Santo Tomé Temperature by Month
Santo Tomé, Argentina has an average annual maximum temperature of 26°C (79°F), ranging from 18°C (64°F) in July to 32°C (90°F) in January. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Santo Tomé Monthly Temperatures
The climate in Santo Tomé is dynamic, ranging widely from pleasant in winter to very warm in summer. Nights are significantly colder, with lows dropping from 20°C (68°F) in January to 7°C (45°F) in July.
The chart below illustrates the average maximum day and minimum night temperatures in Santo Tomé by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. January, the city's warmest month, sees 271 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Santo Tomé vs Argentina
The map below shows the annual temperature across Argentina. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Santo Tomé vs World: Temperature Compared
Santo Tomé'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.
Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
What Does the Temperature Feel Like in Santo Tomé?
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 Santo Tomé, July is the coolest month, with average highs of 18°C (64°F) and humidity around 81% — considered very high. In January, the warmest month, temperatures average 32°C (90°F) with 71% 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 Santo Tomé's weather — including monthly rainfall, sunshine hours, and humidity — visit our Santo Tomé climate page.
