Serra Temperature by Month
The average annual maximum temperature in Serra, Centro Region, Portugal is 23°C (73°F), with daytime highs ranging from 15°C (59°F) in January to 31°C (88°F) in August. This page covers monthly averages, day-night differences, and how Serra compares to cities worldwide.
Serra Monthly Temperatures
Visitors to Serra will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 17°C (63°F) in August to 6°C (43°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Serra by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. August, the city's warmest month, gets 301 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Serra 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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warm
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Serra vs World: Temperature Compared
Serra's average annual maximum temperature is 23°C (73°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.
Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.
Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.
Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.
What Does the Temperature Feel Like in Serra?
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 Serra, January is the coolest month, with average highs of 15°C (59°F) and humidity around 78% — considered high. In August, the warmest month, temperatures average 31°C (88°F) with 67% 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.
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 Serra this rarely lasts long on the ground.
For more on Serra's weather — including monthly rainfall, sunshine hours, and humidity — visit our Serra climate page.
