Vatican City
Vatican City
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Vatican City, Vatican City

The famous artistic St. Peter
The famous artistic St. Peter's Square in the Vatican, with the rest of the Vatican City in Rome, Italy
September, the first month of the autumn, in Vatican City, is still a warm month, with average temperature varying between 18.4°C (65.1°F) and 26.4°C (79.5°F).

Temperature

In September, the average high-temperature marginally drops, from a hot 31°C (87.8°F) in August, to a moderately hot 26.4°C (79.5°F). In September, the average low-temperature is 18.4°C (65.1°F).

Humidity

In September, the average relative humidity in Vatican City is 64%.

Rainfall

In Vatican City, during September, the rain falls for 11.6 days and regularly aggregates up to 46mm (1.81") of precipitation. In Vatican City, during the entire year, the rain falls for 132.8 days and collects up to 561mm (22.09") of precipitation.

Snowfall

January, March through December are months without snowfall in Vatican City.

Daylight

In September, the average length of the day in Vatican City is 12.5h.

Sunshine

In September, the average sunshine is 10.8h.

UV index

In Vatican City, Vatican City, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in Vatican City?

In September, the average high-temperature is 26.4°C (79.5°F), and the average low-temperature is 18.4°C (65.1°F).

What is the average humidity in September in Vatican City?

In September, the average relative humidity is 64%.

How many days does it rain in September in Vatican City?

In Vatican City, Vatican City, during September, the rain falls for 11.6 days and regularly aggregates up to 46mm (1.81") of precipitation.

When it does not snow in Vatican City?

January, March through December are months without snowfall in Vatican City, Vatican City.

How many hours of daylight does Vatican City have in September?

In September, the average length of the day in Vatican City is 12.5h.

How long on average sun shines in September in Vatican City?

In September, the average sunshine in Vatican City is 10.8h.

What is the UV index intensity in September in Vatican City?

In September, the average daily maximum UV index in Vatican City, Vatican City, is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from the exposure to the Sun's UV radiation.
Average temperature in September - Vatican City, Vatican City
  • Average high temperature in September: 26.4°C

The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (11.9°C).

  • Average low temperature in September: 18.4°C

The month with the highest average low temperature is August (21.6°C).
The coldest month (with the lowest average low temperature) is January (6.2°C).

Average humidity in September - Vatican City, Vatican City
  • Average humidity in September: 64%

Months with the highest relative humidity are January and November (74%).
The month with the lowest relative humidity is August (57%).

Average rainfall in September - Vatican City, Vatican City
  • Average rainfall in September: 46mm

The wettest month (with the highest rainfall) is November (113mm).
The driest month (with the lowest rainfall) is August (12mm).

Average rainfall days in September - Vatican City, Vatican City
  • Average rainfall days in September: 11.6 days

The month with the highest number of rainy days is November (14.6 days).
The month with the lowest number of rainy days is August (5.1 days).

Average snowfall in September - Vatican City, Vatican City
  • Average snowfall in September: 0mm

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

Average snowfall days in September - Vatican City, Vatican City
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.3 days).
Months with the lowest number of snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in September / Average sunshine in September - Vatican City, Vatican City
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.2h).

  • Average sunshine in September: 10.8h

Months with most sunshine are June, July and August (Average sunshine: 11.9h).
The month with least sunshine is January (Average sunshine: 5.9h).

Average UV index in September - Vatican City, Vatican City
  • Average UV index in September: 5

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