August weather forecastPort Clinton, OH
August
Weather in August
In August, summer continues its reign in Port Clinton. A slight dip in temperature only slightly alleviates the burden of the blazing summer sun. Water activity is common through this period, with Lake Erie maintaining high temperatures. Despite being one of the year's hottest months, peak summer crowding begins to taper off. Though witnessing 3.82" (97mm) of rainfall, the showers do not dampen the town's vibrant summer spirit.Temperature
Port Clinton, Ohio, observes an average high-temperature of a still moderately hot 75.9°F (24.4°C) in August, barely different from 77.7°F (25.4°C) in July. Throughout the nights in August, Port Clinton experiences an average low-temperature of 66°F (18.9°C).Humidity
In August, the average relative humidity is 79%.Rainfall
In Port Clinton, Ohio, in August, during 16.1 rainfall days, 3.82" (97mm) of precipitation is typically accumulated. Throughout the year, there are 163.4 rainfall days, and 34.92" (887mm) of precipitation is accumulated.Snowfall
June through October are months without snowfall.Ocean temperature
The months with the warmest seawater are July and August, with an average ocean temperature of 76.6°F (24.8°C).Note: The allure of a swim in 76.6°F (24.8°C) waters can be influenced by your feelings towards the cold, today's sunshine, the wind's touch, and the ambient warmth. To put it in perspective, Olympic standards demand water temperatures of 77°F (25°C) to 82.4°F (28°C).
Daylight
In August, the average length of the day is 13h and 47min.On the first day of the month, sunrise is at 6:27 am and sunset at 8:48 pm. On the last day of August, in Port Clinton, sunrise is at 6:57 am and sunset at 8:06 pm EDT.
Sunshine
In Port Clinton, the average sunshine in August is 10.2h.UV index
In Port Clinton, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The UV index of 5 during August translates into the following guidance:
Undertake protective steps - Recommendations to avoid sunburn are issued. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Warning! The reflection of sand and water increases the UV dose.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Port Clinton, OH
- Average high temperature in August: 75.9°F
The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in August: 66°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in August
Port Clinton, 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
Port Clinton, OH
- Average wind speed in August: 7.8mph
The windiest month (with the highest average wind speed) is January (12.1mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in August
Port Clinton, OH
- Average humidity in August: 79%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall in August
Port Clinton, OH
- Average rainfall in August: 3.82"
The wettest month (with the highest rainfall) is June (4.76").
The driest month (with the least rainfall) is February (1.57").
Average rainfall days in August
Port Clinton, OH
- Average rainfall days in August: 16.1 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (7.6 days).
Average snowfall in August
Port Clinton, OH
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.54").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in August
Port Clinton, OH
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in August
Port Clinton, OH
- Average sea temperature in August: 76.5°F
The best month for swimming (with the highest average sea temperature) is July (76.6°F).
The coldest month (with the lowest average sea temperature) is February (32.3°F).
Average daylight in August /
Average sunshine in August
Port Clinton, OH
- Average daylight in August: 13h and 48min
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 12min
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).
Average sunshine days in August
Port Clinton, OH
- Average sunshine days in August: 11.9 days
The month with the most sunshine days is September (13.5 days).
The month with the least sunshine days is February (9 days).
Average UV index in August
Port Clinton, OH
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Port Clinton, OH
- Average cloud cover in August: 29
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in August
Port Clinton, OH
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





