Caldas da Rainha Temperature by Month
Caldas da Rainha, Centro Region, Portugal has an average annual maximum temperature of 20°C (68°F), with moderate seasonal shifts ranging from 15°C (59°F) in January to 26°C (79°F) in August. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Caldas da Rainha Monthly Temperatures
The climate in Caldas da Rainha experiences moderate temperature changes, with mild shifts between seasons. At night, temperatures range from 18°C (64°F) in August to 9°C (48°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Caldas da Rainha by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. August, the city's warmest month, sees 255 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Caldas da Rainha 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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Caldas da Rainha vs World: Temperature Compared
Caldas da Rainha'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:
Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.
Glasgow, Scotland averages 13°C (55°F) a year — mild but often grey, with cold winters and rarely hot summers.
New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
What Does the Temperature Feel Like in Caldas da Rainha?
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 Caldas da Rainha, January is the coolest month, with average highs of 15°C (59°F) and humidity around 82% — considered very high. In August, the warmest month, temperatures average 26°C (79°F) with 89% 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.
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 Caldas da Rainha's weather — including monthly rainfall, sunshine hours, and humidity — visit our Caldas da Rainha climate page.
