August weather forecast
Willoughby, OH

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Weather in August

August, the last month of the summer in Willoughby, is also a moderately hot month, with an average temperature fluctuating between 64.9°F (18.3°C) and 76.6°F (24.8°C).

Temperature

August is marked by an average high-temperature of a still moderately hot 76.6°F (24.8°C), almost identical to the preceding month. During August, Willoughby witnesses a consistent average low-temperature of 64.9°F (18.3°C).

Humidity

The months with the lowest humidity in Willoughby are July and August, with an average relative humidity of 76%.

Rainfall

In Willoughby, in August, it is raining for 17.8 days, with typically 2.76" (70mm) of accumulated precipitation. Throughout the year, there are 178.9 rainfall days, and 32.2" (818mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Ocean temperature

The month with the warmest seawater is August, with an average ocean temperature of 75.7°F (24.3°C).
Note: For someone sensitive to cold, swimming in 75.7°F (24.3°C) waters can be invigorating, especially when considering elements like sunshine, wind, and current air temperature. (As a reference, Olympic swimming waters are kept between 77°F (25°C) and 82.4°F (28°C).)

Daylight

The average length of the day in August in Willoughby is 13h and 48min.
On the first day of the month, sunrise is at 6:20 am and sunset at 8:43 pm. On the last day of August, in Willoughby, Ohio, sunrise is at 6:51 am and sunset at 8:00 pm EDT.

Sunshine

In August, the average sunshine is 10.5h.

UV index

In August, the average daily maximum UV index in Willoughby, Ohio, is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The average daily UV index of 5 in August transforms into the following instructions:
Take precautions - Protection against sun damage is advised. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. During bright days, sunglasses that offer UVA and UVB defense are recommended. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Willoughby in August?

During August, Willoughby experiences an average high-temperature of 76.6°F (24.8°C) and a low-temperature of 64.9°F (18.3°C).

What are the least humid months in Willoughby?

The months with the lowest humidity in Willoughby, Ohio, are July and August, with an average relative humidity of 76%.

What is the average humidity in August in Willoughby?

In Willoughby, the average relative humidity in August is 76%.

How many days does it rain in August in Willoughby?

In Willoughby, Ohio, in August, during 17.8 rainfall days, 2.76" (70mm) of precipitation is typically accumulated.

When it does not snow in Willoughby?

May through October are months without snowfall.

What month is the ocean warmest in Willoughby?

With an average ocean temperature of 75.7°F (24.3°C), August is the month with the warmest seawater in Willoughby.

What is the ocean temperature in August in Willoughby?

In Willoughby, Ohio, in August, the average water temperature is 75.7°F (24.3°C). For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 75.7°F (24.3°C).

How many hours of daylight does Willoughby have in August?

In August, the average day length in Willoughby, Ohio, is 13h and 48min.

When is the sunrise / sunset in August in Willoughby?

In August, on the first day of the month, sunrise is at 6:20 am and sunset at 8:43 pm. On the last day of the month, in Willoughby, sunrise is at 6:51 am and sunset at 8:00 pm EDT.

How long on average sun shines in August in Willoughby?

In August, the average sunshine duration in Willoughby is 10.5h.

What is the UV index reading in August in Willoughby?

In Willoughby, Ohio, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
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
Willoughby, OH

Average temperature in August - Willoughby, OH
  • Average high temperature in August: 76.6°F

The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (31.1°F).

  • Average low temperature in August: 64.9°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).

Average pressure in August
Willoughby, OH

Average pressure in August - Willoughby, OH
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in August
Willoughby, OH

Average wind speed in August - Willoughby, OH
  • Average wind speed in August: 7.5mph

The windiest month (with the highest average wind speed) is January (11.7mph).
The calmest month (with the lowest average wind speed) is July (7mph).

Average humidity in August
Willoughby, OH

Average humidity in August - Willoughby, OH
  • Average humidity in August: 76%

The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are July and August (76%).

Average rainfall in August
Willoughby, OH

Average rainfall in August - Willoughby, OH
  • Average rainfall in August: 2.76"

The wettest month (with the highest rainfall) is June (3.23").
The driest month (with the least rainfall) is September (2.13").

Average rainfall days in August
Willoughby, OH

Average rainfall days in August - Willoughby, OH
  • Average rainfall days in August: 17.8 days

The month with the highest number of rainy days is October (18 days).
The month with the least rainy days is January (9 days).

Average snowfall in August
Willoughby, OH

Average snowfall in August - Willoughby, OH
  • Average snowfall in August: 0"

The month with the highest snowfall is February (5.31").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Willoughby, OH

Average snowfall days in August - Willoughby, OH
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average sea temperature in August
Willoughby, OH

Average sea temperature in August - Willoughby, OH
  • Average sea temperature in August: 75.7°F

The best month for swimming (with the highest average sea temperature) is August (75.7°F).
The coldest month (with the lowest average sea temperature) is February (32.5°F).

Average daylight in August /
Average sunshine in August
Willoughby, OH

Average daylight in August / Average sunshine in August - Willoughby, OH
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in August: 10h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).

Average sunshine days in August
Willoughby, OH

Average sunshine days in August - Willoughby, OH
  • Average sunshine days in August: 10.3 days

The month with the most sunshine days is May (11.4 days).
The month with the least sunshine days is January (6.8 days).

Average UV index in August
Willoughby, OH

Average UV index in August - Willoughby, OH
  • Average UV index in August: 5

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in August
Willoughby, OH

Average cloud cover in August - Willoughby, OH
  • Average cloud cover in August: 27

The month with the most cloud cover is January (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 27).

Average visibility in August
Willoughby, OH

Average visibility in August - Willoughby, OH
  • Average visibility in August: 6mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).

Willoughby, Ohio, USA

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