10-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Partly cloudy
14°
Feels like 14°
Wind↑ ESE 2 km/h
Humidity 54 %
Evening
Clear sky
11°
Feels like 11°
Wind↑ ESE 6 km/h
Humidity 72 %
11-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Clear sky
14°
Feels like 14°
Wind↑ NE 6 km/h
Humidity 62 %
Evening
Clear sky
11°
Feels like 11°
Wind↑ E 9 km/h
Humidity 74 %
12-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Clear sky
14°
Feels like 14°
Wind↑ ENE 6 km/h
Humidity 68 %
Evening
Mainly clear
12°
Feels like 12°
Wind↑ SE 9 km/h
Humidity 78 %
13-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Partly cloudy
15°
Feels like 15°
Wind↑ ESE 5 km/h
Humidity 56 %
Evening
Mainly clear
13°
Feels like 13°
Wind↑ ESE 8 km/h
Humidity 77 %
Matsuyama forecast in charts · next 7 days
The week ahead: highs and lows
≈ A week close to the usual temperatures
Highs Lows Usual for the season (1991–2020 average)
Hourly detail
Temperature (°C) Rain (mm) Wind (km/h)
Matsuyama climate: what a normal year looks like
The hottest stretch is August, when afternoons average 30 °C; the coldest is January, when nights average 2 °C. Between those two months the average temperature changes by 22 °C.
A normal year brings roughly 1,770 mm of rain — more than 84% of the towns of 20,000+ people we compared it with.
From 14 h 24 min of daylight in late June to 9 h 54 min in late December.
Afternoons climb to 25 °C only from July to September, with a typical peak of 30 °C in August.
Forecast highs for the coming week average 18 °C, 4 °C cooler than a normal October (22 °C).
30-year averages (1991–2020)
Month
Typical high
Typical low
Rainfall
Jan
8 °C
2 °C
78 mm
Feb
9 °C
3 °C
87 mm
Mar
12 °C
6 °C
122 mm
Apr
17 °C
10 °C
137 mm
May
22 °C
15 °C
155 mm
Jun
24 °C
19 °C
279 mm
Jul
29 °C
23 °C
241 mm
Aug
30 °C
24 °C
165 mm
Sep
27 °C
21 °C
197 mm
Oct
22 °C
15 °C
142 mm
Nov
17 °C
10 °C
86 mm
Dec
11 °C
4 °C
88 mm
Whole year
19 °C
13 °C
1,770 mm
Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 33.86° N, 132.71° E, 1991–2020. ERA5 averages over a 0.25° grid (about 25 km): hills, a coastline or the heat of the city itself can shift local values by a degree or two.
Air you breathe in Matsuyama: pollution and pollen
1/6
Good
European Air Quality Index (EAQI), from Copernicus CAMS
PM2.59µg/m³
PM1012µg/m³
Copernicus CAMS model, updated several times a day.
Rain radar around Matsuyama
Rain observed over the last two hours by official weather radars around Matsuyama, followed by the radar forecast for the next hour where the weather service provides one.
Rain radarLast two hours, then forecast where available · drag the timeline
No open weather radar covers Matsuyama yet: the map shows our hour-by-hour rain forecast (ICON, GFS).
Moon over Matsuyama
Waning gibbous
79 % illuminated · 19.3 days
Rise 15:33 Set 05:51
Sat31/1069%
Sun1/1159%
Mon2/1149%Last quarter
Tue3/1138%
Wed4/1128%
Thu5/1119%
Fri6/1112%
Sat7/116%
Sun8/112%
Mon9/110%
Tue10/111%New moon
Wed11/113%
Moonrise and moonset in local time (Asia/Tokyo); phase and lit fraction from a synodic calculation.
Look up a past day in Matsuyama
Curious about the weather in Matsuyama on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.
Matsuyama weather at a glance
This page gathers everything about the weather in Matsuyama, Ehime: conditions now, the forecast for each part of the day and the trend for the coming week. At the moment the sky is “rain showers”, it is 16 °C (feels like 16 °C) and the wind blows at 11 km/h.
Expected range today: 14 °C to 19 °C and around 20 mm of rain. The forecast comes from the AtmoAtlas engine, which combines ECMWF-AIFS, NOAA GFS and DWD ICON, adjusts cloud cover with METAR reports and uses convective energy (CAPE) to flag storms.
Use the Matsuyama forecast in your own website or app: one JSON call returns weather, air quality, tides and sun and moon times. The free key needs no card.
