Thessaloniki Intl climate by month
Averages and records for each calendar month at Thessaloniki Intl, Greece, from 1964 to 2025. The warmest month is July, averaging 31.3°C; the coolest is January at 9.1°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 9.1°C | −0.6°C | 22.0°C23 January 1981 | −12.8°C15 January 1968 | 19 / 60 |
| February | 11.6°C | 1.2°C | 22.4°C27 February 1995 | −9.6°C3 February 1991 | 11 / 60 |
| March | 14.6°C | 3.9°C | 31.4°C27 March 2001 | −7.0°C3 March 1977 | 24 / 59 |
| April | 19.2°C | 7.1°C | 31.2°C10 April 1985 | −1.0°C17 April 1977 | 20 / 58 |
| May | 24.1°C | 11.9°C | 36.0°C26 May 1990 | 2.8°C1 May 1965 | 21 / 58 |
| June | 29.2°C | 15.6°C | 41.4°C27 June 2007 | 6.0°C12 June 1983 | 14 / 58 |
| July | 31.3°C | 18.6°C | 44.0°C25 July 2007 | 10.0°C2 July 1964 | 20 / 58 |
| August | 30.7°C | 17.8°C | 40.4°C12 August 1994 | 7.8°C31 August 1965 | 18 / 59 |
| September | 27.0°C | 14.4°C | 36.0°C16 September 1987 | 3.0°C30 September 1977 | 21 / 58 |
| October | 21.6°C | 10.7°C | 32.0°C1 October 2012 | −1.0°C28 October 1974 | 17 / 58 |
| November | 15.3°C | 7.2°C | 27.0°C5 November 1996 | −6.0°C27 November 1975 | 12 / 58 |
| December | 11.2°C | 1.5°C | 22.6°C26 December 1995 | −9.2°C20 December 1988 | 16 / 58 |
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 11 to 24 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.