September weather forecast
Rockport, IN

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Weather in September

September, the first month of the autumn in Rockport, is also a moderately hot month, with an average temperature ranging between max 79.7°F (26.5°C) and min 60.4°F (15.8°C).

Temperature

The average high-temperature slightly decreases in September, shifting from a warm 85.1°F (29.5°C) in August to a still moderately hot 79.7°F (26.5°C). Rockport's temperature lowers to a mean of 60.4°F (15.8°C) during the nights in September.

Humidity

In September, the average relative humidity is 74%.

Rainfall

September is the month with the least rainfall in Rockport. Rain falls for 11.8 days and accumulates 1.46" (37mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In September, the average length of the day in Rockport, Indiana, is 12h and 25min.
On the first day of September in Rockport, Indiana, sunrise is at 6:18 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:32 pm CDT.

Sunshine

In September, the average sunshine in Rockport, Indiana, is 8.8h.

UV index

In Rockport, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: During September, 5 as the daily maximum UV index converts into the following advice:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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 Rockport?

The average high-temperature and low-temperature during September are 79.7°F (26.5°C) and 60.4°F (15.8°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in August is evaluated at 95°F (35°C).

What is the average humidity in September in Rockport?

In Rockport, Indiana, the average relative humidity in September is 74%.

What is the driest month in Rockport?

The month with the least rainfall in Rockport is September, when the rain falls for 11.8 days and typically collects 1.46" (37mm) of precipitation.

How much does it rain in Rockport in September?

In September, the rain falls for 11.8 days. Throughout September, 1.46" (37mm) of precipitation is accumulated.

When it does not snow in Rockport?

In Rockport, snow does not fall in May through October.

How many hours of daylight does Rockport have in September?

In Rockport, the average day length in September is 12h and 25min.

When is the sunrise / sunset in September in Rockport?

In September, on the first day of the month, sunrise is at 6:18 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:32 pm CDT.

How long on average sun shines in September in Rockport?

The average sunshine duration in September is 8.8h.

How high is the UV index in September in Rockport?

In Rockport, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
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
Rockport, IN

Average temperature in September - Rockport, IN
  • Average high temperature in September: 79.7°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in September: 60.4°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

Average pressure in September
Rockport, IN

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in September
Rockport, IN

Average wind speed in September - Rockport, IN
  • Average wind speed in September: 5.9mph

The windiest month (with the highest average wind speed) is February (8.8mph).
The calmest month (with the lowest average wind speed) is July (5.3mph).

Average humidity in September
Rockport, IN

Average humidity in September - Rockport, IN
  • Average humidity in September: 74%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Rockport, IN

Average rainfall in September - Rockport, IN
  • Average rainfall in September: 1.46"

The wettest month (with the highest rainfall) is April (3.94").
The driest month (with the least rainfall) is September (1.46").

Average rainfall days in September
Rockport, IN

Average rainfall days in September - Rockport, IN
  • Average rainfall days in September: 11.8 days

The month with the highest number of rainy days is May (17.6 days).
The months with the least rainy days are October and November (9.5 days).

Average snowfall in September
Rockport, IN

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

The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Rockport, IN

Average snowfall days in September - Rockport, 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
Rockport, IN

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

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in September
Rockport, IN

Average sunshine days in September - Rockport, IN
  • Average sunshine days in September: 16.1 days

The month with the most sunshine days is October (19 days).
The month with the least sunshine days is May (11.1 days).

Average UV index in September
Rockport, IN

Average UV index in September - Rockport, 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 and December (UV index 2).

Average cloud cover in September
Rockport, IN

Average cloud cover in September - Rockport, IN
  • Average cloud cover in September: 30

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in September
Rockport, IN

Average visibility in September - Rockport, IN
  • 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).

Rockport, Indiana, USA

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