August weather forecast
South Bend, IN

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Colorful river lights on the bridge of St. Joseph River in South Bend, Indiana
Colorful river lights on the bridge of St. Joseph River in South Bend, Indiana

Weather in August

As South Bend steps into August, the sweltering summer gives way to a slight drop in temperatures. The highs average 78.4°F (25.8°C), while lows hover around 61.7°F (16.5°C). Despite August being the second warmest month, the severity of the heat tones down comparatively. With the progression of April, this summer month, filled with brilliant sunshine and balmy nights, ushers the city into more temperate times. Edging towards September, weather conditions slowly lean towards cooler climates.

Temperature

A minimal variation is noted in South Bend's average high-temperature at the onset of August, reaching a still moderately hot 78.4°F (25.8°C) from July's 79.9°F (26.6°C). During August, the average low-temperature is recorded at a refreshing 61.7°F (16.5°C).

Humidity

The average relative humidity in August in South Bend is 82%.

Rainfall

In South Bend, in August, it is raining for 15.6 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, there are 160.2 rainfall days, and 25.31" (643mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 48min.
On the first day of August, sunrise is at 6:40 am and sunset at 9:02 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 8:19 pm EDT.

Sunshine

The average sunshine in August in South Bend is 9.5h.

UV index

June and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 6 in August interprets into the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for South Bend in August?

August temperatures vary between a high-temperature of 78.4°F (25.8°C) and a low-temperature of 61.7°F (16.5°C).

What is the average humidity in August?

The average relative humidity in August is 82%.

How much does it rain in August?

In South Bend, during August, the rain falls for 15.6 days and regularly aggregates up to 2.24" (57mm) of precipitation.

When it does not snow?

In South Bend, snow does not fall in June through September.

How many hours of daylight does South Bend have in August?

In South Bend, the average day length in August is 13h and 48min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:40 am and sunset at 9:02 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 8:19 pm EDT.

How long on average sun shines in August?

In South Bend, the average sunshine duration in August is 9.5h.

When is the highest UV index?

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

What is the UV index reading in August?

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high 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 August
South Bend, IN

Average temperature in August - South Bend, IN
  • Average high temperature in August: 78.4°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in August: 61.7°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in August
South Bend, IN

Average pressure in August - South Bend, IN
  • Average pressure in August: 29.98"Hg

The months with the highest atmospheric pressure are January and November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in August
South Bend, IN

Average wind speed in August - South Bend, IN
  • Average wind speed in August: 6.3mph

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average humidity in August
South Bend, IN

Average humidity in August - South Bend, IN
  • Average humidity in August: 82%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (75%).

Average rainfall in August
South Bend, IN

Average rainfall in August - South Bend, IN
  • Average rainfall in August: 2.24"

The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is February (1.38").

Average rainfall days in August
South Bend, IN

Average rainfall days in August - South Bend, IN
  • Average rainfall days in August: 15.6 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (7.5 days).

Average snowfall in August
South Bend, IN

Average snowfall in August - South Bend, IN
  • Average snowfall in August: 0"

The month with the highest snowfall is January (4.61").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
South Bend, IN

Average snowfall days in August - South Bend, IN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
South Bend, IN

Average daylight in August / Average sunshine in August - South Bend, IN
  • Average daylight in August: 13h and 5min

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

  • Average sunshine in August: 9h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in August
South Bend, IN

Average sunshine days in August - South Bend, IN
  • Average sunshine days in August: 11.5 days

The month with the most sunshine days is September (13.5 days).
The month with the least sunshine days is February (8.3 days).

Average UV index in August
South Bend, IN

Average UV index in August - South Bend, IN
  • Average UV index in August: 6

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).

Average cloud cover in August
South Bend, IN

Average cloud cover in August - South Bend, IN
  • Average cloud cover in August: 31

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in August
South Bend, IN

Average visibility in August - South Bend, IN
  • Average visibility in August: 6mi

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

South Bend, Indiana, USA

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