Baytown (TX) Temperature by Month
Baytown, Texas, United States of America has an average annual maximum temperature of 26°C (79°F), ranging from 17°C (63°F) in January to 34°C (93°F) in August. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Baytown Monthly Temperatures
With significant temperature fluctuations, Baytown enjoys distinct seasons year-round. Nighttime lows range from 25°C (77°F) in August to 6°C (43°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Baytown by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. August, the warmest month, averages 270 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Baytown 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
Baytown vs World: Temperature Compared
Baytown'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:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.
Buenos Aires, Argentina averages 23°C (73°F) a year, with hot summers and mild winters — and seasons reversed compared to Europe.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
What Does the Temperature Feel Like in Baytown?
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 Baytown, January is the coolest month, with average highs of 17°C (63°F) and humidity around 75% — considered high. In August, the warmest month, temperatures average 34°C (93°F) with 75% 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 Baytown this rarely lasts long on the ground.
For more on Baytown's weather — including monthly rainfall, sunshine hours, and humidity — visit our Baytown climate page.
