Climate Alldays Airport 2020-2024

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

Calculated from historical METAR data of Lanseria International Airport (FALA) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	83.1	89	88	80	74	85
February	79.2	86	66	91	73	85
March	84.9	87	84	84	83	84
April	83.2		93	74	93	78
May	93.2		80	91	97	98
June	93.1		93	91	93	93
July	93.5		82	97	94	93
August	94.8		96	94	92	96
September	93.8		92	96	94	88
October	89.1		86	95	80	82
November	86.7		88	77	82	82
December	79.8		78	85	79	78
Average	87.5	87.6	85.3	87.7	85.5	86.5

6th best VFR conditions of South Africa

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	97.1	100	99	96	94	98
February	97.6	100	96	100	96	97
March	98.5	100	100	99	97	96
April	97.3		100	95	98	95
May	98.5		97	97	99	100
June	98.5		95	99	99	100
July	99.1		95	100	100	100
August	99.9		100	100	100	100
September	99.5		99	100	100	98
October	98.6		97	99	98	98
November	97.7		98	97	97	95
December	96.3		99	97	96	98
Average	98.3	99.9	97.9	98.2	97.7	97.8

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	27.7	28	29	26	27	28
February	27.2	30	26	28	26	28
March	27.0	30	27	26	26	26
April	23.8		25	22	26	23
May	21.8		21	21	22	22
June	19.7		21	19	20	18
July	19.6		19	20	18	20
August	22.6		22	22	22	22
September	26.9		27	27	27	26
October	27.6		27	29	26	28
November	27.8		28	25	28	27
December	27.3		28	27	26	27
Average	25.4	29.0	25.0	24.2	24.4	24.4

12th highest temperature of South Africa

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	16.6	17	16	17	17	17
February	16.7	17	17	16	17	17
March	15.2	17	15	15	14	15
April	11.4		11	11	11	12
May	7.5		9	7	7	7
June	4.4		5	4	5	3
July	4.0		4	5	3	3
August	7.1		6	7	7	6
September	10.7		10	11	11	11
October	13.6		14	15	12	15
November	14.9		16	14	15	15
December	16.5		17	16	15	17
Average	12.1	16.8	11.6	11.4	11.1	11.3

10th lowest temperature of South Africa

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	2.6	1	1	3	4	4
February	4.4	0	7	2	6	1
March	2.6	0	2	3	3	6
April	3.3		1	12	1	5
May	0.7		1	1	0	0
June	0.2		0	1	0	1
July	0.2		1	0	0	0
August	0.0		0	0	0	0
September	0.1		0	0	0	0
October	1.4		4	1	2	0
November	2.5		2	6	2	4
December	5.6		4	7	4	4
Average	1.9	0.3	1.8	2.7	2.0	2.1

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	6.7	6	6	7	7	7
February	6.3	6	6	6	6	7
March	6.2	6	6	6	6	6
April	5.7		6	7	5	6
May	5.3		6	6	5	5
June	5.6		6	7	6	5
July	5.9		7	5	6	6
August	7.5		7	8	8	8
September	7.6		8	7	8	8
October	8.0		8	8	8	8
November	7.9		7	7	9	8
December	7.5		7	7	8	7
Average	6.7	6.2	6.7	6.5	6.9	6.7

12th highest wind speed of South Africa

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	002°	013°	026°	034°	353°
February	320°	042°	020°	066°	036°
March	344°	359°	357°	317°	341°
April		314°	348°	318°	338°
May		333°	333°	292°	304°
June		300°	041°	325°	327°
July		330°	313°	306°	349°
August		339°	316°	334°	310°
September		320°	341°	340°	340°
October		004°	337°	346°	357°
November		343°	343°	327°	335°
December		005°	325°	342°	352°

Prevailing wind direction

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