January weather forecast
Seaside, OR

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Large rocks in the water on the Seaside shores, Oregon, overlooking the breathtaking sunset view
Large rocks in the water on the Seaside shores, Oregon, overlooking the breathtaking sunset view

Weather in January

In Seaside, Oregon, January is marked by a notable high: an average rainfall of 6.26" (159mm) is observed, situated between December's 6.54" (166mm) and February's 4.41" (112mm). The month carries a distinct winter ambiance, with gloomy skies prevailing, shrouding the city in frequent, dense cloud cover. Concomitant with the arrival of the monsoons is a dip in the temperature dial, conjuring up a chilly but consistent climate. Winds are conversant in January, ensuring a brisk atmosphere. Despite the unwelcoming cold, January nurtures a poetic vibrancy with the silhouettes of bare trees vanishing in the wet haze.

Temperature

The transition into January shows a subtle variation to a still chilly 47.8°F (8.8°C) from December's 46.6°F (8.1°C) in the average high-temperature. January's average low-temperature in Seaside, Oregon, is a wintry 41.2°F (5.1°C), reflecting a minor difference from the day's peak temperatures.

Humidity

January, March through May, October and December, with an average relative humidity of 81%, are the least humid months in Seaside.

Rainfall

In Seaside, in January, it is raining for 19.4 days, with typically 6.26" (159mm) of accumulated precipitation. In Seaside, during the entire year, the rain falls for 185.6 days and collects up to 39.8" (1011mm) of precipitation.

Snowfall

January through March and December are months with snowfall in Seaside. In Seaside, during January, snow falls for 0.5 days and regularly aggregates up to 0.51" (13mm) of snow. Throughout the year, there are 2.8 snowfall days, and 1.3" (33mm) of snow is accumulated.

Ocean temperature

In January, the average ocean temperature is 48.9°F (9.4°C).
Note: Swimming in 48.9°F (9.4°C) is deemed hazardous. Exposure to temperatures below 50°F (10°C) leads to immediate severe cold shock and hyperventilation.

Daylight

The average length of the day in January is 9h and 8min.
On the first day of January, sunrise is at 7:57 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 5:19 pm PST.

Sunshine

The months with the least sunshine in Seaside are January and February, with an average of 3.9h of sunshine.

UV index

The average daily maximum UV index in January is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 3 during January, leads to the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
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Frequently asked questions

What is the average January temperature in Seaside?

Seaside in January has an average high-temperature of 47.8°F (8.8°C) and an average low-temperature of 41.2°F (5.1°C).

What is the least humid month in Seaside?

The months with the lowest humidity in Seaside are January, March through May, October and December, with an average relative humidity of 81%.

What is the average humidity in January in Seaside?

In Seaside, Oregon, the average relative humidity in January is 81%.

How much does it rain in Seaside in January?

In Seaside, Oregon, in January, during 19.4 rainfall days, 6.26" (159mm) of precipitation is typically accumulated.

How much does it snow in Seaside in January?

In January, in Seaside, it is snowing for 0.5 days. Throughout January, 0.51" (13mm) of snow is accumulated.

How cold is the water in January in Seaside?

In Seaside, in January, the average water temperature is 48.9°F (9.4°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 Seaside have in January?

In January, the average day length in Seaside, Oregon, is 9h and 8min.

When is the sunrise / sunset in January in Seaside?

In January, on the first day of the month, sunrise is at 7:57 am and sunset at 4:40 pm. On the last day of the month, in Seaside, Oregon, sunrise is at 7:39 am and sunset at 5:19 pm PST.

What are the months with the least sunshine in Seaside?

The months with the least sunshine in Seaside, Oregon, are January and February, with an average of 3.9h of sunshine.

How long on average sun shines in January in Seaside?

The average sunshine duration in January in Seaside, Oregon, is 3.9h.

How high is the UV index in January in Seaside?

In January, the average daily maximum UV index in Seaside is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
46.6°F 8.1°C
47.8°F 8.8°C
47.7°F 8.7°C
Average low temperature
40.5°F 4.7°C
41.2°F 5.1°C
40.8°F 4.9°C
Average pressure
30.06" 764mmHg
30.08" 764mmHg
30.06" 764mmHg
Average wind speed
10.5mph 16.9km/h
10.9mph 17.5km/h
9.8mph 15.8km/h
Average max. wind speed
11.2mph 18km/h
11.7mph 18.8km/h
10.4mph 16.7km/h
Average wind speed gusts
17.1mph 27.5km/h
18.1mph 29.1km/h
15.6mph 25.1km/h
Average humidity
81%
81%
82%
Average rainfall
6.54" 166mm
6.26" 159mm
4.41" 112mm
Average rainfall days
20.7
19.4
18.7
Average snowfall
0.04" 1mm
0.51" 13mm
0.59" 15mm
Average snowfall days
0.3
0.5
1.3
Average sea temperature
49.9°F 9.9°C
48.9°F 9.4°C
48.1°F 8.9°C
Average daylight
8h 4min
9h 1min
10h 2min
Average sunshine
4h 1min
3h 5min
3h 5min
Average sunshine days
8.8
10.3
7.5
Average UV index
2
3
2
Average cloud cover
56%
59%
59%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Seaside, OR

Average temperature in January - Seaside, OR
  • Average high temperature in January: 47.8°F

The warmest month (with the highest average high temperature) is August (65.5°F).
The month with the lowest average high temperature is December (46.6°F).

  • Average low temperature in January: 41.2°F

The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (40.5°F).

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Average pressure in January
Seaside, OR

Average pressure in January - Seaside, OR
  • Average pressure in January: 30.08"Hg

The month with the highest atmospheric pressure is January (30.08"Hg).
The months with the lowest atmospheric pressure are March and September (30.02"Hg).

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Average wind speed in January
Seaside, OR

Average wind speed in January - Seaside, OR
  • Average wind speed in January: 10.9mph

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

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Average humidity in January
Seaside, OR

Average humidity in January - Seaside, OR
  • Average humidity in January: 81%

The month with the highest relative humidity is August (84%).
The months with the lowest relative humidity are January, March, April, May, October and December (81%).

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Average rainfall in January
Seaside, OR

Average rainfall in January - Seaside, OR
  • Average rainfall in January: 6.26"

The wettest month (with the highest rainfall) is December (6.54").
The driest months (with the least rainfall) are July and August (0.47").

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Average rainfall days in January
Seaside, OR

Average rainfall days in January - Seaside, OR
  • Average rainfall days in January: 19.4 days

The month with the highest number of rainy days is March (20.8 days).
The months with the least rainy days are July and August (7.3 days).

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Average snowfall in January
Seaside, OR

Average snowfall in January - Seaside, OR
  • Average snowfall in January: 0.51"

The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in January
Seaside, OR

Average snowfall days in January - Seaside, OR
  • Average snowfall days in January: 0.5 days

The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average sea temperature in January
Seaside, OR

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).

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Average daylight in January /
Average sunshine in January
Seaside, OR

Average daylight in January / Average sunshine in January - Seaside, OR
  • Average daylight in January: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in January: 3h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The months with the least sunshine are January and February (Average sunshine: 3h and 54min).

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Average sunshine days in January
Seaside, OR

Average sunshine days in January - Seaside, OR
  • Average sunshine days in January: 10.3 days

The month with the most sunshine days is August (21.2 days).
The month with the least sunshine days is February (7.5 days).

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Average UV index in January
Seaside, OR

Average UV index in January - Seaside, OR
  • Average UV index in January: 3

The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are February, November and December (UV index 2).

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Average cloud cover in January
Seaside, OR

Average cloud cover in January - Seaside, OR
  • Average cloud cover in January: 59

The months with the most cloud cover are January and February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in January
Seaside, OR

Average visibility in January - Seaside, OR
  • Average visibility in January: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).

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Seaside, Oregon, USA

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