Climate in Transylvania

Average daytime and nighttime temperatures

All climatic diagrams on this site result from the collected data from five measuring weather stations in Transylvania.
All data correspond to the average monthly values of the last 20 years.

Back to overview: Romania

Transylvania is one of the coldest regions in Romania with an average daily high temperature of only 16 degrees centigrade. The climate widely corresponds to Central European weather conditions. It is cold, wet and a few beautiful summer months are also happening during a year. Due to the warmer temperatures the best time for traveling is from May to September. Less attractive are the cold months from November to March.
Overview: Climate in Romania
Daylengths and sun positions in Romania
Compare climate with other regions or countries
Hours of sunshine per daySunshine hours per day in Transylvania
The number of hours of sunshine refers to the time when the sun is actually visible. That is, without any obstruction of visibility by clouds, fog or mountains. With 9 hours per day, July is the sunniest month in greater region Transylvania. In December the sun shines the shortest.
Rainy days per monthRainy days per month in Transylvania
A rainy day is a day on which at least an amount of 0.1 mm precipitation (=0.1 liter) per square meter falls. This can be rain, snow, hail or even dew. So it does not have to rain the whole day. With 12 rainy days, May offers the most number of rainy days, and in September the least.
Precipitation in mm/dayPrecipitation in Transylvania
The amount of precipitation is measured in millimeters per square meter. Thus, at two mm/day, two liters of water fall on one square meter within 24 hours. With only 1.1 mm, the least rain falls in February. June, on the other hand, has the most rain.
Relative humidity in %Relative humidity in Transylvania
Warm air can absorb more moisture than cold air. The relative humidity indicates how much moisture of the physically possible is actually contained in the air. At high humidity, the person feels uncomfortable and perceives this as oppressive. In general, a relative humidity of 40-60% gives as pleasant. With only 71% humidity on average, it is quite dry in April. The highest value of 87% is experienced here in January.
Absolute humidity in g/m³Absolute humidity in Transylvania
In warm months, there is also a higher absolute humidity almost everywhere. At a temperature of 25°C, air can absorb up to 23 grams of water per cubic meter. At 20°C, it is only 17.3 grams. A relative humidity of 40% at 25°C thus corresponds to an absolute humidity of 9.2 grams of water. From a proportion of approx. 13.5 grams, humans perceive the air as muggy. This limit is only reached in a few months in Transylvania, although these are always average values.
Humidex in °CHumidex in Transylvania
The "Humidex" (humidity index) is an index of well-being in warmer areas, calculated from the air temperature, relative humidity and dew point. The index corresponds approximately to the temperature felt. At high temperatures, the body transports heat away by sweating. At high humidity the ambient air can only absorb a small amount of sweat and thus one feels uncomfortable. An index of 20-29 is considered comfortable. Up to 39, people perceive the air as slightly uncomfortable, and above 40, as very uncomfortable. Values above 45 are dangerous in the long run and often lead to heat stroke.
Climate charts for other greater regions in Romania

Map of Transylvania

Most important cities in the greater region »Transylvania«

Alone 4 cities with over 100,000 inhabitants are located here. The greater region has a west-east extension of about 300 km and over 240 km from north to south.

It consists of the nine counties Alba, Bistrita-Nasaud, Brasov, Cluj, Covasna, Harghita, Hunedoara, Mures and Sibiu.

CityPopulationGeo position
Sibiu425,90645° 47' 60"N24° 8' 60"E
Cluj-Napoca303,04746° 46' 0"N23° 36' 0"E
Brasov275,51445° 38' 55"N25° 36' 22"E
Targu-Mures146,86346° 32' 33"N24° 33' 27"E
Bistrita81,31847° 7' 59"N24° 30' 0"E
Hunedoara69,13645° 45' 0"N22° 53' 60"E
Deva67,80245° 52' 60"N22° 53' 60"E
Alba Iulia66,08546° 4' 0"N23° 34' 60"E
Sfântu-Gheorghe60,67745° 52' 0"N25° 46' 60"E
Turda54,58646° 34' 0"N23° 46' 60"E
Medias53,04046° 10' 0"N24° 21' 0"E
Petrosani44,18745° 25' 0"N23° 22' 0"E
Miercurea-Ciuc41,28246° 21' 0"N25° 48' 0"E
Dej38,03347° 8' 60"N23° 52' 0"E
Odorheiu Secuiesc36,53246° 17' 60"N25° 18' 0"E
Sighisoara34,53746° 13' 17"N24° 47' 34"E
Fogarasch34,03445° 51' 0"N24° 58' 0"E
Lupeni30,48845° 21' 37"N23° 14' 18"E
Sacele29,91845° 37' 0"N25° 42' 40"E
Vulcan28,86945° 22' 60"N23° 16' 0"E
Tarnaveni28,63446° 19' 55"N24° 17' 48"E
Aiud28,34146° 18' 36"N23° 43' 17"E
Sebes27,24645° 57' 23"N23° 34' 16"E
Câmpia Turzii26,45746° 32' 60"N23° 52' 60"E
Petrila25,23445° 27' 0"N23° 25' 0"E
Zarnesti24,92645° 33' 39"N25° 19' 4"E
Cugir24,73445° 50' 11"N23° 22' 12"E
Codlea24,18845° 42' 0"N25° 26' 60"E
Gherla23,74147° 1' 60"N23° 55' 0"E
Orastie20,76345° 49' 60"N23° 11' 60"E

Data basis: German Weather Service, individual values averaged and supplemented by own elements. Data on cities and inhabitants:, United Nations Statistics Division and own research.
International tourismThe 41 most popular travel countriesA ranking of international tourism over 41 countries. USA ranks 3rd.
Antarctica: ClimateClimate and temperature development in the AntarcticaA climate analysis for Antarctica incl. temperatures, humidity, rain days per month, hours of sunshine, Water temperature, Rainfalls
United States: EarthquakeRecent earthquakes and their magnitudes in the United StatesEarthquakes and their intensities in the United States