July weather forecast
Portorož, Slovenia

Weather in July

July, like June, in Portorož, Slovenia, is another warm summer month, with an average temperature varying between 16.5°C (61.7°F) and 28.4°C (83.1°F).

Temperature

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.

Heat index

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.

Humidity

The least humid month in Portorož is July, with an average relative humidity of 50%.

Rainfall

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.

Sea temperature

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).)

Daylight

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.

Sunshine

With an average of 10.2h of sunshine, July has the most sunshine of the year.

UV index

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.
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FAQ

What is the warmest month in Portorož?

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.

What is the temperature in July in Portorož?

In July, in Portorož, the average high-temperature is 28.4°C (83.1°F), and the average low-temperature is 16.5°C (61.7°F). in July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, is calculated to be 29°C (84.2°F).

What is the least humid month in Portorož?

With an average relative humidity of 50%, July is the least humid month in Portorož, Slovenia.

What is the average humidity in July in Portorož?

In Portorož, Slovenia, the average relative humidity in July is 50%.

How much does it rain in Portorož in July?

In July, the rain falls for 7.6 days. Throughout July, 58mm (2.28") of precipitation is accumulated.

What months are the sea warmest in Portorož?

The months with the warmest seawater are July and August, with an average sea temperature of 24.8°C (76.6°F).

What is the water temperature in July in Portorož?

In July, the average sea temperature in Portorož is 24.8°C (76.6°F). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 24.8°C (76.6°F) water.

What is the average length of the day in July in Portorož?

In Portorož, Slovenia, the average day length in July is 15h and 16min.

When are sunrise and sunset in July in Portorož?

In July, on the first day of the month, sunrise is at 05:20 and sunset at 20:58. On the last day of the month, in Portorož, Slovenia, sunrise is at 05:48 and sunset at 20:35 CEST.

What month has the most sunshine in Portorož?

July has the most sunshine of the year in Portorož, Slovenia, with an average of 10.2h of sunshine.

How long on average sun shines in July in Portorož?

The average sunshine duration in July in Portorož, Slovenia, is 10.2h.

What is the month with the highest UV index in Portorož?

The months with the highest UV index in Portorož, Slovenia, are June and July, with an average maximum UV index of 8.

How high is the UV index in July in Portorož?

In Portorož, Slovenia, the average daily maximum UV index in July is 8. A UV Index reading of 8 to 10 represents a very high health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average sunshine
Average UV index

Average temperature in July
Portorož, Slovenia

Average temperature in July - Portorož, Slovenia
  • Average high temperature in July: 28.4°C

The warmest month (with the highest average high temperature) is July (28.4°C).
The month with the lowest average high temperature is January (8.6°C).

  • Average low temperature in July: 16.5°C

The month with the highest average low temperature is July (16.5°C).
The coldest month (with the lowest average low temperature) is February (0.4°C).

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Average humidity in July
Portorož, Slovenia

Average humidity in July - Portorož, Slovenia
  • Average humidity in July: 50%

The month with the highest relative humidity is January (68%).
The month with the lowest relative humidity is July (50%).

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Average rainfall in July
Portorož, Slovenia

Average rainfall in July - Portorož, Slovenia
  • Average rainfall in July: 57.6mm

The wettest month (with the highest rainfall) is September (123.8mm).
The driest month (with the least rainfall) is February (47.1mm).

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Average rainfall days in July
Portorož, Slovenia

Average rainfall days in July - Portorož, Slovenia
  • Average rainfall days in July: 7.6 days

The month with the highest number of rainy days is May (11 days).
The month with the least rainy days is February (7.5 days).

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Average sea temperature in July
Portorož, Slovenia

Average sea temperature in July - Portorož, Slovenia
  • Average sea temperature in July: 24.8°C

The best months for swimming (with the highest average sea temperature) are July and August (24.8°C).
The coldest month (with the lowest average sea temperature) is February (9.3°C).

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Average daylight in July /
Average sunshine in July
Portorož, Slovenia

Average daylight in July / Average sunshine in July - Portorož, Slovenia
  • Average daylight in July: 15h and 16min

The month with the longest days is June (Average daylight: 15h and 37min).
The month with the shortest days is December (Average daylight: 8h and 47min).

  • Average sunshine in July: 10h and 12min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).

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Average UV index in July
Portorož, Slovenia

Average UV index in July - Portorož, Slovenia
  • Average UV index in July: 8

The months with the highest UV index are June and July (UV index 8).
The months with the lowest UV index are January, November and December (UV index 1).

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