July weather forecastMega Dereio, Greece
July
Weather in July
July, like June, in Mega Dereio, Greece, is a moderately hot summer month, with an average temperature ranging between min 20.4°C (68.7°F) and max 29.8°C (85.6°F).Temperature
July signals a minor shift in the average high-temperature, moving from June's moderately hot 26.4°C (79.5°F) to a still warm 29.8°C (85.6°F). Throughout July nights, Mega Dereio experiences a consistent temperature average of 20.4°C (68.7°F).Heat index
The heat index value for July is computed to be a hot 32°C (89.6°F). With unrelenting exposure and activity, one might experience exhaustion, leading to potential heat cramps.Factoring in the heat index, values are geared towards shaded areas with light breezes. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
In July, the average relative humidity in Mega Dereio is 58%.Rainfall
In Mega Dereio, in July, during 7.4 rainfall days, 19mm (0.75") of precipitation is typically accumulated. Throughout the year, in Mega Dereio, there are 139.1 rainfall days, and 598mm (23.54") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Mega Dereio.Daylight
The average length of the day in July is 14h and 49min.On the first day of the month, sunrise is at 05:46 and sunset at 20:52. On the last day of July, in Mega Dereio, sunrise is at 06:10 and sunset at 20:33 EEST.
Sunshine
July and August, with an average of 12h of sunshine, are months with the most sunshine in Mega Dereio.UV index
The months with the highest UV index are July and August, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In July, a daily UV index of 7 turns into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Mega Dereio, Greece
- Average high temperature in July: 29.8°C
The warmest month (with the highest average high temperature) is August (30.7°C).
The month with the lowest average high temperature is January (8.1°C).
- Average low temperature in July: 20.4°C
The month with the highest average low temperature is August (20.8°C).
The coldest month (with the lowest average low temperature) is January (3.5°C).
Average pressure in July
Mega Dereio, Greece
- Average pressure in July: 1011.6mbar
The month with the highest atmospheric pressure is December (1019.3mbar).
The month with the lowest atmospheric pressure is July (1011.6mbar).
Average wind speed in July
Mega Dereio, Greece
- Average wind speed in July: 13.5km/h
The windiest month (with the highest average wind speed) is February (18.4km/h).
The calmest month (with the lowest average wind speed) is June (12.3km/h).
Average humidity in July
Mega Dereio, Greece
- Average humidity in July: 58%
The months with the highest relative humidity are January and February (79%).
The month with the lowest relative humidity is August (55%).
Average rainfall in July
Mega Dereio, Greece
- Average rainfall in July: 19mm
The wettest month (with the highest rainfall) is January (89mm).
The driest month (with the least rainfall) is August (9mm).
Average rainfall days in July
Mega Dereio, Greece
- Average rainfall days in July: 7.4 days
The month with the highest number of rainy days is March (15.7 days).
The month with the least rainy days is August (3.9 days).
Average snowfall in July
Mega Dereio, Greece
- Average snowfall in July: 0mm
The month with the highest snowfall is January (14mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in July
Mega Dereio, Greece
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (2.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in July /
Average sunshine in July
Mega Dereio, Greece
- Average daylight in July: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in July: 12h and 0min
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: 5h and 6min).
Average sunshine days in July
Mega Dereio, Greece
- Average sunshine days in July: 22.1 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is February (12.8 days).
Average UV index in July
Mega Dereio, Greece
- Average UV index in July: 7
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in July
Mega Dereio, Greece
- Average cloud cover in July: 14
The months with the most cloud cover are January and February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in July
Mega Dereio, Greece
- Average visibility in July: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).





