August weather forecast
Monroe, MI

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Weather in August

August carries over July's warmth while ushering in slightly cooler evenings in Monroe, Michigan. The sea temperature, although receding, remains ideal for swimming and other water activities. Despite slight temperature decreases, it notably maintains an average high of 78.3°F (25.7°C), signifying the residual influence of the summer heat. Though August marks the end of peak summer, the transition to September is smooth, with the latter still preserving some semblance of the summer warmth.

Temperature

August in Monroe notes an average high-temperature of a still warm 78.3°F (25.7°C), subtly differing from July's 80.2°F (26.8°C). Monroe reports an average nighttime low-temperature of 63°F (17.2°C) in August.

Humidity

In Monroe, Michigan, the average relative humidity in August is 79%.

Rainfall

The wettest months are May, June and August, with an average 1.06" (27mm) of rainfall.

Snowfall

In Monroe, snow does not fall in May through October.

Ocean temperature

August is the month with the warmest seawater in Monroe, Michigan, with an average ocean temperature of 76.5°F (24.7°C).
Note: Individual cold sensitivities, influenced by sunshine, wind, and the ambient temperature, play a role in finding a swim in 76.5°F (24.7°C) water pleasant. (Olympic swimming events mandate water temperatures from 77°F (25°C) to 82.4°F (28°C).)

Daylight

In Monroe, Michigan, the average length of the day in August is 13h and 49min.
On the first day of August, sunrise is at 6:28 am and sunset at 8:51 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 8:08 pm EDT.

Sunshine

The average sunshine in August is 10.1h.

UV index

The months with the highest UV index in Monroe are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 6 in August transforms into the following instructions:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Heed this! UV intensity is much stronger when reflected off sand and water.
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Frequently asked questions

What is the temperature in August in Monroe?

The high-temperature, in August, in Monroe, records 78.3°F (25.7°C), while the low-temperature is 63°F (17.2°C).

What is the average humidity in August in Monroe?

In August, the average relative humidity is 79%.

What is the rainiest month in Monroe?

The months with the most rainfall are May, June and August, with an average 1.06" (27mm) of precipitation.

How many days does it rain in August in Monroe?

In Monroe, Michigan, in August, it is raining for 10 days, with typically 1.06" (27mm) of accumulated precipitation.

When it does not snow in Monroe?

In Monroe, snow does not fall in May through October.

What is the month with the warmest ocean in Monroe?

August is the month with the warmest seawater in Monroe, Michigan, with an average ocean temperature of 76.5°F (24.7°C).

What is the water temperature in August in Monroe?

In Monroe, Michigan, the average seawater temperature in August is 76.5°F (24.7°C). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 76.5°F (24.7°C) water.

How many hours of daylight does Monroe have in August?

The average day length in August in Monroe, Michigan, is 13h and 49min.

When is the sunrise / sunset in August in Monroe?

On the first day of August, sunrise is at 6:28 am and sunset at 8:51 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 8:08 pm EDT.

How many hours of sunshine does Monroe have in August?

In August, the average sunshine duration in Monroe, Michigan, is 10.1h.

When is the highest UV index in Monroe?

The months with the highest UV index are June through August, with an average maximum UV index of 6.

What is the UV index intensity in August in Monroe?

In Monroe, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Monroe, MI

Average temperature in August - Monroe, MI
  • Average high temperature in August: 78.3°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in August: 63°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19°F).

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Average pressure in August
Monroe, MI

Average pressure in August - Monroe, MI
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in August
Monroe, MI

Average wind speed in August - Monroe, MI
  • Average wind speed in August: 6.7mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

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Average humidity in August
Monroe, MI

Average humidity in August - Monroe, MI
  • Average humidity in August: 79%

The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in August
Monroe, MI

Average rainfall in August - Monroe, MI
  • Average rainfall in August: 1.06"

The wettest months (with the highest rainfall) are May, June and August (1.06").
The driest month (with the least rainfall) is September (0.39").

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Average rainfall days in August
Monroe, MI

Average rainfall days in August - Monroe, MI
  • Average rainfall days in August: 10 days

The month with the highest number of rainy days is May (12.2 days).
The month with the least rainy days is January (4.3 days).

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Average snowfall in August
Monroe, MI

Average snowfall in August - Monroe, MI
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Monroe, MI

Average snowfall days in August - Monroe, MI
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average sea temperature in August
Monroe, MI

Average sea temperature in August - Monroe, MI
  • Average sea temperature in August: 76.4°F

The best month for swimming (with the highest average sea temperature) is August (76.4°F).
The coldest month (with the lowest average sea temperature) is February (32.6°F).

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Average daylight in August /
Average sunshine in August
Monroe, MI

Average daylight in August / Average sunshine in August - Monroe, MI
  • Average daylight in August: 13h and 5min

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: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

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Average sunshine days in August
Monroe, MI

Average sunshine days in August - Monroe, MI
  • Average sunshine days in August: 17.3 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is April (14.9 days).

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Average UV index in August
Monroe, MI

Average UV index in August - Monroe, 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).

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Average cloud cover in August
Monroe, MI

Average cloud cover in August - Monroe, MI
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in August
Monroe, MI

Average visibility in August - Monroe, 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).

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Monroe, Michigan, USA

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