Climate in Transylvania
(Romania)
Average daytime and nighttime temperatures
All climatic diagrams on this site result from the collected data from 5 measuring stations in Transylvania.
All data correspond to the average monthly values of the last 20 years.
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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. Nearly unattractive for tourists are the cold months from November to March.
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› Daylengths and sun positions in Romania
› Compare climate with other regions or countries
Hours of sunshine per day

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 country part Transylvania. In December the sun shines the shortest.
Rainy days per month

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/day

The amount of precipitation is measured in millimeters per square meter. Thus, at 2 mm/day, 2 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 %

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/m³

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 °C

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 country parts in Romania

Most important cities in the country part »Transylvania«
Alone 4 cities with over 100,000 inhabitants are located here. The country part has a west-east extension of about 300 km and over 240 km from north to south.City | Population | Geo-Position | |
---|---|---|---|
Sibiu | 425,906 | 45° 47' 60"N | 24° 8' 60"E |
Cluj-Napoca | 303,047 | 46° 46' 0"N | 23° 36' 0"E |
Brasov | 275,514 | 45° 38' 55"N | 25° 36' 22"E |
Targu-Mures | 146,863 | 46° 32' 33"N | 24° 33' 27"E |
Bistrita | 81,318 | 47° 7' 59"N | 24° 30' 0"E |
Hunedoara | 69,136 | 45° 45' 0"N | 22° 53' 60"E |
Deva | 67,802 | 45° 52' 60"N | 22° 53' 60"E |
Alba Iulia | 66,085 | 46° 4' 0"N | 23° 34' 60"E |
Sfântu-Gheorghe | 60,677 | 45° 52' 0"N | 25° 46' 60"E |
Turda | 54,586 | 46° 34' 0"N | 23° 46' 60"E |
Medias | 53,040 | 46° 10' 0"N | 24° 21' 0"E |
Petrosani | 44,187 | 45° 25' 0"N | 23° 22' 0"E |
Miercurea-Ciuc | 41,282 | 46° 21' 0"N | 25° 48' 0"E |
Dej | 38,033 | 47° 8' 60"N | 23° 52' 0"E |
Odorheiu Secuiesc | 36,532 | 46° 17' 60"N | 25° 18' 0"E |
Sighisoara | 34,537 | 46° 13' 17"N | 24° 47' 34"E |
Fogarasch | 34,034 | 45° 51' 0"N | 24° 58' 0"E |
Lupeni | 30,488 | 45° 21' 37"N | 23° 14' 18"E |
Sacele | 29,918 | 45° 37' 0"N | 25° 42' 40"E |
Vulcan | 28,869 | 45° 22' 60"N | 23° 16' 0"E |
Tarnaveni | 28,634 | 46° 19' 55"N | 24° 17' 48"E |
Aiud | 28,341 | 46° 18' 36"N | 23° 43' 17"E |
Sebes | 27,246 | 45° 57' 23"N | 23° 34' 16"E |
Câmpia Turzii | 26,457 | 46° 32' 60"N | 23° 52' 60"E |
Petrila | 25,234 | 45° 27' 0"N | 23° 25' 0"E |
Zarnesti | 24,926 | 45° 33' 39"N | 25° 19' 4"E |
Cugir | 24,734 | 45° 50' 11"N | 23° 22' 12"E |
Codlea | 24,188 | 45° 42' 0"N | 25° 26' 60"E |
Gherla | 23,741 | 47° 1' 60"N | 23° 55' 0"E |
Orastie | 20,763 | 45° 49' 60"N | 23° 11' 60"E |
Data basis: German Weather Service, individual values averaged and supplemented by own elements. Data on cities and inhabitants: geonames.org, United Nations Statistics Division and own research.