Climate Stronsay Airport 2020-2024

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

Calculated from historical METAR data of Kirkwall Airport (EGPA) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	74.5	64	71	69	78	86
February	79.5	70	70	78	82	83
March	74.6	61	64	80	73	87
April	73.0		68	61	86	72
May	62.3		46	75	55	67
June	63.8		71	65	73	50
July	58.6		59	60	27	69
August	66.3		58	64	46	63
September	73.0		80	69	66	81
October	73.5		64	72	74	68
November	76.9		71	73	70	81
December	74.0		68	85	74	72
Average	68.7	64.4	64.4	68.9	64.0	71.0

84th 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	95.7	95	98	93	98	94
February	94.8	90	94	97	97	97
March	93.2	95	84	92	88	100
April	89.5		88	80	97	93
May	83.3		81	91	82	90
June	81.9		90	88	90	60
July	80.4		87	84	58	89
August	85.9		89	84	80	80
September	86.3		93	83	81	93
October	90.8		91	85	93	87
November	94.5		97	94	92	91
December	95.4		92	94	97	100
Average	88.4	93.6	89.2	87.5	85.3	87.3

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	6.7	6	7	8	5	8
February	6.9	7	8	6	6	6
March	7.8	8	7	9	8	8
April	9.3		9	9	8	10
May	11.7		12	12	10	12
June	14.7		16	15	15	14
July	15.7		15	15	16	14
August	15.9		16	16	16	16
September	14.3		16	14	15	14
October	11.5		11	12	12	11
November	9.0		9	11	9	10
December	7.2		7	6	7	7
Average	10.4	7.0	11.0	11.3	10.5	10.7

90th 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	3.0	3	3	4	2	4
February	2.6	3	4	2	2	2
March	3.3	4	2	3	4	2
April	4.0		3	4	2	4
May	4.5		6	7	5	6
June	8.6		9	9	8	8
July	10.3		9	10	12	9
August	10.3		10	10	11	10
September	9.0		10	10	10	9
October	7.4		7	8	7	7
November	5.2		4	7	6	6
December	3.3		3	2	3	4
Average	5.6	3.2	5.8	6.6	5.9	5.9

24th 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	20.8	24	23	21	17	21
February	17.1	19	20	20	10	26
March	14.7	15	13	6	17	11
April	10.6		13	12	8	4
May	11.1		10	14	8	10
June	9.9		7	11	6	11
July	11.7		11	13	6	15
August	9.5		8	9	9	5
September	15.9		11	15	10	17
October	24.1		29	18	26	28
November	21.2		17	20	31	18
December	18.6		30	17	6	21
Average	14.6	18.6	13.7	13.4	11.4	13.9

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	13.7	15	14	16	12	16
February	14.7	13	14	16	18	19
March	13.4	12	11	12	15	15
April	12.1		12	10	12	13
May	10.8		12	11	9	13
June	10.3		7	11	10	11
July	9.6		10	11	7	11
August	9.3		9	8	9	10
September	11.6		10	12	9	14
October	13.0		15	13	12	12
November	12.7		9	14	14	14
December	12.3		12	12	11	14
Average	11.7	13.1	10.8	11.6	10.7	12.9

90th 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	238°	247°	250°	319°	222°
February	228°	249°	247°	166°	232°
March	148°	020°	174°	260°	233°
April		124°	085°	317°	216°
May		241°	229°	042°	272°
June		162°	202°	238°	090°
July		303°	267°	333°	260°
August		327°	222°	006°	150°
September		208°	030°	205°	233°
October		151°	203°	222°	083°
November		034°	161°	276°	222°
December		187°	346°	205°	164°

Prevailing wind direction

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