August weather forecast
Fortuna, ND

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Weather in August

August continues the summer tradition of warm temperatures, registering a high of 81.3°F (27.4°C), only marginally lower than July's peak. However, rainfalls drop significantly to 0.87" (22mm), making it the driest month of the year. The summer’s heat, combined with the reduced precipitation, makes the month ideal for hiking, camping, and other outdoor pursuits. The inhabitants of Fortuna often spend their time making the most of the fine weather before the arrival of autumn.

Temperature

Fortuna's August average high-temperature settles at a still warm 81.3°F (27.4°C), showing a near match with the preceding month. In the month of August, Fortuna's average low-temperature falls to a mild 60.6°F (15.9°C).

Heat index

The heat index in August is computed to be 82.4°F (28°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.

Humidity

The least humid month is August, with an average relative humidity of 46%.

Rainfall

In Fortuna, during August, the rain falls for 9 days and regularly aggregates up to 0.87" (22mm) of precipitation. In Fortuna, during the entire year, the rain falls for 93.3 days and collects up to 12.01" (305mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In August, the average length of the day is 14h and 19min.
On the first day of the month, sunrise is at 6:29 am and sunset at 9:33 pm. On the last day of August, in Fortuna, sunrise is at 7:11 am and sunset at 8:38 pm CDT.

Sunshine

In Fortuna, the average sunshine in August is 11.5h.

UV index

In Fortuna, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In August, a regular UV index of 5 translates into these guidelines:
Take necessary precautions - Defending against sun damage is advocated. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature?

Fortuna in August has an average high-temperature of 81.3°F (27.4°C) and an average low-temperature of 60.6°F (15.9°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in August is computed to be 82.4°F (28°C).

What is the least humid month?

The least humid month is August, with an average relative humidity of 46%.

What is the average humidity in August?

In Fortuna, the average relative humidity in August is 46%.

How many days does it rain in August?

In Fortuna, in August, it is raining for 9 days, with typically 0.87" (22mm) of accumulated precipitation.

When it does not snow?

June through September are months without snowfall.

How many hours of daylight does Fortuna have in August?

In Fortuna, the average day length in August is 14h and 19min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 6:29 am and sunset at 9:33 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 8:38 pm CDT.

How long on average sun shines in August?

The average sunshine duration in August is 11.5h.

What is the UV index intensity in August?

The average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a medium health risk from 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
Fortuna, ND

Average temperature in August - Fortuna, ND
  • Average high temperature in August: 81.3°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is February (19.8°F).

  • Average low temperature in August: 60.6°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is February (6.3°F).

Average pressure in August
Fortuna, ND

Average pressure in August - Fortuna, ND
  • Average pressure in August: 29.89"Hg

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

Average wind speed in August
Fortuna, ND

Average wind speed in August - Fortuna, ND
  • Average wind speed in August: 9.3mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is February (9.2mph).

Average humidity in August
Fortuna, ND

Average humidity in August - Fortuna, ND
  • Average humidity in August: 46%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is August (46%).

Average rainfall in August
Fortuna, ND

Average rainfall in August - Fortuna, ND
  • Average rainfall in August: 0.87"

The wettest month (with the highest rainfall) is June (2.17").
The driest month (with the least rainfall) is February (0.47").

Average rainfall days in August
Fortuna, ND

Average rainfall days in August - Fortuna, ND
  • Average rainfall days in August: 9 days

The month with the highest number of rainy days is June (13.9 days).
The month with the least rainy days is February (2.6 days).

Average snowfall in August
Fortuna, ND

Average snowfall in August - Fortuna, ND
  • Average snowfall in August: 0"

The month with the highest snowfall is November (3.74").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Fortuna, ND

Average snowfall days in August - Fortuna, ND
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Fortuna, ND

Average daylight in August / Average sunshine in August - Fortuna, ND
  • Average daylight in August: 14h and 2min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in August: 11h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

Average sunshine days in August
Fortuna, ND

Average sunshine days in August - Fortuna, ND
  • Average sunshine days in August: 20.1 days

The month with the most sunshine days is August (20.1 days).
The months with the least sunshine days are February and June (13.8 days).

Average UV index in August
Fortuna, ND

Average UV index in August - Fortuna, ND
  • Average UV index in August: 5

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).

Average cloud cover in August
Fortuna, ND

Average cloud cover in August - Fortuna, ND
  • Average cloud cover in August: 19

The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 19).

Average visibility in August
Fortuna, ND

Average visibility in August - Fortuna, ND
  • Average visibility in August: 6mi

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

Fortuna, North Dakota, USA

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