Ilhéus Temperature by Month

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

Ilhéus enjoys a stable climate with temperatures staying pretty much the same throughout the year. Maximum daytime temperatures range from a comfortable 26°C (79°F) in July to a comfortable 30°C (86°F) in February. Nights are consistently cool, with lows between 24°C (75°F) and 21°C (70°F).

The chart below illustrates the average maximum day and minimum night temperatures in Ilhéus by month:

The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. February, the city's warmest month, gets 218 hours of sunshine.

The chart below shows the average temperature throughout the year:

Ilhéus'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:

Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.

On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.

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

Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.

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 Ilhéus, July is the coolest month, with average highs of 26°C (79°F) and humidity around 87%, considered very high. In February, the warmest month, temperatures average 30°C (86°F) with 81% humidity, conditions that feel very 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 Ilhéus this rarely lasts long on the ground.

For more on Ilhéus's weather, including monthly rainfall, sunshine hours, and humidity, visit our Ilhéus climate page.