Climate Istres Le Tubé Air Base 2020-2024

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

Calculated from historical METAR data of Istres Le Tubé Air Base (LFMI) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	88.3	85	81	88	86	89
February	85.8	82	83	89	89	85
March	90.1	82	86	100	90	94
April	91.1		92	93	90	87
May	91.8		91	94	91	94
June	93.5		96	93	96	88
July	95.8		94	99	93	95
August	92.8		89	96	87	97
September	92.5		92	91	90	96
October	86.2		86	94	86	86
November	89.1		86	88	92	88
December	87.9		91	72	88	81
Average	90.0	82.8	89.4	92.6	90.1	90.5

11th best VFR conditions of France

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	95.4	96	89	94	94	97
February	94.6	90	91	96	97	97
March	97.5	94	98	100	95	99
April	97.2		95	99	96	95
May	96.5		93	95	95	98
June	97.2		99	97	98	93
July	97.4		96	99	96	97
August	95.4		91	98	92	98
September	96.6		97	96	96	98
October	95.0		94	99	93	99
November	97.6		94	98	99	99
December	96.8		96	94	95	97
Average	96.2	93.1	94.5	97.1	95.4	97.0

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	11.7	13	12	12	10	14
February	14.4	16	13	15	15	16
March	16.9	17	17	17	16	17
April	19.6		21	20	18	20
May	23.5		24	26	22	25
June	29.0		30	31	29	27
July	32.0		32	34	31	31
August	31.3		31	32	30	31
September	27.0		29	26	27	27
October	22.2		24	24	21	20
November	15.8		16	18	15	18
December	12.6		14	11	13	12
Average	20.6	15.2	21.9	22.4	20.6	21.3

7th highest temperature of France

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	3.5	4	4	3	3	5
February	5.0	7	4	5	6	5
March	6.7	9	7	6	6	7
April	9.0		10	9	7	9
May	13.1		14	15	11	14
June	18.1		18	20	19	16
July	20.7		22	22	20	20
August	19.9		20	22	19	20
September	16.2		18	17	17	16
October	12.9		15	15	11	10
November	7.8		8	9	7	9
December	4.4		6	5	3	5
Average	10.8	6.5	12.0	12.5	10.7	11.3

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	5.4	8	2	0	7	8
February	7.4	7	5	4	6	8
March	5.0	13	1	7	2	4
April	9.6		3	8	9	14
May	5.8		9	1	7	6
June	2.5		1	0	6	3
July	0.7		0	0	2	0
August	1.4		2	1	2	2
September	4.1		5	2	8	4
October	6.1		2	3	7	6
November	9.7		8	11	11	9
December	9.3		5	15	9	14
Average	5.6	9.2	3.4	3.6	5.9	5.9

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	12.6	11	13	12	13	9
February	11.6	12	11	15	9	12
March	11.5	13	11	9	12	11
April	11.4		12	11	11	8
May	10.8		11	10	11	10
June	10.6		10	11	11	12
July	11.1		11	11	12	11
August	11.0		12	11	11	12
September	10.1		9	12	8	10
October	10.8		10	8	12	13
November	10.8		11	11	11	9
December	10.3		11	10	10	11
Average	11.1	11.8	11.1	11.0	10.8	10.7

7th highest wind speed of France

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	345°	340°	348°	334°	025°
February	333°	357°	329°	099°	326°
March	160°	309°	127°	338°	317°
April		323°	303°	347°	201°
May		338°	301°	294°	305°
June		317°	243°	229°	306°
July		290°	316°	307°	310°
August		304°	326°	321°	308°
September		174°	325°	305°	311°
October		144°	150°	011°	340°
November		335°	357°	348°	033°
December		335°	017°	343°	351°

Prevailing wind direction

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