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

January 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
January, like December, in Petersburg, Alaska, is another cold winter month, with temperature in the range of an average low of 23.4°F (-4.8°C) and an average high of 34.9°F (1.6°C).

Temperature

With an average high-temperature of 34.9°F (1.6°C) and an average low-temperature of 23.4°F (-4.8°C), January is the coldest month.

Ocean temperature

In January, the average ocean temperature in Petersburg is 41.7°F (5.4°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.

Daylight

In January, the average length of the day is 7.6h.

What is the coldest month in Petersburg?

January is the coldest month in Petersburg, with an average high-temperature of 34.9°F (1.6°C) and an average low-temperature of 23.4°F (-4.8°C).

What is the temperature in January in Petersburg?

In January, in Petersburg, Alaska, the average high-temperature is 34.9°F (1.6°C), and the average low-temperature is 23.4°F (-4.8°C).

What is the ocean temperature in January in Petersburg?

In January, the average ocean temperature in Petersburg, Alaska, is 41.7°F (5.4°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.

How many hours of daylight does Petersburg have in January?

In January, the average length of the day in Petersburg, Alaska, is 7.6h.
Average temperature in January - Petersburg, AK
  • Average high temperature in January: 34.9°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 January: 23.4°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 January - Petersburg, AK
  • Average sea temperature in January: 41.8°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 January - Petersburg, AK
  • Average daylight in January: 7.6h

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