September weather forecastGrajena, Slovenia

September

Weather in September

The first month of the autumn, September, is still a refreshing month in Grajena, Slovenia, with an average temperature ranging between max 19.5°C (67.1°F) and min 10.1°C (50.2°F).

Temperature

Grajena observes a minor decrease in the average high-temperature with the arrival of September, falling from August's warm 25.1°C (77.2°F) to a refreshing 19.5°C (67.1°F). September in Grajena, Slovenia, generally records an average low-temperature of 10.1°C (50.2°F).

Humidity

In September, the average relative humidity is 81%.

Rainfall

In Grajena, during September, the rain falls for 14.5 days and regularly aggregates up to 77mm (3.03") of precipitation. Throughout the year, in Grajena, there are 188.4 rainfall days, and 935mm (36.81") of precipitation is accumulated.

Snowfall

In Grajena, snow does not fall in May through September.

Daylight

In September, the average length of the day is 12h and 33min.
On the first day of the month, sunrise is at 06:17 and sunset at 19:35. On the last day of September, sunrise is at 06:54 and sunset at 18:38 CEST.

Sunshine

The average sunshine in September in Grajena is 8.7h.

UV index

In September, the average daily maximum UV index in Grajena, Slovenia, is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: An average maximum UV index of 4 in September leads to these recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.

Updated: Jan 26, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

An average high-temperature, in September, in Grajena, is 19.5°C (67.1°F) and the average low-temperature is 10.1°C (50.2°F).

In September, the average relative humidity in Grajena, Slovenia, is 81%.

In Grajena, Slovenia, in September, during 14.5 rainfall days, 77mm (3.03") of precipitation is typically accumulated.

In Grajena, Slovenia, snow does not fall in May through September.

In Grajena, in September, it doesn't snow. In October, it regularly snows.

In September, the average day length in Grajena is 12h and 33min.

On the first day of September in Grajena, sunrise is at 06:17 and sunset at 19:35. On the last day of the month, sunrise is at 06:54 and sunset at 18:38 CEST.

The average sunshine duration in September in Grajena is 8.7h.

In Grajena, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

25.1°C

19.5°C

14.6°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

6.7km/h

6.8km/h

7.7km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

12.1

12.5

15.7

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Grajena, Slovenia

Average high temperature in September: 19.5°C

The warmest month (with the highest average high temperature) is August (25.1°C).
The month with the lowest average high temperature is January (2.5°C).

Average low temperature in September: 10.1°C

The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (-3.1°C).

Average pressure in September
Grajena, Slovenia

Average pressure in September: 1018.1mbar

The month with the highest atmospheric pressure is December (1020.6mbar).
The months with the lowest atmospheric pressure are May and June (1015.1mbar).

Average wind speed in September
Grajena, Slovenia

Average wind speed in September: 6.5km/h

The windiest month (with the highest average wind speed) is March (9km/h).
The calmest month (with the lowest average wind speed) is August (6.2km/h).

Average humidity in September
Grajena, Slovenia

Average humidity in September: 81%

The month with the highest relative humidity is November (86%).
The month with the lowest relative humidity is April (73%).

Average rainfall in September
Grajena, Slovenia

Average rainfall in September: 77mm

The wettest month (with the highest rainfall) is May (139mm).
The driest month (with the least rainfall) is January (38mm).

Average rainfall days in September
Grajena, Slovenia

Average rainfall days in September: 14.5 days

The month with the highest number of rainy days is May (24 days).
The month with the least rainy days is February (10.8 days).

Average snowfall in September
Grajena, Slovenia

Average snowfall in September: 0mm

The month with the highest snowfall is February (210mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in September
Grajena, Slovenia

Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 42min).

Average sunshine in September: 8h and 42min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).