September weather forecast
Zadar, Croatia

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Weather in September

September brings the start of Autumn to Zadar but still carries over some elements of the city's summer climate. The weather subsides from August's heat, exhibiting a noticeable decline in daily temperature averages, but it still remains comfortably warm. Predictably, the onset of fall ushers in more rainfall, amounting to 63mm (2.48"). Daylight hours continue to decrease yet provide ample daylight for sightseeing and other outdoor activities. Despite the seasonal change, sea temperatures maintain their warmth from summer, providing suitable conditions for water-based activities.

Temperature

The transition to September results in a modest reduction in average high-temperature, moving from 28.3°C (82.9°F) in August to a still warm 23.5°C (74.3°F). An average temperature of 17.9°C (64.2°F) is recorded in Zadar during the nights in September.

Humidity

The average relative humidity in September is 64%.

Rainfall

In Zadar, Croatia, in September, during 10.6 rainfall days, 63mm (2.48") of precipitation is typically accumulated. In Zadar, during the entire year, the rain falls for 143.1 days and collects up to 707mm (27.83") of precipitation.

Snowfall

January, March through December are months without snowfall in Zadar.

Sea temperature

In September, the average sea temperature is 23.8°C (74.8°F).
Note: While a person's sensitivity to cold is personal, factors like sunshine, wind, and the temperature can influence their comfort in 23.8°C (74.8°F) waters. Olympians, for perspective, swim in waters between 25°C (77°F) and 28°C (82.4°F).

Daylight

In Zadar, the average length of the day in September is 12h and 31min.
On the first day of September in Zadar, sunrise is at 06:22 and sunset at 19:35. On the last day of the month, sunrise is at 06:56 and sunset at 18:41 CEST.

Sunshine

The average sunshine in September in Zadar, Croatia, is 10.6h.

UV index

In Zadar, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 5 during September translates into these guidelines:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Beware! Reflecting off water and sand, UV rays are much stronger.
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Frequently asked questions

What are September temperatures in Zadar?

The average high-temperature and low-temperature during September are 23.5°C (74.3°F) and 17.9°C (64.2°F) respectively. In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is appraised at 30°C (86°F).

What is the average humidity in September in Zadar?

In Zadar, the average relative humidity in September is 64%.

How much does it rain in Zadar in September?

In Zadar, in September, it is raining for 10.6 days, with typically 63mm (2.48") of accumulated precipitation.

When it does not snow in Zadar?

In Zadar, Croatia, snow does not fall in January, March through December.

What is the sea temperature in September in Zadar?

In Zadar, the average seawater temperature in September is 23.8°C (74.8°F). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 23.8°C (74.8°F) water may be enjoyable.

How many hours of daylight does Zadar have in September?

In September, the average day length in Zadar, Croatia, is 12h and 31min.

What time are sunrise and sunset in September in Zadar?

On the first day of September in Zadar, Croatia, sunrise is at 06:22 and sunset at 19:35. On the last day of the month, sunrise is at 06:56 and sunset at 18:41 CEST.

How many hours of sunshine does Zadar have in September?

In September, the average sunshine duration in Zadar is 10.6h.

What is the UV index intensity in September in Zadar?

In Zadar, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in September
Zadar, Croatia

Average temperature in September - Zadar, Croatia
  • Average high temperature in September: 23.5°C

The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (9.2°C).

  • Average low temperature in September: 17.9°C

The month with the highest average low temperature is August (21.7°C).
The coldest month (with the lowest average low temperature) is January (5.3°C).

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Average pressure in September
Zadar, Croatia

Average pressure in September - Zadar, Croatia
  • Average pressure in September: 1016.1mbar

The month with the highest atmospheric pressure is December (1019.2mbar).
The month with the lowest atmospheric pressure is July (1013.7mbar).

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Average wind speed in September
Zadar, Croatia

Average wind speed in September - Zadar, Croatia
  • Average wind speed in September: 13.3km/h

The windiest month (with the highest average wind speed) is February (18.9km/h).
The calmest month (with the lowest average wind speed) is July (11.9km/h).

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Average humidity in September
Zadar, Croatia

Average humidity in September - Zadar, Croatia
  • Average humidity in September: 64%

The month with the highest relative humidity is November (74%).
The month with the lowest relative humidity is August (60%).

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Average rainfall in September
Zadar, Croatia

Average rainfall in September - Zadar, Croatia
  • Average rainfall in September: 63mm

The wettest month (with the highest rainfall) is November (115mm).
The driest month (with the least rainfall) is August (28mm).

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Average rainfall days in September
Zadar, Croatia

Average rainfall days in September - Zadar, Croatia
  • Average rainfall days in September: 10.6 days

The month with the highest number of rainy days is November (15.3 days).
The month with the least rainy days is August (7.9 days).

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Average snowfall in September
Zadar, Croatia

Average snowfall in September - Zadar, Croatia
  • Average snowfall in September: 0mm

The month with the highest snowfall is February (2mm).
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0mm).

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Average snowfall days in September
Zadar, Croatia

Average snowfall days in September - Zadar, Croatia
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average sea temperature in September
Zadar, Croatia

Average sea temperature in September - Zadar, Croatia
  • Average sea temperature in September: 23.8°C

The best month for swimming (with the highest average sea temperature) is August (24.9°C).
The coldest month (with the lowest average sea temperature) is February (12.4°C).

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Average daylight in September /
Average sunshine in September
Zadar, Croatia

Average daylight in September / Average sunshine in September - Zadar, Croatia
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in September: 10h and 4min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and February (Average sunshine: 5h and 42min).

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Average sunshine days in September
Zadar, Croatia

Average sunshine days in September - Zadar, Croatia
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is August (20.8 days).
The month with the least sunshine days is November (13.4 days).

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Average UV index in September
Zadar, Croatia

Average UV index in September - Zadar, Croatia
  • Average UV index in September: 5

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).

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Average cloud cover in September
Zadar, Croatia

Average cloud cover in September - Zadar, Croatia
  • Average cloud cover in September: 20

The months with the most cloud cover are January and February (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 12).

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Average visibility in September
Zadar, Croatia

Average visibility in September - Zadar, Croatia
  • Average visibility in September: 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).

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Zadar, Croatia

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