July weather forecastPetersburg, AK
July
Weather in July
July, being the warmest month in the year, exhibits elevated temperatures and stricter UV indexes in Petersburg. As rainfall increases, humidity levels also rise, creating a unique balance of sun and rain. The high sea temperature of 52.1°F (11.2°C) makes it an appealing period for water-based activities. July presents the best of summer, blending the charm of extended sunshine hours with the frequent light showers. Despite the onset of rains, July weather maintains the quaint appeal of Petersburg.Temperature
Petersburg's July weather, marked by an average high temperature of 59.7°F (15.4°C) and an average low temperature of 50.2°F (10.1°C), is the warmest in the year.Humidity
In Petersburg, the average relative humidity in July is 85%.Rainfall
In July, the rain falls for 17 days. Throughout July, 3.5" (89mm) of precipitation is accumulated. Throughout the year, there are 197.9 rainfall days, and 53.03" (1347mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Ocean temperature
In Petersburg, in July, the average water temperature is 52.2°F (11.2°C).Note: Diving into 52.2°F (11.2°C) when it's under 50°F (10°C) can cause immediate cold shock symptoms, marked by hyperventilation.
Daylight
In July, the average length of the day is 17h and 5min.On the first day of the month, sunrise is at 4:04 am and sunset at 9:46 pm. On the last day of July, sunrise is at 4:51 am and sunset at 9:04 pm AKDT.
Sunshine
In Petersburg, the average sunshine in July is 6.8h.UV index
July and August, with an average maximum UV index of 4, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: A typical high UV index of 4 in July suggests the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Petersburg, AK
- Average high temperature in July: 59.7°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 July: 50.2°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 July
Petersburg, AK
- Average pressure in July: 30.05"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 July
Petersburg, AK
- Average wind speed in July: 3.9mph
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 July
Petersburg, AK
- Average humidity in July: 85%
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 July
Petersburg, AK
- Average rainfall in July: 3.5"
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 July
Petersburg, AK
- Average rainfall days in July: 17 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 July
Petersburg, AK
- Average snowfall in July: 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 July
Petersburg, AK
- Average snowfall days in July: 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 July
Petersburg, AK
- Average sea temperature in July: 52.1°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 July /
Average sunshine in July
Petersburg, AK
- Average daylight in July: 17h and 6min
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 July: 6h and 48min
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 July
Petersburg, AK
- Average sunshine days in July: 11.8 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 July
Petersburg, AK
- Average UV index in July: 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 July
Petersburg, AK
- Average cloud cover in July: 58
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 July
Petersburg, AK
- Average visibility in July: 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).
