Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average sea temperature in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
July
Weather in July
The ideal sea water temperature of 25.8°C (78.4°F) and only 5.8 rainfall days, with 14mm (0.55") of accumulated rainfall, makes July the best time for swimming and other water activities.
Temperature
In Isthmia, July is the month with the highest recorded average temperatures, measuring a high of 30.7°C (87.3°F) and a low of 20.1°C (68.2°F).Heat index
For most parts of July, the heat index is appraised at a hot 32°C (89.6°F). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', combines both the air temperature and the humidity level to give a perceived human temperature. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. 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 of high significance for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Humidity
The average relative humidity in July is 51%.Rainfall
In Isthmia, Greece, in July, during 5.8 rainfall days, 14mm (0.55") of precipitation is typically accumulated. Throughout the year, in Isthmia, Greece, there are 121.1 rainfall days, and 396mm (15.59") of precipitation is accumulated.Snowfall
In Isthmia, snow does not fall in April through November.Sea temperature
In July, the average sea temperature is 25.8°C (78.4°F).Note: Surface water temperatures between 25°C (77°F) and 29°C (84.2°F) offer outstanding conditions for any water activity, providing extreme pleasure for extended periods.
Daylight
In July, the average length of the day is 14h and 29min.On the first day of July, sunrise is at 06:09 and sunset at 20:54. On the last day of the month, sunrise is at 06:30 and sunset at 20:37 EEST.
Sunshine
July and August, with an average of 11.9h of sunshine, are months with the most sunshine.UV index
The month with the highest UV index in Isthmia is July, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 7 in July converts into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Warning! Reflective surfaces like sand and water amplify the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year in Isthmia?
How hot does it get in Isthmia in July?
What is the average humidity in July in Isthmia?
How many days does it rain in July in Isthmia?
When it does not snow in Isthmia?
What is the water temperature in July in Isthmia?
What is the average length of the day in July in Isthmia?
When is the sunrise / sunset in July in Isthmia?
What are the months with the most sunshine in Isthmia?
How long on average sun shines in July in Isthmia?
When is the highest UV index in Isthmia?
What is the UV index intensity in July in Isthmia?
Average temperature in July
Isthmia, Greece
- Average high temperature in July: 30.7°C
The warmest month (with the highest average high temperature) is July (30.7°C).
The month with the lowest average high temperature is January (10.6°C).
- Average low temperature in July: 20.1°C
The month with the highest average low temperature is August (20.4°C).
The coldest month (with the lowest average low temperature) is January (4.1°C).
Average pressure in July
Isthmia, Greece
- Average pressure in July: 1011.6mbar
The month with the highest atmospheric pressure is December (1018.3mbar).
The month with the lowest atmospheric pressure is July (1011.6mbar).
Average wind speed in July
Isthmia, Greece
- Average wind speed in July: 8.5km/h
The windiest month (with the highest average wind speed) is August (9.5km/h).
The calmest month (with the lowest average wind speed) is November (7.6km/h).
Average humidity in July
Isthmia, Greece
- Average humidity in July: 51%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (50%).
Average rainfall in July
Isthmia, Greece
- Average rainfall in July: 14mm
The wettest month (with the highest rainfall) is March (53mm).
The driest month (with the least rainfall) is August (9mm).
Average rainfall days in July
Isthmia, Greece
- Average rainfall days in July: 5.8 days
The month with the highest number of rainy days is February (13.3 days).
The month with the least rainy days is August (5 days).
Average snowfall in July
Isthmia, Greece
- Average snowfall in July: 0mm
The month with the highest snowfall is December (15mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in July
Isthmia, Greece
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in July
Isthmia, Greece
- Average sea temperature in July: 25.8°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 (15.3°C).
Average daylight in July /
Average sunshine in July
Isthmia, Greece
- Average daylight in July: 14h and 3min
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 July: 11h and 5min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in July
Isthmia, Greece
- Average sunshine days in July: 24.7 days
The month with the most sunshine days is July (24.7 days).
The month with the least sunshine days is February (13.8 days).
Average UV index in July
Isthmia, Greece
- Average UV index in July: 7
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in July
Isthmia, Greece
- Average cloud cover in July: 11
The month with the most cloud cover is January (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in July
Isthmia, Greece
- Average visibility in July: 10km
The months with the highest visibility are March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February and December (9km).
