September weather forecastComiso, Italy

September

Weather in September

September, the first month of the autumn in Comiso, is also a moderately hot month, with temperature in the range of an average high of 27.5°C (81.5°F) and an average low of 20.7°C (69.3°F).

Temperature

In September, the average high-temperature marginally decreases from a tropical 31.8°C (89.2°F) in August to a warm 27.5°C (81.5°F). Throughout September nights, Comiso experiences a consistent temperature average of 20.7°C (69.3°F).

Heat index

September's mean heat index is estimated at 29°C (84.2°F). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.

Humidity

The average relative humidity in September is 66%.

Rainfall

In Comiso, during September, the rain falls for 9.3 days and regularly aggregates up to 31mm (1.22") of precipitation. Throughout the year, in Comiso, there are 102.1 rainfall days, and 317mm (12.48") of precipitation is accumulated.

Snowfall

February through December are months without snowfall in Comiso.

Daylight

In September, the average length of the day in Comiso, Italy, is 12h and 25min.
On the first day of September in Comiso, sunrise is at 06:32 and sunset at 19:30. On the last day of the month, sunrise is at 06:56 and sunset at 18:46 CEST.

Sunshine

In September, the average sunshine in Comiso is 10.8h.

UV index

In Comiso, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 6 during September, leads to the following recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.

Frequently asked questions

In Comiso, 27.5°C (81.5°F) is the average high-temperature and 20.7°C (69.3°F) is the average low-temperature during September. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, in September is estimated at 29°C (84.2°F).

In Comiso, the average relative humidity in September is 66%.

In Comiso, in September, it is raining for 9.3 days, with typically 31mm (1.22") of accumulated precipitation.

February through December are months without snowfall in Comiso, Italy.

In Comiso, Italy, the average day length in September is 12h and 25min.

On the first day of September in Comiso, Italy, sunrise is at 06:32 and sunset at 19:30. On the last day of the month, sunrise is at 06:56 and sunset at 18:46 CEST.

In Comiso, Italy, the average sunshine duration in September is 10.8h.

The average daily maximum UV index in September in Comiso, Italy, is 6. A UV Index estimate of 6 to 7 represents a high 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 days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Comiso, Italy

  • Average high temperature in September: 27.5°C

The warmest months (with the highest average high temperature) are July and August (31.8°C).
The month with the lowest average high temperature is January (13.9°C).

  • Average low temperature in September: 20.7°C

The month with the highest average low temperature is August (23.2°C).
The coldest month (with the lowest average low temperature) is February (7.3°C).

Average pressure in September
Comiso, Italy

  • Average pressure in September: 1015.6mbar

The month with the highest atmospheric pressure is December (1019.1mbar).
The month with the lowest atmospheric pressure is July (1014.1mbar).

Average wind speed in September
Comiso, Italy

  • Average wind speed in September: 10.6km/h

The windiest month (with the highest average wind speed) is February (15.8km/h).
The calmest month (with the lowest average wind speed) is August (9.1km/h).

Average humidity in September
Comiso, Italy

  • Average humidity in September: 66%

The months with the highest relative humidity are January and November (78%).
The month with the lowest relative humidity is July (54%).

Average rainfall in September
Comiso, Italy

  • Average rainfall in September: 31mm

The wettest month (with the highest rainfall) is November (59mm).
The driest month (with the least rainfall) is July (3mm).

Average rainfall days in September
Comiso, Italy

  • Average rainfall days in September: 9.3 days

The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is July (2.3 days).

Average snowfall days in September
Comiso, Italy

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in September /
Average sunshine in September
Comiso, Italy

  • Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 10h and 48min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 12min).

Average sunshine days in September
Comiso, Italy

  • Average sunshine days in September: 17.5 days

The month with the most sunshine days is July (27.1 days).
The month with the least sunshine days is February (14.3 days).

Average UV index in September
Comiso, Italy

  • Average UV index in September: 6

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and February (UV index 3).

Average cloud cover in September
Comiso, Italy

  • Average cloud cover in September: 18

The month with the most cloud cover is January (Cloud cover 31).
The month with the least cloud cover is July (Cloud cover 6).

Average visibility in September
Comiso, Italy

  • 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).