Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average sea temperature in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
Upon the onset of August, Petersburg witnesses an average high-temperature of a still mild 59°F (15°C), showing a close resemblance to the prior month. Petersburg, during the nights of August, averages a temperature close to its daytime high, at a cool 50°F (10°C).Humidity
January and August, with an average relative humidity of 86%, are the most humid months.Rainfall
In Petersburg, in August, it is raining for 17.7 days, with typically 5.55" (141mm) of accumulated precipitation. Throughout the year, in Petersburg, there are 197.9 rainfall days, and 53.03" (1347mm) of precipitation is accumulated.Snowfall
In Petersburg, Alaska, snow does not fall in June through September.Ocean temperature
August is the month with the warmest seawater, with an average ocean temperature of 54.1°F (12.3°C).Note: Diving into 54.1°F (12.3°C) when it's under 50°F (10°C) can cause immediate cold shock symptoms, marked by hyperventilation.
Daylight
In August, the average length of the day is 15h and 5min.On the first day of the month, sunrise is at 4:53 am and sunset at 9:02 pm. On the last day of August, sunrise is at 5:54 am and sunset at 7:49 pm AKDT.
Sunshine
In Petersburg, the average sunshine in August is 6.9h.UV index
July and August, with an average maximum UV index of 4, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 4 in August interprets into the following advice:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Frequently asked questions
What is the usual temperature for Petersburg in August?
What are the most humid months?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow?
What month is the ocean warmest?
What is the ocean temperature in August?
What is the average length of the day in August in Petersburg?
What time are sunrise and sunset in August?
How many hours of sunshine does Petersburg have in August?
What are the months with the highest UV index?
What is the UV index intensity in August?
Average temperature in August
Petersburg, AK
- Average high temperature in August: 59°F
The warmest month (with the highest average high temperature) is July (59.7°F).
The month with the lowest average high temperature is December (32.4°F).
- Average low temperature in August: 50°F
The month with the highest average low temperature is July (50.2°F).
The coldest month (with the lowest average low temperature) is February (25.9°F).
Average pressure in August
Petersburg, AK
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is July (30.05"Hg).
The month with the lowest atmospheric pressure is November (29.8"Hg).
Average wind speed in August
Petersburg, AK
- Average wind speed in August: 4.3mph
The windiest month (with the highest average wind speed) is January (8.2mph).
The calmest month (with the lowest average wind speed) is July (3.9mph).
Average humidity in August
Petersburg, AK
- Average humidity in August: 86%
The months with the highest relative humidity are January and August (86%).
The month with the lowest relative humidity is May (81%).
Average rainfall in August
Petersburg, AK
- Average rainfall in August: 5.55"
The wettest month (with the highest rainfall) is October (6.3").
The driest month (with the least rainfall) is May (2.01").
Average rainfall days in August
Petersburg, AK
- Average rainfall days in August: 17.7 days
The month with the highest number of rainy days is October (20.1 days).
The month with the least rainy days is February (9.5 days).
Average snowfall in August
Petersburg, AK
- Average snowfall in August: 0"
The month with the highest snowfall is March (13.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Petersburg, AK
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is March (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in August
Petersburg, AK
- Average sea temperature in August: 54.2°F
The best month for swimming (with the highest average sea temperature) is August (54.2°F).
The coldest month (with the lowest average sea temperature) is March (41°F).
Average daylight in August /
Average sunshine in August
Petersburg, AK
- Average daylight in August: 15h and 1min
The month with the longest days is June (Average daylight: 17h and 42min).
The month with the shortest days is December (Average daylight: 6h and 54min).
- Average sunshine in August: 6h and 5min
The month with the most sunshine is May (Average sunshine: 7h and 24min).
The months with the least sunshine are January and November (Average sunshine: 3h and 24min).
Average sunshine days in August
Petersburg, AK
- Average sunshine days in August: 12.3 days
The month with the most sunshine days is December (12.5 days).
The month with the least sunshine days is November (8 days).
Average UV index in August
Petersburg, AK
- Average UV index in August: 4
The months with the highest UV index are July and August (UV index 4).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover in August
Petersburg, AK
- Average cloud cover in August: 57
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are February and May (Cloud cover 54).
Average visibility in August
Petersburg, AK
- Average visibility in August: 5mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Petersburg, Alaska, USA
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