Port Lavaca (TX) Temperature by Month
The average annual maximum temperature in Port Lavaca, Texas, United States of America is 26°C (79°F), with daytime highs ranging from 18°C (64°F) in January to 34°C (93°F) in August. This page covers monthly averages, day-night differences, and how Port Lavaca compares to cities worldwide.
Port Lavaca Monthly Temperatures
The climate in Port Lavaca is known for significant temperature differences throughout the year. At night, this contrast is just as clear, with lows ranging from 25°C (77°F) in August to 7°C (45°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Port Lavaca by month:
The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM, when the sun's heating effect is strongest.
The chart below shows the average temperature throughout the year:
Temperature: Port Lavaca vs the United States of America
The map below shows the annual temperature across the United States of America. You can also select individual months if you want to compare a specific time of year.
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Port Lavaca vs World: Temperature Compared
Port Lavaca's average annual maximum temperature is 26°C (79°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation — summers are often cool and foggy, winters mild.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.
Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.
For more on Port Lavaca's weather — including monthly rainfall, sunshine hours, and humidity — visit our Port Lavaca climate page.
