Climate Hakodate Airport 2020-2024

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

Calculated from historical METAR data of Hakodate Airport (RJCH) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	66.1	59	40	63	68	86
February	68.6	84	60	52	62	75
March	80.4	71	78	80	86	81
April	83.9		73	93	90	86
May	76.7		79	83	81	65
June	66.4		64	52	69	70
July	54.1		66	45	55	48
August	62.4		70	62	64	67
September	84.2		77	91	91	62
October	91.4		92	89	96	89
November	85.1		64	95	84	95
December	64.6		64	48	66	67
Average	72.9	70.9	68.4	70.0	75.6	73.2

65th best VFR conditions of Japan

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	82.4	76	64	76	85	99
February	85.0	95	83	77	81	88
March	93.1	83	96	93	97	97
April	95.4		90	100	97	96
May	91.4		94	91	92	91
June	87.1		88	72	90	89
July	80.8		84	74	84	79
August	88.6		90	81	92	93
September	95.6		95	95	99	92
October	97.7		99	93	100	96
November	94.3		81	98	96	100
December	81.6		82	64	91	82
Average	88.8	84.4	86.8	84.2	91.8	91.3

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	0.9	3	-1	1	0	2
February	1.3	3	2	1	1	2
March	6.9	5	10	6	8	7
April	11.4		12	12	12	10
May	15.8		16	17	16	15
June	18.9		21	18	19	20
July	23.2		25	24	25	22
August	24.7		28	25	24	25
September	22.9		25	23	22	23
October	17.0		18	17	17	17
November	10.4		11	12	12	10
December	2.1		3	1	4	1
Average	11.9	3.8	14.1	13.4	13.3	12.8

69th highest temperature of Japan

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	-6.6	-3	-7	-6	-7	-4
February	-5.3	-4	-6	-5	-4	-4
March	0.4	-3	1	0	2	2
April	5.9		7	6	6	5
May	10.9		11	11	11	11
June	14.7		17	14	15	15
July	19.4		21	20	21	18
August	20.3		24	20	20	21
September	17.1		19	17	17	18
October	9.9		10	9	10	10
November	3.1		4	3	5	4
December	-4.6		-3	-4	-3	-4
Average	6.1	-4.6	8.3	7.4	7.7	7.6

11th lowest temperature of Japan

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	45.7	45	64	48	51	33
February	42.2	21	44	64	51	36
March	21.9	28	14	23	21	25
April	16.2		15	2	15	26
May	16.8		14	18	19	21
June	14.7		13	19	12	16
July	17.3		12	24	15	24
August	22.9		10	32	23	23
September	14.6		18	7	9	32
October	13.7		11	16	9	19
November	23.6		41	15	26	15
December	48.0		40	63	50	48
Average	25.1	31.7	24.5	26.7	24.1	25.9

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	9.8	10	9	9	11	9
February	10.4	9	9	12	12	10
March	11.0	11	11	11	10	11
April	11.0		12	11	11	12
May	9.6		10	10	10	9
June	8.5		8	9	9	8
July	8.1		8	8	10	8
August	9.3		9	9	10	9
September	9.5		8	9	10	11
October	9.6		9	10	9	10
November	10.6		12	9	11	11
December	9.8		10	10	10	10
Average	9.8	10.1	9.6	9.7	10.0	9.7

69th highest wind speed of Japan

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	299°	300°	291°	285°	299°
February	290°	288°	282°	281°	289°
March	281°	249°	262°	263°	266°
April		252°	239°	253°	244°
May		206°	211°	203°	192°
June		160°	167°	147°	150°
July		206°	123°	120°	124°
August		142°	168°	124°	178°
September		157°	156°	128°	115°
October		270°	241°	264°	252°
November		270°	274°	266°	274°
December		292°	295°	286°	290°

Prevailing wind direction

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