Climate Tiree Airport 2020-2024

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

Calculated from historical METAR data of Tiree Airport (EGPU) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	63.8	67	62	60	76	52
February	66.8	59	44	73	66	65
March	70.6	75	67	77	45	77
April	77.3		62	73	84	80
May	74.3		60	78	83	68
June	72.5		82	68	67	69
July	63.7		71	61	47	70
August	69.6		66	68	66	76
September	68.6		63	77	56	69
October	71.3		72	76	64	73
November	72.0		74	77	60	57
December	62.9		58	87	52	63
Average	69.6	67.6	67.0	71.7	64.3	69.7

79th 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	83.9	83	78	81	86	78
February	87.0	75	82	91	85	89
March	87.5	96	81	93	71	91
April	89.8		77	82	94	90
May	87.0		79	90	94	79
June	87.0		90	84	81	87
July	80.1		85	80	68	81
August	85.5		88	79	84	86
September	83.7		83	91	79	82
October	85.5		84	94	78	86
November	86.7		90	92	73	78
December	84.2		81	99	78	85
Average	85.6	85.5	83.6	86.6	81.1	84.5

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	7.8	8	8	9	6	9
February	7.9	9	9	8	7	8
March	8.5	9	8	10	9	8
April	10.5		10	11	10	11
May	12.8		13	13	12	13
June	15.2		18	15	14	15
July	16.0		16	16	17	15
August	16.3		17	17	16	17
September	15.0		16	16	16	15
October	12.5		13	13	13	12
November	10.1		10	12	11	11
December	8.4		9	7	9	8
Average	11.4	8.3	12.2	12.3	11.5	11.6

85th 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	4.3	4	4	6	2	6
February	4.2	4	7	4	4	4
March	4.5	4	6	5	5	4
April	5.5		7	6	4	5
May	7.7		8	9	6	8
June	10.1		10	10	9	10
July	11.5		10	12	13	11
August	11.5		11	12	12	12
September	10.5		10	11	12	10
October	8.5		7	10	9	8
November	6.4		5	7	7	9
December	5.0		6	3	6	5
Average	7.1	4.1	7.5	8.0	7.3	7.5

63rd 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	22.0	27	31	23	17	29
February	20.2	35	30	16	15	27
March	15.8	18	22	8	19	18
April	10.2		19	15	5	5
May	10.7		12	13	11	6
June	11.0		15	17	10	11
July	12.3		20	17	6	14
August	12.3		15	8	8	12
September	17.3		20	16	20	15
October	22.8		26	20	23	22
November	19.8		19	21	21	25
December	21.8		35	16	20	21
Average	16.3	25.5	19.7	15.2	13.0	14.9

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	16.4	17	16	17	14	19
February	18.1	14	15	21	21	23
March	15.0	15	12	16	15	18
April	13.1		11	13	13	12
May	12.3		10	15	13	13
June	11.6		8	13	12	12
July	10.8		10	11	8	12
August	11.7		11	12	10	11
September	13.7		13	13	12	14
October	16.0		15	16	16	15
November	16.1		13	18	17	16
December	15.8		15	14	15	18
Average	13.7	14.7	11.7	14.3	13.0	14.4

85th 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	217°	239°	250°	009°	226°
February	231°	223°	260°	156°	244°
March	108°	151°	161°	228°	235°
April		133°	169°	018°	160°
May		232°	240°	087°	234°
June		168°	204°	246°	003°
July		229°	263°	319°	268°
August		210°	235°	319°	166°
September		192°	283°	215°	233°
October		138°	213°	227°	284°
November		041°	184°	290°	225°
December		172°	099°	169°	260°

Prevailing wind direction

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