September weather forecastMonreale, Italy

September

Weather in September

September, the first month of the autumn in Monreale, is still a warm month, with an average temperature fluctuating between 21.4°C (70.5°F) and 25.7°C (78.3°F).

Temperature

In September, the meteorological conditions change slightly, with the average high-temperature moving from 28.9°C (84°F) in August to a still warm 25.7°C (78.3°F). Monreale observes an average low-temperature of 21.4°C (70.5°F) during the slightly cooler nights of September.

Humidity

In September, the average relative humidity is 68%.

Rainfall

In September, in Monreale, Italy, the rain falls for 11.6 days. Throughout September, 40mm (1.57") of precipitation is accumulated. Throughout the year, there are 129.7 rainfall days, and 400mm (15.75") of precipitation is accumulated.

Snowfall

In Monreale, snow does not fall in January through November.

Daylight

The average length of the day in September in Monreale is 12h and 26min.
On the first day of the month, sunrise is at 06:37 and sunset at 19:36. On the last day of September, in Monreale, sunrise is at 07:02 and sunset at 18:51 CEST.

Sunshine

In September, the average sunshine is 11h.

UV index

The average daily maximum UV index in September in Monreale is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 6 during September leads to these advisories:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. 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. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.

Frequently asked questions

In September, in Monreale, the average high-temperature is 25.7°C (78.3°F), and the average low-temperature is 21.4°C (70.5°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in August is appraised at 31°C (87.8°F).

In September, the average relative humidity is 68%.

In Monreale, Italy, during September, the rain falls for 11.6 days and regularly aggregates up to 40mm (1.57") of precipitation.

In Monreale, Italy, snow does not fall in January through November.

The average day length in September is 12h and 26min.

On the first day of September in Monreale, Italy, sunrise is at 06:37 and sunset at 19:36. On the last day of the month, sunrise is at 07:02 and sunset at 18:51 CEST.

The average sunshine duration in September is 11h.

In September, the average daily maximum UV index in Monreale is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.
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
Monreale, Italy

  • Average high temperature in September: 25.7°C

The warmest month (with the highest average high temperature) is August (28.9°C).
The month with the lowest average high temperature is February (13.1°C).

  • Average low temperature in September: 21.4°C

The month with the highest average low temperature is August (23.7°C).
The coldest month (with the lowest average low temperature) is February (8.8°C).

Average pressure in September
Monreale, Italy

  • Average pressure in September: 1015.6mbar

The month with the highest atmospheric pressure is December (1019mbar).
The month with the lowest atmospheric pressure is July (1014.2mbar).

Average wind speed in September
Monreale, Italy

  • Average wind speed in September: 11.6km/h

The windiest month (with the highest average wind speed) is February (18km/h).
The calmest month (with the lowest average wind speed) is August (9.6km/h).

Average humidity in September
Monreale, Italy

  • Average humidity in September: 68%

The months with the highest relative humidity are January and March (76%).
The months with the lowest relative humidity are July and August (63%).

Average rainfall in September
Monreale, Italy

  • Average rainfall in September: 40mm

The wettest month (with the highest rainfall) is October (56mm).
The driest month (with the least rainfall) is July (4mm).

Average rainfall days in September
Monreale, Italy

  • Average rainfall days in September: 11.6 days

The month with the highest number of rainy days is January (16.9 days).
The month with the least rainy days is July (2.5 days).

Average snowfall in September
Monreale, Italy

  • Average snowfall in September: 0mm

The month with the highest snowfall is December (1mm).
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0mm).

Average snowfall days in September
Monreale, Italy

  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and December (0.1 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
Monreale, 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 June (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 48min).

Average sunshine days in September
Monreale, Italy

  • Average sunshine days in September: 15 days

The month with the most sunshine days is July (26.7 days).
The month with the least sunshine days is January (11.2 days).

Average UV index in September
Monreale, Italy

  • Average UV index in September: 6

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

Average cloud cover in September
Monreale, Italy

  • Average cloud cover in September: 17

The month with the most cloud cover is January (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 6).

Average visibility in September
Monreale, 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).