, like June
, in Portorož
, is another warm summer month, with an average temperature varying between 16.5°C (61.7°F) and 28.4°C (83.1°F).
With an average high-temperature of 28.4°C (83.1°F) and an average low-temperature of 16.5°C (61.7°F), July is the warmest month.
The average heat index in July is calculated to be 29°C (84.2°F). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.Note
: The heat index, also known as 'real feel', 'apparent temperature', 'feels like', or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like activity, differences in body mass, height, and shape, metabolic differences, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The least humid month in Portorož is July, with an average relative humidity of 50%.
In Portorož, in July, it is raining for 7.6 days, with typically 58mm (2.28") of accumulated precipitation. Throughout the year, there are 113.1 rainfall days, and 931mm (36.65") of precipitation is accumulated.
July and August
, with an average sea temperature of 24.8°C (76.6°F), are months with the warmest seawater in Portorož.Note
: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 24.8°C (76.6°F) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 25°C (77°F) to 28°C (82.4°F).)
In July, the average length of the day in Portorož is 15h and 16min.
On the first day of July in Portorož, sunrise is at 05:20 and sunset at 20:58. On the last day of the month, sunrise is at 05:48 and sunset at 20:35 CEST.
With an average of 10.2h of sunshine, July has the most sunshine of the year.
June and July, with an average maximum UV index of 8, are months with the highest UV index. A UV Index value of 8 to 10 symbolizes a very high health risk from unsafe exposure to UV radiation for average individuals.Note
: In July, the average maximum UV index of 8 translate into the following recommendations:
Take extra precautions. Protection against sun damage is required. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.