Rockport (TX) Temperature by Month
Rockport, Texas, United States of America has an average annual maximum temperature of 27°C (81°F), ranging from 19°C (66°F) in January to 34°C (93°F) in August. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Rockport Monthly Temperatures
In Rockport, temperatures can shift dramatically between very warm in summer and pleasant in winter. Nights follow the same pattern, with lows ranging from 26°C (79°F) in August to 8°C (46°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Rockport by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. August, the city's warmest month, sees 301 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Rockport 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.
very warm
warm
pleasant
moderate
cold
very cold
Rockport vs World: Temperature Compared
Rockport's average annual maximum temperature is 27°C (81°F). To put that in context, here's how it compares to a few well-known destinations:
Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation — summers are often cool and foggy, winters mild.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
What Does the Temperature Feel Like in Rockport?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Rockport, January is the coolest month, with average highs of 19°C (66°F) and humidity around 76% — considered high. In August, the warmest month, temperatures average 34°C (93°F) with 74% humidity — conditions that feel high. For a full picture, see our humidity page.
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.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Rockport this rarely lasts long on the ground.
For more on Rockport's weather — including monthly rainfall, sunshine hours, and humidity — visit our Rockport climate page.
