July weather - Summer 2024

Weather in July
Frequently asked questions
Average temperature in July
Average pressure in July
Average wind speed in July
Average humidity in July
Average rainfall in July
Average rainfall days in July
Average snowfall in July
Average snowfall days in July
Average sea temperature in July
Average daylight in July
Average sunshine in July
Average sunshine days in July
Average UV index in July
Average cloud cover in July
Average visibility in July

Colorful buildings, docked ships in Quaint fishing village in Petersburg, Alaska, on Mitkof Island

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 temperature records reveal July as the warmest month, marked by average highs of 59.7°F (15.4°C) and lows of 50.2°F (10.1°C).

Humidity

The average relative humidity in July in Petersburg is 85%.

Rainfall

In Petersburg, during July, the rain falls for 17 days and regularly aggregates up to 3.5" (89mm) of precipitation. Throughout the year, there are 197.9 rainfall days, and 53.03" (1347mm) of precipitation is accumulated.

Snowfall

In Petersburg, snow does not fall in June through September.

Ocean temperature

In Petersburg, the average seawater temperature in July is 52.2°F (11.2°C).
Note: It is life-risking to swim in 52.2°F (11.2°C). Briefly staying in 55.4°F (13°C) waters feels unsettling, and temperatures below 50°F (10°C) might result in cold shock and loss of breath control, hinging on personal endurance.

Daylight

In Petersburg, the average length of the day in July 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

The average sunshine in July is 6.8h.

UV index

The months with the highest UV index are July and August, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In July, a regular UV index of 4 translates into these guidelines:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Updated: Jun 3, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What time of the year is the hottest?

Petersburg's warmest month, July, generally records average temperatures ranging from a high of 59.7°F (15.4°C) to a low of 50.2°F (10.1°C).

What is the average July temperature?

In July, in Petersburg, the average high-temperature is 59.7°F (15.4°C), and the average low-temperature is 50.2°F (10.1°C).

What is the average humidity in July?

The average relative humidity in July in Petersburg is 85%.

How much does it rain in July?

In Petersburg, during July, the rain falls for 17 days and regularly aggregates up to 3.5" (89mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

How cold is the water in July?

In Petersburg, the average seawater temperature in July is 52.2°F (11.2°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What is the average length of the day in July?

The average day length in July is 17h and 5min.

What time are sunrise and sunset in July?

On the first day of July, sunrise is at 4:04 am and sunset at 9:46 pm. On the last day of the month, sunrise is at 4:51 am and sunset at 9:04 pm AKDT.

How long on average sun shines in July?

In Petersburg, the average sunshine duration in July is 6.8h.

What are the months with the highest UV index?

The months with the highest UV index are July and August, with an average maximum UV index of 4.

What is the UV index intensity in July?

In July, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J July A S O N D

Jun

July

Aug

Average high temperature

55.4°F 13°C

59.7°F 15.4°C

59°F 15°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

4.4mph 7.1km/h

4.2mph 6.8km/h

4.7mph 7.6km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

19.3

17.7

Average snowfall

0" 0mm

Average snowfall days

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

11.8

12.3

Average UV index

Average cloud cover

Average visibility

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 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 July: 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 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).

July weather forecast
Petersburg, AK

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