Climate Nanki Shirahama Airport 2020-2024

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

Calculated from historical METAR data of Kansai International Airport (RJBB) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	93.2	94	85	97	90	97
February	92.0	83	92	98	98	92
March	90.5	76	92	90	93	93
April	91.5		85	87	91	93
May	92.3		94	90	88	94
June	91.0		90	92	92	87
July	94.4		94	96	94	89
August	95.6		94	98	89	97
September	96.0		97	98	96	95
October	92.9		95	92	98	93
November	95.1		90	95	98	96
December	96.4		97	97	97	99
Average	92.4	83.9	92.0	93.7	93.4	93.6

4th 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	98.3	99	97	100	96	99
February	97.3	97	98	100	99	95
March	96.6	87	97	97	97	97
April	96.5		95	94	98	96
May	97.1		98	95	95	98
June	97.1		98	95	98	96
July	97.5		98	99	97	94
August	97.8		96	99	94	100
September	98.0		99	99	99	97
October	97.4		99	98	100	98
November	99.0		97	98	100	100
December	98.7		99	100	98	100
Average	97.2	93.9	97.4	97.7	97.4	97.4

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	9.3	10	9	8	9	11
February	9.8	11	10	8	11	11
March	13.5	12	15	14	15	14
April	17.9		18	18	17	17
May	22.6		22	22	22	24
June	25.7		25	26	25	27
July	29.7		31	30	29	28
August	31.3		31	31	30	32
September	27.8		30	28	26	28
October	22.1		22	22	23	21
November	17.3		18	19	17	18
December	11.7		13	12	12	12
Average	18.8	10.7	20.2	20.0	19.5	20.1

46th 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	4.9	5	5	4	4	7
February	5.0	6	5	4	6	6
March	7.9	7	9	8	9	8
April	12.0		13	13	12	11
May	16.6		17	16	17	17
June	20.4		21	21	21	21
July	24.7		25	25	25	23
August	26.1		27	27	25	27
September	22.9		25	23	23	23
October	17.3		17	17	18	17
November	12.3		12	13	12	13
December	7.4		8	8	8	8
Average	13.8	6.2	15.3	15.2	14.8	15.0

52nd 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	12.2	13	14	9	14	9
February	13.0	21	15	9	7	13
March	15.7	26	10	15	17	17
April	14.2		18	16	16	11
May	16.2		20	17	27	10
June	17.3		25	15	19	17
July	16.5		12	13	15	34
August	12.1		18	7	27	1
September	15.5		10	14	21	18
October	15.1		10	14	5	15
November	9.2		16	12	8	8
December	9.9		18	12	5	5
Average	14.7	20.3	15.4	12.8	15.6	13.6

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	10.6	10	11	10	11	11
February	9.6	9	9	12	10	10
March	8.8	9	8	8	9	9
April	9.1		10	9	8	10
May	7.8		9	6	9	8
June	8.1		7	9	7	9
July	8.8		10	9	8	9
August	9.3		10	9	10	8
September	8.5		9	10	7	9
October	9.0		9	9	9	9
November	8.4		10	8	8	8
December	11.2		11	12	13	11
Average	9.1	9.6	9.3	9.1	8.9	9.2

46th 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	318°	298°	316°	295°	315°
February	006°	355°	293°	294°	317°
March	326°	320°	345°	340°	325°
April		256°	313°	308°	281°
May		265°	276°	237°	254°
June		253°	244°	254°	233°
July		229°	239°	241°	217°
August		238°	241°	216°	244°
September		259°	010°	329°	258°
October		329°	004°	353°	012°
November		308°	008°	298°	343°
December		299°	303°	296°	299°

Prevailing wind direction

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