Sendai climate by month
Averages and records for each calendar month at Sendai, Japan, from 1951 to 2026. The warmest month is August, averaging 28.2°C; the coolest is January at 5.3°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 5.3°C | −2.6°C | 17.9°C5 January 1960 | −10.2°C17 January 1967 | 69 / 75 |
| February | 6.0°C | −2.4°C | 20.9°C14 February 2016 | −8.8°C14 February 1967 | 68 / 75 |
| March | 9.4°C | 0.2°C | 24.2°C19 March 2009 | −8.5°C6 March 1970 | 68 / 75 |
| April | 15.4°C | 5.5°C | 29.9°C22 April 2018 | −2.6°C2 April 1958 | 67 / 75 |
| May | 20.1°C | 10.5°C | 33.2°C27 May 1961 | 0.4°C3 May 1951 | 69 / 75 |
| June | 22.7°C | 15.2°C | 35.1°C25 June 2022 | 7.7°C1 June 1972 | 69 / 75 |
| July | 26.4°C | 19.4°C | 36.7°C22 July 2018 | 9.0°C1 July 1976 | 65 / 75 |
| August | 28.2°C | 21.1°C | 37.3°C1 August 2018 | 13.4°C9 August 1980 | 69 / 75 |
| September | 24.5°C | 16.7°C | 36.0°C1 September 1985 | 7.6°C29 September 1960 | 65 / 75 |
| October | 19.3°C | 10.3°C | 29.9°C2 October 1998 | 1.2°C27 October 1952 | 66 / 74 |
| November | 13.7°C | 4.4°C | 24.4°C2 November 1979 | −5.0°C30 November 1970 | 66 / 74 |
| December | 8.3°C | 0.1°C | 21.8°C1 December 1990 | −8.7°C30 December 1976 | 67 / 74 |
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 69 years each.
See what Sendai 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.