August weather forecastJohannesburg, MI
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Johannesburg, Michigan, with an average temperature varying between 76.5°F (24.7°C) and 56.5°F (13.6°C).Temperature
Johannesburg's shift into August sets the average high-temperature at a still moderately hot 76.5°F (24.7°C), a figure that deviates only slightly from July's 78.1°F (25.6°C). In the month of August, Johannesburg's average low-temperature falls to a mild 56.5°F (13.6°C).Humidity
The average relative humidity in August is 78%.Rainfall
In Johannesburg, in August, it is raining for 15.8 days, with typically 1.69" (43mm) of accumulated precipitation. Throughout the year, there are 140.1 rainfall days, and 23.39" (594mm) of precipitation is accumulated.Snowfall
In Johannesburg, Michigan, snow does not fall in June through September.Daylight
In August, the average length of the day in Johannesburg is 14h and 1min.On the first day of the month, sunrise is at 6:24 am and sunset at 9:04 pm. On the last day of August, sunrise is at 6:59 am and sunset at 8:16 pm EDT.
Sunshine
In August, the average sunshine in Johannesburg is 9.5h.UV index
The months with the highest UV index in Johannesburg are June through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In August, a regular UV index of 5 translates into these guidelines:
Take precautions - Protection against sun damage is advised. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Johannesburg, MI
- Average high temperature in August: 76.5°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (23.5°F).
- Average low temperature in August: 56.5°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is February (14.4°F).
Average pressure in August
Johannesburg, MI
- Average pressure in August: 29.95"Hg
The month with the highest atmospheric pressure is March (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Johannesburg, MI
- Average wind speed in August: 6.2mph
The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in August
Johannesburg, MI
- Average humidity in August: 78%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (70%).
Average rainfall in August
Johannesburg, MI
- Average rainfall in August: 1.69"
The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in August
Johannesburg, MI
- Average rainfall days in August: 15.8 days
The month with the highest number of rainy days is October (17.5 days).
The months with the least rainy days are January and February (5 days).
Average snowfall in August
Johannesburg, MI
- Average snowfall in August: 0"
The month with the highest snowfall is January (10.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Johannesburg, MI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (24.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Johannesburg, MI
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in August: 9h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 1h and 42min).
Average sunshine days in August
Johannesburg, MI
- Average sunshine days in August: 12 days
The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is February (5.4 days).
Average UV index in August
Johannesburg, MI
- Average UV index in August: 5
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in August
Johannesburg, MI
- Average cloud cover in August: 38
The month with the most cloud cover is January (Cloud cover 83).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in August
Johannesburg, MI
- Average visibility in August: 5mi
The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
