Climate Stara Zagora Airport 2020-2024

Climate and trends: average temperature, flight conditions, precipitation, wind speed and direction.

Calculated from historical METAR data of Bezmer (LBIA) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	64.2	72	46	79	73	78
February	70.1	56	84	77	58	91
March	74.0	63	74	90	72	74
April	88.3		85	91	87	89
May	93.6		79	93	99	94
June	94.8		97	95	96	95
July	98.3		98	100	99	99
August	98.7		97	100	96	100
September	97.7		99	98	98	97
October	83.8		96	94	71	88
November	60.3		73	66	54	82
December	58.1		56	39	75	49
Average	79.3	63.6	83.6	88.5	83.7	87.8

5th best VFR conditions of Bulgaria

VFR conditions during daylight period

Percentage of observations where the VFR minimums for ceiling and visibility are met: visibility of 8 km or more and a ceiling of 3,000 ft or more. Only observations between sunrise and sunset are taken into account.

Marginal VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	79.1	80	81	89	84	84
February	83.2	68	92	89	71	94
March	87.2	85	87	99	90	90
April	94.4		92	99	93	95
May	97.8		93	99	100	99
June	97.8		99	98	97	98
July	99.2		99	100	99	100
August	99.4		98	100	99	100
September	99.1		100	99	99	99
October	91.4		97	95	93	92
November	78.8		86	82	70	93
December	73.8		68	65	89	77
Average	87.9	77.9	91.7	94.7	91.8	94.3

Marginal VFR conditions or better during daylight period

Percentage of observations where the MVFR minimums for ceiling and visibility are met: visibility of 5 km or more and a ceiling of 1,000 ft or more. Only observations between sunrise and sunset are taken into account.

Maximum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	8.0	8	10	8	8	8
February	11.0	15	11	11	11	12
March	13.5	15	14	10	11	15
April	18.4		17	19	16	19
May	24.0		19	25	24	24
June	28.3		28	28	27	28
July	31.6		34	32	32	31
August	32.6		34	33	33	32
September	27.6		29	27	26	30
October	21.6		25	22	17	23
November	14.7		16	16	14	14
December	9.5		11	13	9	10
Average	17.7	12.4	20.5	20.4	18.9	20.4

1st highest temperature of Bulgaria

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	-1.0	-2	3	-3	0	-4
February	0.1	3	-1	-1	1	-1
March	1.6	5	2	-2	0	3
April	5.4		6	5	5	4
May	10.5		7	9	11	10
June	15.2		15	15	15	15
July	17.3		18	17	18	17
August	17.5		18	18	18	18
September	13.3		15	12	13	14
October	8.5		9	8	7	10
November	5.1		6	5	5	2
December	1.0		1	4	1	4
Average	6.1	1.8	8.2	7.5	7.7	7.7

5th lowest temperature of Bulgaria

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	10.8	13	17	7	20	1
February	7.7	3	2	10	6	7
March	8.3	8	4	4	13	10
April	6.5		10	11	3	5
May	3.4		1	4	4	4
June	2.7		4	4	6	1
July	1.0		1	0	0	0
August	0.3		1	0	1	1
September	1.2		2	0	0	1
October	3.7		0	0	10	4
November	9.8		9	13	7	8
December	11.4		9	20	17	16
Average	6.2	7.7	4.8	5.1	6.5	4.2

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (knots)

Month	Average	2024	2023	2022	2021	2020
January	6.3	6	7	8	6	6
February	7.1	7	9	7	6	8
March	7.3	7	7	9	8	8
April	6.9		7	8	6	8
May	6.9		8	6	7	7
June	6.3		6	7	6	7
July	6.2		6	7	7	7
August	7.4		9	7	6	8
September	7.0		8	7	7	8
October	5.6		6	7	7	5
November	5.8		7	6	6	5
December	5.5		5	5	7	7
Average	6.3	6.5	7.1	7.0	6.5	6.9

1st highest wind speed of Bulgaria

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2024	2023	2022	2021	2020
January	320°	166°	298°	278°	308°
February	251°	301°	343°	283°	286°
March	081°	310°	025°	008°	062°
April		091°	018°	070°	062°
May		070°	070°	353°	292°
June		050°	022°	311°	291°
July		351°	044°	042°	048°
August		064°	032°	065°	058°
September		055°	308°	036°	062°
October		234°	022°	055°	222°
November		272°	109°	333°	016°
December		295°	090°	263°	112°

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.