Climate Stockholm-Arlanda Airport 2020-2024

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

Calculated from historical METAR data of Stockholm-Arlanda Airport (ESSA) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	44.4	39	36	49	34	56
February	53.4	43	48	56	56	63
March	65.3	50	57	90	71	73
April	86.4		85	85	89	93
May	86.4		93	86	69	90
June	91.2		97	89	90	93
July	90.1		85	89	95	88
August	82.2		62	88	76	92
September	74.0		73	82	76	64
October	58.9		68	64	53	51
November	40.2		30	39	56	39
December	34.1		16	46	56	20
Average	70.6	44.7	70.4	78.2	73.4	75.5

21st best VFR conditions of Sweden

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	68.2	67	55	69	54	84
February	76.6	56	82	81	80	91
March	81.2	68	71	97	93	84
April	93.5		91	92	94	96
May	92.6		96	95	79	95
June	95.8		100	94	97	97
July	96.9		96	97	99	95
August	91.9		82	94	88	97
September	88.0		85	95	88	79
October	81.0		89	82	76	72
November	67.9		51	78	81	75
December	56.7		40	76	67	56
Average	84.1	64.0	83.4	90.3	86.2	88.3

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	0.6	-2	2	1	-1	5
February	1.3	1	2	2	-1	4
March	4.5	5	2	7	6	6
April	9.5		9	9	8	10
May	15.4		16	15	14	13
June	21.1		22	21	22	22
July	21.5		20	21	24	19
August	20.4		18	22	17	22
September	15.4		17	14	14	16
October	9.8		8	11	11	10
November	4.7		2	5	4	8
December	0.8		-2	-4	-1	4
Average	9.4	1.1	9.6	10.7	9.8	11.5

27th highest temperature of Sweden

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	-5.9	-8	-3	-4	-5	0
February	-5.6	-4	-4	-3	-8	-2
March	-4.8	-2	-6	-3	-1	-2
April	-1.0		-2	-2	-2	0
May	3.8		3	4	4	2
June	9.9		9	11	11	10
July	11.3		11	11	13	10
August	10.9		11	12	9	11
September	7.3		9	5	6	8
October	3.6		2	5	5	5
November	0.4		-2	2	-1	3
December	-4.6		-6	-8	-7	1
Average	1.8	-5.6	1.8	2.7	2.1	3.8

24th lowest temperature of Sweden

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	20.5	28	20	16	43	6
February	18.5	20	17	15	19	12
March	16.2	13	32	3	13	14
April	9.2		6	13	10	5
May	9.7		7	10	20	10
June	5.9		1	9	4	4
July	5.8		10	6	4	7
August	10.2		17	8	19	4
September	8.4		6	11	7	10
October	13.6		15	6	11	17
November	16.7		35	15	12	12
December	26.6		48	21	25	27
Average	12.4	18.8	14.5	9.7	13.5	9.4

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	9.3	10	10	11	8	12
February	9.8	9	10	11	9	13
March	9.9	9	10	9	11	12
April	9.8		9	9	10	11
May	8.7		9	9	9	9
June	8.7		8	9	7	8
July	8.4		9	8	8	9
August	8.6		8	8	9	8
September	9.1		9	7	9	9
October	9.8		11	9	10	9
November	8.5		8	8	9	10
December	7.8		7	6	7	8
Average	9.0	9.0	8.9	8.7	8.8	9.5

27th highest wind speed of Sweden

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	245°	208°	275°	336°	230°
February	181°	272°	241°	278°	228°
March	114°	274°	253°	273°	241°
April		045°	331°	307°	299°
May		210°	252°	081°	308°
June		089°	211°	204°	098°
July		216°	247°	117°	231°
August		160°	213°	291°	210°
September		213°	348°	278°	238°
October		307°	227°	211°	178°
November		002°	095°	241°	219°
December		332°	323°	274°	160°

Prevailing wind direction

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