Saigo climate by month
Averages and records for each calendar month at Saigo, Japan, from 1951 to 2026. The warmest month is August, averaging 29.6°C; the coolest is January at 7.5°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 7.5°C | 0.7°C | 17.2°C1 January 1997 | −5.7°C22 January 2004 | 65 / 75 |
| February | 7.7°C | 0.5°C | 20.1°C27 February 1954 | −9.5°C11 February 1994 | 60 / 75 |
| March | 11.0°C | 2.1°C | 23.5°C27 March 2025 | −6.7°C6 March 1977 | 66 / 75 |
| April | 16.3°C | 6.8°C | 26.8°C21 April 2018 | −3.2°C1 April 1987 | 67 / 75 |
| May | 20.9°C | 11.3°C | 31.0°C26 May 2019 | 1.4°C2 May 1974 | 68 / 75 |
| June | 23.8°C | 16.2°C | 32.2°C28 June 2022 | 6.8°C2 June 1981 | 68 / 75 |
| July | 27.8°C | 21.3°C | 34.9°C22 July 2018 | 11.5°C4 July 1966 | 69 / 75 |
| August | 29.6°C | 22.4°C | 38.8°C15 August 1990 | 13.5°C20 August 1956 | 68 / 75 |
| September | 25.7°C | 18.0°C | 33.9°C1 September 2010 | 7.3°C28 September 1987 | 66 / 75 |
| October | 20.7°C | 11.9°C | 30.0°C1 October 1998 | 2.8°C31 October 1986 | 66 / 74 |
| November | 15.7°C | 7.1°C | 24.1°C2 November 2003 | −1.5°C30 November 1970 | 62 / 74 |
| December | 10.8°C | 3.2°C | 20.1°C2 December 1953 | −4.5°C27 December 1976 | 63 / 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 60 to 69 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.