Jourdanton (TX) Temperature by Month
Jourdanton in Texas, United States of America sees significant seasonal temperature differences, with daytime highs between 19°C (66°F) in January and 37°C (99°F) in August, averaging 28°C (82°F) annually. Explore the full monthly breakdown below.
Jourdanton Monthly Temperatures
Depending on the time of the year, temperatures range from very hot to pleasant in Jourdanton. At night, minimum temperatures range from 23°C (73°F) in August to 4°C (39°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Jourdanton by month:
The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak. August, the city's warmest month, averages 295 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Jourdanton 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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Jourdanton vs World: Temperature Compared
Jourdanton's average annual maximum temperature is 28°C (82°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.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
Osaka, Japan averages 22°C (72°F) annually, with hot humid summers, mild winters, and pleasant spring and autumn seasons.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
What Does the Temperature Feel Like in Jourdanton?
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 Jourdanton, January is the coolest month, with average highs of 19°C (66°F) and humidity around 67% — considered high. In August, the warmest month, temperatures average 37°C (99°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 Jourdanton's weather — including monthly rainfall, sunshine hours, and humidity — visit our Jourdanton climate page.
