July weather forecastPalermo, Italy
July
Weather in July
July records the zenith of summer weather in Palermo. There is a significant leap in the average high temperatures, peaking at 29.2°C (84.6°F), coupled with an escalation of sea temperature to 25.8°C (78.4°F) - the perfect settings for sunbathing and swimming. UV Index shoots up to 7, demanding adequate sun protection measures. Emphasizing the summer characteristics, the relative humidity drops to 59%. August maintains a similar weather outlook.Temperature
July's arrival in Palermo signals a modest temperature shift, moving from a warm 25.7°C (78.3°F) in June to a still moderately hot 29.2°C (84.6°F). Palermo reports an average nighttime low-temperature of 21.1°C (70°F) in July.Heat index
The heat index for July is evaluated at a hot 31°C (87.8°F). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.Heat index determinations are made taking into account the shade and light air movements. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
The least humid month is July, with an average relative humidity of 59%.Rainfall
The month with the least rainfall in Palermo is July, when the rain falls for 3.3 days and typically collects 5mm (0.2") of precipitation.Snowfall
February through November are months without snowfall in Palermo.Sea temperature
In July, the average sea temperature is 25.8°C (78.4°F).Note: For swimming, diving, or other water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) provide the most enjoyable experience for extended periods without discomfort.
Daylight
In Palermo, the average length of the day in July is 14h and 31min.On the first day of the month, sunrise is at 05:47 and sunset at 20:33. On the last day of July, in Palermo, sunrise is at 06:08 and sunset at 20:16 CEST.
Sunshine
June and July, with an average of 12.1h of sunshine, are months with the most sunshine.UV index
The months with the highest UV index in Palermo are July and August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In July, the UV index of 7 transforms into the following advice:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Warning! The reflection of sand and water increases the UV dose.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Palermo, Italy
- Average high temperature in July: 29.2°C
The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is February (12.5°C).
- Average low temperature in July: 21.1°C
The month with the highest average low temperature is August (22°C).
The coldest month (with the lowest average low temperature) is February (6.8°C).
Average pressure in July
Palermo, Italy
- Average pressure in July: 1014.3mbar
The month with the highest atmospheric pressure is December (1019mbar).
The months with the lowest atmospheric pressure are April and July (1014.3mbar).
Average wind speed in July
Palermo, Italy
- Average wind speed in July: 8.5km/h
The windiest month (with the highest average wind speed) is February (13.9km/h).
The calmest month (with the lowest average wind speed) is August (7.8km/h).
Average humidity in July
Palermo, Italy
- Average humidity in July: 59%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is July (59%).
Average rainfall in July
Palermo, Italy
- Average rainfall in July: 5mm
The wettest months (with the highest rainfall) are September and October (57mm).
The driest month (with the least rainfall) is July (5mm).
Average rainfall days in July
Palermo, Italy
- Average rainfall days in July: 3.3 days
The month with the highest number of rainy days is January (13.6 days).
The month with the least rainy days is July (3.3 days).
Average snowfall in July
Palermo, Italy
- Average snowfall in July: 0mm
The month with the highest snowfall is January (2mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in July
Palermo, Italy
- Average snowfall days in July: 0 days
The months with the highest number of snowfall days are January and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in July
Palermo, Italy
- 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 (14.3°C).
Average daylight in July /
Average sunshine in July
Palermo, Italy
- Average daylight in July: 14h and 30min
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: 12h and 6min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in July
Palermo, Italy
- Average sunshine days in July: 26.6 days
The month with the most sunshine days is July (26.6 days).
The month with the least sunshine days is February (14.3 days).
Average UV index in July
Palermo, Italy
- Average UV index in July: 7
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in July
Palermo, Italy
- Average cloud cover in July: 7
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in July
Palermo, Italy
- Average visibility in July: 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).
