Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average sea temperature in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
The shift into August reveals an average high-temperature of a still warm 82.6°F (28.1°C), closely mirroring July's climate. In the month of August, the nighttime temperature dips to a steady average of 65.7°F (18.7°C).Heat index
For August, the heat index is estimated at a hot 89.6°F (32°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.Heat index data is primarily for areas with shade and subjected to light winds. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humidity
The average relative humidity in August is 78%.Rainfall
August is the month with the most rainfall. Rain falls for 15.3 days and accumulates 3.82" (97mm) of precipitation.Snowfall
In Havre de Grace, Maryland, snow does not fall in May through October.Ocean temperature
August is the month with the warmest seawater, with an average ocean temperature of 76.6°F (24.8°C).Note: If someone is sensitive to cold, the enjoyment of swimming in 76.6°F (24.8°C) water hinges on factors like sunshine, wind, and the current air temperature. (For context: Olympic swimming competitions are held in water temperatures of 77°F (25°C) to 82.4°F (28°C).)
Daylight
In Havre de Grace, the average length of the day in August is 13h and 41min.On the first day of August, sunrise is at 6:04 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 7:36 pm EDT.
Sunshine
The average sunshine in August is 10.2h.UV index
The months with the highest UV index in Havre de Grace are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In August, the maximum UV index of 6 translates into these guidelines:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Boost your sun resistance with garments that are densely woven yet spacious. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in August?
What is the average humidity in August?
What is the wettest month?
How much does it rain in August?
When it does not snow?
When is the ocean warmest?
How warm is the water in August?
How many hours of daylight does Havre de Grace have in August?
What time are sunrise and sunset in August?
How long on average sun shines in August?
What is the month with the highest UV index?
How high is the UV index in August?
Average temperature in August
Havre de Grace, MD
- Average high temperature in August: 82.6°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in August: 65.7°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in August
Havre de Grace, MD
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in August
Havre de Grace, MD
- Average wind speed in August: 5.3mph
The windiest months (with the highest average wind speed) are February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in August
Havre de Grace, MD
- Average humidity in August: 78%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (74%).
Average rainfall in August
Havre de Grace, MD
- Average rainfall in August: 3.82"
The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days in August
Havre de Grace, MD
- Average rainfall days in August: 15.3 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in August
Havre de Grace, MD
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Havre de Grace, MD
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in August
Havre de Grace, MD
- Average sea temperature in August: 76.6°F
The best month for swimming (with the highest average sea temperature) is August (76.6°F).
The coldest month (with the lowest average sea temperature) is February (42.5°F).
Average daylight in August /
Average sunshine in August
Havre de Grace, MD
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in August: 10h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in August
Havre de Grace, MD
- Average sunshine days in August: 13.3 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in August
Havre de Grace, MD
- Average UV index in August: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Havre de Grace, MD
- Average cloud cover in August: 32
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in August
Havre de Grace, MD
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Havre de Grace, Maryland, USA
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