Climate - Cluj Napoca (Romania)
Average weather, temperature, rainfall, sunshine hours
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Climate chart - Cluj Napoca (Romania)
The climate of Cluj-Napoca is moderately continental, characterized by cold winters, with temperatures often below freezing (0 °C or 32 °F), and quite warm summers.
The city is located in northwestern Romania, in Transylvania, 350 meters (1,150 feet) above sea level.
Winter is particularly cold, not only because of the altitude, but also because Transylvania is surrounded by mountains, so cold air tends to stagnate. Fog can form quite frequently. Furthermore, during cold waves, the temperature can drop below -20 °C (-4 °F). The coldest record is -34 °C (-29 °F), recorded in January 1963. From 2001 to 2020, the extreme minimum was -22 °C (-7.5 °F), recorded in December 2002.
In summer, it is often hot during the day, but nights are cool, and sometimes very cool, in fact the temperature can drop to 7/8 °C (45/46 °F) even in July and August. The sun often shines, but there may be rains or thunderstorms.
On the hottest days of the year, the temperature typically reaches 32/33 °C (90/91 °F). The heat record is 38.5 °C (101.5 °F), recorded in August 2012.
Best Time
The best time to visit Cluj-Napoca runs from mid-May to mid-September, since it is the warmest and sunniest period of the year. Sometimes, it can be hot in July and August, while in other circumstances, nights can be cool or even a little cold even in these months, so it can be useful to bring a sweatshirt or sweater and a light jacket for the evening.
Cluj Napoca - Climate data
The average temperature of the coldest month (January) is of -2.2 °C (28.1 °F), that of the warmest months (July, August) is of 20.4 °C (68.8 °F). Here are the average temperatures.Cluj Napoca - Average temperatures (1991-2020) | Month | Min (°C) | Max (°C) | Mean (°C) | Min (°F) | Max (°F) | Mean (°F) |
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| January | -5.2 | 0.9 | -2.2 | 23 | 34 | 28.1 |
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| February | -3.8 | 4.1 | 0.1 | 25 | 39 | 32.3 |
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| March | -0.1 | 10.2 | 5 | 32 | 50 | 41.1 |
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| April | 4.7 | 16.5 | 10.6 | 40 | 62 | 51.1 |
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| May | 9.1 | 21.4 | 15.2 | 48 | 71 | 59.4 |
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| June | 12.8 | 24.9 | 18.8 | 55 | 77 | 65.9 |
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| July | 14.2 | 26.7 | 20.4 | 58 | 80 | 68.8 |
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| August | 13.9 | 27 | 20.4 | 57 | 81 | 68.8 |
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| September | 9.6 | 21.5 | 15.6 | 49 | 71 | 60 |
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| October | 4.9 | 15.6 | 10.2 | 41 | 60 | 50.4 |
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| November | 0.6 | 8.4 | 4.5 | 33 | 47 | 40.1 |
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| December | -3.6 | 1.9 | -0.8 | 26 | 35 | 30.5 |
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| Year | 4.8 | 15 | 9.85 | 40.6 | 59 | 50 |
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Precipitation amounts to 625 millimeters (24.6 inches) per year: so, it is at an intermediate level. It ranges from 25 mm (1 in) in the driest months (January, February) to 90 mm (3.5 in) in the wettest ones (June, July) Here is the average precipitation.Cluj Napoca - Average precipitation| Month | Millimeters | Inches | Days |
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| January | 25 | 1 | 6 |
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| February | 25 | 1 | 7 |
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| March | 35 | 1.4 | 7 |
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| April | 50 | 2 | 9 |
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| May | 70 | 2.8 | 10 |
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| June | 90 | 3.5 | 11 |
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| July | 90 | 3.5 | 10 |
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| August | 65 | 2.6 | 7 |
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| September | 55 | 2.2 | 8 |
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| October | 45 | 1.8 | 7 |
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| November | 35 | 1.4 | 7 |
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| December | 35 | 1.4 | 7 |
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| Year | 625 | 24.6 | 96 |
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There are on average around 2030 sunshine hours per year. Here are the average hours of sunshine per day.
Cluj Napoca - Sunshine hours| Month | Average | Total |
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January | 2 | 65 | February | 3.5 | 100 | March | 5 | 155 | April | 6 | 185 | May | 8 | 240 | June | 8.5 | 255 | July | 9 | 275 | August | 8.5 | 265 | September | 6.5 | 195 | October | 5 | 160 | November | 3 | 90 | December | 1.5 | 50 | Year | 5.6 | 2030 |
Cluj Napoca - Weather by month
Based on the period 1991-2020
January, the coldest month of the year, is generally a very cold month. The average temperature is of -2.2 °C (28 °F), with a minimum of -5.2 °C (22.6 °F) and a maximum of 0.9 °C (33.6 °F).
On the coldest nights of the month, the temperature usually drops to around -15 °C (5 °F). However, it dropped to -19.9 °C (-3.8 °F) in January 2006.
On the warmest days of the month, the temperature usually reaches around 9 °C (48 °F). However, it reached 14.1 °C (57.4 °F) in January 2010.
Precipitation amounts to 25 mm (1 in), distributed over 6 days.
The day lasts on average 9 hours and 0 minutes.
There are on average 2 hours of sunshine per day. So, the sun shines 24% of the time.
The average humidity is 87%. Hence, the air is normally humid.
The average wind speed is 6 kph (4 mph).
February is generally a cold month. The average temperature is of 0.2 °C (32 °F), with a minimum of -3.8 °C (25.2 °F) and a maximum of 4.1 °C (39.4 °F).
On the coldest nights of the month, the temperature usually drops to around -12.5 °C (9 °F). However, it dropped to -21.1 °C (-6 °F) in February 2012.
On the warmest days of the month, the temperature usually reaches around 12.5 °C (54 °F). However, it reached 19.6 °C (67.3 °F) in February 2017.
Precipitation amounts to 25 mm (1 in), distributed over 7 days.
The day lasts on average 10 hours and 20 minutes.
There are on average 3.5 hours of sunshine per day. So, the sun shines 34% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is 7 kph (4 mph).
March is generally a quite cold month. The average temperature is of 5.0 °C (41 °F), with a minimum of -0.1 °C (31.8 °F) and a maximum of 10.2 °C (50.4 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -8 °C (17 °F). However, it dropped to -17.3 °C (0.9 °F) in March 2005.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 19.5 °C (67.5 °F). However, it reached 26.4 °C (79.5 °F) in March 2001.
Precipitation amounts to 35 mm (1.4 in), distributed over 7 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 42% of the time.
The average humidity is 69%.
The average wind speed is 9 kph (5 mph).
April is generally a mild month. The average temperature is of 10.6 °C (51 °F), with a minimum of 4.7 °C (40.5 °F) and a maximum of 16.5 °C (61.7 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -2 °C (28.5 °F). However, it dropped to -7.4 °C (18.7 °F) in April 2020.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 24 °C (75.5 °F). However, it reached 30.1 °C (86.2 °F) in April 2013.
Precipitation amounts to 50 mm (2 in), distributed over 9 days.
The day lasts on average 13 hours and 40 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 65%.
The average wind speed is 9 kph (6 mph).
May is generally a very mild month. The average temperature is of 15.2 °C (59 °F), with a minimum of 9.1 °C (48.4 °F) and a maximum of 21.4 °C (70.5 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 2.5 °C (36.5 °F). However, it dropped to -1.8 °C (28.8 °F) in May 2007.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 28.5 °C (83.5 °F). However, it reached 32.1 °C (89.8 °F) in May 2003.
Precipitation amounts to 70 mm (2.8 in), distributed over 10 days.
The day lasts on average 15 hours and 5 minutes. So the days are long.
There are on average 8 hours of sunshine per day. So, the sun shines 52% of the time.
The average humidity is 69%.
The average wind speed is 8 kph (5 mph).
June is generally a warm month. The average temperature is of 18.8 °C (66 °F), with a minimum of 12.8 °C (55 °F) and a maximum of 24.9 °C (76.8 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 7.5 °C (45.5 °F). However, it dropped to 4 °C (39.2 °F) in June 1997.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 32 °C (89 °F). However, it reached 35.9 °C (96.6 °F) in June 2002.
Precipitation amounts to 90 mm (3.5 in), distributed over 11 days.
The day lasts on average 15 hours and 50 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 8.5 hours of sunshine per day. So, the sun shines 53% of the time.
The average humidity is 70%. Hence, the air is normally humid.
The average wind speed is 8 kph (5 mph).
July, the warmest month of the year, is generally a warm month. The average temperature is of 20.4 °C (69 °F), with a minimum of 14.2 °C (57.6 °F) and a maximum of 26.7 °C (80.1 °F).
On the coldest nights of the month, the temperature usually drops to around 9.5 °C (48.5 °F). However, it dropped to 5.5 °C (41.9 °F) in July 1996.
On the warmest days of the month, the temperature usually reaches around 32.5 °C (91 °F). However, it reached 38 °C (100.4 °F) in July 2007.
Precipitation amounts to 90 mm (3.5 in), distributed over 10 days.
The day lasts on average 15 hours and 25 minutes. So the days are long.
There are on average 9 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 69%.
The average wind speed is 8 kph (5 mph).
August, the warmest month of the year, is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of 20.4 °C (69 °F), with a minimum of 13.9 °C (57 °F) and a maximum of 27 °C (80.6 °F).
On the coldest nights of the month, the temperature usually drops to around 8.5 °C (47 °F). However, it dropped to 5.5 °C (41.9 °F) in August 2001.
On the warmest days of the month, the temperature usually reaches around 33.5 °C (92 °F). However, it reached 38.5 °C (101.3 °F) in August 2012.
Precipitation amounts to 65 mm (2.6 in), distributed over 7 days.
The day lasts on average 14 hours and 5 minutes. So the days are long.
There are on average 8.5 hours of sunshine per day. So, the sun shines 60% of the time.
The average humidity is 68%.
The average wind speed is 7 kph (4 mph).
September is generally a very mild month. The average temperature is of 15.6 °C (60 °F), with a minimum of 9.6 °C (49.3 °F) and a maximum of 21.5 °C (70.7 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 3.5 °C (38.5 °F). However, it dropped to 0.5 °C (32.9 °F) in September 2018.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 28.5 °C (83.5 °F). However, it reached 34.4 °C (93.9 °F) in September 2008.
Precipitation amounts to 55 mm (2.2 in), distributed over 8 days.
The day lasts on average 12 hours and 30 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is 7 kph (4 mph).
October is generally a mild month. The average temperature is of 10.2 °C (50 °F), with a minimum of 4.9 °C (40.8 °F) and a maximum of 15.6 °C (60.1 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -3 °C (26.5 °F). However, it dropped to -8.8 °C (16.2 °F) in October 1997.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 24.5 °C (75.5 °F). However, it reached 31.3 °C (88.3 °F) in October 2012.
Precipitation amounts to 45 mm (1.8 in), distributed over 7 days.
The day lasts on average 10 hours and 50 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is 7 kph (4 mph).
November is generally a quite cold month. The average temperature is of 4.5 °C (40 °F), with a minimum of 0.6 °C (33.1 °F) and a maximum of 8.4 °C (47.1 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -7 °C (20 °F). However, it dropped to -16.8 °C (1.8 °F) in November 1993.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 18 °C (64 °F). However, it reached 23.8 °C (74.8 °F) in November 2018.
Precipitation amounts to 35 mm (1.4 in), distributed over 7 days.
The day lasts on average 9 hours and 25 minutes.
There are on average 3 hours of sunshine per day. So, the sun shines 31% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is 6 kph (4 mph).
December is generally a very cold month. The average temperature is of -0.8 °C (30 °F), with a minimum of -3.6 °C (25.5 °F) and a maximum of 1.9 °C (35.4 °F).
On the coldest nights of the month, the temperature usually drops to around -13.5 °C (7.5 °F). However, it dropped to -21.9 °C (-7.4 °F) in December 2002.
On the warmest days of the month, the temperature usually reaches around 10.5 °C (51.5 °F). However, it reached 14.8 °C (58.6 °F) in December 2004.
Precipitation amounts to 35 mm (1.4 in), distributed over 7 days.
The day lasts on average 8 hours and 35 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 1.5 hours of sunshine per day. So, the sun shines 20% of the time.
The average humidity is 88%. Hence, the air is normally humid.
The average wind speed is 6 kph (4 mph).
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