September weather forecast
Sweetwater Lake, IN

Share

Weather in September

September, the first month of the autumn in Sweetwater Lake, is also a moderately hot month, with an average temperature fluctuating between 77.4°F (25.2°C) and 58.3°F (14.6°C).

Temperature

The arrival of September is marked by a minor reduction in average high-temperature, sliding from 83.3°F (28.5°C) in August to a still warm 77.4°F (25.2°C). An average temperature of 58.3°F (14.6°C) marks the nights in Sweetwater Lake in September.

Humidity

In September, the average relative humidity in Sweetwater Lake is 77%.

Rainfall

September is the month with the least rainfall in Sweetwater Lake. Rain falls for 12.3 days and accumulates 1.57" (40mm) of precipitation.

Snowfall

In Sweetwater Lake, snow does not fall in May through September.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of the month, sunrise is at 7:13 am and sunset at 8:14 pm. On the last day of September, in Sweetwater Lake, sunrise is at 7:40 am and sunset at 7:28 pm EDT.

Sunshine

In Sweetwater Lake, the average sunshine in September is 8.4h.

UV index

In Sweetwater Lake, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 5 during September morphs into the following directions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September in Sweetwater Lake?

The high-temperature, in September, in Sweetwater Lake, records 77.4°F (25.2°C), while the low-temperature is 58.3°F (14.6°C). The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is calculated to be 91.4°F (33°C).

What is the average humidity in September in Sweetwater Lake?

In September, the average relative humidity in Sweetwater Lake, Indiana, is 77%.

What is the driest month in Sweetwater Lake?

The month with the least rainfall in Sweetwater Lake, Indiana, is September, when the rain falls for 12.3 days and typically collects 1.57" (40mm) of precipitation.

How much does it rain in Sweetwater Lake in September?

In Sweetwater Lake, in September, it is raining for 12.3 days, with typically 1.57" (40mm) of accumulated precipitation.

When it does not snow in Sweetwater Lake?

May through September are months without snowfall in Sweetwater Lake.

Does it snow in Sweetwater Lake in September?

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

How many hours of daylight does Sweetwater Lake have in September?

In September, the average day length in Sweetwater Lake, Indiana, is 12h and 26min.

What time are sunrise and sunset in September in Sweetwater Lake?

In September, on the first day of the month, sunrise is at 7:13 am and sunset at 8:14 pm. On the last day of the month, in Sweetwater Lake, sunrise is at 7:40 am and sunset at 7:28 pm EDT.

How many hours of sunshine does Sweetwater Lake have in September?

The average sunshine duration in September in Sweetwater Lake, Indiana, is 8.4h.

What is the UV index intensity in September in Sweetwater Lake?

In September, the average daily maximum UV index in Sweetwater Lake is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to 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
Sweetwater Lake, IN

Average temperature in September - Sweetwater Lake, IN
  • Average high temperature in September: 77.4°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in September: 58.3°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in September
Sweetwater Lake, IN

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

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Sweetwater Lake, IN

Average wind speed in September - Sweetwater Lake, IN
  • Average wind speed in September: 5.7mph

The windiest months (with the highest average wind speed) are January and February (8.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in September
Sweetwater Lake, IN

Average humidity in September - Sweetwater Lake, IN
  • Average humidity in September: 77%

The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (75%).

Average rainfall in September
Sweetwater Lake, IN

Average rainfall in September - Sweetwater Lake, IN
  • Average rainfall in September: 1.57"

The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is September (1.57").

Average rainfall days in September
Sweetwater Lake, IN

Average rainfall days in September - Sweetwater Lake, IN
  • Average rainfall days in September: 12.3 days

The month with the highest number of rainy days is May (19.6 days).
The months with the least rainy days are January and February (8 days).

Average snowfall in September
Sweetwater Lake, IN

Average snowfall in September - Sweetwater Lake, IN
  • Average snowfall in September: 0"

The month with the highest snowfall is March (2.2").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Sweetwater Lake, IN

Average snowfall days in September - Sweetwater Lake, IN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Sweetwater Lake, IN

Average daylight in September / Average sunshine in September - Sweetwater Lake, IN
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in September
Sweetwater Lake, IN

Average sunshine days in September - Sweetwater Lake, IN
  • Average sunshine days in September: 15.3 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (8.6 days).

Average UV index in September
Sweetwater Lake, IN

Average UV index in September - Sweetwater Lake, IN
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

Average cloud cover in September
Sweetwater Lake, IN

Average cloud cover in September - Sweetwater Lake, IN
  • Average cloud cover in September: 33

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in September
Sweetwater Lake, IN

Average visibility in September - Sweetwater Lake, IN
  • Average visibility in September: 5mi

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

Sweetwater Lake, Indiana, USA

Weather forecast for your location

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