Climate Humberto Delgado Airport (Lisbon Portela Airport) 2020-2024

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

Calculated from historical METAR data of Humberto Delgado Airport (Lisbon Portela Airport) (LPPT) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	73.1	72	76	85	69	62
February	79.6	74	96	90	57	70
March	83.3	80	78	81	95	87
April	85.1		94	85	82	74
May	87.6		95	82	89	82
June	90.9		91	95	90	91
July	88.2		92	97	88	96
August	92.0		96	86	91	88
September	91.0		87	87	93	89
October	85.5		84	82	87	84
November	75.6		67	68	93	76
December	72.3		77	66	64	71
Average	83.5	75.5	86.8	84.9	84.3	82.0

8th best VFR conditions of Portugal

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	87.8	83	93	92	84	83
February	93.4	89	99	99	87	91
March	94.3	92	94	94	98	98
April	95.6		100	96	95	89
May	97.6		100	99	99	97
June	98.0		99	99	98	98
July	98.6		99	98	99	98
August	97.6		100	93	99	96
September	97.1		95	96	97	98
October	92.8		91	92	95	91
November	89.4		88	85	98	89
December	86.3		88	78	87	86
Average	93.9	88.1	95.8	94.4	95.0	93.4

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	14.4	16	14	15	13	14
February	16.4	18	16	18	16	18
March	17.6	18	19	17	19	18
April	19.8		24	18	20	18
May	23.5		24	25	22	24
June	25.0		27	25	24	24
July	27.8		28	31	27	31
August	28.5		30	28	28	28
September	26.8		26	25	26	27
October	23.8		25	24	25	22
November	17.7		18	18	18	18
December	15.4		15	16	16	15
Average	20.9	16.9	22.1	21.8	21.0	21.3

6th highest temperature of Portugal

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	7.9	10	8	8	7	8
February	9.1	11	7	9	11	10
March	10.0	10	10	10	10	10
April	11.6		13	11	13	12
May	14.3		15	15	13	15
June	16.1		18	16	15	16
July	17.8		18	19	17	19
August	18.1		19	18	18	18
September	17.4		18	18	18	18
October	15.2		16	17	16	14
November	11.5		13	12	10	12
December	9.4		9	12	11	9
Average	12.8	10.3	13.6	13.7	13.0	13.3

7th lowest temperature of Portugal

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	7.8	10	8	3	9	8
February	6.9	15	2	1	17	4
March	8.6	14	6	12	1	4
April	7.4		2	6	8	12
May	3.2		2	1	3	5
June	2.7		2	3	3	1
July	0.4		0	0	1	0
August	0.6		0	0	0	3
September	2.3		5	4	2	2
October	7.2		14	7	5	9
November	10.1		9	17	3	7
December	9.9		5	15	14	18
Average	6.0	13.0	4.2	5.0	4.8	5.8

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	7.8	7	8	7	8	8
February	8.2	9	7	7	9	6
March	9.4	10	7	10	9	9
April	8.8		9	11	8	9
May	9.4		10	9	10	8
June	9.8		10	10	10	10
July	10.0		11	9	11	9
August	10.0		11	9	10	10
September	8.9		8	9	9	9
October	8.2		8	8	8	9
November	8.0		8	7	8	7
December	7.6		7	9	8	7
Average	8.9	8.7	8.9	8.8	9.0	8.7

6th highest wind speed of Portugal

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	109°	357°	034°	320°	058°
February	289°	048°	009°	217°	354°
March	267°	257°	354°	023°	346°
April		336°	316°	263°	244°
May		333°	291°	320°	301°
June		305°	298°	319°	316°
July		326°	317°	325°	326°
August		329°	311°	316°	321°
September		250°	297°	316°	289°
October		235°	230°	321°	324°
November		275°	274°	008°	065°
December		016°	218°	315°	314°

Prevailing wind direction

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