Climate Santarém Airfield 2020-2024

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

Calculated from historical METAR data of Alverca Air Base (LPAR) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	71.4	78	82	89	62	54
February	82.4	74	94	89	68	76
March	83.3	78	82	79	91	86
April	84.8		92	86	79	77
May	88.5		92	88	94	91
June	92.2		94	92	91	96
July	92.6		95	96	96	96
August	92.2		100	88	89	87
September	90.7		86	85	92	92
October	82.8		78	83	95	81
November	80.7		72	69	96	80
December	75.3		85	55	77	76
Average	84.3	76.5	87.6	84.3	86.1	82.9

6th 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	89.7	93	97	94	84	89
February	95.3	91	99	97	93	95
March	96.2	94	98	93	99	99
April	96.6		100	98	94	94
May	98.4		100	100	100	100
June	99.7		100	100	100	100
July	99.9		100	100	100	100
August	98.7		100	99	97	98
September	98.1		98	96	97	99
October	93.5		93	98	97	93
November	90.7		87	88	100	87
December	90.3		93	86	97	84
Average	95.4	92.6	97.1	96.0	96.5	94.6

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	15.1	17	15	16	14	15
February	17.1	18	16	18	17	18
March	18.8	18	20	17	20	20
April	20.7		25	19	21	19
May	25.1		26	27	24	27
June	26.4		29	26	26	26
July	29.1		30	33	28	32
August	29.9		32	29	29	29
September	27.9		28	26	27	29
October	24.5		24	24	27	22
November	18.4		19	19	18	18
December	15.9		15	17	17	15
Average	22.3	17.7	23.4	22.7	22.4	23.0

2nd 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	9.5	12	9	9	8	10
February	10.7	13	9	11	12	11
March	12.9	13	13	13	13	15
April	14.5		17	14	14	18
May	18.3		19	19	17	19
June	20.2		22	20	19	20
July	21.6		22	23	21	23
August	21.2		23	21	21	22
September	19.9		20	20	20	20
October	16.9		18	18	17	16
November	13.3		14	15	12	14
December	11.3		11	14	13	11
Average	15.8	12.6	16.4	16.3	15.6	16.5

13th 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	5.8	6	4	2	7	5
February	4.4	13	2	0	10	1
March	6.5	9	4	6	1	4
April	6.5		4	6	6	12
May	2.9		0	1	2	2
June	2.0		1	2	2	1
July	0.2		1	0	0	0
August	0.9		0	0	1	3
September	1.8		3	5	1	3
October	7.5		16	7	2	9
November	8.6		7	20	3	7
December	10.6		8	19	6	20
Average	5.0	9.3	3.9	5.2	3.1	4.8

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	6.2	7	7	8	7	8
February	6.2	10	8	6	8	6
March	7.1	8	8	10	8	9
April	6.6		8	10	7	9
May	5.8		9	8	8	6
June	5.8		8	10	9	8
July	7.2		9	8	9	8
August	7.0		9	8	8	9
September	6.6		7	8	8	7
October	6.1		8	7	7	8
November	6.0		7	7	8	6
December	6.1		7	8	7	6
Average	6.4	8.2	7.8	8.1	7.8	7.3

2nd 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	038°	022°	036°	357°	164°
February	316°	059°	037°	217°	038°
March	288°	235°	010°	049°	347°
April		024°	343°	271°	215°
May		360°	040°	348°	007°
June		330°	298°	344°	336°
July		351°	009°	355°	356°
August		358°	341°	341°	340°
September		196°	263°	341°	169°
October		235°	198°	037°	002°
November		296°	271°	018°	050°
December		026°	232°	345°	315°

Prevailing wind direction

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