August weather forecast
Moab, UT

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The red natural rock formation within the iconic Arches National Park in Moab, Utah
The red natural rock formation within the iconic Arches National Park in Moab, Utah

Weather in August

August in Moab continues the trend of summer heat, albeit with a minor decrease in temperature from the previous month. Despite the warm weather, visitors can still enjoy the beauty of the rising sun painting colors onto the towering red rocks. With an average high temperature of 88.2°F (31.2°C), preparations for outdoor activities should include sun protection. Looking forward to September, anticipate experiencing a considerable drop in temperature and shorter daylight hours. Pack your sun protection gear to enjoy the vast outdoor activities available during August.

Temperature

The onset of August manifests an average high-temperature of a still tropical 88.2°F (31.2°C), demonstrating a minor variation from the preceding month. Throughout August, the average low-temperature dips to an agreeable 68.7°F (20.4°C).

Humidity

In August, the average relative humidity is 29%.

Rainfall

In Moab, Utah, in August, during 8.2 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. Throughout the year, in Moab, there are 78.8 rainfall days, and 6.38" (162mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in August is 13h and 37min.
On the first day of the month, sunrise is at 6:20 am and sunset at 8:28 pm. On the last day of August, sunrise is at 6:47 am and sunset at 7:49 pm MDT.

Sunshine

The months with the most sunshine are June and August, with an average of 12h of sunshine.

UV index

In August, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 6 during August translates into the following guidance:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.

Frequently asked questions

Is it hot during August?

The high-temperature during August is 88.2°F (31.2°C) and the low-temperature is 68.7°F (20.4°C).

What is the average humidity in August?

In Moab, the average relative humidity in August is 29%.

How many days does it rain in August?

In Moab, in August, it is raining for 8.2 days, with typically 0.59" (15mm) of accumulated precipitation.

When it does not snow?

In Moab, snow does not fall in May through September.

How many hours of daylight does Moab have in August?

In August, the average day length is 13h and 37min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 6:20 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 7:49 pm MDT.

What are the months with the most sunshine in Moab?

The months with the most sunshine are June and August, with an average of 12h of sunshine.

How long on average sun shines in August?

The average sunshine duration in August is 12h.

What is the UV index intensity in August?

In Moab, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health threat 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
Moab, UT

Average temperature in August - Moab, UT
  • Average high temperature in August: 88.2°F

The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in August: 68.7°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

Average pressure in August
Moab, UT

Average pressure in August - Moab, UT
  • Average pressure in August: 29.93"Hg

The month with the highest atmospheric pressure is January (30.25"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in August
Moab, UT

Average wind speed in August - Moab, UT
  • Average wind speed in August: 5.8mph

The windiest month (with the highest average wind speed) is June (8.1mph).
The calmest month (with the lowest average wind speed) is January (3.5mph).

Average humidity in August
Moab, UT

Average humidity in August - Moab, UT
  • Average humidity in August: 29%

The month with the highest relative humidity is January (75%).
The month with the lowest relative humidity is June (22%).

Average rainfall in August
Moab, UT

Average rainfall in August - Moab, UT
  • Average rainfall in August: 0.59"

The wettest months (with the highest rainfall) are March and July (0.71").
The driest month (with the least rainfall) is June (0.35").

Average rainfall days in August
Moab, UT

Average rainfall days in August - Moab, UT
  • Average rainfall days in August: 8.2 days

The month with the highest number of rainy days is July (9.8 days).
The month with the least rainy days is November (4.2 days).

Average snowfall in August
Moab, UT

Average snowfall in August - Moab, UT
  • Average snowfall in August: 0"

The month with the highest snowfall is December (3.35").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Moab, UT

Average snowfall days in August - Moab, UT
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (5.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Moab, UT

Average daylight in August / Average sunshine in August - Moab, UT
  • 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: 12h and 0min

The months with the most sunshine are June and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 36min).

Average sunshine days in August
Moab, UT

Average sunshine days in August - Moab, UT
  • Average sunshine days in August: 15.4 days

The month with the most sunshine days is November (24.4 days).
The month with the least sunshine days is July (13.7 days).

Average UV index in August
Moab, UT

Average UV index in August - Moab, UT
  • Average UV index in August: 6

The months with the highest UV index are June and 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
Moab, UT

Average cloud cover in August - Moab, UT
  • Average cloud cover in August: 10

The month with the most cloud cover is January (Cloud cover 26).
The month with the least cloud cover is September (Cloud cover 9).

Average visibility in August
Moab, UT

Average visibility in August - Moab, UT
  • Average visibility in August: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Moab, Utah, USA

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