Karlovo Temperature by Month
The average annual maximum temperature in Karlovo, Plovdiv, Bulgaria is 17°C (63°F), with daytime highs ranging from 5°C (41°F) in January to 28°C (82°F) in August. This page covers monthly averages, day-night differences, and how Karlovo compares to cities worldwide.
Karlovo Monthly Temperatures
The climate in Karlovo is dynamic, ranging widely from chilly in winter to comfortable in summer. Nights are significantly colder, with lows dropping from 16°C (61°F) in August to -4°C (25°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Karlovo by month:
Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating. August, the warmest month of the year, receives 314 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Karlovo vs Bulgaria
The map below shows the annual temperature across Bulgaria. You can also select individual months if you want to compare a specific time of year.
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Karlovo vs World: Temperature Compared
Karlovo's average annual maximum temperature is 17°C (63°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation — summers are often cool and foggy, winters mild.
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 Karlovo?
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 Karlovo, January is the coolest month, with average highs of 5°C (41°F) and humidity around 75% — considered high. In August, the warmest month, temperatures average 28°C (82°F) with 47% 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.
Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.
Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.
For more on Karlovo's weather — including monthly rainfall, sunshine hours, and humidity — visit our Karlovo climate page.
