January weather forecast
Cayucos, CA

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Weather in January

January in Cayucos, California, is an enjoyable winter month, with an average temperature varying between 61.2°F (16.2°C) and 48.4°F (9.1°C).

Temperature

Transitioning from December to January, Cayucos observes an average high-temperature of a comfortable 61.2°F (16.2°C), differing subtly from the previous month. Cayucos sees an average low-temperature of 48.4°F (9.1°C) during January.

Humidity

The average relative humidity in January is 66%.

Rainfall

The month with the most rainfall is January, when the rain falls for 6.8 days and typically aggregates up to 1.81" (46mm) of precipitation.

Ocean temperature

In Cayucos, California, in January, the average water temperature is 55.6°F (13.1°C).
Note: Staying in 55.6°F (13.1°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

In January, the average length of the day is 10h and 5min.
On the first day of the month, sunrise is at 7:12 am and sunset at 5:01 pm. On the last day of January, sunrise is at 7:03 am and sunset at 5:30 pm PST.

Sunshine

In Cayucos, the average sunshine in January is 6.7h.

UV index

January through April, November and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 4 in January transforms into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Boost your sun resistance with garments that are densely woven yet spacious.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Cayucos in January?

January temperatures vary between a high-temperature of 61.2°F (16.2°C) and a low-temperature of 48.4°F (9.1°C).

What is the average humidity in January?

The average relative humidity in January is 66%.

What is the wettest month?

January is the month with the most rainfall. Rain falls for 6.8 days and accumulates 1.81" (46mm) of precipitation.

How many days does it rain in January?

In Cayucos, during January, the rain falls for 6.8 days and regularly aggregates up to 1.81" (46mm) of precipitation.

What is the water temperature in January?

In January, the average ocean temperature is 55.6°F (13.1°C). Swimming in 55.6°F (13.1°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in January?

In January, the average day length is 10h and 5min.

What time are sunrise and sunset in January?

On the first day of January, sunrise is at 7:12 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 5:30 pm PST.

How many hours of sunshine does Cayucos have in January?

In January, the average sunshine duration is 6.7h.

What is the month with the lowest UV index?

The months with the lowest UV index in Cayucos are January through April, November and December, with an average maximum UV index of 4.

How high is the UV index in January?

In January, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Cayucos, CA

Average temperature in January - Cayucos, CA
  • Average high temperature in January: 61.2°F

The warmest month (with the highest average high temperature) is September (76.3°F).
The month with the lowest average high temperature is December (59.2°F).

  • Average low temperature in January: 48.4°F

The month with the highest average low temperature is September (59.9°F).
The coldest month (with the lowest average low temperature) is February (47.3°F).

Average pressure in January
Cayucos, CA

Average pressure in January - Cayucos, CA
  • Average pressure in January: 30.12"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June and September (29.91"Hg).

Average wind speed in January
Cayucos, CA

Average wind speed in January - Cayucos, CA
  • Average wind speed in January: 6.7mph

The windiest month (with the highest average wind speed) is May (7.9mph).
The calmest months (with the lowest average wind speed) are August and September (6mph).

Average humidity in January
Cayucos, CA

Average humidity in January - Cayucos, CA
  • Average humidity in January: 66%

The month with the highest relative humidity is March (70%).
The months with the lowest relative humidity are September and October (61%).

Average rainfall in January
Cayucos, CA

Average rainfall in January - Cayucos, CA
  • Average rainfall in January: 1.81"

The wettest month (with the highest rainfall) is January (1.81").
The driest month (with the least rainfall) is August (0.04").

Average rainfall days in January
Cayucos, CA

Average rainfall days in January - Cayucos, CA
  • Average rainfall days in January: 6.8 days

The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.7 days).

Average sea temperature in January
Cayucos, CA

Average sea temperature in January - Cayucos, CA
  • Average sea temperature in January: 55.6°F

The best months for swimming (with the highest average sea temperature) are August and October (58.6°F).
The coldest month (with the lowest average sea temperature) is April (54.3°F).

Average daylight in January /
Average sunshine in January
Cayucos, CA

Average daylight in January / Average sunshine in January - Cayucos, CA
  • Average daylight in January: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in January: 6h and 4min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

Average sunshine days in January
Cayucos, CA

Average sunshine days in January - Cayucos, CA
  • Average sunshine days in January: 23.3 days

The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is February (20.1 days).

Average UV index in January
Cayucos, CA

Average UV index in January - Cayucos, CA
  • Average UV index in January: 4

The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).

Average cloud cover in January
Cayucos, CA

Average cloud cover in January - Cayucos, CA
  • Average cloud cover in January: 24

The month with the most cloud cover is March (Cloud cover 28).
The months with the least cloud cover are August and September (Cloud cover 7).

Average visibility in January
Cayucos, CA

Average visibility in January - Cayucos, 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).

Cayucos, California, USA

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