, Greece
- Average UV index in August: 7
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 August
Keratsini, Greece
- Average cloud cover in August: 7
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 August
Keratsini, Greece
- Average visibility in August: 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).





