August weather forecastFortuna, CA
August
Weather in August
The last month of the summer, August, is also an agreeable month in Fortuna, California, with temperature in the range of an average high of 71.6°F (22°C) and an average low of 53.2°F (11.8°C).Temperature
With its high average temperature of 71.6°F (22°C) and a low of 53.2°F (11.8°C), August is regarded as the warmest month.Humidity
In August, the average relative humidity is 78%.Rainfall
July and August are months with the least rain when the rain falls for 1.8 days and typically aggregates up to 0.12" (3mm) of rain.Snowfall
January, March through December are months without snowfall.Daylight
In Fortuna, the average length of the day in August is 13h and 44min.On the first day of August, sunrise is at 6:14 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 7:49 pm PDT.
Sunshine
The months with the most sunshine are July and August, with an average of 11.6h of sunshine.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: A daily maximum UV index of 5 in August translates into the following instructions:
Adopt protective measures - It is advised to guard against sun damage. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Fortuna, CA
- Average high temperature in August: 71.6°F
The warmest month (with the highest average high temperature) is August (71.6°F).
The months with the lowest average high temperature are February and December (53.1°F).
- Average low temperature in August: 53.2°F
The month with the highest average low temperature is August (53.2°F).
The coldest month (with the lowest average low temperature) is February (41.7°F).
Average pressure in August
Fortuna, CA
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in August
Fortuna, CA
- Average wind speed in August: 6.2mph
The windiest months (with the highest average wind speed) are March and June (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in August
Fortuna, CA
- Average humidity in August: 78%
The months with the highest relative humidity are February and March (82%).
The months with the lowest relative humidity are September and October (75%).
Average rainfall in August
Fortuna, CA
- Average rainfall in August: 0.12"
The wettest month (with the highest rainfall) is December (5.16").
The driest months (with the least rainfall) are July and August (0.12").
Average rainfall days in August
Fortuna, CA
- Average rainfall days in August: 1.8 days
The month with the highest number of rainy days is March (16.8 days).
The month with the least rainy days is August (1.8 days).
Average snowfall in August
Fortuna, CA
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in August
Fortuna, CA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in August /
Average sunshine in August
Fortuna, CA
- Average daylight in August: 13h and 42min
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 18min).
- Average sunshine in August: 11h and 36min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in August
Fortuna, CA
- Average sunshine days in August: 27.8 days
The month with the most sunshine days is July (28.1 days).
The month with the least sunshine days is March (12.3 days).
Average UV index in August
Fortuna, CA
- Average UV index in August: 5
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in August
Fortuna, CA
- Average cloud cover in August: 15
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in August
Fortuna, CA
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
