Climate London Stansted Airport 2020-2024

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

Calculated from historical METAR data of London Stansted Airport (EGSS) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	47.1	59	49	55	36	43
February	52.3	38	57	64	57	60
March	53.6	47	43	60	57	68
April	73.4		69	83	83	84
May	72.5		64	79	69	96
June	72.1		76	86	63	75
July	78.2		79	91	66	73
August	75.2		75	86	59	68
September	71.9		72	82	59	78
October	59.9		64	73	51	52
November	49.9		62	42	52	44
December	40.4		36	48	28	34
Average	63.1	47.2	64.6	74.7	59.4	68.3

65th 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	74.2	86	77	82	61	75
February	81.1	70	88	94	82	89
March	81.8	80	76	75	86	92
April	89.0		88	96	97	93
May	90.0		87	95	89	99
June	89.3		94	94	79	93
July	93.0		93	99	90	92
August	90.4		89	94	87	82
September	89.7		92	92	83	92
October	83.7		82	93	83	81
November	76.4		81	73	86	71
December	69.1		72	70	63	56
Average	84.8	78.4	86.3	90.1	83.7	86.9

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	7.2	8	8	8	6	9
February	9.2	11	10	10	8	10
March	10.8	12	10	12	11	10
April	13.7		13	14	11	16
May	17.3		17	18	15	19
June	21.3		23	21	20	21
July	23.0		21	26	22	21
August	22.4		22	26	20	23
September	19.7		23	19	21	20
October	15.2		17	17	15	14
November	10.4		10	12	10	12
December	8.0		10	4	9	7
Average	14.3	10.2	15.2	15.8	13.9	15.0

21st 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	1.4	2	1	2	1	4
February	2.7	5	3	3	2	3
March	3.8	6	4	4	3	3
April	4.3		4	5	1	5
May	7.4		7	8	6	7
June	11.2		12	10	12	11
July	13.1		13	14	13	12
August	12.9		13	14	12	14
September	10.6		13	11	12	10
October	8.0		10	9	8	8
November	4.5		5	7	4	5
December	3.1		5	-1	5	3
Average	6.5	4.1	7.4	7.3	6.6	6.9

45th 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	12.2	8	13	6	24	7
February	14.9	20	4	14	16	18
March	14.4	15	26	16	11	7
April	7.6		13	4	1	6
May	8.1		6	9	17	1
June	7.6		3	4	10	12
July	7.6		12	2	10	10
August	8.5		8	4	8	12
September	7.7		5	7	7	6
October	12.8		12	8	12	27
November	12.8		19	23	8	10
December	14.8		17	6	19	17
Average	10.6	14.2	10.7	7.7	11.2	10.5

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	8.9	10	10	7	9	10
February	10.6	10	8	13	10	14
March	10.4	10	11	9	10	12
April	8.7		9	9	8	9
May	8.0		8	8	9	8
June	8.2		8	8	7	9
July	8.1		10	8	7	8
August	8.2		8	8	8	9
September	8.3		8	7	8	9
October	9.5		9	10	10	10
November	8.8		9	10	8	9
December	9.3		11	7	9	9
Average	9.0	10.2	8.9	8.6	8.4	9.4

21st 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	243°	240°	250°	256°	220°
February	223°	261°	236°	158°	233°
March	180°	220°	107°	251°	237°
April		125°	036°	026°	095°
May		030°	234°	216°	024°
June		070°	207°	006°	204°
July		232°	234°	213°	248°
August		237°	164°	254°	237°
September		191°	263°	200°	271°
October		210°	204°	220°	222°
November		249°	201°	279°	210°
December		228°	353°	225°	212°

Prevailing wind direction

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