September weather forecastPerna, Croatia

September

Weather in September

September, the first month of the autumn in Perna, is also an agreeable month, with temperature in the range of an average high of 21.8°C (71.2°F) and an average low of 10°C (50°F).

Temperature

A change in temperatures is noted as August gives way to September, with average highs reducing from a moderately hot 28.4°C (83.1°F) to a pleasant 21.8°C (71.2°F). Throughout the September nights, Perna encounters a low-temperature of 10°C (50°F).

Humidity

In September, the average relative humidity is 77%.

Rainfall

In September, the rain falls for 10.6 days. Throughout September, 62mm (2.44") of precipitation is accumulated. In Perna, during the entire year, the rain falls for 118.1 days and collects up to 522mm (20.55") of precipitation.

Snowfall

May through September are months without snowfall in Perna.

Daylight

In Perna, the average length of the day in September is 12h and 32min.
On the first day of the month, sunrise is at 06:18 and sunset at 19:33. On the last day of September, sunrise is at 06:54 and sunset at 18:38 CEST.

Sunshine

In Perna, the average sunshine in September is 9h.

UV index

In Perna, Croatia, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 4 translates into these guidelines:
Undertake protective steps - Preventing sun damage is advised. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.

Frequently asked questions

An average high-temperature, in September, in Perna, is 21.8°C (71.2°F) and the average low-temperature is 10°C (50°F). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is computed to be 31°C (87.8°F).

In Perna, the average relative humidity in September is 77%.

In Perna, during September, the rain falls for 10.6 days and regularly aggregates up to 62mm (2.44") of precipitation.

In Perna, Croatia, snow does not fall in May through September.

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

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

On the first day of September, sunrise is at 06:18 and sunset at 19:33. On the last day of the month, sunrise is at 06:54 and sunset at 18:38 CEST.

In September, the average sunshine duration is 9h.

In Perna, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Perna, Croatia

  • Average high temperature in September: 21.8°C

The warmest month (with the highest average high temperature) is August (28.4°C).
The month with the lowest average high temperature is January (4.3°C).

  • Average low temperature in September: 10°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 (-2.4°C).

Average pressure in September
Perna, Croatia

  • Average pressure in September: 1017.3mbar

The month with the highest atmospheric pressure is December (1020.1mbar).
The months with the lowest atmospheric pressure are June and July (1014.6mbar).

Average wind speed in September
Perna, Croatia

  • Average wind speed in September: 6.1km/h

The windiest month (with the highest average wind speed) is March (8.8km/h).
The calmest month (with the lowest average wind speed) is August (5.8km/h).

Average humidity in September
Perna, Croatia

  • Average humidity in September: 77%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (70%).

Average rainfall in September
Perna, Croatia

  • Average rainfall in September: 62mm

The wettest month (with the highest rainfall) is May (67mm).
The driest month (with the least rainfall) is April (24mm).

Average rainfall days in September
Perna, Croatia

  • Average rainfall days in September: 10.6 days

The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (6.4 days).

Average snowfall in September
Perna, Croatia

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (97mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in September
Perna, Croatia

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6 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
Perna, Croatia

  • 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 0min

The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

Average sunshine days in September
Perna, Croatia

  • Average sunshine days in September: 17.6 days

The month with the most sunshine days is October (20.2 days).
The month with the least sunshine days is May (14.4 days).

Average UV index in September
Perna, 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).

Average cloud cover in September
Perna, Croatia

  • Average cloud cover in September: 35

The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 23).

Average visibility in September
Perna, Croatia

  • Average visibility in September: 8km

The months with the highest visibility are March, April, May, June, July and August (9km).
The month with the lowest visibility is January (7km).