August weather forecast
Westport, IN

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Weather in August

The last month of the summer, August, is also a moderately hot month in Westport, Indiana, with an average temperature ranging between max 82°F (27.8°C) and min 63.5°F (17.5°C).

Temperature

Westport records an average high-temperature of a still warm 82°F (27.8°C) in August, closely mirroring the climate of the previous month. During August, Westport records an average temperature of 63.5°F (17.5°C) at night.

Heat index

August's mean heat index is calculated to be a hot 87.8°F (31°C). Exhaustion becomes probable with enduring exposure and activity, potentially causing heat cramps.
Realize that the values for the heat index are set for shaded places and light winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.

Humidity

In August, the average relative humidity is 79%.

Rainfall

In Westport, Indiana, in August, it is raining for 12.3 days, with typically 1.38" (35mm) of accumulated precipitation. Throughout the year, there are 137.6 rainfall days, and 17.99" (457mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In Westport, the average length of the day in August is 13h and 39min.
On the first day of August, sunrise is at 6:43 am and sunset at 8:53 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 8:14 pm EDT.

Sunshine

In Westport, the average sunshine in August is 9.6h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.
Note: The daily high UV index of 6 in August translates into this advice:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature?

In August, in Westport, the average high-temperature is 82°F (27.8°C), and the average low-temperature is 63.5°F (17.5°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is calculated to be 87.8°F (31°C).

What is the average humidity in August?

In August, the average relative humidity is 79%.

How many days does it rain in August?

In Westport, in August, it is raining for 12.3 days, with typically 1.38" (35mm) of accumulated precipitation.

When it does not snow?

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

How many hours of daylight does Westport have in August?

The average day length in August is 13h and 39min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:43 am and sunset at 8:53 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 8:14 pm EDT.

How many hours of sunshine does Westport have in August?

In August, the average sunshine duration is 9.6h.

What is the month with the highest UV index?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

How high is the UV index in August?

In Westport, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health risk 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 August
Westport, IN

Average temperature in August - Westport, IN
  • Average high temperature in August: 82°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34.9°F).

  • Average low temperature in August: 63.5°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 (22.8°F).

Average pressure in August
Westport, IN

Average pressure in August - Westport, IN
  • Average pressure in August: 29.98"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 August
Westport, IN

Average wind speed in August - Westport, IN
  • Average wind speed in August: 5.4mph

The windiest months (with the highest average wind speed) are January and February (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.4mph).

Average humidity in August
Westport, IN

Average humidity in August - Westport, IN
  • Average humidity in August: 79%

The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (74%).

Average rainfall in August
Westport, IN

Average rainfall in August - Westport, IN
  • Average rainfall in August: 1.38"

The wettest month (with the highest rainfall) is May (2.01").
The driest month (with the least rainfall) is September (0.98").

Average rainfall days in August
Westport, IN

Average rainfall days in August - Westport, IN
  • Average rainfall days in August: 12.3 days

The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is February (7.9 days).

Average snowfall in August
Westport, IN

Average snowfall in August - Westport, IN
  • Average snowfall in August: 0"

The month with the highest snowfall is March (1.46").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Westport, IN

Average snowfall days in August - Westport, IN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Westport, IN

Average daylight in August / Average sunshine in August - Westport, IN
  • Average daylight in August: 13h and 4min

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 August: 9h and 4min

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 0min).

Average sunshine days in August
Westport, IN

Average sunshine days in August - Westport, IN
  • Average sunshine days in August: 15.4 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (12.4 days).

Average UV index in August
Westport, IN

Average UV index in August - Westport, IN
  • Average UV index in August: 6

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

Average cloud cover in August
Westport, IN

Average cloud cover in August - Westport, IN
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in August
Westport, IN

Average visibility in August - Westport, IN
  • Average visibility in August: 6mi

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

Westport, Indiana, USA

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