Penalva do Castelo Temperature by Month
Penalva do Castelo, Centro Region, Portugal has an average annual maximum temperature of 20°C (68°F), ranging from 11°C (52°F) in January to 29°C (84°F) in July. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Penalva do Castelo Monthly Temperatures
Depending on the time of the year, temperatures range from warm to cold in Penalva do Castelo. Nighttime lows follow the same pattern, ranging from 15°C (59°F) to 3°C (37°F).
The chart below illustrates the average maximum day and minimum night temperatures in Penalva do Castelo by month:
Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM. July, the warmest month, sees 345 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Penalva do Castelo 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.
very warm
warm
pleasant
moderate
cold
very cold
Penalva do Castelo vs World: Temperature Compared
Penalva do Castelo'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:
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.
Chicago, USA averages 15°C (59°F) annually — known for extreme seasonal swings, from bitterly cold winters to warm summers.
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 Penalva do Castelo?
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 the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.
In Penalva do Castelo, January is the coolest month, with average highs of 11°C (52°F) and humidity around 80% — considered very high. In July, the warmest month, temperatures average 29°C (84°F) with 57% humidity — conditions that feel moderate. 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 Penalva do Castelo this rarely lasts long on the ground.
For more on Penalva do Castelo's weather — including monthly rainfall, sunshine hours, and humidity — visit our Penalva do Castelo climate page.
