Climate Syros Airport 2020-2024

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

Calculated from historical METAR data of Syros Airport (LGSO) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	60.9	69	66	63	66	42
February	66.8	82	67	71	82	41
March	67.6	85	57	67	74	46
April	58.0		55	64	74	35
May	66.1		54	74	64	52
June	72.4		60	73	92	52
July	72.6		63	82	89	67
August	72.7		65	80	87	98
September	73.9		64	88	82	80
October	69.3		65	78	84	64
November	67.0		68	70	84	67
December	58.2		66	69	65	71
Average	69.2	78.9	61.9	73.7	78.9	58.6

32nd best VFR conditions of Greece

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	74.4	81	71	86	75	58
February	78.6	90	80	89	93	51
March	74.2	87	62	87	85	49
April	60.1		57	66	78	38
May	66.4		54	74	64	52
June	72.6		60	73	92	52
July	72.7		64	82	89	67
August	72.9		65	82	87	98
September	74.3		65	89	82	81
October	70.1		66	79	85	64
November	73.4		72	75	97	78
December	69.7		76	74	85	78
Average	73.7	85.9	65.0	79.3	84.1	62.5

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	13.5	15	16	13	15	13
February	14.5	16	13	15	15	15
March	16.0	18	16	13	15	16
April	18.9		19	20	19	18
May	23.3		22	23	25	24
June	27.5		27	28	28	27
July	29.9		32	29	31	29
August	29.4		30	30	32	30
September	26.8		27	27	27	28
October	22.6		24	22	21	25
November	19.3		22	19	19	18
December	15.9		18	18	15	17
Average	20.8	16.2	22.1	21.4	21.8	21.5

25th highest temperature of Greece

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	9.8	11	12	8	12	9
February	10.5	12	9	9	11	10
March	11.4	13	12	8	10	12
April	13.7		13	14	14	13
May	17.6		17	17	18	18
June	21.8		21	22	22	20
July	24.2		26	23	24	24
August	24.5		25	24	25	26
September	21.8		23	22	21	23
October	18.2		19	18	17	19
November	15.1		17	16	14	15
December	12.2		14	14	11	14
Average	16.2	12.1	17.2	16.3	16.5	16.8

25th lowest temperature of Greece

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	14.9	7	23	12	8	36
February	14.5	3	21	12	4	32
March	13.5	3	29	9	8	35
April	15.4		18	14	9	50
May	9.8		28	11	6	12
June	2.7		11	3	1	0
July	1.1		0	1	4	1
August	2.2		0	1	5	0
September	4.1		2	2	6	1
October	7.4		1	15	7	2
November	6.2		3	15	1	1
December	14.2		4	10	14	12
Average	8.1	4.2	11.4	8.4	5.9	15.2

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	13.4	15	11	14	14	16
February	13.5	13	14	13	14	13
March	12.4	10	12	14	13	13
April	10.2		10	10	11	12
May	9.0		10	9	8	9
June	9.5		9	12	8	9
July	12.5		11	15	13	14
August	12.5		10	11	11	13
September	12.0		13	11	13	13
October	11.7		10	14	14	9
November	12.2		12	12	13	15
December	12.1		10	11	13	13
Average	11.8	12.5	11.0	12.2	11.8	12.2

25th highest wind speed of Greece

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	321°	317°	353°	233°	348°
February	010°	015°	325°	355°	321°
March	315°	314°	007°	335°	012°
April		271°	001°	360°	355°
May		012°	008°	358°	345°
June		003°	357°	010°	358°
July		005°	359°	355°	357°
August		001°	360°	360°	356°
September		006°	356°	357°	358°
October		360°	001°	355°	346°
November		233°	342°	352°	360°
December		291°	204°	272°	304°

Prevailing wind direction

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