Your trips
Organise your trips easily with tabs
London
Detroit
Any date
+ Search
background

Detroit in August: Weather, Average temperature and Climate

Discover the weather for Detroit in August and if it’s a good time to travel (based on historical data).
Check flight prices to Detroit on Avionero:
August

Weather in Detroit in August 2025

Good Weather
Warm
🌧️
Rainy
🌊
Comfortable water
Weather for Detroit in August is typically good with an average maximum temperature of +27°C during the day, and approximately 8 sunny days monthly. Typically, there are about 12 rainy days with the total average precipitation that falls in August around 114 mm. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.

Average weather

☀️
+27°C
Avg. max. temperature
+6°C
Min.
+37°C
Max.
114 mm
Total precipitation
71%
Avg. humidity
3 m/s
Avg. wind
8 ☀️
Sunny Days
7 ⛅️
Cloudy
12 🌦
Rainy
Our opinion: Detroit has good weather in August.

Average temperature in Detroit in August

Here are the expected maximum, average and minimum temperatures in Detroit for August based on the historical data.
Last Year
Historical Data

The expected average maximum temperature in August is +26°C with a maximum of +31°C and a minimum of +11°C.

The average maximum temperature goes down 15% by the end of the month, compared with the beginning of the month, from +26°C to +23°C.

Is Detroit warm or cold in August?

Detroit is typically warm in August.

Maximum temperatures go down compared to the previous month from +28°C to +27°C. The minimum temperature also goes down from +19°C to +18°C.

It’s generally warm, but pack a long-sleeve shirt for evenings.

August is one of the warmest months in Detroit, here is the comparison with other months:

Water temperature in Detroit in August

Water in Detroit in August is Comfortable. It varies from +21°C to +25°C, with an average of +23°C. This is almost similar to the air temperature, which averages +27°C.

The water temperature in August is one of the warmest of the entire year:

The warmest water temperatures in Detroit are reached in August, when the average sea temperature rises to +23°C. The coldest water temperatures are in February, with an average of +1°C.

Can you swim in Detroit in August?

The water in Detroit in August is pretty comfortable (+23°C in average). Ideal for swimming, especially in outdoor pools and open water. Suitable for recreational and casual swimmers.
🦭
Cold
Below +16°C
🏄‍♂️
Fresh
16°C - 21°C
🏊
Comfortable
21°C - 25°C
👙
Warm
25°C - 28°C
🔥
Very warm
+28°C and up
Don’t forget a large beach towel or two for drying off.

Climate in Detroit in August

Detroit weather looks like this, on average, in August and the surrounding months.
JulyAugustSeptember
Avg. temperature
+28°C+27°C+23°C
Min. temperature
+10°C+6°C+1°C
Max. temperature
+38°C+37°C+35°C
Rainfall
96 mm114 mm80 mm
Wind
3 m/s3 m/s3 m/s
Avg. water temperature
+22°C+23°C+21°C
Humidity
66%71%72%
Air pressure
1014 HPa1015 HPa1016 HPa
Sunny days
889
Cloudy days
677
Rainy days
121211
Snowy days
000

August weather is still as good as in July. It’s getting colder in August. From +28°C in the day, the average maximum temperature lowers to +27°C. Prepare for more rain. Average rainfall goes from 96 mm to 114 mm. Humidity rises from 66% to 71%. The average wind speed doesn’t change much during August, staying around 3 m/s. The amount of sunny days stay about the same, averaging 8 sunny days during the month.

September brings much the same weather, it remains good.

Wind

Wind speed in Detroit in August based on historical data.
Last Year
Historical Data

The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Detroit is gradually increasing during August, going from 2 m/s to 2 m/s over the course of the month.

Rain

Amount of rainfall in mm during August in Detroit based on historical data.
Last Year
Historical Data
Total precipitation in August is about 864 mm, with a 58% chance of rain on a typical day. The maximum amount of rainfall per day is around 226 mm, which is considered heavy rain. August is a pretty wet month with over 18 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
August is one of the rainiest months in Detroit, here is a comparison with other months, total mm:
Detroit wettest month is August, where a typical day has a 39% chance of precipitation and 114 mm of rainfall per day. January, on the other hand, is the driest month with a mere 10% chance of precipitation and 26 mm of rainfall per day.

How was the weather last August in Detroit?

This is the weather in Detroit in August 2023:
1 August
☀️
+26°C
2 August
☀️
+28°C
3 August
☀️
+31°C
4 August
☀️
+29°C
5 August
☀️
+27°C
6 August
🌧️
+25°C
7 August
☁️
+22°C
8 August
☀️
+29°C
9 August
☀️
+29°C
10 August
☀️
+27°C
11 August
☀️
+27°C
12 August
🌧️
+28°C
13 August
☀️
+28°C
14 August
☀️
+25°C
15 August
🌧️
+23°C
16 August
☀️
+28°C
17 August
☀️
+25°C
18 August
☀️
+23°C
19 August
☀️
+26°C
20 August
☀️
+31°C
21 August
☀️
+29°C
22 August
☀️
+23°C
23 August
☁️
+27°C
24 August
🌧️
+31°C
25 August
☁️
+29°C
26 August
☀️
+25°C
27 August
☀️
+23°C
28 August
☀️
+25°C
29 August
☀️
+26°C
30 August
☁️
+23°C
31 August
☀️
+23°C
In August 2023 Detroit had 23 sunny days, 4 cloudy days, and 4 rainy days. The average maximum temperature was +26°C, with an absolute maximum of +31°C and a minimum of +22°C. The average humidity was 77%, with a maximum of 100% and a minimum of 46%. The average wind speed was 3 m/s, with a maximum of 10 m/s and a minimum of 0 m/s.
Are you planning a trip in August?

Climate Change over Years

This is how Detroit climate have been changing during last 43 years period.

The climate in Detroit in August has not changed much over the last 43 years.

The average temperature was the lowest in 1992 (+13°C) and the highest in 1998 (+17°C). The driest year was 1999 with only 460 mm of rainfall, and the wettest year was 2023 with 1977 mm.

FAQ

Frequently asked questions about the weather in Detroit in August:

Is August a good time to visit Detroit?

August is a really good time to go to Detroit. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Detroit.

Can you sunbathe in Detroit in August?

August is warm in Detroit. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.

Can you swim in Detroit in August?

Yes, the water temperature in Detroit in August is considered moderate and enjoyable for most people, averaging around +23°C.

Is Detroit rainy in August?

Detroit is often rainy in August. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Detroit in August?

Usually, it’s not very sunny in Detroit in August, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in USA

Check out the weather for other cities in USA.

Monthly weather in Detroit

Source of the data

For this page, we’ve looked at the typical weather in Detroit, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.