Wakamatsu climate by month
Averages and records for each calendar month at Wakamatsu, Japan, from 1954 to 2026. The warmest month is August, averaging 30.5°C; the coolest is January at 2.6°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 2.6°C | −4.3°C | 13.1°C8 January 1979 | −14.4°C14 January 1969 | 66 / 72 |
| February | 3.7°C | −4.1°C | 17.0°C22 February 2026 | −15.2°C14 February 1976 | 64 / 72 |
| March | 8.1°C | −1.3°C | 23.4°C27 March 2025 | −11.9°C2 March 1984 | 65 / 72 |
| April | 16.5°C | 4.2°C | 30.5°C22 April 1998 | −4.6°C2 April 1970 | 66 / 72 |
| May | 22.4°C | 9.7°C | 35.6°C27 May 2019 | −1.2°C4 May 1957 | 66 / 72 |
| June | 25.3°C | 15.3°C | 35.6°C29 June 2018 | 6.9°C15 June 1977 | 66 / 72 |
| July | 29.0°C | 19.5°C | 37.7°C28 July 2025 | 9.1°C2 July 1976 | 66 / 72 |
| August | 30.5°C | 20.4°C | 38.5°C23 August 2018 | 10.3°C20 August 1956 | 66 / 72 |
| September | 25.5°C | 15.7°C | 35.8°C8 September 2019 | 4.8°C23 September 2001 | 64 / 72 |
| October | 18.9°C | 8.7°C | 31.2°C6 October 2018 | −1.5°C31 October 1983 | 64 / 71 |
| November | 12.0°C | 2.8°C | 24.5°C1 November 1964 | −5.9°C29 November 1983 | 64 / 71 |
| December | 5.7°C | −1.4°C | 20.9°C1 December 1990 | −14.4°C31 December 1967 | 64 / 71 |
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 64 to 66 years each.
See what Wakamatsu is doing right now
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.