September weather forecastGračišče, Slovenia

September

Weather in September

The first month of the autumn, September, is also an agreeable month in Gračišče, Slovenia, with an average temperature fluctuating between 15°C (59°F) and 22.2°C (72°F).

Temperature

The transition into September is accompanied by a temperature decrease, with the average high-temperature shifting from a warm 27.3°C (81.1°F) in August to a pleasant 22.2°C (72°F). Nighttime temperatures hover around an average low of 15°C (59°F) in September.

Humidity

The average relative humidity in September is 73%.

Rainfall

In Gračišče, in September, during 14.1 rainfall days, 122mm (4.8") of precipitation is typically accumulated. In Gračišče, during the entire year, the rain falls for 183.9 days and collects up to 1093mm (43.03") of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

The average length of the day in September is 12h and 32min.
On the first day of September, sunrise is at 06:26 and sunset at 19:42. On the last day of the month, sunrise is at 07:02 and sunset at 18:46 CEST.

Sunshine

The average sunshine in September is 9.9h.

UV index

In Gračišče, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, an average UV index of 5 transforms into the following instructions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.

Frequently asked questions

Gračišče in September has an average high-temperature of 22.2°C (72°F) and an average low-temperature of 15°C (59°F). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, is appraised at 29°C (84.2°F).

The average relative humidity in September is 73%.

In Gračišče, in September, it is raining for 14.1 days, with typically 122mm (4.8") of accumulated precipitation.

In Gračišče, Slovenia, snow does not fall in April through November.

The average day length in September is 12h and 32min.

On the first day of September, sunrise is at 06:26 and sunset at 19:42. On the last day of the month, sunrise is at 07:02 and sunset at 18:46 CEST.

In September, the average sunshine duration is 9.9h.

In September, the average daily maximum UV index is 5. A UV Index reading 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Gračišče, Slovenia

  • Average high temperature in September: 22.2°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 (6.4°C).

  • Average low temperature in September: 15°C

The month with the highest average low temperature is August (18.8°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).

Average pressure in September
Gračišče, Slovenia

  • Average pressure in September: 1016.9mbar

The month with the highest atmospheric pressure is December (1019.7mbar).
The months with the lowest atmospheric pressure are May, June and July (1014.6mbar).

Average wind speed in September
Gračišče, Slovenia

  • Average wind speed in September: 10.4km/h

The windiest month (with the highest average wind speed) is February (12.5km/h).
The calmest months (with the lowest average wind speed) are July and August (8.9km/h).

Average humidity in September
Gračišče, Slovenia

  • Average humidity in September: 73%

The month with the highest relative humidity is November (81%).
The months with the lowest relative humidity are July and August (68%).

Average rainfall in September
Gračišče, Slovenia

  • Average rainfall in September: 122mm

The wettest month (with the highest rainfall) is November (144mm).
The driest month (with the least rainfall) is January (64mm).

Average rainfall days in September
Gračišče, Slovenia

  • Average rainfall days in September: 14.1 days

The month with the highest number of rainy days is May (21.2 days).
The month with the least rainy days is August (12.6 days).

Average snowfall in September
Gračišče, Slovenia

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (11mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in September
Gračišče, Slovenia

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Gračišče, Slovenia

  • Average daylight in September: 12h and 30min

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: 9h and 54min

The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in September
Gračišče, Slovenia

  • Average sunshine days in September: 14.2 days

The month with the most sunshine days is October (15.3 days).
The month with the least sunshine days is May (6.6 days).

Average UV index in September
Gračišče, Slovenia

  • Average UV index in September: 5

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

Average cloud cover in September
Gračišče, Slovenia

  • Average cloud cover in September: 28

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in September
Gračišče, Slovenia

  • 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).