Sweetwater (TX) Temperature by Month
The average annual maximum temperature in Sweetwater, Texas, United States of America is 25°C (77°F), with daytime highs ranging from 14°C (57°F) in January to 35°C (95°F) in August. This page covers monthly averages, day-night differences, and how Sweetwater compares to cities worldwide.
Sweetwater Monthly Temperatures
Visitors to Sweetwater can expect significant temperature changes throughout the year. Nighttime temperatures also vary widely, ranging from 22°C (72°F) in August to -1°C (30°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Sweetwater 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 315 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Sweetwater 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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Sweetwater vs World: Temperature Compared
Sweetwater's average annual maximum temperature is 25°C (77°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.
Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.
Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.
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.
Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.
Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.
For more on Sweetwater's weather — including monthly rainfall, sunshine hours, and humidity — visit our Sweetwater climate page.
