Matsuyama climate by month
Averages and records for each calendar month at Matsuyama, Japan, from 1951 to 2026. The warmest month is August, averaging 32.1°C; the coolest is January at 9.6°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 9.6°C | 1.6°C | 20.3°C27 January 1969 | −5.0°C26 January 1963 | 70 / 76 |
| February | 10.4°C | 1.6°C | 24.5°C27 February 1954 | −5.3°C16 February 1977 | 69 / 76 |
| March | 13.8°C | 4.2°C | 27.5°C20 March 2010 | −3.5°C1 March 1984 | 69 / 76 |
| April | 19.3°C | 9.4°C | 33.9°C28 April 1998 | −1.4°C2 April 1972 | 70 / 76 |
| May | 23.5°C | 13.7°C | 33.3°C16 May 1994 | 4.3°C3 May 1957 | 70 / 76 |
| June | 26.6°C | 18.2°C | 35.6°C24 June 2011 | 10.2°C1 June 1978 | 70 / 76 |
| July | 30.9°C | 22.9°C | 37.0°C22 July 1994 | 15.5°C4 July 1966 | 70 / 76 |
| August | 32.1°C | 23.5°C | 37.4°C7 August 2018 | 16.4°C20 August 1956 | 69 / 76 |
| September | 28.4°C | 19.8°C | 35.8°C1 September 2010 | 9.6°C29 September 1965 | 67 / 76 |
| October | 23.2°C | 13.5°C | 33.3°C3 October 2019 | 4.5°C31 October 1986 | 68 / 75 |
| November | 17.7°C | 8.2°C | 28.0°C1 November 1977 | 0.2°C17 November 1956 | 68 / 75 |
| December | 12.4°C | 3.7°C | 25.2°C4 December 2018 | −3.1°C18 December 1985 | 68 / 75 |
Years shows the number behind the average high, then the number holding a record for that month. They differ because a year contributes an average only when the month has at least 25 days of readings, while a single reading is enough to set a record. The average low is withheld on the same 25-day rule and is counted separately again; it is shown as a dash where the archive cannot support it. Across the twelve months here the averages rest on 67 to 70 years each.
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Every figure on this page is computed from NOAA GHCN-Daily observations stored per station, per year, per month. Nothing is modelled, interpolated or estimated, and a month the archive never covered is left out rather than filled in. A station appears here only once all twelve months carry an average from at least 10 years. See how this is built.