Climate Ostrovo 2020-2024

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

Calculated from historical METAR data of Gorna Oryahovitsa Airport (LBGO) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	65.8	76	60	80	70	74
February	77.0	87	85	84	68	85
March	79.4	84	82	85	80	72
April	90.7		89	91	86	97
May	90.1		90	95	90	92
June	91.3		92	96	91	94
July	95.4		98	100	99	100
August	97.3		98	98	99	99
September	96.2		95	94	99	99
October	86.3		99	97	70	82
November	63.6		85	68	70	50
December	58.3		73	45	59	37
Average	84.3	82.6	88.2	89.0	83.8	84.6

4th 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	79.7	84	80	90	82	88
February	88.6	96	96	94	75	96
March	92.5	95	98	98	95	90
April	97.9		98	100	97	99
May	97.0		97	98	98	99
June	97.0		98	99	97	98
July	98.7		99	100	100	100
August	99.1		99	100	100	99
September	99.0		99	98	100	100
October	95.0		100	99	90	94
November	78.5		91	79	83	74
December	75.3		86	70	70	63
Average	92.7	91.6	95.8	95.5	92.0	93.1

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	6.2	7	10	7	7	8
February	10.5	15	10	11	11	13
March	13.6	16	15	10	11	14
April	18.7		17	18	16	19
May	23.6		22	25	24	23
June	27.5		27	28	26	26
July	30.4		33	32	32	31
August	31.8		33	32	32	33
September	27.2		29	26	26	29
October	21.1		26	21	16	22
November	13.3		15	15	14	11
December	8.1		11	7	8	8
Average	18.5	12.6	20.6	19.9	18.6	19.6

5th 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	-5.8	-4	1	-4	-2	-5
February	-2.3	1	-2	-2	-2	-1
March	0.7	3	2	-3	-2	2
April	4.5		5	5	3	2
May	9.9		10	8	10	11
June	14.5		14	14	14	14
July	16.1		17	15	16	15
August	15.2		16	16	15	16
September	10.7		12	11	10	11
October	5.5		7	4	4	8
November	2.7		2	4	3	1
December	-1.0		-1	1	-1	2
Average	5.3	0.2	6.9	5.8	5.8	6.2

2nd 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	16.6	16	21	11	24	6
February	12.3	9	11	11	8	13
March	15.6	14	9	14	26	20
April	10.3		16	13	12	5
May	7.3		13	5	7	7
June	6.9		6	7	10	7
July	4.0		4	1	0	1
August	2.7		6	5	2	3
September	3.2		4	5	1	3
October	7.5		0	3	18	8
November	13.2		14	14	11	7
December	14.1		12	9	19	17
Average	9.4	12.9	9.2	7.6	10.6	7.5

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	5.7	6	6	8	6	5
February	6.7	6	10	7	6	8
March	6.8	7	8	7	6	7
April	6.4		6	7	6	6
May	6.0		6	5	7	7
June	5.1		5	6	5	6
July	5.7		6	6	6	6
August	5.1		6	5	5	6
September	5.7		5	7	6	6
October	5.2		6	5	5	5
November	5.1		8	4	6	3
December	5.6		6	4	7	5
Average	5.8	6.2	6.2	6.0	5.9	5.8

5th 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	284°	168°	287°	287°	303°
February	273°	279°	306°	298°	293°
March	300°	280°	332°	312°	326°
April		304°	298°	309°	357°
May		090°	348°	301°	294°
June		057°	335°	324°	289°
July		283°	330°	012°	328°
August		104°	322°	035°	044°
September		051°	283°	321°	028°
October		282°	293°	063°	275°
November		272°	295°	273°	313°
December		281°	290°	282°	128°

Prevailing wind direction

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