São Mateus Temperature by Month
São Mateus in Azores, Portugal sees moderate seasonal temperature shifts, with daytime highs between 17°C (63°F) in February and 24°C (75°F) in August, averaging 20°C (68°F) annually. Explore the full monthly breakdown below.
São Mateus Monthly Temperatures
In São Mateus, seasonal changes bring about a moderate variation in temperatures. Nighttime lows range from 21°C (70°F) in August to 14°C (57°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in São Mateus by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM.
The chart below shows the average temperature throughout the year:
Temperature: São Mateus vs Portugal
The map below shows the annual temperature across Portugal. You can also select individual months if you want to compare a specific time of year.
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São Mateus vs World: Temperature Compared
São Mateus's average annual maximum temperature is 20°C (68°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.
Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.
New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.
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.
Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round — large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.
For more on São Mateus's weather — including monthly rainfall, sunshine hours, and humidity — visit our São Mateus climate page.
