Climate Hydrobase de l'Eau d'Heure 2020-2024

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

Calculated from historical METAR data of Florennes Air Base (EBFS) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	33.4	40	23	30	23	32
February	53.9	32	49	56	62	48
March	65.9	62	53	83	72	65
April	75.7		57	73	81	88
May	79.3		68	82	81	93
June	82.3		87	84	72	85
July	83.8		78	91	73	75
August	80.9		70	86	69	91
September	77.1		77	76	76	81
October	63.0		66	74	65	51
November	47.0		31	51	47	61
December	28.5		26	31	20	29
Average	65.8	45.7	60.2	72.1	65.7	71.0

11th best VFR conditions of Belgium

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	58.1	63	53	55	39	58
February	76.9	58	72	75	79	87
March	85.7	84	84	95	90	81
April	89.0		79	86	90	94
May	89.3		81	91	93	97
June	91.0		92	93	80	93
July	91.8		87	97	81	90
August	90.3		84	93	84	96
September	88.1		86	87	90	92
October	83.9		85	86	85	87
November	71.3		72	71	61	81
December	56.7		60	46	43	60
Average	82.0	69.3	79.4	84.4	79.4	86.8

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	4.4	5	5	5	3	6
February	7.3	9	7	8	7	8
March	10.0	11	9	11	10	9
April	13.3		11	13	10	17
May	17.0		17	18	14	18
June	21.7		24	21	22	20
July	22.3		22	24	19	21
August	22.7		21	26	19	25
September	19.3		23	18	20	21
October	14.5		16	16	14	12
November	8.5		9	9	7	11
December	5.9		7	2	6	6
Average	13.2	8.1	14.2	14.6	12.6	14.5

11th highest temperature of Belgium

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	0.5	0	2	1	0	2
February	1.8	5	2	3	1	3
March	3.0	5	3	2	2	3
April	4.3		4	4	2	6
May	7.7		8	8	6	7
June	12.3		14	12	12	12
July	13.0		13	13	11	12
August	13.6		13	15	13	15
September	10.8		13	10	11	11
October	8.3		10	9	7	8
November	3.6		5	4	2	5
December	2.1		4	-2	3	3
Average	6.3	3.2	7.6	6.7	5.8	7.1

2nd lowest temperature of Belgium

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	19.3	22	21	16	30	17
February	16.6	28	10	27	12	19
March	15.2	17	26	4	8	19
April	8.8		17	13	6	2
May	6.3		8	4	11	3
June	6.1		4	9	7	8
July	6.9		16	0	13	9
August	7.1		14	4	11	5
September	8.6		10	11	3	8
October	13.7		15	12	14	19
November	17.6		27	13	13	12
December	23.2		32	8	24	26
Average	12.3	22.0	15.7	9.3	11.6	10.8

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	9.4	10	11	8	9	10
February	10.7	11	9	13	10	15
March	9.8	9	12	8	9	11
April	8.0		9	9	8	8
May	7.2		8	7	10	7
June	6.7		7	6	6	7
July	7.1		10	6	7	8
August	6.4		8	6	8	8
September	6.5		7	7	6	7
October	8.7		9	8	9	10
November	8.6		12	9	7	8
December	9.6		12	6	9	9
Average	8.2	10.0	9.1	7.6	7.8	8.6

11th highest wind speed of Belgium

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	235°	229°	242°	236°	205°
February	213°	273°	233°	165°	224°
March	210°	234°	087°	264°	175°
April		312°	020°	360°	068°
May		006°	271°	227°	013°
June		024°	259°	326°	231°
July		233°	310°	254°	255°
August		250°	012°	264°	226°
September		193°	251°	180°	255°
October		210°	204°	206°	208°
November		222°	199°	243°	197°
December		226°	055°	213°	197°

Prevailing wind direction

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