August weather forecast
Saint Martins, MO

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Weather in August

The last month of the summer, August, is another hot month in Saint Martins, Missouri, with temperature in the range of an average low of 65.8°F (18.8°C) and an average high of 87.4°F (30.8°C).

Temperature

The arrival of August brings an average high-temperature of a still tropical 87.4°F (30.8°C), subtly diverging from July's 88.5°F (31.4°C). Throughout August nights, a significant departure from daytime temperatures, with an average low of 65.8°F (18.8°C), is recognized.

Heat index

Throughout August, the heat index is appraised at a very hot 100.4°F (38°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

The average relative humidity in August in Saint Martins is 73%.

Rainfall

In Saint Martins, in August, it is raining for 13 days, with typically 2.32" (59mm) of accumulated precipitation. Throughout the year, there are 133.5 rainfall days, and 25.2" (640mm) of precipitation is accumulated.

Snowfall

In Saint Martins, snow does not fall in April through September.

Daylight

The average length of the day in August in Saint Martins is 13h and 37min.
On the first day of August, sunrise is at 6:11 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:40 pm CDT.

Sunshine

The average sunshine in August in Saint Martins, Missouri, is 10.3h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Saint Martins. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In August, the maximum UV index of 6 transforms into these recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
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Frequently asked questions

Is it hot in Saint Martins during August?

Saint Martins in August has an average high-temperature of 87.4°F (30.8°C) and an average low-temperature of 65.8°F (18.8°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is appraised at 100.4°F (38°C).

What is the average humidity in August in Saint Martins?

In Saint Martins, Missouri, the average relative humidity in August is 73%.

How much does it rain in Saint Martins in August?

In August, in Saint Martins, the rain falls for 13 days. Throughout August, 2.32" (59mm) of precipitation is accumulated.

When it does not snow in Saint Martins?

April through September are months without snowfall in Saint Martins, Missouri.

What is the average length of the day in August in Saint Martins?

The average day length in August is 13h and 37min.

When is the sunrise / sunset in August in Saint Martins?

On the first day of August, sunrise is at 6:11 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:40 pm CDT.

How many hours of sunshine does Saint Martins have in August?

In Saint Martins, Missouri, the average sunshine duration in August is 10.3h.

What are the months with the highest UV index in Saint Martins?

The months with the highest UV index in Saint Martins are June through August, with an average maximum UV index of 6.

What is the UV index reading in August in Saint Martins?

In August, the average daily maximum UV index in Saint Martins is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unprotected exposure to UV radiation.
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
Saint Martins, MO

Average temperature in August - Saint Martins, MO
  • Average high temperature in August: 87.4°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (38.3°F).

  • Average low temperature in August: 65.8°F

The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in August
Saint Martins, MO

Average pressure in August - Saint Martins, MO
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in August
Saint Martins, MO

Average wind speed in August - Saint Martins, MO
  • Average wind speed in August: 6mph

The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

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Average humidity in August
Saint Martins, MO

Average humidity in August - Saint Martins, MO
  • Average humidity in August: 73%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in August
Saint Martins, MO

Average rainfall in August - Saint Martins, MO
  • Average rainfall in August: 2.32"

The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is January (1.14").

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Average rainfall days in August
Saint Martins, MO

Average rainfall days in August - Saint Martins, MO
  • Average rainfall days in August: 13 days

The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (5.9 days).

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Average snowfall in August
Saint Martins, MO

Average snowfall in August - Saint Martins, MO
  • Average snowfall in August: 0"

The month with the highest snowfall is February (2.52").
The months with the least snowfall are April, May, June, July, August and September (0").

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Average snowfall days in August
Saint Martins, MO

Average snowfall days in August - Saint Martins, MO
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (6.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Saint Martins, MO

Average daylight in August / Average sunshine in August - Saint Martins, MO
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in August
Saint Martins, MO

Average sunshine days in August - Saint Martins, MO
  • Average sunshine days in August: 16 days

The month with the most sunshine days is December (20.8 days).
The month with the least sunshine days is July (13.7 days).

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Average UV index in August
Saint Martins, MO

Average UV index in August - Saint Martins, MO
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in August
Saint Martins, MO

Average cloud cover in August - Saint Martins, MO
  • Average cloud cover in August: 28

The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June, July and August (Cloud cover 28).

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Average visibility in August
Saint Martins, MO

Average visibility in August - Saint Martins, MO
  • 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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Saint Martins, Missouri, USA

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