August weather forecastMuskegon, MI

August
Weather in August
Contrasting to the peak temperatures in July, August brings a slight tempering of the Muskegon, Michigan summer. The weather maintains warmly as temperatures, daylight hours, and sunshine duration remain approximately constant. The sea temperature remains warm, promoting beach activities. Interestingly, rainfall decreases making this the least wet summer month. Enjoying the outdoors remains ideal with still warm temperatures and an almost constant UV Index.Temperature
Muskegon's warmest months, July and August, record an average high-temperature of 75.4°F (24.1°C).Humidity
In August, the average relative humidity is 77%.Rainfall
In Muskegon, Michigan, during August, the rain falls for 12.8 days and regularly aggregates up to 1.06" (27mm) of precipitation. Throughout the year, there are 124.4 rainfall days, and 11.42" (290mm) of precipitation is accumulated.Snowfall
In Muskegon, snow does not fall in May through September.Ocean temperature
With an average ocean temperature of 69.8°F (21°C), August is the month with the warmest seawater in Muskegon, Michigan.Note: The majority of people do not enjoy swimming in 69.8°F (21°C). The difficulty in controlling breathing escalates as the temperature descends from 69.8°F (21°C) to 59°F (15°C).
Daylight
In Muskegon, the average length of the day in August is 13h and 54min.On the first day of August in Muskegon, Michigan, sunrise is at 6:36 am and sunset at 9:06 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 8:21 pm EDT.
Sunshine
In Muskegon, the average sunshine in August is 10.3h.UV index
The months with the highest UV index in Muskegon are July and August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In August, the maximum UV index of 6 suggests this advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Muskegon, MI
- Average high temperature in August: 75.4°F
The warmest months (with the highest average high temperature) are July and August (75.4°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in August: 64.2°F
The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in August
Muskegon, MI
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Muskegon, MI
- Average wind speed in August: 8.4mph
The windiest month (with the highest average wind speed) is November (12.4mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).
Average humidity in August
Muskegon, MI
- Average humidity in August: 77%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are April, October and November (76%).
Average rainfall in August
Muskegon, MI
- Average rainfall in August: 1.06"
The wettest month (with the highest rainfall) is October (1.38").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days in August
Muskegon, MI
- Average rainfall days in August: 12.8 days
The month with the highest number of rainy days is October (14.9 days).
The month with the least rainy days is February (4 days).
Average snowfall in August
Muskegon, MI
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.05").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Muskegon, MI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (16.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in August
Muskegon, MI
- Average sea temperature in August: 70°F
The best month for swimming (with the highest average sea temperature) is August (70°F).
The coldest months (with the lowest average sea temperature) are February, March and April (37°F).
Average daylight in August /
Average sunshine in August
Muskegon, MI
- Average daylight in August: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in August: 10h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in August
Muskegon, MI
- Average sunshine days in August: 14.6 days
The month with the most sunshine days is March (17.3 days).
The month with the least sunshine days is January (10.3 days).
Average UV index in August
Muskegon, MI
- Average UV index in August: 6
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Muskegon, MI
- Average cloud cover in August: 25
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 24).
Average visibility in August
Muskegon, MI
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





