August weather forecast
Chester, MD

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Weather in August

The last month of the summer, August, is another warm month in Chester, Maryland, with an average temperature ranging between min 69.6°F (20.9°C) and max 82.6°F (28.1°C).

Temperature

The start of August sees the average high-temperature at a still moderately hot 82.6°F (28.1°C), showing little difference from July's 84.4°F (29.1°C). Chester records an average low of 69.6°F (20.9°C) throughout the nights in August.

Heat index

In August, the average heat index is computed to be a hot 89.6°F (32°C). With extended exposure and activity, one might feel exhausted and experience heat cramps.
Factoring in the heat index, values are geared towards shaded areas with light breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', determines the feeling of heat when you account for the relative humidity. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.

Humidity

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

Rainfall

In Chester, during August, the rain falls for 14 days and regularly aggregates up to 3.19" (81mm) of precipitation. In Chester, during the entire year, the rain falls for 159 days and collects up to 32.36" (822mm) of precipitation.

Snowfall

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

Ocean temperature

With an average ocean temperature of 77.7°F (25.4°C), August is the month with the warmest seawater.
Note: For engaging in water activities including swimming and diving, temperatures from 77°F (25°C) to 84.2°F (29°C) are perceived as perfect, providing pleasure for extended durations.

Daylight

The average length of the day in August in Chester is 13h and 38min.
On the first day of the month, sunrise is at 6:06 am and sunset at 8:16 pm. On the last day of August, in Chester, sunrise is at 6:33 am and sunset at 7:36 pm EDT.

Sunshine

In Chester, Maryland, the average sunshine in August is 10.5h.

UV index

The months with the highest UV index in Chester are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: A daily high UV index of 6 in August leads to these guidelines:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be mindful! Sand and water reflections can up the Sun's UV exposure.
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Frequently asked questions

How hot is it in Chester in August?

August temperatures vary between a high-temperature of 82.6°F (28.1°C) and a low-temperature of 69.6°F (20.9°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is computed to be 89.6°F (32°C).

What is the average humidity in August in Chester?

The average relative humidity in August in Chester is 76%.

How many days does it rain in August in Chester?

In August, in Chester, Maryland, the rain falls for 14 days. Throughout August, 3.19" (81mm) of precipitation is accumulated.

When it does not snow in Chester?

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

What month is the ocean warmest in Chester?

August is the month with the warmest seawater in Chester, Maryland, with an average ocean temperature of 77.7°F (25.4°C).

What is the water temperature in August in Chester?

In August, the average ocean temperature in Chester is 77.7°F (25.4°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

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

In August, the average day length in Chester, Maryland, is 13h and 38min.

When are sunrise and sunset in August in Chester?

In August, on the first day of the month, sunrise is at 6:06 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 7:36 pm EDT.

How long on average sun shines in August in Chester?

The average sunshine duration in August in Chester, Maryland, is 10.5h.

What are the months with the highest UV index in Chester?

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

What is the UV index intensity in August in Chester?

In Chester, Maryland, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMJJAugustSOND
Jul
August
Sep
Average high temperature
84.4°F 29.1°C
82.6°F 28.1°C
77.4°F 25.2°C
Average low temperature
71.2°F 21.8°C
69.6°F 20.9°C
63.5°F 17.5°C
Average pressure
29.96" 761mmHg
29.99" 762mmHg
30.05" 763mmHg
Average wind speed
6.6mph 10.6km/h
6.6mph 10.6km/h
7.4mph 11.9km/h
Average max. wind speed
7.5mph 12.1km/h
7.3mph 11.7km/h
7.7mph 12.4km/h
Average wind speed gusts
10.8mph 17.4km/h
10.6mph 17.1km/h
11.7mph 18.8km/h
Average humidity
76%
76%
77%
Average rainfall
3.31" 84mm
3.19" 81mm
1.89" 48mm
Average rainfall days
16.8
14
12.5
Average snowfall
0" 0mm
0" 0mm
0" 0mm
Average snowfall days
0
0
0
Average sea temperature
76.1°F 24.5°C
77.8°F 25.4°C
73.9°F 23.3°C
Average daylight
14h 4min
13h 4min
12h 2min
Average sunshine
10h 5min
10h 3min
9h 2min
Average sunshine days
12.3
15.2
16.2
Average UV index
6
6
5
Average cloud cover
28%
29%
34%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in August
Chester, MD

Average temperature in August - Chester, 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 (40.1°F).

  • Average low temperature in August: 69.6°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

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Average pressure in August
Chester, MD

Average pressure in August - Chester, 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).

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Average wind speed in August
Chester, MD

Average wind speed in August - Chester, MD
  • Average wind speed in August: 6.6mph

The windiest months (with the highest average wind speed) are February and March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

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Average humidity in August
Chester, MD

Average humidity in August - Chester, MD
  • Average humidity in August: 76%

The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and November (73%).

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Average rainfall in August
Chester, MD

Average rainfall in August - Chester, MD
  • Average rainfall in August: 3.19"

The wettest month (with the highest rainfall) is July (3.31").
The driest month (with the least rainfall) is September (1.89").

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Average rainfall days in August
Chester, MD

Average rainfall days in August - Chester, MD
  • Average rainfall days in August: 14 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is November (8.8 days).

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Average snowfall in August
Chester, MD

Average snowfall in August - Chester, MD
  • Average snowfall in August: 0"

The month with the highest snowfall is January (1.42").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Chester, MD

Average snowfall days in August - Chester, MD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in August
Chester, MD

Average sea temperature in August - Chester, MD
  • Average sea temperature in August: 77.8°F

The best month for swimming (with the highest average sea temperature) is August (77.8°F).
The coldest month (with the lowest average sea temperature) is February (45.1°F).

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Average daylight in August /
Average sunshine in August
Chester, MD

Average daylight in August / Average sunshine in August - Chester, 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 30min).

  • Average sunshine in August: 10h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in August
Chester, MD

Average sunshine days in August - Chester, MD
  • Average sunshine days in August: 15.2 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.1 days).

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Average UV index in August
Chester, MD

Average UV index in August - Chester, 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 and December (UV index 2).

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Average cloud cover in August
Chester, MD

Average cloud cover in August - Chester, MD
  • Average cloud cover in August: 29

The months with the most cloud cover are February, March and December (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in August
Chester, MD

Average visibility in August - Chester, MD
  • 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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Chester, Maryland, USA

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