September weather forecast
Peru, IN

Share

Weather in September

The first month of the autumn, September, is still a warm month in Peru, Indiana, with an average temperature varying between 56.5°F (13.6°C) and 74.7°F (23.7°C).

Temperature

Peru transitions into September recording an average high-temperature of a still moderately hot 74.7°F (23.7°C), closely aligning with the preceding month's temperature. During the nights in September, the temperature averages to a refreshing 56.5°F (13.6°C).

Humidity

The average relative humidity in September in Peru is 79%.

Rainfall

September is the month with the least rainfall in Peru. Rain falls for 13.2 days and accumulates 1.77" (45mm) of precipitation.

Snowfall

In Peru, snow does not fall in May through September.

Daylight

The average length of the day in September in Peru, Indiana, is 12h and 27min.
On the first day of the month, sunrise is at 7:12 am and sunset at 8:16 pm. On the last day of September, in Peru, sunrise is at 7:40 am and sunset at 7:27 pm EDT.

Sunshine

In September, the average sunshine is 8.2h.

UV index

The average daily maximum UV index in September in Peru is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index of 4 during September leads to these instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
[Resources]

Frequently asked questions

What are the temperatures in Peru in September?

In September, the average high-temperature and low-temperature are 74.7°F (23.7°C) and 56.5°F (13.6°C) respectively. In July, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is computed to be 87.8°F (31°C).

What is the average humidity in September in Peru?

In Peru, the average relative humidity in September is 79%.

What is the driest month in Peru?

The month with the least rainfall in Peru, Indiana, is September, when the rain falls for 13.2 days and typically collects 1.77" (45mm) of precipitation.

How many days does it rain in September in Peru?

In September, in Peru, Indiana, the rain falls for 13.2 days. Throughout September, 1.77" (45mm) of precipitation is accumulated.

When it does not snow in Peru?

May through September are months without snowfall.

Does it snow in Peru in September?

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

How many hours of daylight does Peru have in September?

In September, the average day length is 12h and 27min.

When are sunrise and sunset in September in Peru?

In September, on the first day of the month, sunrise is at 7:12 am and sunset at 8:16 pm. On the last day of the month, in Peru, sunrise is at 7:40 am and sunset at 7:27 pm EDT.

How long on average sun shines in September in Peru?

In September, the average sunshine duration is 8.2h.

What is the UV index reading in September in Peru?

In September, the average daily maximum UV index in Peru is 4. A UV Index reading of 3 to 5 represents a moderate health threat 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
Peru, IN

Average temperature in September - Peru, IN
  • Average high temperature in September: 74.7°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.9°F).

  • Average low temperature in September: 56.5°F

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).

[Resources]

Average pressure in September
Peru, IN

Average pressure in September - Peru, IN
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

[Resources]

Average wind speed in September
Peru, IN

Average wind speed in September - Peru, IN
  • Average wind speed in September: 7mph

The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

[Resources]

Average humidity in September
Peru, IN

Average humidity in September - Peru, IN
  • Average humidity in September: 79%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (73%).

[Resources]

Average rainfall in September
Peru, IN

Average rainfall in September - Peru, IN
  • Average rainfall in September: 1.77"

The wettest months (with the highest rainfall) are April and May (3.58").
The driest month (with the least rainfall) is September (1.77").

[Resources]

Average rainfall days in September
Peru, IN

Average rainfall days in September - Peru, IN
  • Average rainfall days in September: 13.2 days

The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is January (7.7 days).

[Resources]

Average snowfall in September
Peru, IN

Average snowfall in September - Peru, IN
  • Average snowfall in September: 0"

The month with the highest snowfall is February (4.25").
The months with the least snowfall are May, June, July, August and September (0").

[Resources]

Average snowfall days in September
Peru, IN

Average snowfall days in September - Peru, IN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight in September /
Average sunshine in September
Peru, IN

Average daylight in September / Average sunshine in September - Peru, IN
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 8h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

[Resources]

Average sunshine days in September
Peru, IN

Average sunshine days in September - Peru, IN
  • Average sunshine days in September: 13.6 days

The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is May (9.4 days).

[Resources]

Average UV index in September
Peru, IN

Average UV index in September - Peru, IN
  • Average UV index in September: 4

The months with the highest UV index are June and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

[Resources]

Average cloud cover in September
Peru, IN

Average cloud cover in September - Peru, IN
  • Average cloud cover in September: 35

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are June and July (Cloud cover 33).

[Resources]

Average visibility in September
Peru, IN

Average visibility in September - Peru, IN
  • Average visibility in September: 6mi

The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).

[Resources]

Peru, Indiana, USA

Weather forecast for your location

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