Climate Vaasa Airport 2020-2024

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

Calculated from historical METAR data of Vaasa Airport (EFVA) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	50.6	61	46	54	31	60
February	52.1	49	50	55	51	59
March	64.7	44	62	76	73	67
April	78.2		79	78	74	83
May	84.6		90	91	73	92
June	88.5		91	82	90	90
July	83.9		79	85	94	74
August	76.3		67	80	67	85
September	66.8		57	71	78	69
October	56.4		71	52	44	45
November	35.0		19	29	47	49
December	36.6		52	42	49	14
Average	68.9	49.6	70.2	73.3	70.9	72.7

5th best VFR conditions of Finland

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	70.0	68	67	70	54	73
February	71.2	68	69	72	72	70
March	79.6	65	74	89	85	84
April	86.9		84	92	84	89
May	93.1		96	95	86	97
June	94.6		96	94	92	96
July	94.1		90	95	97	92
August	91.1		84	93	86	95
September	85.6		77	88	92	85
October	79.1		91	76	67	73
November	64.1		53	52	82	79
December	62.6		76	57	70	45
Average	83.3	66.5	83.7	86.9	84.3	86.4

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	-2.3	-6	0	-1	-3	3
February	-2.3	-3	0	-1	-5	2
March	1.3	2	-1	4	2	3
April	6.8		8	6	7	6
May	13.3		14	14	12	11
June	19.3		20	20	21	22
July	20.8		20	21	24	19
August	19.4		20	21	19	19
September	14.0		17	13	12	15
October	7.7		5	9	10	10
November	2.5		-1	2	2	6
December	-2.9		-5	-4	-4	2
Average	7.2	-3.6	8.1	9.0	8.1	9.7

10th highest temperature of Finland

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	-8.6	-14	-4	-8	-8	-2
February	-9.3	-8	-5	-9	-14	-5
March	-7.7	-4	-11	-4	-5	-3
April	-3.9		-3	-3	-1	-1
May	3.0		4	4	3	1
June	9.2		9	10	10	10
July	11.1		11	11	13	10
August	10.5		12	11	10	10
September	6.4		9	5	5	7
October	1.7		-2	3	4	4
November	-2.2		-6	-1	-4	2
December	-6.2		-11	-9	-11	-1
Average	-1.7	-9.3	0.3	1.2	0.2	2.6

19th lowest temperature of Finland

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	31.7	25	29	29	39	24
February	30.2	21	22	27	37	23
March	21.3	13	26	15	21	15
April	13.3		9	11	17	13
May	9.6		8	9	13	7
June	7.7		6	5	4	4
July	8.8		14	9	3	16
August	9.9		17	11	13	4
September	12.7		12	12	13	11
October	18.5		12	11	25	26
November	23.2		46	15	20	20
December	33.3		43	40	33	30
Average	15.5	18.2	15.9	12.5	15.7	13.1

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	7.5	7	8	9	7	9
February	7.6	8	8	8	6	9
March	8.5	7	8	9	9	11
April	7.9		6	7	9	9
May	8.1		9	9	8	8
June	7.6		7	7	7	7
July	6.9		6	7	7	7
August	7.4		7	7	7	7
September	7.3		8	7	7	9
October	7.3		6	8	9	7
November	6.8		6	6	6	10
December	6.5		6	5	6	8
Average	7.5	7.3	7.1	7.4	7.4	8.2

10th highest wind speed of Finland

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	207°	186°	262°	075°	219°
February	186°	239°	203°	278°	212°
March	185°	309°	243°	271°	228°
April		012°	304°	309°	323°
May		244°	272°	358°	299°
June		295°	240°	280°	283°
July		295°	240°	271°	218°
August		142°	212°	355°	230°
September		216°	037°	261°	243°
October		335°	218°	188°	140°
November		063°	126°	212°	199°
December		121°	141°	240°	145°

Prevailing wind direction

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