September weather forecast
Štrmac, Croatia

September

Weather in September

The first month of the autumn, September, is still a pleasant month in Štrmac, Croatia, with an average temperature varying between 22.9°C (73.2°F) and 19°C (66.2°F).

Temperature

As August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from a warm 27.3°C (81.1°F) to a pleasant 22.9°C (73.2°F). The nights of September in Štrmac anticipate a slight dip from daytime high temperatures, settling to an average low-temperature of 19°C (66.2°F).

Humidity

In September, the average relative humidity in Štrmac is 68%.

Rainfall

In Štrmac, during September, the rain falls for 13.2 days and regularly aggregates up to 107mm (4.21") of precipitation. Throughout the year, there are 166.2 rainfall days, and 950mm (37.4") of precipitation is accumulated.

Snowfall

April through December are months without snowfall in Štrmac.

Daylight

In Štrmac, the average length of the day in September is 12h and 32min.
On the first day of the month, sunrise is at 06:25 and sunset at 19:40. On the last day of September, in Štrmac, sunrise is at 07:00 and sunset at 18:45 CEST.

Sunshine

In September, the average sunshine is 10.4h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 5 in September leads to these recommendations:
Adopt protective measures - It is advised to guard against sun damage. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Frequently asked questions

What are the temperatures in Štrmac in September?
The high-temperature during September is 22.9°C (73.2°F) and the low-temperature is 19°C (66.2°F). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is appraised at 29°C (84.2°F).
What is the average humidity in September in Štrmac?
The average relative humidity in September is 68%.
How much does it rain in Štrmac in September?
In September, in Štrmac, the rain falls for 13.2 days. Throughout September, 107mm (4.21") of precipitation is accumulated.
When it does not snow in Štrmac?
April through December are months without snowfall.
How many hours of daylight does Štrmac have in September?
In Štrmac, the average day length in September is 12h and 32min.
When is the sunrise / sunset in September in Štrmac?
In September, on the first day of the month, sunrise is at 06:25 and sunset at 19:40. On the last day of the month, in Štrmac, sunrise is at 07:00 and sunset at 18:45 CEST.
How many hours of sunshine does Štrmac have in September?
The average sunshine duration in September in Štrmac, Croatia, is 10.4h.
What is the UV index reading in September in Štrmac?
In Štrmac, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Štrmac, Croatia
Average temperature in September
Štrmac, Croatia
  • Average high temperature in September: 22.9°C

The warmest month (with the highest average high temperature) is August (27.3°C).
The month with the lowest average high temperature is January (9°C).

  • Average low temperature in September: 19°C

The month with the highest average low temperature is August (22.7°C).
The coldest month (with the lowest average low temperature) is January (6.1°C).

Average pressure in September - Štrmac, Croatia
Average pressure in September
Štrmac, Croatia
  • Average pressure in September: 1016.4mbar

The month with the highest atmospheric pressure is December (1019.3mbar).
The month with the lowest atmospheric pressure is July (1014mbar).

Average wind speed in September - Štrmac, Croatia
Average wind speed in September
Štrmac, Croatia
  • Average wind speed in September: 14.7km/h

The windiest month (with the highest average wind speed) is February (19.4km/h).
The calmest months (with the lowest average wind speed) are July and August (12.1km/h).

Average humidity in September - Štrmac, Croatia
Average humidity in September
Štrmac, Croatia
  • Average humidity in September: 68%

The month with the highest relative humidity is November (76%).
The month with the lowest relative humidity is August (64%).

Average rainfall in September - Štrmac, Croatia
Average rainfall in September
Štrmac, Croatia
  • Average rainfall in September: 107mm

The wettest month (with the highest rainfall) is November (140mm).
The driest month (with the least rainfall) is April (52mm).

Average rainfall days in September - Štrmac, Croatia
Average rainfall days in September
Štrmac, Croatia
  • Average rainfall days in September: 13.2 days

The month with the highest number of rainy days is November (16.9 days).
The month with the least rainy days is August (10.6 days).

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

The month with the highest snowfall is January (7mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).

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

The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in September / Average sunshine in September - Štrmac, Croatia
Average daylight in September /
Average sunshine in September
Štrmac, 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 2min

The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average sunshine days in September - Štrmac, Croatia
Average sunshine days in September
Štrmac, Croatia
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is August (19.3 days).
The month with the least sunshine days is November (11.8 days).

Average UV index in September - Štrmac, Croatia
Average UV index in September
Štrmac, 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).

Average cloud cover in September - Štrmac, Croatia
Average cloud cover in September
Štrmac, Croatia
  • Average cloud cover in September: 24

The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 14).

Average visibility in September - Štrmac, Croatia
Average visibility in September
Štrmac, 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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