Petersburg
Alaska, USA
Long-term weather forecast
Long-term weather forecast

July weather forecast and climate
Petersburg, AK

Colorful buildings, docked ships in Quaint fishing village in Petersburg, Alaska, on Mitkof Island
Colorful buildings, docked ships in Quaint fishing village in Petersburg, Alaska, on Mitkof Island
July, like June, in Petersburg, Alaska, is another comfortable summer month, with average temperature varying between 48°F (8.9°C) and 63.9°F (17.7°C).

Temperature

The warmest month is July, with an average high-temperature of 63.9°F (17.7°C) and an average low-temperature of 48°F (8.9°C).

Ocean temperature

In July, the average ocean temperature in Petersburg is 52.2°F (11.2°C).
Note: Swimming in 52.2°F (11.2°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

In Petersburg, the average length of the day in July is 17.1h.

What is the warmest month in Petersburg?

July is the warmest month, with an average high-temperature of 63.9°F (17.7°C) and an average low-temperature of 48°F (8.9°C).

What is the temperature in July in Petersburg?

In Petersburg, Alaska, in July, the average high-temperature is 63.9°F (17.7°C), and the average low-temperature is 48°F (8.9°C).

How cold is the water in July in Petersburg?

In Petersburg, Alaska, the average seawater temperature in July is 52.2°F (11.2°C). Swimming in 52.2°F (11.2°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does Petersburg have in July?

The average length of the day in July in Petersburg is 17.1h.
Average temperature in July - Petersburg, AK
  • Average high temperature in July: 63.9°F

The warmest month (with the highest average high temperature) is July (63.9°F).
The month with the lowest average high temperature is January (34.9°F).

  • Average low temperature in July: 48°F

The month with the highest average low temperature is July (48°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

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 - Petersburg, AK
  • Average daylight in July: 17.1h

The month with the longest days is June (Average daylight: 17.7h).
The month with shortest days is December (Average daylight: 6.9h).