Climate averages 1991–2020

Fuji, Japan weather
in September.

A warm, very wet month: the 3rd warmest and the wettest of the year.

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

Average high 26.5°C Daytime mean, September

Average low 20.7°C Night-time mean, September

Rainfall 279 mm 17 days with ≥1 mm

Daylight 12 h Sunrise to sunset, per day

September is a warm month in Fuji, Japan: daytime highs average 26.5°C and nights cool to about 20.7°C. By daytime temperature it is the 3rd warmest of the 12 months.

Expect about 279 mm of rain on roughly 17 days, which makes September a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 26 min on an average September day.

The nearest other city in this atlas is Fujinomiya (8 km away). In September its highs average 25.6°C, 0.9°C cooler than Fuji, Japan, with 337 mm of rain.

Among the 303 cities listed in Japan, Fuji, Japan ranks joint 101st of 303 for the warmest September highs and 297th of 303 for the driest September (rainfall, lowest first). The mean September high of those 303 cities is 25.7°C; Fuji, Japan is 0.8°C warmer than that mean.

From September to October, average highs fall by 4.8°C to 21.7°C, and monthly rainfall falls from 279 mm to 265 mm.

The annual picture

September in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Fuji, Japan climate table

1991–2020

Monthly climate averages for Fuji, Japan, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	9.5°C2.2°C	2.2°C	101	11.1	10.110 h
February	10.2°C2.2°C	2.2°C	117	12.1	10.911 h
March	13.4°C4.9°C	4.9°C	202	16.6	11.912 h
April	18.0°C9.5°C	9.5°C	194	14.9	13.113 h
May	22.0°C14.2°C	14.2°C	194	14.9	14.014 h
June	24.7°C18.4°C	18.4°C	257	17.9	14.514 h
July	28.3°C22.4°C	22.4°C	274	19.4	14.314 h
August	29.4°C23.5°C	23.5°C	196	18.6	13.513 h
September, selected	26.5°C20.7°C	20.7°C	279	16.5	12.412 h
October	21.7°C15.4°C	15.4°C	265	15.9	11.311 h
November	17.0°C9.8°C	9.8°C	148	12.7	10.410 h
December	12.1°C5.0°C	5.0°C	101	10.9	9.810 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

September in nearby cities

Distance from Fuji

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Fuji) is explained once on the Fuji, Japan year overview and on the Sources, method and limits page.