January weather forecast
Rockaway Beach, OR

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Weather in January

January, the same as December, in Rockaway Beach, Oregon, is a frosty winter month, with an average temperature fluctuating between 41.2°F (5.1°C) and 47.7°F (8.7°C).

Temperature

The advent of January signifies a minor shift to an average high-temperature of a still chilly 47.7°F (8.7°C), aligning closely with December. Night temperatures in January in Rockaway Beach exhibit a subtle decrease, settling at an average of 41.2°F (5.1°C).

Humidity

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

Rainfall

In Rockaway Beach, in January, it is raining for 14.3 days, with typically 2.01" (51mm) of accumulated precipitation. Throughout the year, in Rockaway Beach, there are 129.7 rainfall days, and 11.85" (301mm) of precipitation is accumulated.

Snowfall

January and February are months with snowfall. January is the first month it typically snows. Throughout January, in the average 0.4 snowfall days, it receives 0.04" (1mm) of snow. In Rockaway Beach, during the entire year, snow falls for 2.1 days and aggregates up to 0.16" (4mm) of snow.

Ocean temperature

In Rockaway Beach, in January, the average water temperature is 48.9°F (9.4°C).
Note: 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.

Daylight

In January, the average length of the day in Rockaway Beach is 9h and 11min.
On the first day of the month, sunrise is at 7:56 am and sunset at 4:42 pm. On the last day of January, sunrise is at 7:38 am and sunset at 5:20 pm PST.

Sunshine

The months with the least sunshine in Rockaway Beach are January and February, with an average of 4h of sunshine.

UV index

In January, the average daily maximum UV index in Rockaway Beach is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 3 in January transforms into the following instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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Frequently asked questions

What is the temperature in January in Rockaway Beach?

January temperatures in Rockaway Beach, Oregon, vary between a high-temperature of 47.7°F (8.7°C) and a low-temperature of 41.2°F (5.1°C).

What is the average humidity in January in Rockaway Beach?

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

How much does it rain in Rockaway Beach in January?

In Rockaway Beach, during January, the rain falls for 14.3 days and regularly aggregates up to 2.01" (51mm) of precipitation.

When does it start snowing in Rockaway Beach?

January is the first month it typically snows in Rockaway Beach, Oregon. Throughout January, in the average 0.4 snowfall days, it receives 0.04" (1mm) of snow.

How cold is the water in January in Rockaway Beach?

In Rockaway Beach, the average seawater temperature in January is 48.9°F (9.4°C). 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.

How many hours of daylight does Rockaway Beach have in January?

The average day length in January in Rockaway Beach is 9h and 11min.

What time are sunrise and sunset in January in Rockaway Beach?

In January, on the first day of the month, sunrise is at 7:56 am and sunset at 4:42 pm. On the last day of the month, in Rockaway Beach, Oregon, sunrise is at 7:38 am and sunset at 5:20 pm PST.

What is the month with the least sunshine in Rockaway Beach?

The months with the least sunshine in Rockaway Beach, Oregon, are January and February, with an average of 4h of sunshine.

How many hours of sunshine does Rockaway Beach have in January?

In Rockaway Beach, the average sunshine duration in January is 4h.

What is the UV index intensity in January in Rockaway Beach?

In January, the average daily maximum UV index in Rockaway Beach, Oregon, is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Rockaway Beach, OR

Average temperature in January - Rockaway Beach, OR
  • Average high temperature in January: 47.7°F

The warmest month (with the highest average high temperature) is August (66.2°F).
The month with the lowest average high temperature is December (46.2°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 (40.1°F).

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Average pressure in January
Rockaway Beach, OR

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

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

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Average wind speed in January
Rockaway Beach, OR

Average wind speed in January - Rockaway Beach, OR
  • Average wind speed in January: 10.7mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

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Average humidity in January
Rockaway Beach, OR

Average humidity in January - Rockaway Beach, OR
  • Average humidity in January: 81%

The month with the highest relative humidity is August (83%).
The month with the lowest relative humidity is May (80%).

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Average rainfall in January
Rockaway Beach, OR

Average rainfall in January - Rockaway Beach, OR
  • Average rainfall in January: 2.01"

The wettest month (with the highest rainfall) is December (2.13").
The driest month (with the least rainfall) is August (0.2").

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Average rainfall days in January
Rockaway Beach, OR

Average rainfall days in January - Rockaway Beach, OR
  • Average rainfall days in January: 14.3 days

The month with the highest number of rainy days is March (16.1 days).
The month with the least rainy days is August (4.4 days).

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Average snowfall in January
Rockaway Beach, OR

Average snowfall in January - Rockaway Beach, OR
  • Average snowfall in January: 0.04"

The month with the highest snowfall is February (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in January
Rockaway Beach, OR

Average snowfall days in January - Rockaway Beach, OR
  • Average snowfall days in January: 0.4 days

The month with the highest number of snowfall days is February (1.1 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
Rockaway Beach, OR

Average sea temperature in January - Rockaway Beach, 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
Rockaway Beach, OR

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

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in January: 4h and 0min

The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 0min).

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Average sunshine days in January
Rockaway Beach, OR

Average sunshine days in January - Rockaway Beach, OR
  • Average sunshine days in January: 13.8 days

The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is March (12.4 days).

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Average UV index in January
Rockaway Beach, OR

Average UV index in January - Rockaway Beach, OR
  • Average UV index in January: 3

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are February, November and December (UV index 2).

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Average cloud cover in January
Rockaway Beach, OR

Average cloud cover in January - Rockaway Beach, OR
  • Average cloud cover in January: 58

The months with the most cloud cover are January and March (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in January
Rockaway Beach, OR

Average visibility in January - Rockaway Beach, OR
  • Average visibility in January: 6mi

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

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Rockaway Beach, Oregon, USA

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