Georgetown (TX) Temperature by Month

The average annual maximum temperature in Georgetown, Texas, United States of America is 26°C (79°F), with daytime highs ranging from 16°C (61°F) in January to 36°C (97°F) in August. This page covers monthly averages, day-night differences, and how Georgetown compares to cities worldwide.

Visitors to Georgetown will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 23°C (73°F) in August to 2°C (36°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Georgetown by month:

Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating. August, the warmest month of the year, receives 298 hours of sunshine.

The chart below shows the average temperature throughout the year:

Georgetown'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:

Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.

Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.

New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.

Melbourne, Australia averages 20°C (68°F) annually, known for unpredictable weather, with four seasons sometimes happening in one day.

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 Georgetown, January is the coolest month, with average highs of 16°C (61°F) and humidity around 67%, considered high. In August, the warmest month, temperatures average 36°C (97°F) with 64% 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 Georgetown this rarely lasts long on the ground.

For more on Georgetown's weather, including monthly rainfall, sunshine hours, and humidity, visit our Georgetown climate page.