1,188 places · 1991–2020 normals

Japan in
August.

Day, night and rain figures are the measured August normals from each place’s qualifying NOAA station. Open a place for that month’s full answer.

Read these as long-term planning evidence, not a forecast. Compare daytime and overnight temperature together, then use rainfall and wet-day frequency to judge how often outdoor plans may need flexibility. Mountain, coastal and island conditions can differ sharply over short distances, so the linked place page and its station distance matter more than the country average. Before booking, check current local forecasts, seasonal closures, daylight, transport and any weather warnings. Data collection uses the 1991–2020 station-normal period; the published evidence was rechecked on 3 September 2026.

Use the table to shortlist places, then open each place page to compare the reporting station, distance and all twelve months. A small country table can contain only a few qualifying stations; that is a coverage limit, not evidence that other places share the same conditions.

Jan Feb Mar Apr May Jun JulAugSep Oct Nov Dec

August normals for the largest listed places in Japan
Place	Day	Night	Rain	Wet days	Comfort
TokyoTokyo	31.4°C	24.5°C	178 mm	8.1	34
YokohamaKanagawa	31.2°C	24.2°C	159 mm	8.3	37
OsakaOsaka	33.6°C	25.5°C	137 mm	7.8	31
NagoyaAichi	33.2°C	24.5°C	170 mm	10.4	27
SapporoHokkaido	26.4°C	18.7°C	136 mm	9.3	66
FukuokaFukuoka	32.5°C	25.2°C	241 mm	11.7	17
KawasakiKanagawa	31.2°C	24.2°C	159 mm	8.3	37
KobeHyōgo	32.3°C	25.7°C	108 mm	6.2	40
KyotoKyoto	33.8°C	24.4°C	157 mm	8.5	29
SaitamaSaitama	31.4°C	24.5°C	178 mm	8.1	34
HiroshimaHiroshima	32.8°C	24.8°C	142 mm	8	34
SendaiMiyagi	28.2°C	21.3°C	177 mm	12.1	47
ChibaChiba	31.2°C	24.3°C	112 mm	8.3	44
KitakyushuFukuoka	31.3°C	25.6°C	191 mm	9.3	29
SetagayaTokyo	31.4°C	24.5°C	178 mm	8.1	34
SakaiOsaka	33.6°C	25.5°C	137 mm	7.8	31
NiigataNiigata	30.5°C	23.1°C	222 mm	12.6	29
ŌtaTokyo	31.4°C	24.5°C	178 mm	8.1	34
AiharaKanagawa	31.2°C	24.2°C	159 mm	8.3	37
OkayamaOkayama	33.2°C	24.8°C	95 mm	6.5	40
SagamiharaKanagawa	31.2°C	24.2°C	159 mm	8.3	37
EdogaweTokyo	31.4°C	24.5°C	178 mm	8.1	34
AdachiTokyo	31.4°C	24.5°C	178 mm	8.1	34
ShizuokaShizuoka	31.5°C	24°C	166 mm	9.2	35
HonchōChiba	31.2°C	24.3°C	112 mm	8.3	44
KawaguchiSaitama	31.4°C	24.5°C	178 mm	8.1	34
KagoshimaKagoshima	32.7°C	25.7°C	276 mm	13	9
SuginamiIbaraki	30°C	22°C	140 mm	9	48
ItabashiTokyo	31.4°C	24.5°C	178 mm	8.1	34
HachiōjiTokyo	31.2°C	24.2°C	159 mm	8.3	37
UtsunomiyaTochigi	31.1°C	22.4°C	214 mm	13.1	29
MatsuyamaEhime	32.6°C	24.4°C	108 mm	7.9	40
MatsudoChiba	31.4°C	24.5°C	178 mm	8.1	34
IchikawaChiba	31.4°C	24.5°C	178 mm	8.1	34
HigashiosakaOsaka	33.6°C	25.5°C	137 mm	7.8	31
NishinomiyaHyōgo	32.3°C	25.7°C	108 mm	6.2	40
KurashikiOkayama	33.2°C	24.8°C	95 mm	6.5	40
KanazawaIshikawa	31.3°C	23.8°C	212 mm	10	29
AmagasakiHyōgo	33.6°C	25.5°C	137 mm	7.8	31
KatsushikaTokyo	31.4°C	24.5°C	178 mm	8.1	34
FujisawaKanagawa	31.2°C	24.2°C	159 mm	8.3	37
KashiwaChiba	31.4°C	24.5°C	178 mm	8.1	34
MachidaTokyo	31.2°C	24.2°C	159 mm	8.3	37
ToyotaAichi	33.2°C	24.5°C	170 mm	10.4	27
TakamatsuKagawa	32.9°C	24.9°C	115 mm	7.5	38
ToyamaToyama	31.5°C	22.9°C	256 mm	11	23
NagasakiNagasaki	31.9°C	25.2°C	269 mm	11.3	15
HirakataOsaka	33.6°C	25.5°C	137 mm	7.8	31
GifuGifu	33.5°C	24.5°C	192 mm	11.1	22
ToyonakaOsaka	33.6°C	25.5°C	137 mm	7.8	31
MiyazakiMiyazaki	31.7°C	24.3°C	324 mm	13.9	7
SuitaOsaka	33.6°C	25.5°C	137 mm	7.8	31
OkazakiAichi	33.2°C	24.5°C	170 mm	10.4	27
IchinomiyaAichi	33.5°C	24.5°C	192 mm	11.1	22
TakasakiGunma	31.7°C	22.7°C	245 mm	14.2	21
NaganoNagano	31.2°C	21.2°C	117 mm	9.7	48
KawagoeSaitama	32.5°C	23.1°C	154 mm	9.4	35
TakatsukiOsaka	33.6°C	25.5°C	137 mm	7.8	31
ShinjukuTokyo	31.4°C	24.5°C	178 mm	8.1	34
KoshigayaSaitama	31.4°C	24.5°C	178 mm	8.1	34
ŌtsuShiga	33.8°C	24.4°C	157 mm	8.5	29
NakanoTokyo	31.4°C	24.5°C	178 mm	8.1	34
TokorozawaSaitama	31.4°C	24.5°C	178 mm	8.1	34
MaebashiGunma	31.7°C	22.7°C	245 mm	14.2	21
KitaTokyo	31.4°C	24.5°C	178 mm	8.1	34
KochiKochi	32.1°C	24.3°C	350 mm	13.9	5
NahaOkinawa	31.7°C	26.8°C	257 mm	13.8	13
KasugaiAichi	33.2°C	24.5°C	170 mm	10.4	27
AkashiHyōgo	32.3°C	25.7°C	108 mm	6.2	40
ToshimaTokyo	31.4°C	24.5°C	178 mm	8.1	34

Japan inAugust.

Japan in
August.