São João da Barra Temperature by Month

The average annual maximum temperature in São João da Barra, Brazil is 28°C (82°F), with little variation between seasons. This page covers monthly averages, day-night differences, and how São João da Barra compares to cities worldwide.

The temperature in São João da Barra changes very little across the seasons, maintaining a similar climate throughout the year. Maximum daytime temperatures range from a comfortable 26°C (79°F) in July to a very warm 30°C (86°F) in February. Nighttime lows range from 24°C (75°F) in February to 20°C (68°F) in July.

The chart below illustrates the average maximum day and minimum night temperatures in São João da Barra 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.

The chart below shows the average temperature throughout the year:

São João da Barra'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.

Glasgow, Scotland averages 13°C (55°F) a year, mild but often grey, with cold winters and rarely hot summers.

Chicago, USA averages 15°C (59°F) annually, known for extreme seasonal swings, from bitterly cold winters to warm summers.

Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.

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 São João da Barra's weather, including monthly rainfall, sunshine hours, and humidity, visit our São João da Barra climate page.