Climate Swansea Airport 2020-2024

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

Calculated from historical METAR data of Pembrey Sands (EGOP) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	52.0	53	51	48	51	46
February	53.4	42	54	54	41	53
March	58.1	46	36	76	61	72
April	75.9		59	81	96	82
May	77.1		81	70	77	80
June	72.0		78	80	66	69
July	73.8		52	85	79	57
August	62.6		51	76	58	50
September	69.8		65	74	63	75
October	59.9		48	59	59	65
November	60.6		56	41	51	62
December	48.5		32	74	36	60
Average	63.6	46.6	57.2	70.3	64.3	65.8

80th best VFR conditions of United Kingdom

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	78.1	77	79	78	71	69
February	74.5	63	78	75	63	75
March	80.5	77	62	90	81	85
April	90.1		82	92	100	94
May	90.1		92	87	88	96
June	87.8		88	91	86	89
July	87.1		77	93	91	75
August	82.3		81	87	79	71
September	87.1		88	94	83	84
October	83.3		77	89	83	83
November	82.4		86	64	81	78
December	75.0		76	83	59	83
Average	82.9	72.8	81.0	86.7	82.3	83.2

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	8.4	8	9	9	7	9
February	9.1	10	9	10	8	9
March	10.4	11	10	12	11	10
April	13.1		13	13	12	16
May	15.9		17	16	14	17
June	18.5		21	18	18	18
July	20.0		19	21	21	18
August	19.2		19	21	19	20
September	18.0		20	18	19	18
October	14.9		16	16	15	14
November	11.3		12	10	12	12
December	9.4		11	6	10	9
Average	13.5	9.6	14.4	14.3	14.0	14.2

60th highest temperature of United Kingdom

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	3.3	3	4	3	2	5
February	4.1	6	4	6	3	6
March	4.2	5	5	4	4	4
April	5.1		6	5	3	6
May	7.8		7	10	7	8
June	11.4		12	11	11	11
July	12.6		13	12	13	12
August	13.1		13	12	13	15
September	11.0		14	10	12	10
October	9.2		10	11	10	8
November	5.8		6	6	6	6
December	4.8		7	-1	6	4
Average	7.3	4.5	8.4	7.3	7.6	7.8

46th lowest temperature of United Kingdom

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	5.4	16	6	0	1	5
February	5.6	34	2	0	0	6
March	6.1	26	0	3	2	3
April	1.5		1	0	2	0
May	0.6		0	0	0	0
June	1.7		0	1	0	1
July	1.1		2	0	0	1
August	1.3		3	1	0	0
September	3.3		5	0	4	4
October	6.6		27	0	1	0
November	8.1		19	6	2	5
December	7.5		32	0	1	0
Average	5.7	25.2	6.5	0.8	1.1	1.7

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	13.0	13	15	11	12	15
February	15.8	15	11	21	14	24
March	13.3	14	14	11	13	14
April	10.7		12	11	9	9
May	11.3		10	12	15	11
June	11.5		10	13	8	13
July	11.3		17	11	0	14
August	13.1		14	11	12	13
September	13.0		13	12	10	12
October	14.8		12	17	16	15
November	14.4		16	18	11	16
December	14.4		18	9	15	14
Average	12.9	13.9	13.2	12.8	11.1	13.7

60th highest wind speed of United Kingdom

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	229°	249°	262°	244°	221°
February	240°	249°	251°	161°	242°
March	202°	212°	132°	239°	228°
April		208°	237°	358°	159°
May		348°	233°	232°	220°
June		226°	227°	203°	248°
July		240°	278°	360°	244°
August		250°	250°	240°	220°
September		218°	245°	230°	244°
October		216°	212°	231°	268°
November		276°	225°	291°	224°
December		255°	104°	236°	244°

Prevailing wind direction

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