yearsofweather

Nagasaki in June:
warm,

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

Mean high27°Hottest day 31.4° (2025)
Mean low20°Coldest night 15.7° (2010)
Rain days13 days8-20 by year
Rainfall333mmDaylight 14.2 → 14.3 h
Nagasaki's 12 months iBest: May and October
Trip types Sightseeing on foot Finemild, frequent rain and muggy
Humidity87%17 muggy days
Clear days2 days18 overcast days
Mean wind12 km/hRarely windy
Sunrise / sunset (15th)05:12 / 19:29Daylight 14.2 → 14.3 h

Nagasaki in June

The rainy season is in full swing and this has the most wet days of the year. Wet slopes are slippery, so sneakers with a firm sole are best. Building the plan around covered shopping streets and indoor exhibits keeps rain from derailing it.

Highs of 27°C and lows of 20°C: short sleeves by day, with warm nights. Rain fell on 13 days of the month on average. A visitor in 2009 met 8 rain days; one in 2015 met 20. The average of 13 hid that gap.

Each rainy day brought about 25 mm, closer to downpours than drizzle.

Typhoons i No tropical storm passed within 300 km in this month over the last 20 years. Typhoons: May and July to October

Date by date i

‹ May June 2027 July ›
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
1-5rain on 30% of days26° 19°
6-12rain on 32% of days26° 19°
13-19rain on 44% of days27° 20°
20-26rain on 57% of days27° 21°
27-30rain on 64% of days28° 22°

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

1-5rain on 30% of days26° 19°
6-12rain on 32% of days26° 19°
13-19rain on 44% of days27° 20°
20-26rain on 57% of days27° 21°
27-30rain on 64% of days28° 22°
Tap another date to change

200618mm
2007none
2008none
200931mm
201044mm
201111mm
201222mm
201364mm
2014none
201540mm
201614mm
201714mm
201818mm
201947mm
202030mm
2021none
2022none
202360mm
202439mm
2025none
Holidays in June (2027)
  • June 18 Juneteenth (observed)
  • June 19 Juneteenth National Independence Day

1 US holidays (flights fill up)

Day by day temperature i

17°22°28°33° 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
1 d 13 d
2007
0 d 12 d
2008
2 d 16 d
2009
1 d 8 d
2010
0 d 17 d
2011
4 d 17 d
2012
2 d 13 d
2013
3 d 15 d
2014
1 d 11 d
2015
4 d 20 d
2016
1 d 17 d
2017
2 d 9 d
2018
3 d 11 d
2019
2 d 11 d
2020
3 d 16 d
2021
2 d 8 d
2022
3 d 11 d
2023
4 d 12 d
2024
2 d 15 d
2025
5 d 15 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
4
8
8
4
6
5
3
8
4
9
11
5
7
9
12
7
7
12
7
10
12
11
11
12
13
11
11
13
13
14
Rain days on trip
10210423141232323425

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

One row per year, one cell per day. 2009 had 8 rain days, 2015 had 20.

Nagasaki through the year

MonthHighLowRain daysRainfall
January 11°4°8 days58mm
February 12°5°10 days98mm
March 16°8°9 days123mm
April 20°12°9 days143mm
MayGood 24°16°9 days173mm
June 27°20°13 days333mm
July 31°25°11 days292mm
August 32°26°11 days274mm
September 29°22°10 days176mm
OctoberGood 24°17°6 days91mm
November 19°11°8 days98mm
December 13°6°9 days74mm

Common questions

Does it rain a lot in Nagasaki in June?

Over the past 20 years June averaged 13 rain days (1 mm or more) out of 30. Individual years ran from 8 in the driest to 20 in the wettest.

What should I wear in Nagasaki in June?

Days averaged 27°C and nights 20°C. Pack an umbrella, sandals that can get wet, T-shirts, a light layer for the evenings, sunscreen plus a hat, and insect repellent.

Is June a good time to visit Nagasaki?

On warmth and rain days alone, Nagasaki's easiest months were May and October. June ranked 5 of 12.

Is Nagasaki humid in June?

Mean relative humidity was 87%, with about 17 muggy days (dew point of 20°C or more) in the month.