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 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
On the advent of January, Opal Cliffs's average high-temperature exhibits a minor adjustment to a still mild 58.6°F (14.8°C) from December's 57.2°F (14°C). During January, an average low-temperature of 46.9°F (8.3°C) is observed.Humidity
In Opal Cliffs, the average relative humidity in January is 72%.Rainfall
In Opal Cliffs, in January, during 9.3 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. In Opal Cliffs, during the entire year, the rain falls for 77.9 days and collects up to 14.45" (367mm) of precipitation.Ocean temperature
In Opal Cliffs, the average seawater temperature in January is 54.1°F (12.3°C).Note: Staying in 54.1°F (12.3°C) waters for just a few moments at 55.4°F (13°C) can be harrowing, and below 50°F (10°C) poses breathing and cold shock risks, depending on individual tolerance.
Daylight
The average length of the day in January in Opal Cliffs, California, is 9h and 58min.On the first day of the month, sunrise is at 7:20 am and sunset at 5:01 pm. On the last day of January, in Opal Cliffs, sunrise is at 7:11 am and sunset at 5:31 pm PST.
Sunshine
In January, the average sunshine in Opal Cliffs is 6.1h.UV index
In January, the average daily maximum UV index in Opal Cliffs is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 4 in January translates into this advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Frequently asked questions
What is the usual temperature for Opal Cliffs in January?
What is the average humidity in January in Opal Cliffs?
How many days does it rain in January in Opal Cliffs?
How cold is the water in January in Opal Cliffs?
What is the average length of the day in January in Opal Cliffs?
What time are sunrise and sunset in January in Opal Cliffs?
How long on average sun shines in January in Opal Cliffs?
What is the UV index intensity in January in Opal Cliffs?
Average temperature in January
Opal Cliffs, CA
- Average high temperature in January: 58.6°F
The warmest months (with the highest average high temperature) are August and September (73°F).
The month with the lowest average high temperature is December (57.2°F).
- Average low temperature in January: 46.9°F
The month with the highest average low temperature is September (55.2°F).
The coldest month (with the lowest average low temperature) is February (45.5°F).
Average pressure in January
Opal Cliffs, CA
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed in January
Opal Cliffs, CA
- Average wind speed in January: 5.7mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in January
Opal Cliffs, CA
- Average humidity in January: 72%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (68%).
Average rainfall in January
Opal Cliffs, CA
- Average rainfall in January: 2.56"
The wettest month (with the highest rainfall) is December (2.8").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in January
Opal Cliffs, CA
- Average rainfall days in January: 9.3 days
The month with the highest number of rainy days is March (13.4 days).
The month with the least rainy days is August (1.2 days).
Average sea temperature in January
Opal Cliffs, CA
- Average sea temperature in January: 54.1°F
The best months for swimming (with the highest average sea temperature) are August and September (58.1°F).
The coldest month (with the lowest average sea temperature) is April (53.8°F).
Average daylight in January /
Average sunshine in January
Opal Cliffs, CA
- Average daylight in January: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January: 6h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in January
Opal Cliffs, CA
- Average sunshine days in January: 20.5 days
The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (16.4 days).
Average UV index in January
Opal Cliffs, CA
- Average UV index in January: 4
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are February and November (UV index 3).
Average cloud cover in January
Opal Cliffs, CA
- Average cloud cover in January: 33
The month with the most cloud cover is March (Cloud cover 38).
The months with the least cloud cover are July and September (Cloud cover 15).
Average visibility in January
Opal Cliffs, CA
- 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).
Opal Cliffs, California, USA
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