September weather forecastHelegiu, Romania

September

Weather in September

The first month of the autumn, September, is still a pleasant month in Helegiu, Romania, with temperature in the range of an average low of 10.4°C (50.7°F) and an average high of 21.7°C (71.1°F).

Temperature

As August transitions into September, Helegiu sees a drop in the average high-temperature, transitioning from a warm 27°C (80.6°F) to an agreeable 21.7°C (71.1°F). In September, the temperature drops to an average of 10.4°C (50.7°F) at night.

Humidity

The average relative humidity in September in Helegiu is 63%.

Rainfall

September and November are months with the least rain in Helegiu when the rain falls for 8.5 days and typically aggregates up to 20mm (0.79") of rain.

Snowfall

May through September are months without snowfall in Helegiu.

Daylight

In September, the average length of the day is 12h and 33min.
On the first day of the month, sunrise is at 06:33 and sunset at 19:51. On the last day of September, sunrise is at 07:10 and sunset at 18:54 EEST.

Sunshine

In Helegiu, the average sunshine in September is 10.1h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 4 in September translates into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.

Frequently asked questions

Helegiu in September has an average high-temperature of 21.7°C (71.1°F) and an average low-temperature of 10.4°C (50.7°F). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, is calculated to be 28°C (82.4°F).

The average relative humidity in September in Helegiu is 63%.

The months with the least rainfall in Helegiu, Romania, are September and November Rain falls for 8.5 days and accumulates 20mm (0.79") of rain.

In Helegiu, during September, the rain falls for 8.5 days and regularly aggregates up to 20mm (0.79") of precipitation.

In Helegiu, Romania, snow does not fall in May through September.

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

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

On the first day of September in Helegiu, Romania, sunrise is at 06:33 and sunset at 19:51. On the last day of the month, sunrise is at 07:10 and sunset at 18:54 EEST.

In Helegiu, the average sunshine duration in September is 10.1h.

In Helegiu, the average daily maximum UV index in September is 4. 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
Helegiu, Romania

  • Average high temperature in September: 21.7°C

The warmest month (with the highest average high temperature) is August (27°C).
The month with the lowest average high temperature is January (0.2°C).

  • Average low temperature in September: 10.4°C

The month with the highest average low temperature is August (14.2°C).
The coldest month (with the lowest average low temperature) is January (-5.6°C).

Average pressure in September
Helegiu, Romania

  • Average pressure in September: 1017.4mbar

The month with the highest atmospheric pressure is December (1020.1mbar).
The month with the lowest atmospheric pressure is June (1013.5mbar).

Average wind speed in September
Helegiu, Romania

  • Average wind speed in September: 9.1km/h

The windiest month (with the highest average wind speed) is April (10.9km/h).
The calmest month (with the lowest average wind speed) is August (8.7km/h).

Average humidity in September
Helegiu, Romania

  • Average humidity in September: 63%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (59%).

Average rainfall in September
Helegiu, Romania

  • Average rainfall in September: 20mm

The wettest month (with the highest rainfall) is June (87mm).
The driest months (with the least rainfall) are September and November (20mm).

Average rainfall days in September
Helegiu, Romania

  • Average rainfall days in September: 8.5 days

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is January (6.1 days).

Average snowfall in September
Helegiu, Romania

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (131mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in September
Helegiu, Romania

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (10 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
Helegiu, Romania

  • Average daylight in September: 12h and 30min

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

  • Average sunshine in September: 10h and 6min

The month with the most sunshine is August (Average sunshine: 11h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in September
Helegiu, Romania

  • Average sunshine days in September: 20.1 days

The month with the most sunshine days is August (21.1 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in September
Helegiu, Romania

  • Average UV index in September: 4

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

Average cloud cover in September
Helegiu, Romania

  • Average cloud cover in September: 28

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in September
Helegiu, Romania

  • Average visibility in September: 10km

The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February and December (8km).