Nagoya in September:
properly hot, frequent rain

Nagoya, Japan · Records from 2006 to 2025. Not a forecast.

Mean high29°Hottest day 38° (2025)
Mean low22°Coldest night 11° (2011)
Rain days11 days4-21 by year
Rainfall211mmDaylight 12.9 → 11.9 h
Nagoya's 12 months iBest: May and October
Trip types Sightseeing on foot Finemuggy and storm risk
Humidity74%16 muggy days
Clear days6 days10 overcast days
Mean wind7 km/hRarely windy
Sunrise / sunset (15th)05:35 / 18:01Daylight 12.9 → 11.9 h

Nagoya in September

The JMA describes September as wet because of the autumn rain front and typhoons. A typhoon can halt the Shinkansen, so avoid being stuck in Nagoya the day before an international flight.

Nagoya in September ran hot: 29°C by day and 22°C at night. By midday the shade was the best seat in town. With 11 rain days on average, a wet day was rarely more than a few days away. Year to year it swung widely, from 4 rain days in 2009 to 21 in 2018.

With 13 days above 30°C on average, most of the month felt like high summer. Not every year was typical: 2024 ran 2.7°C warmer than the mean, with highs of 32.1°C. Wet days did not mess around: about 20 mm each, the kind of rain that drives you into a doorway.

Typhoons i

12 of the last 20 years had a tropical storm pass within 300 km this month.

  • Malakas (2016), 50 km away tropical storm
  • Jelawat (2012), 61 km away tropical storm
  • Etau (2015), 70 km away tropical storm
1 2 3 4 5 26 77 88 129 610 11 12

Date by date i

‹ August September 2027 October ›
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
1-4rain on 46% of days31° 24°
5-11rain on 41% of days31° 23°
12-18rain on 35% of days30° 22°
19-25rain on 30% of days28° 20°
26-30rain on 29% of days27° 19°

0-5/206-8/209-11/2012-20/20

1-4rain on 46% of days31° 24°
5-11rain on 41% of days31° 23°
12-18rain on 35% of days30° 22°
19-25rain on 30% of days28° 20°
26-30rain on 29% of days27° 19°
Tap another date to change

2006none
2007none
2008none
2009none
2010none
201128mm
2012none
201325mm
201416mm
2015none
20163mm
20174mm
20182mm
20193mm
20209mm
20211mm
2022none
20232mm
2024none
202572mm
Holidays in September (2027)
  • September 18 to September 20 Respect for the Aged Day long weekend
  • September 23 Autumnal Equinox Day
  • September 6 Labor Day

1 Local public holiday or break (busier, pricier)1 US holidays (flights fill up)

Day by day temperature i

15°23°31°39° 1815222930

Mean high Mean low Coldest to warmest high in 20 years

Your trip dates, the past 20 years

Trip dates ~

You can also click two dates on the axis. Hover a cell to see that day's rain.
Trip rain days Month rain days
2006
3 d 8 d
2007
5 d 10 d
2008
0 d 11 d
2009
0 d 4 d
2010
1 d 8 d
2011
2 d 12 d
2012
1 d 9 d
2013
2 d 7 d
2014
4 d 7 d
2015
4 d 12 d
2016
3 d 14 d
2017
3 d 10 d
2018
4 d 21 d
2019
3 d 8 d
2020
6 d 13 d
2021
4 d 14 d
2022
3 d 13 d
2023
5 d 9 d
2024
1 d 11 d
2025
3 d 13 d
Years with rain
Tap a date to start, tap another to end. Each cell is that date in one year.
'06'07'08'09'10'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25
of 20
10
9
8
10
11
9
8
8
5
7
9
8
6
7
5
7
6
10
6
6
7
9
5
4
5
4
4
6
7
8
Rain days on trip
35001212443343643513

No rain1-9 mm10 mm or more Dates outside your trip are dimmed.

One row per year, one cell per day. 2009 had 4 rain days, 2018 had 21.

Nagoya through the year

MonthHighLowRain daysRainfall
January 10°1°5 days43mm
February 11°2°7 days76mm
March 15°5°9 days127mm
April 21°10°10 days141mm
MayGood 25°15°10 days169mm
June 28°20°11 days189mm
July 32°24°13 days234mm
August 33°25°10 days170mm
September 29°22°11 days211mm
OctoberGood 24°15°9 days148mm
November 18°9°6 days77mm
December 12°3°6 days58mm

Common questions

Does it rain a lot in Nagoya in September?

Over the past 20 years September averaged 11 rain days (1 mm or more) out of 30. Individual years ran from 4 in the driest to 21 in the wettest.

What should I wear in Nagoya in September?

Days averaged 29°C and nights 22°C. Pack a compact umbrella, T-shirts, sunscreen plus a hat, and insect repellent.

Is September a good time to visit Nagoya?

On warmth and rain days alone, Nagoya's easiest months were May and October. September ranked 6 of 12.

Is Nagoya humid in September?

Mean relative humidity was 74%, with about 16 muggy days (dew point of 20°C or more) in the month.