Harbor
Oregon, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Harbor, OR

Ocean temperature

In December, the average ocean temperature in Harbor, Oregon, 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

The month with the shortest days in Harbor is December, with an average of 9.2h of daylight.

What is the water temperature in December in Harbor?

In December, the average ocean temperature in Harbor, Oregon, 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 month with the shortest days in Harbor?

December has the shortest days of the year, with an average of 9.2h of daylight.

How many hours of daylight does Harbor have in December?

In December, the average length of the day in Harbor, Oregon, is 9.2h.
Average sea temperature in December - Harbor, OR
  • Average sea temperature in December: 52.1°F

The best month for swimming (with the highest average sea temperature) is July (53.5°F).
Coldest months (with the lowest average sea temperature) are January, February and April (50.8°F).

Average daylight in December - Harbor, OR
  • Average daylight in December: 9.2h

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.2h).