, with cold winters and warm summers.
The city is located in the far west of Bulgaria, a short distance from the border with Serbia and Northern Macedonia, and at 560 meters (1,840 feet) above sea level. The climate is not very different from that of Sofia, given that the city is not far away and at the same altitude, although it is a bit milder because it is surrounded by high mountains from which warm, foehn-like winds can descend.
is cold and gray, with snowfalls and frosts, although there are also some quite mild periods. Sometimes fog can form.
During cold spells, which occur every year or so, the temperature drops to -15 °C (5 °F) or below. The coldest record is -24.5 °C (-12 °F), recorded in January 1985.
is hot and sunny, although thunderstorms can sometimes break out in the afternoon. The temperature range is high, so it can be cool, or even a little cold, at night, while during the day it can be very hot. The highest record is 42.5 °C (108.5 °F), recorded in July 2007.
to visit Kyustendil is from mid-May to late September, keeping in mind that it can sometimes be hot in July and August, and more rarely in the second half of June, so those who don't like the heat can avoid these periods. You should also take into account some afternoon thunderstorms, in addition, it's better to bring a sweatshirt for the evening, and maybe even a jacket if you go in May or September.
. Here are the average temperatures.
January, the coldest month of the year, is generally a cold month. The average temperature is of
0.2 °C, with a minimum of
-4.7 °C and a maximum of
5 °C.

On the coldest nights of the month, the temperature usually drops to around
-14 °C. However, it dropped to
-20.1 °C in January 2012.

On the warmest days of the month, the temperature usually reaches around
13.5 °C. However, it reached
18.5 °C in January 2007.

Precipitation amounts to
35 mm, distributed over 6 days.
The day lasts on average 9 hours and 30 minutes.

There are on average 3 hours of sunshine per day. So, the sun shines 29% of the time.
The average humidity is 79%. Hence, the air is normally humid.
February is generally a cold month. The average temperature is of
2 °C, with a minimum of
-3.8 °C and a maximum of
7.8 °C.

On the coldest nights of the month, the temperature usually drops to around
-13 °C. However, it dropped to
-21.4 °C in February 2006.

On the warmest days of the month, the temperature usually reaches around
17 °C. However, it reached
22 °C in February 2008.

Precipitation amounts to
40 mm, distributed over 6 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 37% of the time.
The average humidity is 77%. Hence, the air is normally humid.
March is generally a quite cold month. However, there are remarkable differences between night and day. The average temperature is of
6.5 °C, with a minimum of
0 °C and a maximum of
13.1 °C.

On the coldest nights of the month, the temperature usually drops to around
-7 °C. However, it dropped to
-11 °C in March 2005.

On the warmest days of the month, the temperature usually reaches around
22.5 °C. However, it reached
27.2 °C in March 2001.

Precipitation amounts to
45 mm, distributed over 6 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 71%. Hence, the air is normally humid.
April is generally a mild month. However, there are remarkable differences between night and day. The average temperature is of
11.2 °C, with a minimum of
4.4 °C and a maximum of
18 °C.

On the coldest nights of the month, the temperature usually drops to around
-3 °C. However, it dropped to
-9.6 °C in April 2003.

On the warmest days of the month, the temperature usually reaches around
25.5 °C. However, it reached
30.5 °C in April 2013.

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

There are on average 6 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 65%.
May is generally a very mild month. However, there are remarkable differences between night and day. The average temperature is of
16 °C, with a minimum of
8.8 °C and a maximum of
23.2 °C.

On the coldest nights of the month, the temperature usually drops to around
3 °C. However, it dropped to
-0.5 °C in May 2004.

On the warmest days of the month, the temperature usually reaches around
30 °C. However, it reached
36.5 °C in May 2012.

Precipitation amounts to
60 mm, distributed over 9 days.
The day lasts on average 14 hours and 35 minutes. So the days are long.

There are on average 7.5 hours of sunshine per day. So, the sun shines 50% 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
19.7 °C, with a minimum of
12.1 °C and a maximum of
27.2 °C.

On the coldest nights of the month, the temperature usually drops to around
6 °C. However, it dropped to
0 °C in June 1992.

On the warmest days of the month, the temperature usually reaches around
34 °C. However, it reached
38.2 °C in June 2007.

Precipitation amounts to
70 mm, distributed over 8 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 9 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 67%.
July is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of
22 °C, with a minimum of
13.9 °C and a maximum of
30 °C.

On the coldest nights of the month, the temperature usually drops to around
8.5 °C. However, it dropped to
4.5 °C in July 1993.

On the warmest days of the month, the temperature usually reaches around
36.5 °C. However, it reached
42.4 °C in July 2007.

Precipitation amounts to
60 mm, distributed over 6 days.
The day lasts on average 14 hours and 55 minutes. So the days are long.

There are on average 10 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 63%.
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
22.1 °C, with a minimum of
13.7 °C and a maximum of
30.4 °C.

On the coldest nights of the month, the temperature usually drops to around
8.5 °C. However, it dropped to
5.5 °C in August 1995.

On the warmest days of the month, the temperature usually reaches around
36.5 °C. However, it reached
40.1 °C in August 2012.

Precipitation amounts to
45 mm, distributed over 6 days.
The day lasts on average 13 hours and 50 minutes.

There are on average 9.5 hours of sunshine per day. So, the sun shines 69% of the time.
The average humidity is 62%.
September is generally a very mild month. However, there are remarkable differences between night and day. The average temperature is of
17.2 °C, with a minimum of
9.4 °C and a maximum of
25.1 °C.

On the coldest nights of the month, the temperature usually drops to around
3 °C. However, it dropped to
0.1 °C in September 2012.

On the warmest days of the month, the temperature usually reaches around
32 °C. However, it reached
36.5 °C in September 1994.

Precipitation amounts to
45 mm, distributed over 6 days.
The day lasts on average 12 hours and 25 minutes.

There are on average 7 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 64%.
October is generally a mild month. However, there are remarkable differences between night and day. The average temperature is of
12.4 °C, with a minimum of
5.4 °C and a maximum of
19.4 °C.

On the coldest nights of the month, the temperature usually drops to around
-3 °C. However, it dropped to
-6.4 °C in October 2011.

On the warmest days of the month, the temperature usually reaches around
28 °C. However, it reached
33 °C in October 1993.

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

There are on average 5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 71%. Hence, the air is normally humid.
November is generally a quite cold month. The average temperature is of
6.2 °C, with a minimum of
0.4 °C and a maximum of
12 °C.

On the coldest nights of the month, the temperature usually drops to around
-7.5 °C. However, it dropped to
-12.5 °C in November 1995.

On the warmest days of the month, the temperature usually reaches around
21.5 °C. However, it reached
26.7 °C in November 2008.

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

There are on average 3.5 hours of sunshine per day. So, the sun shines 34% of the time.
The average humidity is 78%. Hence, the air is normally humid.
December is generally a cold month. The average temperature is of
1.1 °C, with a minimum of
-3.2 °C and a maximum of
5.5 °C.

On the coldest nights of the month, the temperature usually drops to around
-13 °C. However, it dropped to
-21.5 °C in December 2001.

On the warmest days of the month, the temperature usually reaches around
15 °C. However, it reached
20.8 °C in December 2010.

Precipitation amounts to
55 mm, distributed over 8 days.
The day lasts on average 9 hours and 5 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.

There are on average 2 hours of sunshine per day. So, the sun shines 23% of the time.
The average humidity is 81%. Hence, the air is normally humid.