August weather forecast
Martin, SD

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Weather in August

August, the last month of the summer in Martin, is also a moderately hot month, with an average temperature varying between 63.1°F (17.3°C) and 84.7°F (29.3°C).

Temperature

The transition into August marks the average high-temperature at a warm 84.7°F (29.3°C), differing minimally from July's 86.7°F (30.4°C). Contrasting the daytime warmth, Martin's August nights cool down to an average of 63.1°F (17.3°C).

Heat index

August's average heat index is computed to be a tropical 86°F (30°C). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is a metric representing the sensation of warmth when air temperature and moisture come together. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.

Humidity

August and September, with an average relative humidity of 51%, are the least humid months.

Rainfall

In Martin, in August, during 12.5 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. Throughout the year, there are 108 rainfall days, and 15.39" (391mm) of precipitation is accumulated.

Snowfall

In Martin, snow does not fall in June through August.

Daylight

In August, the average length of the day is 13h and 53min.
On the first day of the month, sunrise is at 5:38 am and sunset at 8:08 pm. On the last day of August, sunrise is at 6:10 am and sunset at 7:23 pm MDT.

Sunshine

With an average of 11.8h of sunshine, August has the most sunshine of the year.

UV index

In August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 6 during August morphs into the following directions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Updated: Jun 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

The average high-temperature and low-temperature in Martin during August are 84.7°F (29.3°C) and 63.1°F (17.3°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is computed to be 86°F (30°C).

What are the least humid months?

August and September, with an average relative humidity of 51%, are the least humid months.

What is the average humidity in August?

The average relative humidity in August is 51%.

How much does it rain in August?

In Martin, during August, the rain falls for 12.5 days and regularly aggregates up to 1.5" (38mm) of precipitation.

When it does not snow?

June through August are months without snowfall.

Does it snow in August?

In Martin, South Dakota, in August, it doesn't snow. In September, it regularly snows.

What is the average length of the day in August?

In August, the average day length is 13h and 53min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:38 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 7:23 pm MDT.

What month has the most sunshine?

The month with the most sunshine is August, with an average of 11.8h of sunshine.

How many hours of sunshine does Martin have in August?

In August, the average sunshine duration is 11.8h.

What is the UV index reading in August?

In August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe 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
Martin, SD

Average temperature in August - Martin, SD
  • Average high temperature in August: 84.7°F

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is December (32°F).

  • Average low temperature in August: 63.1°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

Average pressure in August
Martin, SD

Average pressure in August - Martin, SD
  • Average pressure in August: 29.91"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in August
Martin, SD

Average wind speed in August - Martin, SD
  • Average wind speed in August: 10.4mph

The windiest month (with the highest average wind speed) is April (12.9mph).
The calmest month (with the lowest average wind speed) is August (10.4mph).

Average humidity in August
Martin, SD

Average humidity in August - Martin, SD
  • Average humidity in August: 51%

The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are August and September (51%).

Average rainfall in August
Martin, SD

Average rainfall in August - Martin, SD
  • Average rainfall in August: 1.5"

The wettest month (with the highest rainfall) is May (2.4").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in August
Martin, SD

Average rainfall days in August - Martin, SD
  • Average rainfall days in August: 12.5 days

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is December (2.8 days).

Average snowfall in August
Martin, SD

Average snowfall in August - Martin, SD
  • Average snowfall in August: 0"

The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July and August (0").

Average snowfall days in August
Martin, SD

Average snowfall days in August - Martin, SD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (10.3 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in August /
Average sunshine in August
Martin, SD

Average daylight in August / Average sunshine in August - Martin, SD
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in August: 11h and 5min

The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).

Average sunshine days in August
Martin, SD

Average sunshine days in August - Martin, SD
  • Average sunshine days in August: 14.1 days

The month with the most sunshine days is December (21 days).
The month with the least sunshine days is July (11.8 days).

Average UV index in August
Martin, SD

Average UV index in August - Martin, SD
  • Average UV index in August: 6

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in August
Martin, SD

Average cloud cover in August - Martin, SD
  • Average cloud cover in August: 17

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 17).

Average visibility in August
Martin, SD

Average visibility in August - Martin, SD
  • 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).

Martin, South Dakota, USA

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