Herceg Novi
Montenegro
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Herceg Novi, Montenegro

September, the first month of the autumn, in Herceg Novi, is still a warm month, with average temperature fluctuating between 16.6°C (61.9°F) and 26.1°C (79°F).

Temperature

In September, the average high-temperature slightly decreases, from 29.4°C (84.9°F) in August, to a still moderately hot 26.1°C (79°F). The average low-temperature, is 16.6°C (61.9°F).

Rainfall

In Herceg Novi, it is raining for 7.8 days, with typically 142mm (5.6") of accumulated precipitation. Throughout the year, there are 128.6 rainfall days, and 1916mm (75.4") of precipitation is accumulated.

Sea temperature

In Herceg Novi, the average seawater temperature is 23°C (73.4°F).
Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 23°C (73.4°F) water. (FYI: The Olympic swimming competition requires a water temperature between 25°C (77°F) and 28°C (82.4°F).)

Daylight

The average length of the day in Herceg Novi is 12.5h.

Sunshine

The average sunshine in Herceg Novi is 8.3h.

UV index

In Herceg Novi, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to the UV radiation for the average person.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in September in Herceg Novi?

The average high-temperature, in September, is 26.1°C (79°F), while the average low-temperature is 16.6°C (61.9°F).

How many days does it rain in September in Herceg Novi?

In Herceg Novi, during September, the rain falls for 7.8 days and regularly aggregates up to 142mm (5.6") of precipitation.

How warm is the water in September in Herceg Novi?

In Herceg Novi, Montenegro, the average seawater temperature in September is 23°C (73.4°F). For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 23°C (73.4°F).

What is the average length of the day in September in Herceg Novi?

In Herceg Novi, the average length of the day in September is 12.5h.

How many hours of sunshine does Herceg Novi have in September?

The average sunshine in September is 8.3h.

What is the UV index reading in September in Herceg Novi?

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health threat from the exposure to the Sun's UV radiation.
Average temperature in September - Herceg Novi, Montenegro
  • Average high temperature in September: 26.1°C

Warmest months (with the highest average high temperature) are July and August (29.4°C).
The month with the lowest average high temperature is January (12.2°C).

  • Average low temperature in September: 16.6°C

Months with the highest average low temperature are July and August (19.3°C).
The coldest month (with the lowest average low temperature) is January (4.8°C).

Average rainfall in September - Herceg Novi, Montenegro
  • Average rainfall in September: 142mm

The wettest month (with the highest rainfall) is November (258mm).
The driest month (with the lowest rainfall) is July (47mm).

Average rainfall days in September - Herceg Novi, Montenegro
  • Average rainfall days in September: 7.8 days

The month with the highest number of rainy days is December (14.8 days).
The month with the lowest number of rainy days is July (5.7 days).

Average sea temperature in September - Herceg Novi, Montenegro
  • Average sea temperature in September: 23°C

The best month for swimming (with the highest average sea temperature) is August (25°C).
Coldest months (with the lowest average sea temperature) are January, February and March (14°C).

Average daylight in September / Average sunshine in September - Herceg Novi, Montenegro
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.3h).
The month with shortest days is December (Average daylight: 9.1h).

  • Average sunshine in September: 8.3h

The month with most sunshine is July (Average sunshine: 11.1h).
The month with least sunshine is December (Average sunshine: 3.3h).

Average UV index in September - Herceg Novi, Montenegro
  • Average UV index in September: 6

The month with the highest UV index is July (UV index 9).
Months with the lowest UV index are January and December (UV index 1).