September weather forecast
Tinley Park, IL

Share

Weather in September

September in Tinley Park brings the fall season. The city embarks on a journey transitioning from the sultry summer towards a crisper autumn. With decreasing daylight hours, the atmosphere adopts a more serene and tranquil ambiance. The abundance of green begins to fade gradually, being replaced by fall's typical hues. For September, the temperatures mark a noticeable drop displaying a high of 73.9°F (23.3°C) plunging to the low of 57.9°F (14.4°C).

Temperature

Tinley Park experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from 79.9°F (26.6°C) in August to a still warm 73.9°F (23.3°C). September witnesses an average low-temperature hovering around a moderate 57.9°F (14.4°C).

Humidity

In Tinley Park, the average relative humidity in September is 76%.

Rainfall

In Tinley Park, in September, during 10.4 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. In Tinley Park, during the entire year, the rain falls for 111.8 days and collects up to 11.18" (284mm) of precipitation.

Snowfall

May through September are months without snowfall in Tinley Park.

Daylight

In September, the average length of the day in Tinley Park is 12h and 28min.
On the first day of the month, sunrise is at 6:18 am and sunset at 7:23 pm. On the last day of September, sunrise is at 6:47 am and sunset at 6:34 pm CDT.

Sunshine

In September, the average sunshine in Tinley Park is 8.8h.

UV index

The average daily maximum UV index in September in Tinley Park, Illinois, is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
[Resources]

Frequently asked questions

What is the average September temperature in Tinley Park?

An average high-temperature, in September, in Tinley Park, is 73.9°F (23.3°C) and the average low-temperature is 57.9°F (14.4°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in July is calculated to be 87.8°F (31°C).

What is the average humidity in September in Tinley Park?

The average relative humidity in September in Tinley Park is 76%.

How many days does it rain in September in Tinley Park?

In Tinley Park, Illinois, during September, the rain falls for 10.4 days and regularly aggregates up to 0.98" (25mm) of precipitation.

When it does not snow in Tinley Park?

In Tinley Park, Illinois, snow does not fall in May through September.

Does it snow in Tinley Park in September?

In Tinley Park, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Tinley Park?

The average day length in September in Tinley Park, Illinois, is 12h and 28min.

What time are sunrise and sunset in September in Tinley Park?

In September, on the first day of the month, sunrise is at 6:18 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:34 pm CDT.

How many hours of sunshine does Tinley Park have in September?

In Tinley Park, the average sunshine duration in September is 8.8h.

What is the UV index intensity in September in Tinley Park?

In September, the average daily maximum UV index in Tinley Park is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Tinley Park, IL

Average temperature in September - Tinley Park, IL
  • Average high temperature in September: 73.9°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in September: 57.9°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).

[Resources]

Average pressure in September
Tinley Park, IL

Average pressure in September - Tinley Park, IL
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

[Resources]

Average wind speed in September
Tinley Park, IL

Average wind speed in September - Tinley Park, IL
  • Average wind speed in September: 7.2mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

[Resources]

Average humidity in September
Tinley Park, IL

Average humidity in September - Tinley Park, IL
  • Average humidity in September: 76%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).

[Resources]

Average rainfall in September
Tinley Park, IL

Average rainfall in September - Tinley Park, IL
  • Average rainfall in September: 0.98"

The wettest month (with the highest rainfall) is May (1.54").
The driest months (with the least rainfall) are January, February and December (0.55").

[Resources]

Average rainfall days in September
Tinley Park, IL

Average rainfall days in September - Tinley Park, IL
  • Average rainfall days in September: 10.4 days

The month with the highest number of rainy days is July (14.1 days).
The month with the least rainy days is February (4.1 days).

[Resources]

Average snowfall in September
Tinley Park, IL

Average snowfall in September - Tinley Park, IL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (1.3").
The months with the least snowfall are May, June, July, August and September (0").

[Resources]

Average snowfall days in September
Tinley Park, IL

Average snowfall days in September - Tinley Park, IL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

[Resources]

Average daylight in September /
Average sunshine in September
Tinley Park, IL

Average daylight in September / Average sunshine in September - Tinley Park, IL
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

[Resources]

Average sunshine days in September
Tinley Park, IL

Average sunshine days in September - Tinley Park, IL
  • Average sunshine days in September: 17 days

The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is June (13.1 days).

[Resources]

Average UV index in September
Tinley Park, IL

Average UV index in September - Tinley Park, IL
  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

[Resources]

Average cloud cover in September
Tinley Park, IL

Average cloud cover in September - Tinley Park, IL
  • Average cloud cover in September: 32

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).

[Resources]

Average visibility in September
Tinley Park, IL

Average visibility in September - Tinley Park, IL
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

[Resources]

Tinley Park, Illinois, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location