Climate Sinfo Heliport 2020-2024

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

Calculated from historical METAR data of Quatro de Fevereiro International Airport (FNLU) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	83.8	81	77	83	94	89
February	83.5	77	78	91	88	79
March	84.7	78	83	86	86	86
April	84.4		80	82	87	83
May	67.4		56	64	73	81
June	53.5		32	65	62	63
July	45.1		38	40	60	50
August	39.9		43	44	44	34
September	50.0		51	58	52	61
October	55.3		54	58	57	58
November	71.4		57	82	77	77
December	78.8		76	69	83	79
Average	68.3	78.7	59.7	69.0	72.6	69.8

10th best VFR conditions of Angola

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	98.7	99	98	100	100	98
February	99.2	99	100	100	100	99
March	99.0	98	100	100	99	99
April	98.9		99	100	98	100
May	99.1		100	100	98	100
June	96.3		100	97	100	99
July	92.0		92	92	96	97
August	94.2		97	87	97	99
September	98.6		100	98	99	100
October	98.7		100	98	100	99
November	98.2		96	97	100	98
December	99.1		99	100	98	100
Average	97.8	98.5	98.1	97.4	98.7	98.9

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	30.5	31	30	29	31	31
February	31.0	32	31	30	31	31
March	31.0	32	29	31	31	32
April	30.7		31	30	31	31
May	29.7		30	29	30	31
June	27.0		26	26	28	28
July	25.3		25	24	26	26
August	25.3		25	24	26	26
September	26.5		27	26	26	27
October	28.3		28	28	28	28
November	29.3		29	28	29	30
December	29.9		31	30	29	29
Average	29.0	31.5	28.5	27.7	28.7	29.1

6th highest temperature of Angola

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	23.6	25	25	24	23	22
February	23.6	25	23	24	24	24
March	24.0	25	22	25	23	25
April	24.1		25	25	24	23
May	24.1		25	24	23	25
June	20.2		21	20	22	21
July	19.4		20	20	21	19
August	19.8		20	19	21	21
September	20.7		22	21	22	21
October	23.0		24	24	23	22
November	23.6		24	24	25	23
December	24.2		25	25	23	23
Average	22.8	24.9	22.8	22.7	22.7	22.3

11th lowest temperature of Angola

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	1.6	2	4	1	0	4
February	1.8	4	0	0	1	2
March	1.0	1	2	1	2	0
April	1.3		3	1	0	1
May	0.4		1	0	2	0
June	0.0		0	0	0	0
July	0.2		1	0	0	0
August	0.2		1	0	0	0
September	1.1		1	1	1	1
October	2.2		2	2	0	5
November	2.9		7	4	0	4
December	2.1		3	2	5	2
Average	1.3	2.2	2.1	1.1	0.9	1.5

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	6.8	8	8	6	8	7
February	7.1	7	8	7	7	7
March	7.1	7	8	8	7	7
April	6.8		7	7	7	7
May	6.8		8	7	6	6
June	6.0		6	6	6	6
July	5.7		6	5	6	6
August	5.7		6	6	6	6
September	6.2		7	5	6	6
October	7.1		8	8	7	7
November	7.0		7	7	7	7
December	6.9		7	8	7	7
Average	6.7	7.4	7.3	6.6	6.7	6.4

6th highest wind speed of Angola

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	274°	254°	245°	244°	258°
February	271°	246°	246°	239°	243°
March	262°	267°	231°	248°	254°
April		251°	226°	202°	251°
May		246°	236°	246°	248°
June		245°	241°	246°	265°
July		266°	248°	251°	246°
August		273°	226°	243°	230°
September		262°	243°	252°	247°
October		248°	223°	239°	236°
November		256°	244°	237°	235°
December		259°	251°	220°	237°

Prevailing wind direction

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