Climate Gjögur Airport 2020-2024

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

Calculated from historical METAR data of Ísafjörður Airport (BIIS) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	57.7	50	51	63	56	38
February	55.6	58	38	42	70	51
March	61.9	52	60	65	58	47
April	71.7		60	76	69	71
May	69.7		56	62	81	82
June	65.7		53	87	65	69
July	66.2		57	67	69	55
August	69.2		87	64	72	63
September	63.7		51	76	65	58
October	62.2		63	63	44	57
November	61.6		67	54	54	65
December	64.5		68	88	73	50
Average	63.7	53.3	60.2	65.9	65.7	60.0

8th best VFR conditions of Iceland

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	87.9	89	87	80	93	78
February	88.1	85	86	75	91	79
March	91.0	89	94	83	90	82
April	96.2		99	99	95	93
May	98.1		98	98	100	100
June	96.7		99	100	84	98
July	95.6		96	94	96	96
August	96.0		95	99	88	99
September	98.1		99	99	93	99
October	98.9		98	99	100	100
November	96.2		97	99	96	97
December	92.6		94	98	99	89
Average	94.3	87.8	95.7	94.1	93.9	93.0

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	0.8	1	0	1	-1	2
February	1.6	0	3	-1	3	0
March	1.4	1	-1	2	3	1
April	5.0		5	5	5	5
May	8.1		8	7	6	10
June	10.3		12	10	10	11
July	12.0		11	12	14	10
August	12.5		16	14	14	12
September	9.4		10	11	10	7
October	5.8		5	6	5	7
November	3.5		3	8	2	3
December	1.1		-1	-1	3	1
Average	5.4	0.7	5.9	6.4	6.1	5.7

11th highest temperature of Iceland

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	-2.1	-1	-3	-2	-3	-2
February	-2.9	-4	0	-3	0	-2
March	-2.7	-1	-4	-1	0	-2
April	1.6		2	2	1	2
May	4.1		4	4	3	5
June	7.5		8	7	8	8
July	9.1		8	9	11	9
August	8.4		9	8	11	9
September	6.2		6	7	7	5
October	3.2		3	3	3	4
November	0.7		0	3	0	0
December	-2.7		-4	-2	0	-1
Average	2.4	-3.9	2.5	3.0	3.3	2.9

3rd lowest temperature of Iceland

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	35.4	26	36	46	34	47
February	31.4	23	46	36	26	43
March	24.9	24	21	35	36	36
April	18.7		16	8	27	21
May	19.0		26	24	6	18
June	17.6		30	9	20	24
July	13.6		10	9	15	18
August	14.8		4	25	16	16
September	26.2		30	11	39	40
October	28.6		28	29	33	36
November	24.1		13	23	35	35
December	28.1		21	12	17	44
Average	22.7	24.0	21.4	21.6	24.5	29.4

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	11.5	9	12	12	11	16
February	10.1	9	10	12	7	13
March	10.6	12	11	12	11	14
April	8.0		8	7	8	10
May	9.2		9	9	10	9
June	9.3		10	9	8	8
July	8.3		9	7	8	9
August	7.2		6	8	5	7
September	8.6		11	6	11	10
October	9.2		8	9	13	11
November	9.0		8	12	10	11
December	9.7		7	8	8	14
Average	9.2	10.6	8.8	8.8	9.2	10.5

11th highest wind speed of Iceland

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	277°	015°	219°	023°	300°
February	032°	203°	023°	064°	021°
March	038°	028°	187°	329°	335°
April		030°	046°	235°	292°
May		229°	036°	024°	249°
June		219°	003°	031°	023°
July		042°	046°	113°	031°
August		041°	042°	054°	026°
September		021°	038°	001°	028°
October		023°	027°	029°	020°
November		020°	027°	304°	233°
December		029°	042°	028°	029°

Prevailing wind direction

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