August weather forecastCopper Harbor, MI
August
Weather in August
The weather in Copper Harbor in August signals the gradual retreat of summer, with a minor dip in temperature from July. While the UV index remains at 5, similar to July, subtle indicators of an arising change surface in the form of a slight increase in humidity and wind speeds. The weather remains steadily warm during August, providing a gentle descent into the cooler realm of September and autumn.Temperature
August is the warmest month, with an average high-temperature of 62.6°F (17°C) and an average low-temperature of 57.6°F (14.2°C).Humidity
In Copper Harbor, the average relative humidity in August is 83%.Rainfall
The month with the most rainfall is August, when the rain falls for 12.6 days and typically aggregates up to 2.48" (63mm) of precipitation.Snowfall
In Copper Harbor, snow does not fall in June through September.Daylight
In Copper Harbor, the average length of the day in August is 14h and 12min.On the first day of the month, sunrise is at 6:30 am and sunset at 9:25 pm. On the last day of August, in Copper Harbor, sunrise is at 7:10 am and sunset at 8:33 pm EDT.
Sunshine
In August, the average sunshine is 9.5h.UV index
The months with the highest UV index are July and August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In August, the UV index of 5 transforms into the following advice:
Act with care - The suggestion to avoid sunburn is emphasized. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Copper Harbor, MI
- Average high temperature in August: 62.6°F
The warmest month (with the highest average high temperature) is August (62.6°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in August: 57.6°F
The month with the highest average low temperature is August (57.6°F).
The coldest month (with the lowest average low temperature) is February (17.2°F).
Average pressure in August
Copper Harbor, MI
- Average pressure in August: 29.93"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The months with the lowest atmospheric pressure are June and July (29.92"Hg).
Average wind speed in August
Copper Harbor, MI
- Average wind speed in August: 11mph
The windiest month (with the highest average wind speed) is January (17.8mph).
The calmest month (with the lowest average wind speed) is July (10mph).
Average humidity in August
Copper Harbor, MI
- Average humidity in August: 83%
The months with the highest relative humidity are January and July (85%).
The months with the lowest relative humidity are October and November (78%).
Average rainfall in August
Copper Harbor, MI
- Average rainfall in August: 2.48"
The wettest month (with the highest rainfall) is August (2.48").
The driest month (with the least rainfall) is March (1.46").
Average rainfall days in August
Copper Harbor, MI
- Average rainfall days in August: 12.6 days
The month with the highest number of rainy days is October (15.7 days).
The month with the least rainy days is February (1.4 days).
Average snowfall in August
Copper Harbor, MI
- Average snowfall in August: 0"
The month with the highest snowfall is December (3.86").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Copper Harbor, MI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Copper Harbor, MI
- Average daylight in August: 14h and 12min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in August: 9h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 1h and 12min).
Average sunshine days in August
Copper Harbor, MI
- Average sunshine days in August: 16.7 days
The months with the most sunshine days are July and August (16.7 days).
The month with the least sunshine days is January (3.8 days).
Average UV index in August
Copper Harbor, MI
- Average UV index in August: 5
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in August
Copper Harbor, MI
- Average cloud cover in August: 32
The month with the most cloud cover is January (Cloud cover 89).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in August
Copper Harbor, MI
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and December (4mi).
