September weather forecastGratteri, Italy

September

Weather in September

The first month of the autumn, September, is still a warm month in Gratteri, Italy, with temperature in the range of an average high of 24.6°C (76.3°F) and an average low of 19.7°C (67.5°F).

Temperature

With the beginning of September, the average high-temperature shows a small decrease, transitioning from a warm 28.3°C (82.9°F) in August to a still moderately hot 24.6°C (76.3°F). Gratteri, during the September nights, maintains an average temperature of 19.7°C (67.5°F), closely aligned with its daytime readings.

Humidity

In September, the average relative humidity in Gratteri is 69%.

Rainfall

In Gratteri, in September, it is raining for 10.9 days, with typically 42mm (1.65") of accumulated precipitation. Throughout the year, in Gratteri, there are 121.2 rainfall days, and 368mm (14.49") of precipitation is accumulated.

Snowfall

In Gratteri, snow does not fall in February through November.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of September, sunrise is at 06:34 and sunset at 19:33. On the last day of the month, sunrise is at 06:59 and sunset at 18:48 CEST.

Sunshine

The average sunshine in September is 11h.

UV index

The average daily maximum UV index in September in Gratteri is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 6 during September translates into the following directions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.

Frequently asked questions

An average high-temperature, in September, in Gratteri, is 24.6°C (76.3°F) and the average low-temperature is 19.7°C (67.5°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is estimated at 30°C (86°F).

In Gratteri, the average relative humidity in September is 69%.

In September, in Gratteri, the rain falls for 10.9 days. Throughout September, 42mm (1.65") of precipitation is accumulated.

In Gratteri, snow does not fall in February through November.

In September, the average day length is 12h and 26min.

On the first day of September, sunrise is at 06:34 and sunset at 19:33. On the last day of the month, sunrise is at 06:59 and sunset at 18:48 CEST.

The average sunshine duration in September in Gratteri is 11h.

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes 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
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Gratteri, Italy

  • Average high temperature in September: 24.6°C

The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (12.2°C).

  • Average low temperature in September: 19.7°C

The month with the highest average low temperature is August (21.7°C).
The coldest month (with the lowest average low temperature) is February (7.4°C).

Average pressure in September
Gratteri, Italy

  • Average pressure in September: 1015.7mbar

The month with the highest atmospheric pressure is December (1019.1mbar).
The month with the lowest atmospheric pressure is July (1014.3mbar).

Average wind speed in September
Gratteri, Italy

  • Average wind speed in September: 9.4km/h

The windiest month (with the highest average wind speed) is February (15km/h).
The calmest month (with the lowest average wind speed) is August (8.3km/h).

Average humidity in September
Gratteri, Italy

  • Average humidity in September: 69%

The month with the highest relative humidity is January (76%).
The months with the lowest relative humidity are July and August (64%).

Average rainfall in September
Gratteri, Italy

  • Average rainfall in September: 42mm

The wettest month (with the highest rainfall) is January (50mm).
The driest month (with the least rainfall) is July (6mm).

Average rainfall days in September
Gratteri, Italy

  • Average rainfall days in September: 10.9 days

The month with the highest number of rainy days is January (15 days).
The month with the least rainy days is July (3.1 days).

Average snowfall in September
Gratteri, Italy

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (4mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0mm).

Average snowfall days in September
Gratteri, Italy

  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and December (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

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

  • Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 11h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).

Average sunshine days in September
Gratteri, Italy

  • Average sunshine days in September: 16.2 days

The month with the most sunshine days is July (27.4 days).
The months with the least sunshine days are January and February (12.7 days).

Average UV index in September
Gratteri, Italy

  • Average UV index in September: 6

The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).

Average cloud cover in September
Gratteri, Italy

  • Average cloud cover in September: 17

The month with the most cloud cover is January (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 6).

Average visibility in September
Gratteri, 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).