Climate and monthly weather forecast
Port Lavaca, TX

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Weather in January

January, like December, in Port Lavaca, Texas, is another enjoyable winter month, with temperature in the range of an average high of 62.2°F (16.8°C) and an average low of 49.6°F (9.8°C). With its high average temperature of 62.2°F (16.8°C) and a low of 49.6°F (9.8°C), January is regarded as the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Port Lavaca, is another comfortable month, with an average temperature varying between 65.1°F (18.4°C) and 53.4°F (11.9°C). February experiences an average high-temperature of a still refreshing 65.1°F (18.4°C), barely different from January's 62.2°F (16.8°C). Weather in February »

Weather in March

March, the first month of the spring in Port Lavaca, is an agreeable month, with an average temperature ranging between min 59.4°F (15.2°C) and max 70.7°F (21.5°C). With the onset of March, Port Lavaca's average high-temperature experiences a slight rise, moving from February's comfortable 65.1°F (18.4°C) to an agreeable 70.7°F (21.5°C). Weather in March »

Weather in April

April is a warm spring month in Port Lavaca, Texas, with temperature in the range of an average high of 77°F (25°C) and an average low of 65.3°F (18.5°C). April's onset brings a minor rise in the average high-temperature, moving from a pleasant 70.7°F (21.5°C) in March to a moderately hot 77°F (25°C). Weather in April »

Weather in May

The last month of the spring, May, is also a moderately hot month in Port Lavaca, Texas, with temperature in the range of an average low of 72.3°F (22.4°C) and an average high of 82.8°F (28.2°C). With the beginning of May, Port Lavaca's average high-temperature sees a minor increase, transitioning from a warm 77°F (25°C) in April to a still moderately hot 82.8°F (28.2°C). Weather in May »

Weather in June

June, the first month of the summer in Port Lavaca, is a tropical month, with temperature in the range of an average high of 88.2°F (31.2°C) and an average low of 77.2°F (25.1°C). The onset of June marks a slight increase in the average high-temperature, moving from a moderately hot 82.8°F (28.2°C) in May to a tropical 88.2°F (31.2°C). Weather in June »

Weather in July

July, the same as June, in Port Lavaca, Texas, is another hot summer month, with an average temperature fluctuating between 89.8°F (32.1°C) and 79°F (26.1°C). A minimal variation is noted in Port Lavaca's average high-temperature at the onset of July, reaching a still hot 89.8°F (32.1°C) from June's 88.2°F (31.2°C). Weather in July »

Weather in August

The last month of the summer, August, is also a hot month in Port Lavaca, Texas, with an average temperature ranging between max 90.7°F (32.6°C) and min 79.3°F (26.3°C). In Port Lavaca, Texas, August is the month with the highest recorded average temperatures, measuring a high of 90.7°F (32.6°C) and a low of 79.3°F (26.3°C). During August, the heat index is computed to be an extremely hot 109.4°F (43°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a hot month in Port Lavaca, Texas, with an average temperature varying between 86.9°F (30.5°C) and 76.1°F (24.5°C). With the start of September, Port Lavaca measures an average high-temperature of a still tropical 86.9°F (30.5°C), not significantly differing from August's 90.7°F (32.6°C). Weather in September »

Weather in October

October, the same as September, is another warm autumn month in Port Lavaca, Texas, with an average temperature varying between 80.6°F (27°C) and 68.5°F (20.3°C). The shift from September to October includes a small decrease in the average high-temperature, from a tropical 86.9°F (30.5°C) to a moderately hot 80.6°F (27°C). Weather in October »

Weather in November

November, the last month of the autumn in Port Lavaca, is another pleasant month, with an average temperature ranging between min 59.7°F (15.4°C) and max 70.9°F (21.6°C). November's onset corresponds with a shift in the average high-temperature, moving from a warm 80.6°F (27°C) in October to an agreeable 70.9°F (21.6°C). Weather in November »

Weather in December

The first month of the winter, December, is also an enjoyable month in Port Lavaca, Texas, with an average temperature ranging between max 63.7°F (17.6°C) and min 52.9°F (11.6°C). December brings a minor shift in the average high-temperature, adjusting from an agreeable 70.9°F (21.6°C) in November to a refreshing 63.7°F (17.6°C). Weather in December »
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Frequently asked questions

What part of the year is the coldest in Port Lavaca?

January, with its average high-temperature of 62.2°F (16.8°C) and an average low-temperature of 49.6°F (9.8°C), holds the record as the coldest month in Port Lavaca, Texas.

How many days does it rain in Port Lavaca?

Throughout the year, there are 156.8 rainfall days, and 23.5" (597mm) of precipitation is accumulated.

When does it snow in Port Lavaca?

January is the only month when snow falls.

What is the snowiest month in Port Lavaca?

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

How much does it snow in Port Lavaca?

In Port Lavaca, Texas, during the entire year, snow falls for 0.2 days and aggregates up to 0.04" (1mm) of snow.

When is the ocean coldest in Port Lavaca?

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

What are the months with the lowest UV index in Port Lavaca?

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

What is the most humid month in Port Lavaca?

February and March, with an average relative humidity of 79%, are most humid months.

What is the driest month in Port Lavaca?

February is the month with the least rainfall in Port Lavaca, Texas. Rain falls for 11.2 days and accumulates 0.87" (22mm) of precipitation.

When it does not snow in Port Lavaca?

February through December are months without snowfall in Port Lavaca, Texas.

When is Daylight Saving Time (DST) in Port Lavaca?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

What is the month with the highest UV index in Port Lavaca?

The months with the highest UV index are May through August, with an average maximum UV index of 7.

When are the longest days in Port Lavaca?

With an average of 13h and 54min of daylight, June has the longest days of the year in Port Lavaca.

What month has the most sunshine in Port Lavaca?

July has the most sunshine of the year in Port Lavaca, with an average of 10.8h of sunshine.

What are the warmest months in Port Lavaca?

August, characterized by an average high temperature of 90.7°F (32.6°C) and a low temperature of 79.3°F (26.3°C), is generally the warmest month.

When is the ocean warmest in Port Lavaca?

With an average ocean temperature of 86.7°F (30.4°C), August is the month with the warmest seawater.

What is the rainiest month in Port Lavaca?

The month with the most rainfall is September, when the rain falls for 19.8 days and typically aggregates up to 3.35" (85mm) of precipitation.

What is the least humid month in Port Lavaca?

With an average relative humidity of 71%, October is the least humid month.

What is the month with the shortest days in Port Lavaca?

The month with the shortest days is December, with an average of 10h and 24min of daylight.

What is the month with the least sunshine in Port Lavaca?

With an average of 4.7h of sunshine, December has the least sunshine of the year in Port Lavaca, Texas.

Average temperature
Port Lavaca, TX

Average temperature - Port Lavaca, TX

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).

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).

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Average pressure
Port Lavaca, TX

Average pressure - Port Lavaca, TX

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

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Average wind speed
Port Lavaca, TX

Average wind speed - Port Lavaca, TX

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).

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Average humidity
Port Lavaca, TX

Average humidity - Port Lavaca, TX

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

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Average rainfall
Port Lavaca, TX

Average rainfall - Port Lavaca, TX

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

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Average rainfall days
Port Lavaca, TX

Average rainfall days - Port Lavaca, TX

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).

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Average snowfall
Port Lavaca, TX

Average snowfall - Port Lavaca, TX

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").

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Average snowfall days
Port Lavaca, TX

Average snowfall days - Port Lavaca, TX

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).

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Average sea temperature
Port Lavaca, TX

Average sea temperature - Port Lavaca, TX

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).

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Average daylight / Average sunshine
Port Lavaca, TX

Average daylight / Average sunshine - Port Lavaca, TX

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).

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).

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Average sunshine days
Port Lavaca, TX

Average sunshine days - Port Lavaca, TX

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

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Average UV index
Port Lavaca, TX

Average UV index - Port Lavaca, TX

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).

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Average visibility
Port Lavaca, TX

Average visibility - Port Lavaca, TX

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).

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Port Lavaca, Texas, USA

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