January weather forecast
Port Lavaca, TX

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Weather in January

January, the same as December, is another refreshing winter month in Port Lavaca, Texas, with an average temperature varying between 49.6°F (9.8°C) and 62.2°F (16.8°C).

Temperature

With average high and low temperatures of 62.2°F (16.8°C) and 49.6°F (9.8°C) respectively, January is Port Lavaca's coldest month.

Humidity

The average relative humidity in January is 74%.

Rainfall

In Port Lavaca, in January, it is raining for 10.8 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, there are 156.8 rainfall days, and 23.5" (597mm) of precipitation is accumulated.

Snowfall

January is the only month when snow falls. The month with the most snowfall is January, when snow falls for 0.1 days and typically aggregates up to 0.04" (1mm) of snow.

Ocean temperature

The month with the coldest seawater is January, with an average ocean temperature of 60.1°F (15.6°C).
Note: Swimming becomes less enjoyable for most at a surface water temperature of 60.1°F (15.6°C). As the temperature decreases below 69.8°F (21°C), breathing becomes increasingly difficult.

Daylight

The average length of the day in January in Port Lavaca is 10h and 34min.
On the first day of January, sunrise is at 7:19 am and sunset at 5:40 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 6:04 pm CST.

Sunshine

In January, the average sunshine is 5.6h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 4 during January translates into the following directions:
Act with care - The need to guard against sun damage is communicated. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Jul 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

January is the month that records the lowest temperatures, with averages ranging from a high of 62.2°F (16.8°C) to a low of 49.6°F (9.8°C).

What is the temperature in January?

The average high-temperature and low-temperature during January are 62.2°F (16.8°C) and 49.6°F (9.8°C) respectively.

What is the average humidity in January?

In January, the average relative humidity is 74%.

How much does it rain in January?

In January, the rain falls for 10.8 days. Throughout January, 1.46" (37mm) of precipitation is accumulated.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 0.1 days and accumulates 0.04" (1mm) of snow.

When does it start to snow?

January is the first month it typically snows. Throughout January, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

When is the ocean coldest?

January is the month with the coldest seawater, with an average ocean temperature of 60.1°F (15.6°C).

How cold is the water in January?

In Port Lavaca, the average seawater temperature in January is 60.1°F (15.6°C). For most, swimming in 60.1°F (15.6°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

What is the average length of the day in January?

In Port Lavaca, Texas, the average day length in January is 10h and 34min.

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 7:19 am and sunset at 5:40 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 6:04 pm CST.

How many hours of sunshine does Port Lavaca have in January?

The average sunshine duration in January is 5.6h.

When is the lowest UV index?

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

What is the UV index intensity in January?

In January, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
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
Port Lavaca, TX

Average temperature in January - Port Lavaca, TX
  • Average high temperature in January: 62.2°F

The warmest month (with the highest average high temperature) is August (90.7°F).
The month with the lowest average high temperature is January (62.2°F).

  • Average low temperature in January: 49.6°F

The month with the highest average low temperature is August (79.3°F).
The coldest month (with the lowest average low temperature) is January (49.6°F).

Average pressure in January
Port Lavaca, TX

Average pressure in January - Port Lavaca, TX
  • Average pressure in January: 30.14"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in January
Port Lavaca, TX

Average wind speed in January - Port Lavaca, TX
  • Average wind speed in January: 9.9mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is September (8.3mph).

Average humidity in January
Port Lavaca, TX

Average humidity in January - Port Lavaca, TX
  • Average humidity in January: 74%

The months with the highest relative humidity are February and March (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in January
Port Lavaca, TX

Average rainfall in January - Port Lavaca, TX
  • Average rainfall in January: 1.46"

The wettest month (with the highest rainfall) is September (3.35").
The driest month (with the least rainfall) is February (0.87").

Average rainfall days in January
Port Lavaca, TX

Average rainfall days in January - Port Lavaca, TX
  • Average rainfall days in January: 10.8 days

The month with the highest number of rainy days is September (19.8 days).
The month with the least rainy days is January (10.8 days).

Average snowfall in January
Port Lavaca, TX

Average snowfall in January - Port Lavaca, TX
  • Average snowfall in January: 0.04"

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in January
Port Lavaca, TX

Average snowfall days in January - Port Lavaca, TX
  • Average snowfall days in January: 0.1 days

The months with the highest number of snowfall days are January and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

Average sea temperature in January
Port Lavaca, TX

Average sea temperature in January - Port Lavaca, TX
  • Average sea temperature in January: 60.1°F

The best month for swimming (with the highest average sea temperature) is August (86.7°F).
The coldest month (with the lowest average sea temperature) is January (60.1°F).

Average daylight in January /
Average sunshine in January
Port Lavaca, TX

Average daylight in January / Average sunshine in January - Port Lavaca, TX
  • Average daylight in January: 10h and 4min

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • Average sunshine in January: 5h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).

Average sunshine days in January
Port Lavaca, TX

Average sunshine days in January - Port Lavaca, TX
  • Average sunshine days in January: 17.5 days

The month with the most sunshine days is January (17.5 days).
The month with the least sunshine days is September (8.5 days).

Average UV index in January
Port Lavaca, TX

Average UV index in January - Port Lavaca, TX
  • Average UV index in January: 4

The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 4).

Average cloud cover in January
Port Lavaca, TX

Average cloud cover in January - Port Lavaca, TX
  • Average cloud cover in January: 40

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in January
Port Lavaca, TX

Average visibility in January - Port Lavaca, TX
  • 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).

Port Lavaca, Texas, USA

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