The city is located in southern Bulgaria, at an altitude of 240 meters or 785 feet (but the weather station is at 330 meters or 1,080 feet).
We are in an area subject to clashes between Mediterranean and Balkan air masses, which can give rise to strong winds.
, there are some mild periods, with highs of 15 °C (59 °F) and more. However, there can also be cold periods, characterized by snowfalls, and even cold waves, during which the temperature can drop to as low as -15 °C (5 °F). The coldest record is -21 °C (-6 °F), recorded in January 1963.
Nights are usually quite cool, but during the day it can get very hot, with highs of 37 °C (98.5 °F) or more. The record is 43 °C (109.5 °F), recorded in July 2007. Previously, the temperature had risen to 42 °C (107.5 °F) in August 1994 and 42.5 °C (108.5 °F) in July 2000.
to visit Kardzhali are spring and autumn, namely from mid-May to mid-June, a period when some afternoon thunderstorms must be put into account, and from mid-September to mid-October, a period a bit cooler but also drier. In summer, the heat is sometimes bearable, while at other times, especially in July and August, it can be intense.
. Here are the average temperatures.
January, the coldest month of the year, is generally a cold month. The average temperature is of
2.3 °C, with a minimum of
-2.3 °C and a maximum of
6.9 °C.

On the coldest nights of the month, the temperature usually drops to around
-11 °C. However, it dropped to
-17 °C in January 2010.

On the warmest days of the month, the temperature usually reaches around
16 °C. However, it reached
20.6 °C in January 2002.

Precipitation amounts to
60 mm, distributed over 7 days.
The day lasts on average 9 hours and 35 minutes.

There are on average 3 hours of sunshine per day. So, the sun shines 29% of the time.
The average humidity is 77%. Hence, the air is normally humid.
February is generally a quite cold month. The average temperature is of
4 °C, with a minimum of
-1.1 °C and a maximum of
9 °C.

On the coldest nights of the month, the temperature usually drops to around
-9.5 °C. However, it dropped to
-17.2 °C in February 2006.

On the warmest days of the month, the temperature usually reaches around
18.5 °C. However, it reached
22.7 °C in February 2016.

Precipitation amounts to
65 mm, distributed over 7 days.
The day lasts on average 10 hours and 35 minutes.

There are on average 4 hours of sunshine per day. So, the sun shines 38% of the time.
The average humidity is 75%. Hence, the air is normally humid.
March is generally a quite mild month. The average temperature is of
7.2 °C, with a minimum of
1.8 °C and a maximum of
12.7 °C.

On the coldest nights of the month, the temperature usually drops to around
-5 °C. However, it dropped to
-11.6 °C in March 2018.

On the warmest days of the month, the temperature usually reaches around
22 °C. However, it reached
26.9 °C in March 2001.

Precipitation amounts to
60 mm, distributed over 7 days.
The day lasts on average 12 hours and 0 minutes.

There are on average 5.5 hours of sunshine per day. So, the sun shines 44% of the time.
The average humidity is 72%. Hence, the air is normally humid.
April is generally a mild month. The average temperature is of
12 °C, with a minimum of
5.8 °C and a maximum of
18.2 °C.

On the coldest nights of the month, the temperature usually drops to around
-0.5 °C. However, it dropped to
-8.2 °C in April 2003.

On the warmest days of the month, the temperature usually reaches around
25.5 °C. However, it reached
30.6 °C in April 2016.

Precipitation amounts to
50 mm, distributed over 7 days.
The day lasts on average 13 hours and 25 minutes.

There are on average 6.5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 69%.
May is generally a very mild month. The average temperature is of
16.7 °C, with a minimum of
10.3 °C and a maximum of
23.1 °C.

On the coldest nights of the month, the temperature usually drops to around
5 °C. However, it dropped to
0.7 °C in May 2000.

On the warmest days of the month, the temperature usually reaches around
29.5 °C. However, it reached
33.5 °C in May 2003.

Precipitation amounts to
65 mm, distributed over 8 days.
The day lasts on average 14 hours and 35 minutes. So the days are long.

There are on average 8.5 hours of sunshine per day. So, the sun shines 57% of the time.
The average humidity is 67%.
June is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of
20.8 °C, with a minimum of
14 °C and a maximum of
27.7 °C.

On the coldest nights of the month, the temperature usually drops to around
8.5 °C. However, it dropped to
4.6 °C in June 1997.

On the warmest days of the month, the temperature usually reaches around
34 °C. However, it reached
38.2 °C in June 2017.

Precipitation amounts to
55 mm, distributed over 7 days.
The day lasts on average 15 hours and 10 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 10 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 61%.
July is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of
23.4 °C, with a minimum of
16 °C and a maximum of
30.8 °C.

On the coldest nights of the month, the temperature usually drops to around
11.5 °C. However, it dropped to
5.8 °C in July 1998.

On the warmest days of the month, the temperature usually reaches around
36.5 °C. However, it reached
43.2 °C in July 2007.

Precipitation amounts to
35 mm, distributed over 5 days.
The day lasts on average 14 hours and 50 minutes. So the days are long.

There are on average 10.5 hours of sunshine per day. So, the sun shines 71% of the time.
The average humidity is 56%.
August, the warmest month of the year, is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of
23.5 °C, with a minimum of
15.9 °C and a maximum of
31 °C.

On the coldest nights of the month, the temperature usually drops to around
11.5 °C. However, it dropped to
8.6 °C in August 1993.

On the warmest days of the month, the temperature usually reaches around
36.5 °C. However, it reached
42 °C in August 1994.

Precipitation amounts to
25 mm, distributed over 3 days.
The day lasts on average 13 hours and 50 minutes.

There are on average 10 hours of sunshine per day. So, the sun shines 72% of the time.
The average humidity is 55%.
September is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of
18.9 °C, with a minimum of
11.8 °C and a maximum of
25.9 °C.

On the coldest nights of the month, the temperature usually drops to around
6 °C. However, it dropped to
1.6 °C in September 2018.

On the warmest days of the month, the temperature usually reaches around
33 °C. However, it reached
37.6 °C in September 2015.

Precipitation amounts to
50 mm, distributed over 5 days.
The day lasts on average 12 hours and 25 minutes.

There are on average 7.5 hours of sunshine per day. So, the sun shines 62% of the time.
The average humidity is 61%.
October is generally a mild month. The average temperature is of
13.5 °C, with a minimum of
7.7 °C and a maximum of
19.4 °C.

On the coldest nights of the month, the temperature usually drops to around
0 °C. However, it dropped to
-3.4 °C in October 2010.

On the warmest days of the month, the temperature usually reaches around
28 °C. However, it reached
36.1 °C in October 1991.

Precipitation amounts to
60 mm, distributed over 6 days.
The day lasts on average 11 hours and 0 minutes.

There are on average 5.5 hours of sunshine per day. So, the sun shines 48% of the time.
The average humidity is 69%.
November is generally a quite mild month. The average temperature is of
8.3 °C, with a minimum of
3.3 °C and a maximum of
13.4 °C.

On the coldest nights of the month, the temperature usually drops to around
-4.5 °C. However, it dropped to
-9.5 °C in November 1993.

On the warmest days of the month, the temperature usually reaches around
22 °C. However, it reached
26.1 °C in November 1992.

Precipitation amounts to
60 mm, distributed over 6 days.
The day lasts on average 9 hours and 50 minutes.

There are on average 4 hours of sunshine per day. So, the sun shines 38% of the time.
The average humidity is 77%. Hence, the air is normally humid.
December is generally a cold month. The average temperature is of
3.6 °C, with a minimum of
-0.8 °C and a maximum of
7.9 °C.

On the coldest nights of the month, the temperature usually drops to around
-9.5 °C. However, it dropped to
-16.2 °C in December 1997.

On the warmest days of the month, the temperature usually reaches around
16.5 °C. However, it reached
21.6 °C in December 2010.

Precipitation amounts to
80 mm, distributed over 8 days.
The day lasts on average 9 hours and 10 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.

There are on average 2.5 hours of sunshine per day. So, the sun shines 27% of the time.
The average humidity is 79%. Hence, the air is normally humid.