Climate Olsztyn-Mazury Airport 2020-2024

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

Calculated from historical METAR data of Olsztyn-Mazury Airport (EPSY) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	23.6	27	23	30	22	26
February	45.2	33	45	61	45	64
March	65.0	56	63	87	54	72
April	80.6		70	81	78	92
May	87.6		95	87	88	82
June	89.8		92	87	92	83
July	88.9		94	92	88	92
August	87.7		84	93	81	80
September	77.9		93	73	78	80
October	58.4		49	64	72	56
November	26.8		34	29	26	26
December	22.8		23	11	33	17
Average	65.5	40.4	70.4	73.4	68.9	68.1

14th best VFR conditions of Poland

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	51.8	53	42	63	49	55
February	70.8	56	80	84	73	87
March	84.2	76	83	96	78	89
April	92.6		86	91	92	97
May	96.3		99	97	96	94
June	96.6		96	93	97	97
July	95.7		98	96	94	97
August	94.6		92	98	90	93
September	88.9		96	84	90	88
October	79.7		70	75	89	83
November	56.6		61	59	55	55
December	47.4		39	35	45	47
Average	81.3	63.1	82.9	86.0	83.0	84.3

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	1.0	0	4	3	-1	4
February	3.0	7	3	5	0	6
March	7.3	9	7	8	6	8
April	12.9		12	11	11	13
May	18.0		19	17	16	15
June	23.8		23	24	25	23
July	23.7		24	24	26	23
August	24.2		25	27	21	24
September	18.8		23	16	17	20
October	13.2		13	14	13	13
November	5.9		5	5	6	7
December	1.9		2	-2	0	3
Average	11.9	5.2	13.4	13.0	11.7	13.3

14th highest temperature of Poland

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	-4.5	-6	0	-3	-5	0
February	-4.9	1	-2	-1	-10	-1
March	-2.5	1	-2	-5	-3	0
April	2.5		1	0	0	5
May	7.3		4	4	5	9
June	12.4		9	11	11	17
July	12.6		11	11	15	10
August	12.7		14	14	11	12
September	8.2		9	5	7	8
October	4.8		4	5	3	6
November	1.5		-1	1	2	2
December	-2.4		-1	-5	-5	-1
Average	3.7	-2.6	3.7	3.2	2.6	5.5

1st lowest temperature of Poland

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	23.1	32	23	28	30	15
February	16.4	31	17	13	15	10
March	10.5	10	14	1	13	11
April	7.6		10	10	11	2
May	7.4		5	7	10	13
June	3.5		4	6	1	5
July	4.9		2	7	4	4
August	5.3		4	1	13	7
September	6.9		1	6	5	6
October	10.6		18	5	5	9
November	13.0		19	6	20	10
December	17.3		22	18	11	10
Average	10.8	23.0	9.6	7.6	10.2	8.0

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	7.4	7	8	8	6	8
February	7.7	7	8	10	6	9
March	7.5	7	8	6	8	8
April	8.1		7	8	8	9
May	7.3		6	7	8	9
June	6.7		6	6	6	8
July	6.6		7	7	6	6
August	5.9		7	6	7	5
September	6.6		6	6	6	7
October	7.4		8	7	8	7
November	6.5		7	5	7	7
December	7.1		7	6	7	7
Average	7.0	7.0	6.8	6.8	6.9	7.4

14th highest wind speed of Poland

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	234°	210°	262°	223°	234°
February	221°	270°	233°	310°	235°
March	143°	238°	340°	252°	240°
April		018°	337°	289°	290°
May		061°	283°	215°	315°
June		001°	278°	356°	022°
July		264°	305°	282°	253°
August		221°	047°	257°	324°
September		204°	293°	307°	215°
October		238°	230°	194°	180°
November		217°	170°	217°	217°
December		229°	154°	229°	152°

Prevailing wind direction

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