September weather forecast
Krk, Croatia

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Weather in September

As September arrives, Krk transitions towards the mild charm of autumn. Despite the gradual decline in temperatures, the conditions remain warm, commonly extending the swimming season due to the 23.3°C (73.9°F) sea temperature. Abated rainfall of 67mm (2.64") and lesser cloud coverage make the city tours enjoyable. The month represents an allure for those who seek a serene yet warm retreat from the tourist-heavy summer.

Temperature

September is characterized by a reduction in the average high-temperature, from a warm 26°C (78.8°F) in August to a pleasant 20.4°C (68.7°F). An average low-temperature of 12.5°C (54.5°F) is noted during the nights in September in Krk.

Humidity

In September, the average relative humidity in Krk is 74%.

Rainfall

In Krk, Croatia, in September, during 11.6 rainfall days, 67mm (2.64") of precipitation is typically accumulated. In Krk, during the entire year, the rain falls for 156.6 days and collects up to 771mm (30.35") of precipitation.

Snowfall

In Krk, snow does not fall in April through November.

Sea temperature

In Krk, Croatia, the average seawater temperature in September is 23.3°C (73.9°F).
Note: Factoring in a person's dislike for cold, combined with conditions like sunshine, wind, and temperature, a dip in 23.3°C (73.9°F) waters might be satisfying. (It is worth noting that the Olympic swimming waters are maintained between 25°C (77°F) and 28°C (82.4°F).)

Daylight

The average length of the day in September in Krk is 12h and 32min.
On the first day of the month, sunrise is at 06:24 and sunset at 19:38. On the last day of September, sunrise is at 06:59 and sunset at 18:43 CEST.

Sunshine

In Krk, the average sunshine in September is 10h.

UV index

In Krk, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the UV index of 4 transforms into the following advice:
Exercise prevention - Precautions against solar damage are endorsed. Around midday, solar radiation is most harmful; hence, exposure should be limited. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be on guard! The reflective nature of sand and water boosts UV exposure.
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Frequently asked questions

What are the temperatures in Krk in September?

September temperatures in Krk vary between a high-temperature of 20.4°C (68.7°F) and a low-temperature of 12.5°C (54.5°F).

What is the average humidity in September in Krk?

The average relative humidity in September in Krk is 74%.

How much does it rain in Krk in September?

In Krk, during September, the rain falls for 11.6 days and regularly aggregates up to 67mm (2.64") of precipitation.

When it does not snow in Krk?

In Krk, snow does not fall in April through November.

What is the water temperature in September in Krk?

In Krk, Croatia, the average seawater temperature in September is 23.3°C (73.9°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 23.3°C (73.9°F).

What is the average length of the day in September in Krk?

In Krk, Croatia, the average day length in September is 12h and 32min.

What time are sunrise and sunset in September in Krk?

In September, on the first day of the month, sunrise is at 06:24 and sunset at 19:38. On the last day of the month, in Krk, sunrise is at 06:59 and sunset at 18:43 CEST.

How many hours of sunshine does Krk have in September?

In Krk, Croatia, the average sunshine duration in September is 10h.

What is the UV index intensity in September in Krk?

In September, the average daily maximum UV index in Krk, Croatia, is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to 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
Krk, Croatia

Average temperature in September - Krk, Croatia
  • Average high temperature in September: 20.4°C

The warmest month (with the highest average high temperature) is August (26°C).
The month with the lowest average high temperature is January (4.4°C).

  • Average low temperature in September: 12.5°C

The month with the highest average low temperature is August (15.9°C).
The coldest month (with the lowest average low temperature) is January (0°C).

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Average pressure in September
Krk, Croatia

Average pressure in September - Krk, Croatia
  • Average pressure in September: 1016.7mbar

The month with the highest atmospheric pressure is December (1019.6mbar).
The month with the lowest atmospheric pressure is July (1014.2mbar).

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Average wind speed in September
Krk, Croatia

Average wind speed in September - Krk, Croatia
  • Average wind speed in September: 11.8km/h

The windiest month (with the highest average wind speed) is February (16.3km/h).
The calmest month (with the lowest average wind speed) is July (9.7km/h).

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Average humidity in September
Krk, Croatia

Average humidity in September - Krk, Croatia
  • Average humidity in September: 74%

The month with the highest relative humidity is November (84%).
The month with the lowest relative humidity is August (67%).

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Average rainfall in September
Krk, Croatia

Average rainfall in September - Krk, Croatia
  • Average rainfall in September: 67mm

The wettest month (with the highest rainfall) is November (116mm).
The driest month (with the least rainfall) is August (39mm).

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Average rainfall days in September
Krk, Croatia

Average rainfall days in September - Krk, Croatia
  • Average rainfall days in September: 11.6 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is August (9.4 days).

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Average snowfall in September
Krk, Croatia

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

The month with the highest snowfall is February (41mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

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Average snowfall days in September
Krk, Croatia

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

The month with the highest number of snowfall days is February (2.8 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
Krk, Croatia

Average sea temperature in September - Krk, Croatia
  • Average sea temperature in September: 23.3°C

The best month for swimming (with the highest average sea temperature) is August (24.5°C).
The coldest month (with the lowest average sea temperature) is February (10.9°C).

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

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

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in September: 10h and 0min

The month with the most sunshine is August (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

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Average sunshine days in September
Krk, Croatia

Average sunshine days in September - Krk, Croatia
  • Average sunshine days in September: 16.8 days

The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is May (10.4 days).

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Average UV index in September
Krk, Croatia

Average UV index in September - Krk, Croatia
  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in September
Krk, Croatia

Average cloud cover in September - Krk, Croatia
  • Average cloud cover in September: 27

The months with the most cloud cover are January and February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 16).

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Average visibility in September
Krk, Croatia

Average visibility in September - Krk, Croatia
  • Average visibility in September: 10km

The months with the highest visibility are April, May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, October, November and December (9km).

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Krk, Croatia

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