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Sliven Weather Averages

Climate averages for Sliven based on 10 years of historical data.

Annual avg temp
12.9°C
Annual avg high
18.0°C
Annual avg low
8.4°C
Record high
39°C
Record low
-17°C
Annual rainfall
655 mm
Rainy days
94
Sunshine
4.9h/day
Luftfuktighet
68%

Average Sliven temperatures by month

Avg high

J
F
12°
M
17°
A
21°
M
26°
J
30°
J
31°
A
26°
S
19°
O
13°
N
D

Avg low

-1°
J
F
M
A
11°
M
15°
J
18°
J
18°
A
14°
S
O
N
D

Average rainfall in Sliven by month

Rainfall (mm)

74
J
53
F
61
M
63
A
59
M
59
J
27
J
22
A
27
S
53
O
82
N
75
D

Sunshine hours in Sliven by month

Sunshine (h/day)

3
J
4
F
3
M
5
A
4
M
5
J
7
J
8
A
6
S
6
O
4
N
3
D

Humidity in Sliven by month

Average humidity

79%
J
76%
F
74%
M
71%
A
74%
M
67%
J
53%
J
48%
A
55%
S
64%
O
74%
N
78%
D

Month-by-month averages

Month Avg High Avg Low Rainfall Sunshine
Vær i januar 5°C -1°C 74 mm 3.2h
Vær i februar 9°C 1°C 53 mm 3.7h
Vær i mars 12°C 3°C 61 mm 3.3h
Vær i april 17°C 6°C 63 mm 4.7h
Vær i mai 21°C 11°C 59 mm 4.3h
Vær i juni 26°C 15°C 59 mm 4.8h
Vær i juli 30°C 18°C 27 mm 7.1h
Vær i august 31°C 18°C 22 mm 7.9h
Vær i september 26°C 14°C 27 mm 6.4h
Vær i oktober 19°C 9°C 53 mm 5.5h
Vær i november 13°C 5°C 82 mm 4.0h
Vær i desember 8°C 1°C 75 mm 3.3h