January weather forecast
Morro Bay, CA

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The iconic Morro Rock, a famous tourist spot in Morro Bay, California
The iconic Morro Rock, a famous tourist spot in Morro Bay, California

Weather in January

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

Temperature

Morro Bay transitions into January recording an average high-temperature of an enjoyable 61.2°F (16.2°C), closely aligning with the preceding month's temperature. Throughout January, the nighttime temperature averages to a frosty 48.4°F (9.1°C).

Humidity

In Morro Bay, the average relative humidity in January is 66%.

Rainfall

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

Ocean temperature

In Morro Bay, in January, the average water temperature is 55.6°F (13.1°C).
Note: Swimming at temperatures less than 50°F (10°C) in 55.6°F (13.1°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 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

The average sunshine in January is 6.7h.

UV index

The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 4 during January translates into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures 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?

In Morro Bay, 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 Morro Bay, in January, it is raining for 6.8 days, with typically 1.81" (46mm) of accumulated 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 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.

How many hours of daylight does Morro Bay have in January?

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

When are sunrise and sunset in January?

In January, on the first day of the month, 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 Morro Bay have in January?

In Morro Bay, the average sunshine duration in January is 6.7h.

When is the lowest UV index?

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

What is the UV index reading in January in Morro Bay?

In January, the average daily maximum UV index in Morro Bay is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Morro Bay, CA

Average temperature in January - Morro Bay, 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
Morro Bay, CA

Average pressure in January - Morro Bay, 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
Morro Bay, CA

Average wind speed in January - Morro Bay, 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
Morro Bay, CA

Average humidity in January - Morro Bay, 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
Morro Bay, CA

Average rainfall in January - Morro Bay, 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
Morro Bay, CA

Average rainfall days in January - Morro Bay, 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
Morro Bay, CA

Average sea temperature in January - Morro Bay, 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
Morro Bay, CA

Average daylight in January / Average sunshine in January - Morro Bay, 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
Morro Bay, CA

Average sunshine days in January - Morro Bay, 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
Morro Bay, CA

Average UV index in January - Morro Bay, 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
Morro Bay, CA

Average cloud cover in January - Morro Bay, 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
Morro Bay, CA

Average visibility in January - Morro Bay, 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).

Morro Bay, California, USA

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