Climate Cardiff International Airport 2020-2024

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

Calculated from historical METAR data of Cardiff International Airport (EGFF) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	49.3	59	64	52	33	41
February	53.6	42	48	53	54	56
March	57.1	57	44	69	66	71
April	74.4		56	88	90	80
May	74.4		80	72	75	78
June	69.3		81	81	67	69
July	71.9		63	79	73	51
August	65.6		67	78	53	59
September	70.1		71	87	62	73
October	64.6		70	75	61	64
November	60.8		66	63	60	53
December	50.7		38	65	40	58
Average	63.8	52.8	63.9	73.8	63.5	64.0

74th 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	82.6	97	87	84	73	80
February	82.7	71	72	85	88	91
March	84.3	89	83	89	88	90
April	90.5		84	94	100	93
May	91.2		90	90	96	95
June	91.3		94	94	91	92
July	90.2		92	94	90	78
August	90.8		88	94	94	87
September	91.3		92	99	88	87
October	90.2		88	97	95	88
November	86.5		90	86	85	83
December	81.4		77	80	83	83
Average	88.1	85.6	87.2	91.4	90.2	87.7

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	8.0	8	8	9	7	9
February	9.1	10	9	10	8	10
March	10.3	11	10	12	11	10
April	13.1		12	14	12	16
May	16.3		17	16	14	18
June	19.5		22	19	19	19
July	20.9		19	23	22	19
August	20.3		20	24	19	21
September	18.5		21	19	20	19
October	15.0		16	16	16	14
November	11.1		11	12	11	12
December	9.0		10	6	10	9
Average	13.7	9.7	14.5	15.2	14.0	14.5

41st 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	3.5	3	3	3	3	5
February	4.2	6	4	5	4	5
March	4.7	5	5	5	5	4
April	5.7		6	6	3	7
May	8.7		9	10	8	8
June	12.0		13	12	12	12
July	13.7		13	13	15	13
August	13.7		13	15	13	15
September	11.9		14	11	13	11
October	9.7		11	11	11	9
November	6.4		6	9	6	7
December	4.9		7	1	6	5
Average	7.8	4.8	8.7	8.6	8.1	8.3

70th 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	14.0	8	12	9	20	14
February	15.3	25	8	19	16	25
March	14.2	13	24	9	9	14
April	7.1		15	3	3	6
May	7.4		4	7	19	1
June	7.0		4	6	4	10
July	7.9		16	4	8	9
August	7.6		10	4	6	8
September	9.8		9	8	9	9
October	12.8		11	7	13	23
November	13.1		16	17	9	9
December	18.9		29	6	17	20
Average	11.0	15.3	12.2	7.5	10.2	10.9

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	9.8	10	10	8	10	9
February	11.6	10	10	14	10	16
March	10.9	10	10	10	10	13
April	9.6		9	10	9	10
May	9.2		9	9	10	11
June	9.3		9	9	8	10
July	9.2		11	8	8	10
August	9.3		9	8	9	9
September	9.3		8	9	8	10
October	9.8		9	9	9	11
November	10.0		11	10	9	10
December	10.4		12	8	11	9
Average	9.8	10.2	9.6	9.4	9.2	10.4

41st 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	265°	270°	278°	309°	237°
February	266°	300°	263°	122°	261°
March	208°	247°	090°	274°	346°
April		093°	049°	051°	081°
May		031°	264°	258°	348°
June		046°	253°	332°	279°
July		258°	266°	273°	273°
August		274°	318°	283°	255°
September		207°	300°	262°	296°
October		249°	216°	247°	287°
November		282°	234°	303°	242°
December		263°	075°	271°	272°

Prevailing wind direction

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