Tokyo climate by month
Averages and records for each calendar month at Tokyo, Japan, from 1951 to 2025. The warmest month is August, averaging 31.1°C; the coolest is January at 9.7°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 9.7°C | 0.8°C | 22.6°C27 January 1969 | −6.3°C28 January 1954 | 67 / 74 |
| February | 10.3°C | 1.4°C | 24.5°C11 February 1962 | −4.8°C20 February 1952 | 66 / 74 |
| March | 13.4°C | 4.3°C | 25.3°C10 March 2013 | −4.4°C4 March 1958 | 66 / 74 |
| April | 18.7°C | 9.9°C | 28.9°C22 April 2004 | 0.3°C3 April 1952 | 65 / 74 |
| May | 23.1°C | 14.5°C | 32.6°C26 May 2019 | 4.0°C3 May 1953 | 67 / 74 |
| June | 25.6°C | 18.3°C | 36.4°C30 June 2022 | 10.3°C7 June 1963 | 67 / 74 |
| July | 29.3°C | 22.2°C | 39.5°C20 July 2004 | 14.0°C2 July 1976 | 66 / 74 |
| August | 31.1°C | 23.8°C | 39.1°C3 August 1994 | 15.9°C28 August 1953 | 65 / 74 |
| September | 27.1°C | 20.0°C | 38.1°C3 September 1984 | 11.1°C28 September 1951 | 65 / 73 |
| October | 21.7°C | 14.1°C | 32.6°C1 October 1979 | 5.9°C29 October 1958 | 66 / 73 |
| November | 16.8°C | 8.6°C | 26.7°C1 November 1977 | −0.7°C29 November 1951 | 66 / 73 |
| December | 12.3°C | 3.5°C | 24.8°C5 December 2004 | −4.2°C29 December 1952 | 66 / 73 |
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 65 to 67 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.