Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average sea temperature in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
With the advent of January, Rockaway Beach's high-temperatures adjust to a still chilly 47.7°F (8.7°C), closely aligning with the preceding month. Rockaway Beach notes an average temperature descent to a cold 41.2°F (5.1°C) in January, a small shift from its daytime peak.Humidity
In Rockaway Beach, the average relative humidity in January is 81%.Rainfall
In Rockaway Beach, in January, during 14.3 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. Throughout the year, there are 129.7 rainfall days, and 11.85" (301mm) of precipitation is accumulated.Snowfall
Months with snowfall are January and February. 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 January, the average ocean temperature in Rockaway Beach is 48.9°F (9.4°C).Note: Swimming at temperatures less than 50°F (10°C) in 48.9°F (9.4°C) is feasible with the right swimsuit; if not, expect cold shock and breathlessness. A quick swim at 55.4°F (13°C) without adequate warmth can be discomforting.
Daylight
The average length of the day in January is 9h and 11min.On the first day of January, sunrise is at 7:56 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 5:20 pm PST.
Sunshine
January and February, with an average of 4h of sunshine, are months with the least sunshine.UV index
In Rockaway Beach, the average daily maximum UV index in January is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 3 in January translates into this advice:
Guard yourself - Avoiding sunburn is suggested. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in January?
What is the average humidity in January?
How much does it rain in January?
When does it start to snow in Rockaway Beach?
What is the water temperature in January?
How many hours of daylight does Rockaway Beach have in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
How high is the UV index in January?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
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).
Rockaway Beach, Oregon, USA
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