Climate averages 1991–2020

Weather in Japan in August

In August, average daytime highs across the 303 cities listed in Japan range from 20.3°C in Kushiro to 31.8°C in Higashiosaka. Monthly rainfall ranges from 89 mm in Hirakata to 297 mm in Kochi.

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

City by city

August in Japan

1991–2020

Average August climate for cities in Japan, 1991–2020
City	Average highHigh / low	Average low	Rainfall mm	Rain days
Tokyo	29.5°C23.4°C	23.4°C	110	10.8
Yokohama	27.7°C23.8°C	23.8°C	102	10.6
Osaka	31.5°C24.3°C	24.3°C	110	11.6
Nagoya	30.7°C23.3°C	23.3°C	111	11.7
Sapporo	24.6°C18.5°C	18.5°C	191	14.2
Fukuoka	30.7°C24.6°C	24.6°C	171	15.1
Kawasaki	29.0°C24.1°C	24.1°C	102	10.6
Kobe	30.5°C24.9°C	24.9°C	131	13.6
Kyoto	30.9°C23.1°C	23.1°C	140	13.5
Saitama	30.1°C23.2°C	23.2°C	118	12.3
Hiroshima	30.4°C23.8°C	23.8°C	157	14.0
Sendai	26.2°C21.0°C	21.0°C	169	16.1
Chiba	29.6°C23.8°C	23.8°C	118	11.5
Kitakyushu	29.9°C24.6°C	24.6°C	142	13.5
Sakai	31.2°C24.0°C	24.0°C	100	10.3
Niigata	28.3°C22.7°C	22.7°C	159	12.9
Hamamatsu	30.2°C24.0°C	24.0°C	157	16.2
Ōta	29.2°C23.8°C	23.8°C	102	10.6
Kumamoto	30.4°C24.0°C	24.0°C	135	13.0
Aihara	28.4°C22.2°C	22.2°C	160	16.3
Okayama	31.0°C24.2°C	24.2°C	108	10.3
Sagamihara	28.5°C22.2°C	22.2°C	160	16.3
Shizuoka	28.6°C23.5°C	23.5°C	191	16.3
Kawaguchi	30.2°C23.4°C	23.4°C	110	10.8
Kagoshima	30.4°C25.3°C	25.3°C	167	17.2
Hachiōji	28.6°C22.2°C	22.2°C	205	21.0
Himeji	29.0°C24.1°C	24.1°C	114	10.9
Utsunomiya	28.2°C21.0°C	21.0°C	128	13.7
Matsuyama	30.7°C24.9°C	24.9°C	156	15.8
Matsudo	30.0°C23.4°C	23.4°C	112	11.8
Higashiosaka	31.8°C24.2°C	24.2°C	110	11.6
Nishinomiya	31.1°C24.7°C	24.7°C	131	13.6
Kurashiki	30.7°C24.6°C	24.6°C	95	9.2
Ōita	30.2°C24.2°C	24.2°C	184	15.7
Fukuyama	31.0°C24.4°C	24.4°C	107	10.8
Kanazawa	29.8°C22.2°C	22.2°C	145	13.0
Katsushika	29.8°C23.7°C	23.7°C	110	10.8
Fujisawa	27.4°C23.8°C	23.8°C	125	10.6
Kashiwa	29.9°C23.2°C	23.2°C	112	11.8
Machida	27.6°C22.7°C	22.7°C	125	13.2
Toyota	30.4°C23.1°C	23.1°C	174	17.3
Shinagawa	29.7°C23.3°C	23.3°C	194	17.2
Takamatsu	29.3°C24.6°C	24.6°C	121	11.2
Toyama	28.7°C21.0°C	21.0°C	178	15.6
Yokosuka	27.4°C24.3°C	24.3°C	107	9.8
Nagasaki	29.1°C25.6°C	25.6°C	185	13.7
Hirakata	31.3°C23.9°C	23.9°C	89	9.0
Gifu	30.0°C22.4°C	22.4°C	228	15.7
Toyonaka	31.2°C24.0°C	24.0°C	110	11.6
Miyazaki	29.4°C24.9°C	24.9°C	209	15.6
Okazaki	30.5°C23.5°C	23.5°C	174	17.3
Ichinomiya	30.3°C22.8°C	22.8°C	181	15.4
Toyohashi	30.2°C23.6°C	23.6°C	144	15.3
Minato	29.4°C24.3°C	24.3°C	114	11.3
Takasaki	27.8°C20.9°C	20.9°C	225	22.0
Nagano	28.1°C19.9°C	19.9°C	169	19.5
Nara-shi	31.2°C23.6°C	23.6°C	89	9.0
Iwaki	27.5°C22.3°C	22.3°C	126	11.8
Kawagoe	29.4°C22.6°C	22.6°C	128	12.3
Koshigaya	30.1°C23.2°C	23.2°C	118	12.3
Ōtsu	30.5°C22.7°C	22.7°C	140	13.5
Tokorozawa	29.0°C22.4°C	22.4°C	142	15.4
Asahikawa	24.1°C16.5°C	16.5°C	171	14.9
Maebashi	28.3°C21.3°C	21.3°C	157	18.1
Kochi	29.6°C23.6°C	23.6°C	297	20.6
Kōriyama	27.8°C20.6°C	20.6°C	130	14.6
Naha	29.2°C27.3°C	27.3°C	178	14.8
Kasugai	30.9°C23.4°C	23.4°C	111	11.7
Akita	26.5°C21.1°C	21.1°C	203	14.8
Yokkaichi	30.4°C23.6°C	23.6°C	155	15.2
Akashi	29.5°C24.7°C	24.7°C	117	11.7
Kurume	30.8°C23.5°C	23.5°C	175	14.3
Aomori	26.7°C19.7°C	19.7°C	169	15.5
Fukushima	27.9°C20.7°C	20.7°C	163	16.5
Morioka	25.9°C18.8°C	18.8°C	137	14.6
Ichihara	29.5°C24.1°C	24.1°C	118	11.5
Hakodate	23.7°C19.7°C	19.7°C	206	14.8
Tsu	30.3°C24.1°C	24.1°C	179	15.8
Yao	31.4°C23.9°C	23.9°C	100	10.3
Kakogawachō-honmachi	29.1°C24.3°C	24.3°C	114	10.9
Mito	28.3°C22.5°C	22.5°C	111	12.0
Tokushima	29.6°C24.6°C	24.6°C	203	15.9
Nagaoka	29.8°C21.6°C	21.6°C	146	14.1
Fuchū	28.9°C22.8°C	22.8°C	142	15.4
Fukui-shi	28.6°C23.5°C	23.5°C	166	13.2
Hiratsuka	27.5°C23.4°C	23.4°C	154	13.5
Sōka	30.1°C23.5°C	23.5°C	110	10.8
Yamagata	26.9°C19.5°C	19.5°C	146	14.8
Fuji, Japan	29.4°C23.5°C	23.5°C	196	18.6
Sasebo	30.1°C25.2°C	25.2°C	178	14.7
Chigasaki	27.5°C23.7°C	23.7°C	125	10.6
Tsukuba	30.0°C23.0°C	23.0°C	123	13.5
Matsumoto	28.3°C20.0°C	20.0°C	155	15.0
Hachinohe	26.3°C19.6°C	19.6°C	132	13.0
Saga	30.4°C23.9°C	23.9°C	181	14.6
Kasukabe	30.1°C23.1°C	23.1°C	118	12.3
Ageo	29.8°C22.9°C	22.9°C	128	12.3
Takarazuka	31.3°C24.4°C	24.4°C	131	13.6
Ōta, Japan	29.3°C22.1°C	22.1°C	152	16.0
Minamirinkan	28.0°C22.7°C	22.7°C	125	13.2
Atsugi	27.6°C23.3°C	23.3°C	160	16.3
Kure	28.4°C24.2°C	24.2°C	120	10.8
Isesaki	28.3°C21.4°C	21.4°C	152	16.0
Kishiwada	31.0°C23.5°C	23.5°C	107	10.1
Matsue	28.1°C24.9°C	24.9°C	123	11.4
Nagareyama	30.0°C23.2°C	23.2°C	112	11.8
Yachiyo	29.6°C23.5°C	23.5°C	112	11.8
Higashihiroshima	29.6°C23.1°C	23.1°C	132	12.5
Suzuka	30.1°C23.8°C	23.8°C	155	15.2
Kumagaya	29.8°C22.9°C	22.9°C	171	16.4
Yamaguchi	30.2°C23.4°C	23.4°C	167	14.2
Uji	31.0°C23.3°C	23.3°C	140	13.5
Hino	28.7°C22.4°C	22.4°C	142	15.4
Kofu	29.5°C21.8°C	21.8°C	139	16.8
Numazu	29.1°C23.7°C	23.7°C	165	14.2
Jōetsu	29.3°C22.2°C	22.2°C	122	12.1
Odawara	29.4°C23.9°C	23.9°C	154	13.5
Anjō	30.4°C23.4°C	23.4°C	110	12.4
Tottori-shi	29.2°C24.1°C	24.1°C	147	13.8
Narashino	29.7°C23.6°C	23.6°C	112	11.8
Tomakomai	22.5°C18.2°C	18.2°C	197	14.5
Hitachi	27.8°C22.9°C	22.9°C	111	11.4
Sakura	29.8°C23.6°C	23.6°C	114	11.9
Ube	29.7°C24.7°C	24.7°C	141	11.9
Izumo	28.7°C24.6°C	24.6°C	149	13.8
Urayasu	29.7°C23.7°C	23.7°C	112	11.8
Imabari	29.7°C25.0°C	25.0°C	142	13.5
Takaoka	29.6°C22.2°C	22.2°C	199	15.7
Nishio	29.7°C24.0°C	24.0°C	108	10.9
Hirosaki	26.7°C19.1°C	19.1°C	176	16.0
Kushiro	20.3°C16.3°C	16.3°C	147	12.1
Oyama	29.5°C22.3°C	22.3°C	161	16.3
Iwata	29.7°C23.9°C	23.9°C	157	16.2
Obihiro	23.7°C16.5°C	16.5°C	168	13.7
Niiza	29.9°C23.2°C	23.2°C	142	15.4
Hadano	28.6°C23.4°C	23.4°C	154	13.5
Ōgaki	30.3°C23.0°C	23.0°C	190	16.8
Miyakonojō	30.1°C24.2°C	24.2°C	199	19.8
Sayama	29.1°C22.3°C	22.3°C	142	15.4
Matsusaka	30.1°C23.9°C	23.9°C	194	17.5
Tochigi	29.3°C22.2°C	22.2°C	207	19.6
Ueda	28.7°C20.2°C	20.2°C	134	16.1
Hitachi-Naka	27.4°C22.6°C	22.6°C	131	14.0
Kariya	30.4°C23.8°C	23.8°C	110	12.4
Kukichūō	30.1°C22.9°C	22.9°C	118	12.3
Musashino	29.2°C23.1°C	23.1°C	142	15.4
Shūnan	28.3°C22.6°C	22.6°C	147	12.7
Komaki	30.5°C22.8°C	22.8°C	111	11.7
Yonago	28.9°C24.0°C	24.0°C	116	11.3
Tama	28.1°C22.5°C	22.5°C	142	15.4
Iruma	28.7°C22.2°C	22.2°C	205	21.0
Fujieda	28.3°C23.6°C	23.6°C	171	15.7
Kakamigahara	30.0°C22.2°C	22.2°C	228	15.7
Tsuchiura	29.9°C23.2°C	23.2°C	119	12.9
Kusatsu	30.8°C23.1°C	23.1°C	103	11.1
Okinawa	28.4°C26.5°C	26.5°C	178	14.8
Ishinomaki	25.6°C21.8°C	21.8°C	131	12.3
Kuwana	30.3°C23.2°C	23.2°C	137	14.0
Koga	29.8°C22.6°C	22.6°C	161	16.3
Kisarazu	29.0°C24.1°C	24.1°C	118	11.5
Isahaya	29.1°C24.8°C	24.8°C	185	13.7
Ebetsu	24.1°C17.6°C	17.6°C	171	13.2
Ōme	29.0°C22.5°C	22.5°C	205	21.0
Narita	30.2°C23.3°C	23.3°C	114	11.9
Tondabayashichō	31.1°C23.4°C	23.4°C	100	10.3
Sandachō	30.1°C23.5°C	23.5°C	134	13.9
Fujinomiya	28.5°C22.4°C	22.4°C	254	23.7
Ōmuta	30.2°C24.2°C	24.2°C	159	12.7
Onomichi	30.5°C24.0°C	24.0°C	107	10.8
Iwakuni	29.8°C24.4°C	24.4°C	169	14.4
Ōsaki	27.2°C20.4°C	20.4°C	165	15.5
Seto	30.5°C22.9°C	22.9°C	111	11.7
Iizuka	31.3°C24.1°C	24.1°C	142	13.5
Tsuruoka	27.3°C22.0°C	22.0°C	203	15.7
Uruma	29.0°C27.1°C	27.1°C	175	14.4
Kashihara-shi	31.0°C23.4°C	23.4°C	126	13.6
Ise	29.4°C24.2°C	24.2°C	144	13.6
Kirishima	31.1°C24.7°C	24.7°C	174	18.3
Honmachi	30.8°C24.6°C	24.6°C	162	16.1
Niihama	30.6°C24.8°C	24.8°C	151	13.8
Beppu	30.7°C24.5°C	24.5°C	184	15.7
Ikoma	30.8°C23.1°C	23.1°C	89	9.0
Nobeoka	29.8°C24.0°C	24.0°C	242	18.0
Kitami	23.6°C16.3°C	16.3°C	134	12.5
Aizu-Wakamatsu	27.8°C20.6°C	20.6°C	132	13.9
Kakegawa	29.3°C23.6°C	23.6°C	174	17.0
Handa	29.7°C24.1°C	24.1°C	110	12.4
Sano	29.5°C22.4°C	22.4°C	171	16.4
Karatsu	30.4°C25.1°C	25.1°C	162	13.7
Hōfu	30.3°C24.3°C	24.3°C	135	11.7
Kōnosu	29.8°C22.8°C	22.8°C	128	12.3
Nasushiobara	27.8°C20.6°C	20.6°C	190	18.4
Otaru	24.4°C18.8°C	18.8°C	163	14.1
Ichinoseki	26.9°C19.8°C	19.8°C	142	14.7
Hatsukaichi	30.9°C24.3°C	24.3°C	169	14.4
Tōkai	30.2°C23.6°C	23.6°C	110	12.4
Hikone	29.7°C23.1°C	23.1°C	163	15.5
Nagahama	29.7°C23.1°C	23.1°C	173	15.7
Ōshū	27.0°C19.9°C	19.9°C	153	15.2
Youkaichi	30.1°C22.9°C	22.9°C	148	14.9

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