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Climate Lab — Sliven, Bulgaria

Climate Lab·

Monthly climate metrics across temperature, precipitation, wind, and UV.

MetricJanFebMarAprMayJunJulAugSepOctNovDecYear
Temperature
Daily high°C
9
13
15
19
23
27
31
31
27
21
14
9
20
Daily mean°C
2
5
8
11
16
21
25
26
20
15
8
4
13
Daily low°C
-4
-2
1
4
10
15
18
18
13
8
2
0
7
Thermal comfort
High feels°C
10
15
17
22
27
30
34
34
30
25
17
11
23
Mean feels°C
-2
2
6
12
18
25
28
28
22
15
7
1
13
Low feels°C
-11
-10
-6
0
9
16
19
18
11
5
-3
-7
3
Humidity
Humidity%
79
74
73
66
66
66
53
54
59
65
82
90
69
Dewpoint°C
-2.1
0.4
2.5
5.3
9.9
15.0
14.8
15.1
12.2
6.8
5.1
2.2
7.3
Precipitation
Rainfallmm
45
22
49
76
114
113
44
43
38
19
44
98
703
Rain days≥1mm
7
6
9
13
15
14
9
8
5
5
10
10
111
Snowfallmm
9
11
12
0
0
0
0
0
0
0
8
10
49
Snow days≥1mm
3
3
3
0
0
0
0
0
0
0
1
2
12
Wind
Wind avgm/s
2.3
2.1
2.4
2.5
2.3
1.9
2.3
2.3
2.3
1.9
1.9
1.9
2.2
Wind gustsm/s
5.6
5.9
5.6
4.9
4.6
4.2
4.3
5.0
4.9
4.3
4.2
4.5
4.8
Sun & UV
Sunshinehrs/day
5.9
7.1
8.6
10.3
10.6
11.6
11.8
11.1
9.5
8.4
6.0
4.6
8.8
Clear skyindex
33%
49%
40%
46%
43%
50%
71%
71%
53%
57%
39%
33%
49%
UV indexmax avg
1.2
2.2
3.0
4.6
5.7
6.8
7.9
6.9
4.8
3.2
1.5
0.9
4.1
Based on 2014–2024 hourly climate data · Updated Mar 2025
Confidence: High

How winter feel compares

Compared across Bulgaria

Sliven: -7.6 °C. Typical range in Bulgaria: -8.0–-6.2 °C. Low anchor: Varna, -10.8 °C. High anchor: Sandanski, -3.9 °C.

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