Coimbra Temperature by Month
The average annual maximum temperature in Coimbra, Beiras region, Portugal is 21°C (70°F), with daytime highs ranging from 15°C (59°F) in January to 29°C (84°F) in August. This page covers monthly averages, day-night differences, and how Coimbra compares to cities worldwide.
Coimbra Monthly Temperatures
Visitors to Coimbra will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 16°C (61°F) in August to 5°C (41°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Coimbra by month:
The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM, when the sun's heating effect is strongest. August, the warmest month, gets 301 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
49-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in July
Historical Coimbra Temperatures: 1976-2025
Browse day-by-day temperature records for Coimbra spanning 50 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Coimbra 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
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pleasant
moderate
cold
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Coimbra vs World: Temperature Compared
Coimbra's average annual maximum temperature is 21°C (70°F). To put that in context, here's how it compares to a few well-known destinations:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
Glasgow, Scotland averages 13°C (55°F) a year — mild but often grey, with cold winters and rarely hot summers.
Chicago, USA averages 15°C (59°F) annually — known for extreme seasonal swings, from bitterly cold winters to warm summers.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
What Does the Temperature Feel Like in Coimbra?
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 Coimbra, 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 29°C (84°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.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Coimbra's weather — including monthly rainfall, sunshine hours, and humidity — visit our Coimbra climate page.
