August weather forecastSaint Joseph, MI
August
Weather in August
The last month of the summer, August, is another warm month in Saint Joseph, Michigan, with an average temperature ranging between max 76.6°F (24.8°C) and min 64.8°F (18.2°C).Temperature
Transitioning into August, Saint Joseph experiences an average high-temperature of a still moderately hot 76.6°F (24.8°C), marking a minor shift from the preceding month. An average minimum temperature of 64.8°F (18.2°C) is recorded in Saint Joseph during the month of August.Humidity
In Saint Joseph, Michigan, the average relative humidity in August is 79%.Rainfall
In Saint Joseph, in August, it is raining for 15.4 days, with typically 2.68" (68mm) of accumulated precipitation. Throughout the year, in Saint Joseph, there are 160 rainfall days, and 32.48" (825mm) of precipitation is accumulated.Snowfall
In Saint Joseph, snow does not fall in June through October.Daylight
In August, the average length of the day in Saint Joseph is 13h and 50min.On the first day of the month, sunrise is at 6:40 am and sunset at 9:04 pm. On the last day of August, in Saint Joseph, sunrise is at 7:11 am and sunset at 8:20 pm EDT.
Sunshine
In Saint Joseph, the average sunshine in August is 9.8h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.Note: In August, a daily UV index of 6 turns into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Saint Joseph, MI
- Average high temperature in August: 76.6°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in August: 64.8°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in August
Saint Joseph, MI
- Average pressure in August: 29.98"Hg
The months with the highest atmospheric pressure are January, March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Saint Joseph, MI
- Average wind speed in August: 8.1mph
The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).
Average humidity in August
Saint Joseph, MI
- Average humidity in August: 79%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in August
Saint Joseph, MI
- Average rainfall in August: 2.68"
The wettest month (with the highest rainfall) is June (4.06").
The driest month (with the least rainfall) is February (1.73").
Average rainfall days in August
Saint Joseph, MI
- Average rainfall days in August: 15.4 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in August
Saint Joseph, MI
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.46").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in August
Saint Joseph, MI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Saint Joseph, MI
- Average daylight in August: 13h and 48min
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 48min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in August
Saint Joseph, MI
- Average sunshine days in August: 12.3 days
The month with the most sunshine days is March (13.8 days).
The month with the least sunshine days is January (8.3 days).
Average UV index in August
Saint Joseph, MI
- 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
Saint Joseph, MI
- Average cloud cover in August: 27
The month with the most cloud cover is January (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in August
Saint Joseph, MI
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





