Climate Nagasaki Airport 2020-2024

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

Calculated from historical METAR data of Fukuoka Airport (RJFF) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	90.9	83	86	95	90	94
February	90.6	69	89	98	94	94
March	88.3	74	90	92	91	89
April	89.6		88	87	93	96
May	90.1		85	92	90	87
June	91.1		89	95	93	89
July	89.1		88	95	96	81
August	93.5		88	97	88	95
September	91.5		92	88	96	84
October	95.6		98	99	95	95
November	96.0		93	92	97	94
December	96.4		88	100	99	100
Average	90.2	75.5	89.2	93.8	93.3	91.2

3rd 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	97.6	95	96	98	98	100
February	97.8	92	100	100	98	99
March	96.4	89	99	98	96	97
April	96.8		94	98	98	100
May	97.0		95	98	97	96
June	98.2		99	100	100	98
July	96.6		97	99	100	96
August	97.7		98	98	95	99
September	98.1		99	95	99	98
October	98.9		100	100	99	99
November	99.1		99	97	100	99
December	99.4		99	100	99	100
Average	97.2	91.8	97.7	98.2	98.1	98.1

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	10.1	11	10	10	10	12
February	11.5	13	12	9	14	13
March	15.7	14	18	16	17	16
April	19.9		21	20	21	17
May	24.4		24	24	24	24
June	27.5		27	28	28	29
July	31.1		32	32	32	28
August	32.5		33	33	31	34
September	28.4		30	29	29	27
October	23.1		23	23	25	23
November	18.3		18	20	18	19
December	11.8		13	11	12	11
Average	20.2	12.5	21.8	21.6	21.5	21.0

20th 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	3.5	4	3	3	3	6
February	4.5	6	5	3	6	5
March	8.1	8	9	9	9	8
April	11.9		13	12	12	10
May	16.6		17	16	17	16
June	20.8		21	22	21	22
July	25.0		26	26	25	23
August	25.6		26	26	25	26
September	21.8		23	22	22	21
October	15.7		15	16	16	15
November	10.1		11	11	10	11
December	5.2		6	5	5	4
Average	13.1	6.2	14.6	14.5	14.2	13.9

42nd 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	20.9	33	30	12	25	23
February	17.6	35	16	11	14	15
March	15.2	29	12	12	12	15
April	15.0		19	20	8	12
May	14.5		20	12	18	15
June	15.0		20	17	16	14
July	18.0		19	14	11	35
August	14.9		15	13	33	7
September	17.7		19	21	14	20
October	10.7		8	8	6	7
November	9.5		13	9	16	9
December	17.3		31	16	16	9
Average	17.1	32.0	18.4	13.8	15.8	15.1

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	8.4	9	10	8	9	8
February	8.8	8	8	10	10	9
March	8.9	9	9	9	9	9
April	9.6		10	9	10	11
May	8.7		9	8	9	8
June	8.5		8	10	8	8
July	8.6		9	9	9	9
August	9.0		9	9	8	10
September	8.2		8	9	8	8
October	8.0		8	8	8	9
November	7.7		9	7	8	8
December	8.6		9	9	9	8
Average	8.6	8.5	8.9	8.8	8.7	8.8

20th 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	295°	294°	314°	312°	301°
February	011°	348°	315°	275°	296°
March	318°	319°	305°	321°	314°
April		308°	332°	340°	314°
May		323°	307°	258°	309°
June		267°	201°	307°	293°
July		182°	260°	116°	190°
August		094°	249°	170°	193°
September		338°	359°	021°	002°
October		340°	353°	352°	358°
November		276°	320°	291°	308°
December		269°	313°	284°	313°

Prevailing wind direction

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