São Luís Temperatures: Monthly Averages and Year-Round Insights
On this page, we’ll explore São Luís’s temperature statistics in detail, including day and night variations and monthly averages. We’ll also compare the annual temperature to other cities in Brazil.
Monthly Temperature Averages
The temperature in São Luís changes very little across the seasons, maintaining a similar climate throughout the year. On average, maximum daytime temperatures range from a very warm 31°C in August to a comfortable 29°C in March. Nighttime temperatures can drop, with averages reaching 25°C in March.
The chart below illustrates the average maximum day and minimum night temperatures in São Luís by month:
The lowest temperatures typically occur between 4 AM and 6 AM, while the peak temperatures are generally observed around 3 PM, when the sun's heating is most intense. August, the city’s warmest month, enjoys 260 hours of sunshine.
The chart below shows the average temperature throughout the year:
March, the city’s coldest month, sees about 434 mm of rainfall spread over roughly 31 days. It records 107 hours of sunshine of sunshine.
Annual Temperatures in Brazil Compared
The map below shows the annual temperature across Brazil. You can also select the different months in case you are interested in a specific month.
very warm
warm
pleasant
moderate
cold
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São Luís Temperatures Compared World Wide
São Luís’s average annual maximum temperature is 30°C. Let’s compare this with some popular tourist destinations:
The city of Rome, Italy, has an average annual temperature of 20°C, known for its sunny summers and comfortable winters.
In contrast, in Reykjavík, Iceland, the average annual temperature is significantly lower at 9°C, with mild summers and cold winters.
In Seoul, South Korea, the average annual temperature is 18°C, featuring distinct seasons.
In Brisbane, Australia, the average annual temperature is 26°C, making it warmer than Sydney.
How does the temperature feel?
Humidity is an essential factor in how you experience temperature. When a warm period is accompanied by high humidity, it results in a higher perceived temperature. This is especially true when temperatures exceed 25°C, as it can cause greater discomfort.
In São Luís, during the coolest month, March, you will experience 89% humidity, which is considered very high. This is accompanied by an average maximum temperature of 29°C. In the warmest month, August, the humidity is 84% combined with an average maximum temperature of 31°C, which creates a very high-feel temperature. Explore our detailed page on humidity levels for further details.
How are these Temperatures Measured?
Generally, temperature data depicting climate is usually given over a 30-year average in order to reduce short-term fluctuations and reveal better long-term trends in climate conditions.
This temperature data is taken from land-based thermometers, ocean buoys, ships, and satellites. These measurements are transmitted to weather stations and climate centers around the globe where they are processed, averaged, and analyzed in order to monitor the trends and create climate models.
Sea vs. Land Temperatures
The influence of nearby oceans or large water bodies significantly affects local temperatures:
- Ocean Influence: Coastal regions tend to have more stable temperatures, as large bodies of water absorb and release heat slowly. This often results in milder winters and cooler summers compared to inland areas.
- Continental Climates: Landmasses well away from large bodies of water tend to show greater extremes in temperature, having hotter summers and colder winters because of the absence of water as a moderating influence.
For more detailed information about São Luís’s weather, including monthly rainfall, sunshine hours, and humidity levels, visit our São Luís climate page.
Current temperature in São Luís
