August weather forecast
Brighton, CO

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Trees on partly frozen lake water in Barr Lake State Park in Brighton, Colorado
Trees on partly frozen lake water in Barr Lake State Park in Brighton, Colorado

Weather in August

August continues the trend of high temperatures in Brighton, only minutely cooler than July's peak. With rainfall decreasing to 0.59" (15mm), the city experiences a drying spell after July's showers. The UV index remains consistent at 6, ensuring sun protection remains vital. The presence of wind is slightly lower, making the heat more pronounced. August lets Brighton revel in the summer heat, seasoned with the occasional rain.

Temperature

The arrival of August in Brighton coincides with an average high-temperature of a still hot 88.2°F (31.2°C), indicating a minimal shift from July's 88.9°F (31.6°C). Brighton, during the nights of August, registers a substantial plunge from the daytime high, averaging at a refreshing 60.4°F (15.8°C).

Heat index

The heat index for August is computed to be a hot 87.8°F (31°C). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.
Realize that the values for the heat index are set for shaded places and light winds. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

The least humid month in Brighton is August, with an average relative humidity of 40%.

Rainfall

In Brighton, in August, it is raining for 9.8 days, with typically 0.59" (15mm) of accumulated precipitation. Throughout the year, in Brighton, there are 80.6 rainfall days, and 5.87" (149mm) of precipitation is accumulated.

Snowfall

In Brighton, snow does not fall in June through September.

Daylight

In Brighton, the average length of the day in August is 13h and 42min.
On the first day of August in Brighton, sunrise is at 5:58 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:31 pm MDT.

Sunshine

In Brighton, the average sunshine in August is 11.7h.

UV index

The months with the highest UV index in Brighton are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: A maximum UV index of 6 in August translates into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Enhance your sun protection with tightly woven, yet airy clothing.
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Frequently asked questions

Is it hot in Brighton during August?

In Brighton, in August, the average high-temperature is 88.2°F (31.2°C), and the average low-temperature is 60.4°F (15.8°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is computed to be 87.8°F (31°C).

What is the least humid month in Brighton?

The least humid month in Brighton, Colorado, is August, with an average relative humidity of 40%.

What is the average humidity in August in Brighton?

The average relative humidity in August is 40%.

How much does it rain in Brighton in August?

In Brighton, during August, the rain falls for 9.8 days and regularly aggregates up to 0.59" (15mm) of precipitation.

When it does not snow in Brighton?

June through September are months without snowfall.

How many hours of daylight does Brighton have in August?

In August, the average day length is 13h and 42min.

When is the sunrise / sunset in August in Brighton?

On the first day of August, sunrise is at 5:58 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:31 pm MDT.

How many hours of sunshine does Brighton have in August?

In Brighton, the average sunshine duration in August is 11.7h.

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

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

How high is the UV index in August in Brighton?

In Brighton, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's 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
Brighton, CO

Average temperature in August - Brighton, CO
  • Average high temperature in August: 88.2°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is December (40.8°F).

  • Average low temperature in August: 60.4°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is December (21.2°F).

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Average pressure in August
Brighton, CO

Average pressure in August - Brighton, CO
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in August
Brighton, CO

Average wind speed in August - Brighton, CO
  • Average wind speed in August: 6.3mph

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is December (6mph).

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Average humidity in August
Brighton, CO

Average humidity in August - Brighton, CO
  • Average humidity in August: 40%

The months with the highest relative humidity are January and February (64%).
The month with the lowest relative humidity is August (40%).

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Average rainfall in August
Brighton, CO

Average rainfall in August - Brighton, CO
  • Average rainfall in August: 0.59"

The wettest month (with the highest rainfall) is May (0.98").
The driest month (with the least rainfall) is December (0.12").

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Average rainfall days in August
Brighton, CO

Average rainfall days in August - Brighton, CO
  • Average rainfall days in August: 9.8 days

The month with the highest number of rainy days is May (10.8 days).
The month with the least rainy days is December (2.6 days).

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Average snowfall in August
Brighton, CO

Average snowfall in August - Brighton, CO
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.89").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Brighton, CO

Average snowfall days in August - Brighton, CO
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in August /
Average sunshine in August
Brighton, CO

Average daylight in August / Average sunshine in August - Brighton, CO
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in August: 11h and 4min

The months with the most sunshine are June and July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).

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Average sunshine days in August
Brighton, CO

Average sunshine days in August - Brighton, CO
  • Average sunshine days in August: 15.8 days

The month with the most sunshine days is December (25.8 days).
The month with the least sunshine days is July (14.8 days).

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Average UV index in August
Brighton, CO

Average UV index in August - Brighton, CO
  • 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
Brighton, CO

Average cloud cover in August - Brighton, CO
  • Average cloud cover in August: 16

The month with the most cloud cover is April (Cloud cover 28).
The months with the least cloud cover are June, August and September (Cloud cover 16).

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Average visibility in August
Brighton, CO

Average visibility in August - Brighton, CO
  • 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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Brighton, Colorado, USA

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