Schertz (TX) Temperature by Month
Schertz, Texas, United States of America has an average annual maximum temperature of 27°C (81°F), ranging from 17°C (63°F) in January to 36°C (97°F) in August. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Schertz Monthly Temperatures
Depending on the time of the year, temperatures range from very hot to mild in Schertz. At night, minimum temperatures range from 24°C (75°F) in August to 4°C (39°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Schertz 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 295 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Schertz 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
Schertz vs World: Temperature Compared
Schertz'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:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Glasgow, Scotland averages 13°C (55°F) a year — mild but often grey, with cold winters and rarely hot summers.
Beijing, China averages 20°C (68°F) annually, but with big seasonal swings — very cold winters and hot summers.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
What Does the Temperature Feel Like in Schertz?
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 Schertz, January is the coolest month, with average highs of 17°C (63°F) and humidity around 67% — considered high. In August, the warmest month, temperatures average 36°C (97°F) with 65% 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.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Schertz's weather — including monthly rainfall, sunshine hours, and humidity — visit our Schertz climate page.
