Monroe
Michigan, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Monroe, MI

August, the last month of the summer, in Monroe, is also a moderately hot month, with average temperature varying between 78.3°F (25.7°C) and 63°F (17.2°C).

Temperature

In Monroe, Michigan, the average high-temperature in August is practically the same as in July - a still moderately hot 78.3°F (25.7°C). The average low-temperature, in Monroe, is 63°F (17.2°C).

Humidity

In August, the average relative humidity 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, with an average ocean temperature of 76.5°F (24.7°C).
Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 76.5°F (24.7°C) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 77°F (25°C) to 82.4°F (28°C).)

Daylight

The average length of the day in Monroe is 13.8h.

Sunshine

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

UV index

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 hazard from the exposure to the Sun's UV radiation for the ordinary person.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in August in Monroe?

In Monroe, in August, the average high-temperature is 78.3°F (25.7°C), and the average low-temperature is 63°F (17.2°C).

What is the average humidity in August in Monroe?

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

How much does it rain in Monroe in August?

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

What is the wettest month in Monroe?

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

When it does not snow in Monroe?

May through October are months without snowfall.

What month is the ocean warmest in Monroe?

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

How warm is the water in August in Monroe?

In Monroe, Michigan, the average seawater temperature in August is 76.5°F (24.7°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 76.5°F (24.7°C) water may be enjoyable.

What is the average length of the day in August in Monroe?

The average length of the day in August in Monroe, Michigan, is 13.8h.

How long on average sun shines in August in Monroe?

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

When is the highest UV index in Monroe?

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

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 reading of 6 to 7 represents a high health threat from unprotected exposure to the UV radiation.
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).

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

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

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

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

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 lowest number of rainy days is January (4.3 days).

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

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

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).
Months with the lowest number of snowfall days are June, July, August, September and October (0 days).

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).

Average daylight in August / Average sunshine in August - Monroe, MI
  • Average daylight in August: 13.8h

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.2h).

  • Average sunshine in August: 10.1h

The month with most sunshine is July (Average sunshine: 10.3h).
The month with least sunshine is January (Average sunshine: 3.2h).

Average UV index in August - Monroe, MI
  • Average UV index in August: 6

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).