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

January weather forecast and climate
Seaside, OR

From atop a high cliff is this view of large rocks in the water on the Seaside shores, Oregon, overlooking the breathtaking sunset view
From atop a high cliff is this view of large rocks in the water on the Seaside shores, Oregon, overlooking the breathtaking sunset view
January, like December, in Seaside, Oregon, is another fresh winter month, with temperature in the range of an average low of 38.7°F (3.7°C) and an average high of 52.2°F (11.2°C).

Temperature

In January, the average high-temperature is practically the same as in December - a still fresh 52.2°F (11.2°C). In Seaside, in January, the average low-temperature is 38.7°F (3.7°C).

Rainfall

In Seaside, it is raining for 20.4 days, with typically 10.7" (272.8mm) of accumulated precipitation. In Seaside, Oregon, during the entire year, the rain falls for 177.3 days and collects up to 74.4" (1889.3mm) of precipitation.

Ocean temperature

In January, the average ocean temperature in Seaside is 48.9°F (9.4°C).
Note: Swimming in 48.9°F (9.4°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

The average length of the day in January in Seaside, Oregon, is 9.1h.

What is the temperature in January in Seaside?

The average high-temperature, in January, is 52.2°F (11.2°C), while the average low-temperature is 38.7°F (3.7°C).

How much does it rain in Seaside in January?

In Seaside, Oregon, during January, the rain falls for 20.4 days and regularly aggregates up to 10.7" (272.8mm) of precipitation.

What is the water temperature in January in Seaside?

In January, the average ocean temperature in Seaside is 48.9°F (9.4°C). Swimming in 48.9°F (9.4°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 Seaside have in January?

In January, the average length of the day is 9.1h.
Average temperature in January - Seaside, OR
  • Average high temperature in January: 52.1°F

The warmest month (with the highest average high temperature) is August (67.6°F).
The month with the lowest average high temperature is December (51°F).

  • Average low temperature in January: 38.6°F

Months with the highest average low temperature are July and August (52.5°F).
The coldest month (with the lowest average low temperature) is December (37.2°F).

Average rainfall in January - Seaside, OR
  • Average rainfall in January: 10.7"

The wettest month (with the highest rainfall) is November (11.7").
The driest month (with the lowest rainfall) is August (1.2").

Average rainfall days in January - Seaside, OR
  • Average rainfall days in January: 20.4 days

Months with the highest number of rainy days are January and November (20.4 days).
The month with the lowest number of rainy days is August (6.9 days).

Average sea temperature in January - Seaside, OR
  • Average sea temperature in January: 48.9°F

The best month for swimming (with the highest average sea temperature) is July (57.2°F).
The coldest month (with the lowest average sea temperature) is February (48.1°F).

Average daylight in January - Seaside, OR
  • Average daylight in January: 9.1h

The month with the longest days is June (Average daylight: 15.7h).
The month with shortest days is December (Average daylight: 8.7h).