Fukuoka climate by month
Averages and records for each calendar month at Fukuoka, Japan, from 1951 to 2026. The warmest month is August, averaging 32.1°C; the coolest is January at 9.7°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 9.7°C | 2.4°C | 20.4°C29 January 1957 | −4.6°C5 January 1970 | 69 / 75 |
| February | 10.9°C | 2.8°C | 23.8°C21 February 2004 | −5.2°C16 February 1977 | 67 / 75 |
| March | 14.3°C | 5.3°C | 26.9°C25 March 2025 | −3.7°C2 March 1994 | 68 / 75 |
| April | 19.4°C | 10.2°C | 29.9°C22 April 2004 | 0.1°C6 April 1965 | 69 / 75 |
| May | 23.6°C | 14.4°C | 32.3°C22 May 1998 | 4.8°C1 May 1965 | 68 / 75 |
| June | 26.6°C | 18.8°C | 37.3°C20 June 2004 | 10.8°C3 June 1959 | 69 / 75 |
| July | 31.0°C | 23.8°C | 38.3°C20 July 2018 | 13.8°C4 July 1966 | 69 / 75 |
| August | 32.1°C | 24.2°C | 38.1°C21 August 2018 | 15.4°C26 August 1956 | 69 / 75 |
| September | 28.1°C | 20.0°C | 36.5°C1 September 1990 | 9.8°C29 September 1965 | 66 / 75 |
| October | 23.2°C | 13.8°C | 31.9°C11 October 1999 | 4.8°C23 October 1955 | 67 / 74 |
| November | 17.8°C | 8.5°C | 27.5°C1 November 2011 | −0.6°C21 November 1953 | 66 / 74 |
| December | 12.5°C | 4.4°C | 26.0°C4 December 2018 | −3.1°C13 December 1964 | 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 66 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.