Matsuyama in July:
very hot, frequent rain

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

Mean high32°Hottest day 35.9° (2024)
Mean low24°Coldest night 18.5° (2020)
Rain days10 days3-16 by year
Rainfall241mmDaylight 14.4 → 13.9 h
Matsuyama's 12 months iBest: May and October
Trip types Sightseeing on foot Poorhot, muggy and storm risk
Humidity80%31 muggy days
Clear days4 days16 overcast days
Mean wind7 km/hRarely windy
Sunrise / sunset (15th)05:09 / 19:21Daylight 14.4 → 13.9 h

Matsuyama in July

Another very wet month after June. Once the rains lift, hot and humid summer begins right away. Keep an umbrella in your bag until mid July, and mix in indoor stops such as the castle or an onsen.

Highs averaged 32°C and lows stayed at 24°C, so the heat hung on long after sunset. About 10 days a month saw rain, enough that a wet-weather plan was worth having. Year to year it swung widely, from 3 rain days in 2025 to 16 in 2020.

With 23 days above 30°C on average, most of the month felt like high summer. Not every year was typical: 2025 ran 2.1°C warmer than the mean, with highs of 33.6°C. Wet days did not mess around: about 25 mm each, the kind of rain that drives you into a doorway.

Typhoons i

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

  • Jongdari (2018), 71 km away tropical storm
  • Nanmadol (2017), 89 km away tropical storm
  • Nangka (2015), 97 km away typhoon strength
1 2 3 4 15 26 77 108 129 510 11 12

Date by date i

‹ June July 2027 August ›
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
1-3rain on 48% of days30° 23°
4-10rain on 48% of days30° 23°
11-17rain on 35% of days31° 24°
18-24rain on 19% of days32° 24°
25-31rain on 17% of days33° 25°

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

1-3rain on 48% of days30° 23°
4-10rain on 48% of days30° 23°
11-17rain on 35% of days31° 24°
18-24rain on 19% of days32° 24°
25-31rain on 17% of days33° 25°
Tap another date to change

2006none
20078mm
2008none
2009none
201038mm
20117mm
201223mm
201312mm
201483mm
2015none
20163mm
2017none
201830mm
201994mm
202066mm
20211mm
20229mm
20234mm
2024none
2025none
Holidays in July (2027)
  • July 19 Marine Day
  • July 3 to July 5 Independence Day weekend

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

Day by day temperature i

21°26°32°37° 1815222931

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
4 d 10 d
2007
4 d 12 d
2008
1 d 5 d
2009
3 d 13 d
2010
2 d 10 d
2011
3 d 10 d
2012
4 d 11 d
2013
2 d 6 d
2014
5 d 8 d
2015
4 d 10 d
2016
3 d 8 d
2017
6 d 10 d
2018
4 d 6 d
2019
4 d 14 d
2020
6 d 16 d
2021
3 d 13 d
2022
4 d 13 d
2023
4 d 10 d
2024
0 d 8 d
2025
1 d 3 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
9
7
13
10
9
8
12
12
10
6
10
7
8
10
4
5
5
4
5
5
5
3
2
3
5
4
4
4
2
3
2
Rain days on trip
44132342543644634401

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

One row per year, one cell per day. 2025 had 3 rain days, 2020 had 16.

Matsuyama through the year

MonthHighLowRain daysRainfall
January 10°3°7 days49mm
February 11°3°8 days72mm
March 15°6°9 days110mm
April 20°11°9 days111mm
MayGood 24°15°9 days137mm
June 27°20°12 days242mm
July 32°24°10 days241mm
August 33°25°8 days111mm
September 30°22°9 days144mm
OctoberGood 24°15°7 days109mm
November 18°10°7 days80mm
December 13°5°8 days60mm

Common questions

Does it rain a lot in Matsuyama in July?

Over the past 20 years July averaged 10 rain days (1 mm or more) out of 31. Individual years ran from 3 in the driest to 16 in the wettest.

What should I wear in Matsuyama in July?

Days averaged 32°C and nights 24°C. Pack a compact umbrella, T-shirts, sunscreen plus a hat, and insect repellent.

Is July a good time to visit Matsuyama?

On warmth and rain days alone, Matsuyama's easiest months were May and October. July ranked 8 of 12.

Is Matsuyama humid in July?

Mean relative humidity was 80%, with about 31 muggy days (dew point of 20°C or more) in the month.