Climate averages 1991–2020

Weather in Japan in September

In September, average daytime highs across the 303 cities listed in Japan range from 18.6°C in Kushiro to 28.7°C in Kirishima. Monthly rainfall ranges from 122 mm in Kitami to 337 mm in Fujinomiya.

Long-term climate patterns, not a forecast for a particular trip.

City by city

September in Japan

1991–2020

Average September climate for cities in Japan, 1991–2020
City	Average highHigh / low	Average low	Rainfall mm	Rain days
Tokyo	25.9°C20.0°C	20.0°C	180	13.6
Yokohama	25.0°C20.9°C	20.9°C	175	13.4
Osaka	27.6°C20.4°C	20.4°C	163	11.9
Nagoya	27.1°C19.5°C	19.5°C	186	12.1
Sapporo	20.9°C14.7°C	14.7°C	155	14.7
Fukuoka	27.1°C20.9°C	20.9°C	179	12.8
Kawasaki	25.9°C20.9°C	20.9°C	175	13.4
Kobe	27.1°C21.2°C	21.2°C	191	12.8
Kyoto	26.8°C19.4°C	19.4°C	187	12.9
Saitama	26.3°C19.6°C	19.6°C	171	13.7
Hiroshima	26.9°C19.9°C	19.9°C	188	12.6
Sendai	23.3°C17.7°C	17.7°C	167	14.3
Chiba	26.1°C20.9°C	20.9°C	207	14.7
Kitakyushu	26.2°C21.2°C	21.2°C	162	13.0
Sakai	27.3°C20.2°C	20.2°C	158	11.8
Niigata	24.7°C19.2°C	19.2°C	146	14.2
Hamamatsu	27.1°C20.9°C	20.9°C	247	15.8
Ōta	25.9°C20.6°C	20.6°C	175	13.4
Kumamoto	27.5°C20.8°C	20.8°C	156	11.7
Aihara	24.9°C18.8°C	18.8°C	229	16.1
Okayama	27.2°C20.2°C	20.2°C	167	10.8
Sagamihara	25.0°C18.9°C	18.9°C	229	16.1
Shizuoka	25.8°C20.9°C	20.9°C	277	16.5
Kawaguchi	26.3°C19.9°C	19.9°C	180	13.6
Kagoshima	28.2°C22.9°C	22.9°C	202	14.6
Hachiōji	25.0°C18.7°C	18.7°C	249	18.2
Himeji	26.0°C20.6°C	20.6°C	202	12.6
Utsunomiya	24.5°C17.4°C	17.4°C	165	14.1
Matsuyama	27.3°C21.5°C	21.5°C	187	13.6
Matsudo	26.3°C20.1°C	20.1°C	175	14.2
Higashiosaka	27.8°C20.3°C	20.3°C	163	11.9
Nishinomiya	27.4°C20.9°C	20.9°C	191	12.8
Kurashiki	27.1°C20.9°C	20.9°C	153	10.6
Ōita	26.6°C21.0°C	21.0°C	201	14.2
Fukuyama	27.3°C20.6°C	20.6°C	145	10.7
Kanazawa	25.5°C17.9°C	17.9°C	197	14.4
Katsushika	26.2°C20.4°C	20.4°C	180	13.6
Fujisawa	24.9°C21.1°C	21.1°C	208	14.1
Kashiwa	26.2°C19.9°C	19.9°C	175	14.2
Machida	24.5°C19.5°C	19.5°C	193	14.2
Toyota	27.1°C19.5°C	19.5°C	239	14.9
Shinagawa	26.4°C19.8°C	19.8°C	232	15.0
Takamatsu	26.0°C21.3°C	21.3°C	184	12.5
Toyama	24.3°C17.1°C	17.1°C	211	15.6
Yokosuka	25.1°C21.7°C	21.7°C	185	13.2
Nagasaki	26.7°C22.8°C	22.8°C	202	11.9
Hirakata	27.4°C20.0°C	20.0°C	140	10.7
Gifu	26.4°C18.6°C	18.6°C	291	14.6
Toyonaka	27.3°C20.1°C	20.1°C	163	11.9
Miyazaki	27.0°C22.5°C	22.5°C	268	15.4
Okazaki	27.2°C20.0°C	20.0°C	239	14.9
Ichinomiya	26.7°C19.1°C	19.1°C	248	14.0
Toyohashi	27.0°C20.4°C	20.4°C	236	14.6
Minato	26.5°C21.0°C	21.0°C	181	13.0
Takasaki	24.1°C17.5°C	17.5°C	257	19.8
Nagano	23.9°C15.9°C	15.9°C	182	17.0
Nara-shi	27.3°C19.7°C	19.7°C	140	10.7
Iwaki	24.5°C19.4°C	19.4°C	192	14.1
Kawagoe	25.6°C19.0°C	19.0°C	186	14.1
Koshigaya	26.3°C19.8°C	19.8°C	171	13.7
Ōtsu	26.3°C18.9°C	18.9°C	187	12.9
Tokorozawa	25.2°C18.9°C	18.9°C	204	14.9
Asahikawa	19.8°C11.6°C	11.6°C	142	14.4
Maebashi	24.5°C17.9°C	17.9°C	201	17.3
Kochi	26.8°C20.6°C	20.6°C	323	17.1
Kōriyama	23.7°C16.8°C	16.8°C	151	13.2
Naha	28.3°C26.4°C	26.4°C	199	14.2
Kasugai	27.3°C19.6°C	19.6°C	186	12.1
Akita	23.0°C17.5°C	17.5°C	190	15.0
Yokkaichi	26.8°C20.1°C	20.1°C	225	14.1
Akashi	26.4°C21.2°C	21.2°C	194	12.7
Kurume	27.5°C19.6°C	19.6°C	180	12.0
Aomori	22.9°C15.8°C	15.8°C	145	13.0
Fukushima	24.1°C16.9°C	16.9°C	169	14.2
Morioka	21.9°C14.8°C	14.8°C	137	12.4
Ichihara	26.1°C21.3°C	21.3°C	207	14.7
Hakodate	21.3°C16.9°C	16.9°C	185	12.8
Tsu	26.8°C20.8°C	20.8°C	253	15.5
Yao	27.4°C20.0°C	20.0°C	158	11.8
Kakogawachō-honmachi	26.1°C20.8°C	20.8°C	202	12.6
Mito	25.1°C19.6°C	19.6°C	176	14.1
Tokushima	26.3°C21.5°C	21.5°C	286	15.5
Nagaoka	25.6°C17.7°C	17.7°C	144	14.0
Fuchū	25.3°C19.4°C	19.4°C	204	14.9
Fukui-shi	25.0°C19.9°C	19.9°C	222	14.2
Hiratsuka	24.8°C20.6°C	20.6°C	241	15.5
Sōka	26.3°C20.0°C	20.0°C	180	13.6
Yamagata	22.8°C15.5°C	15.5°C	125	13.0
Fuji, Japan	26.5°C20.7°C	20.7°C	279	16.5
Sasebo	27.0°C22.0°C	22.0°C	186	12.3
Chigasaki	24.9°C20.9°C	20.9°C	208	14.1
Tsukuba	26.1°C19.7°C	19.7°C	167	13.9
Matsumoto	24.3°C16.2°C	16.2°C	199	15.8
Hachinohe	22.9°C16.0°C	16.0°C	127	11.2
Saga	27.1°C20.2°C	20.2°C	189	12.3
Kasukabe	26.3°C19.6°C	19.6°C	171	13.7
Ageo	26.0°C19.3°C	19.3°C	186	14.1
Takarazuka	27.4°C20.5°C	20.5°C	191	12.8
Ōta, Japan	25.4°C18.7°C	18.7°C	199	16.1
Minamirinkan	24.8°C19.5°C	19.5°C	193	14.2
Atsugi	24.8°C20.4°C	20.4°C	229	16.1
Kure	25.5°C21.1°C	21.1°C	163	11.1
Isesaki	24.4°C17.9°C	17.9°C	199	16.1
Kishiwada	27.0°C19.7°C	19.7°C	176	12.3
Matsue	24.7°C21.5°C	21.5°C	184	13.3
Nagareyama	26.3°C19.8°C	19.8°C	175	14.2
Yachiyo	26.0°C20.5°C	20.5°C	175	14.2
Higashihiroshima	26.2°C19.3°C	19.3°C	169	11.5
Suzuka	26.7°C20.4°C	20.4°C	225	14.1
Kumagaya	25.9°C19.3°C	19.3°C	221	16.7
Yamaguchi	26.7°C19.6°C	19.6°C	178	12.4
Uji	26.9°C19.4°C	19.4°C	187	12.9
Hino	25.1°C19.0°C	19.0°C	204	14.9
Kofu	25.7°C18.2°C	18.2°C	185	14.6
Numazu	26.1°C20.9°C	20.9°C	243	14.5
Jōetsu	25.2°C18.4°C	18.4°C	162	14.1
Odawara	26.1°C20.8°C	20.8°C	241	15.5
Anjō	27.1°C19.9°C	19.9°C	192	12.2
Tottori-shi	25.1°C20.4°C	20.4°C	223	15.1
Narashino	26.1°C20.5°C	20.5°C	175	14.2
Tomakomai	20.1°C15.1°C	15.1°C	177	15.0
Hitachi	24.7°C20.1°C	20.1°C	174	14.1
Sakura	26.2°C20.6°C	20.6°C	175	14.3
Ube	26.4°C21.4°C	21.4°C	161	11.4
Izumo	25.0°C20.9°C	20.9°C	190	13.6
Urayasu	26.2°C20.5°C	20.5°C	175	14.2
Imabari	26.5°C21.9°C	21.9°C	196	13.2
Takaoka	25.0°C18.2°C	18.2°C	236	16.1
Nishio	26.6°C20.7°C	20.7°C	214	13.0
Hirosaki	22.7°C14.9°C	14.9°C	154	14.2
Kushiro	18.6°C14.0°C	14.0°C	160	11.5
Oyama	25.7°C18.9°C	18.9°C	206	16.2
Iwata	26.7°C21.0°C	21.0°C	247	15.8
Obihiro	20.4°C12.3°C	12.3°C	165	12.8
Niiza	26.0°C19.6°C	19.6°C	204	14.9
Hadano	25.4°C20.3°C	20.3°C	241	15.5
Ōgaki	26.6°C19.3°C	19.3°C	246	14.5
Miyakonojō	27.6°C21.6°C	21.6°C	233	16.4
Sayama	25.3°C18.8°C	18.8°C	204	14.9
Matsusaka	26.7°C20.6°C	20.6°C	272	16.4
Tochigi	25.5°C18.8°C	18.8°C	239	17.8
Ueda	24.4°C16.2°C	16.2°C	161	15.3
Hitachi-Naka	24.6°C19.9°C	19.9°C	179	14.7
Kariya	27.1°C20.3°C	20.3°C	192	12.2
Kukichūō	26.2°C19.4°C	19.4°C	171	13.7
Musashino	25.6°C19.7°C	19.7°C	204	14.9
Shūnan	25.1°C19.0°C	19.0°C	169	11.5
Komaki	26.9°C19.0°C	19.0°C	186	12.1
Yonago	25.0°C20.3°C	20.3°C	188	13.3
Tama	24.7°C19.2°C	19.2°C	204	14.9
Iruma	25.0°C18.6°C	18.6°C	249	18.2
Fujieda	25.6°C21.1°C	21.1°C	265	16.7
Kakamigahara	26.4°C18.4°C	18.4°C	291	14.6
Tsuchiura	26.1°C20.0°C	20.0°C	168	14.2
Kusatsu	26.7°C19.4°C	19.4°C	153	11.5
Okinawa	27.5°C25.6°C	25.6°C	199	14.2
Ishinomaki	23.1°C19.2°C	19.2°C	151	12.6
Kuwana	26.8°C19.6°C	19.6°C	222	13.7
Koga	26.0°C19.2°C	19.2°C	206	16.2
Kisarazu	26.0°C21.3°C	21.3°C	207	14.7
Isahaya	26.5°C21.9°C	21.9°C	202	11.9
Ebetsu	20.5°C13.5°C	13.5°C	138	13.9
Ōme	25.3°C19.0°C	19.0°C	249	18.2
Narita	26.3°C20.2°C	20.2°C	175	14.3
Tondabayashichō	27.2°C19.5°C	19.5°C	158	11.8
Sandachō	26.3°C19.7°C	19.7°C	196	12.9
Fujinomiya	25.6°C19.6°C	19.6°C	337	19.8
Ōmuta	27.3°C21.0°C	21.0°C	165	10.7
Onomichi	26.9°C20.3°C	20.3°C	145	10.7
Iwakuni	26.5°C20.9°C	20.9°C	185	11.7
Ōsaki	23.6°C16.7°C	16.7°C	168	14.0
Seto	26.9°C19.2°C	19.2°C	186	12.1
Iizuka	27.4°C20.3°C	20.3°C	162	13.0
Tsuruoka	23.8°C18.5°C	18.5°C	180	15.5
Uruma	28.0°C26.2°C	26.2°C	188	13.4
Kashihara-shi	27.1°C19.6°C	19.6°C	173	13.2
Ise	26.3°C21.3°C	21.3°C	247	15.3
Kirishima	28.7°C21.9°C	21.9°C	202	15.0
Honmachi	27.9°C21.5°C	21.5°C	174	13.2
Niihama	27.1°C21.4°C	21.4°C	216	14.1
Beppu	27.0°C21.3°C	21.3°C	201	14.2
Ikoma	26.8°C19.2°C	19.2°C	140	10.7
Nobeoka	27.0°C21.1°C	21.1°C	280	15.2
Kitami	20.0°C12.3°C	12.3°C	122	12.0
Aizu-Wakamatsu	23.5°C16.9°C	16.9°C	144	13.0
Kakegawa	26.3°C20.9°C	20.9°C	257	17.0
Handa	26.6°C20.8°C	20.8°C	192	12.2
Sano	25.7°C18.9°C	18.9°C	221	16.7
Karatsu	27.0°C21.8°C	21.8°C	179	12.6
Hōfu	27.1°C20.7°C	20.7°C	156	10.8
Kōnosu	25.9°C19.2°C	19.2°C	186	14.1
Nasushiobara	23.8°C17.0°C	17.0°C	227	16.4
Otaru	20.8°C15.3°C	15.3°C	149	13.9
Ichinoseki	23.3°C16.1°C	16.1°C	149	12.9
Hatsukaichi	27.3°C20.5°C	20.5°C	185	11.7
Tōkai	26.8°C20.1°C	20.1°C	192	12.2
Hikone	25.8°C19.5°C	19.5°C	212	13.9
Nagahama	25.8°C19.5°C	19.5°C	222	14.5
Ōshū	23.2°C16.1°C	16.1°C	151	13.5
Youkaichi	26.2°C19.2°C	19.2°C	202	13.9

Showing the 200 most populous of 303 cities. A rain day is a local calendar day with at least 1 mm of precipitation.