Porto Santo Isl Arpt climate by month
Averages and records for each calendar month at Porto Santo Isl Arpt, Portugal, from 1973 to 2025. The warmest month is August, averaging 25.3°C; the coolest is January at 18.1°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 18.1°C | 13.5°C | 21.5°C5 January 1996 | 7.0°C7 January 1985 | 28 / 53 |
| February | 18.3°C | 13.4°C | 22.6°C7 February 1990 | 6.0°C14 February 1981 | 23 / 53 |
| March | 18.7°C | 13.6°C | 26.0°C4 March 1987 | 7.0°C15 March 2011 | 31 / 53 |
| April | 19.4°C | 14.1°C | 27.2°C26 April 2008 | 7.5°C21 April 1984 | 37 / 53 |
| May | 20.8°C | 15.3°C | 28.3°C23 May 2003 | 10.6°C4 May 1993 | 41 / 53 |
| June | 22.6°C | 17.3°C | 30.5°C14 June 1983 | 12.0°C13 June 1977 | 39 / 53 |
| July | 24.1°C | 19.0°C | 30.6°C29 July 2009 | 14.0°C1 July 1984 | 36 / 53 |
| August | 25.3°C | 20.1°C | 32.0°C29 August 2010 | 14.4°C16 August 1986 | 42 / 53 |
| September | 25.2°C | 19.8°C | 32.2°C14 September 1987 | 13.7°C8 September 1995 | 35 / 52 |
| October | 23.4°C | 18.4°C | 31.6°C22 October 2014 | 12.4°C24 October 1989 | 33 / 52 |
| November | 21.0°C | 16.0°C | 29.2°C7 November 1985 | 9.0°C14 November 1975 | 26 / 52 |
| December | 19.3°C | 14.9°C | 28.0°C4 December 1979 | 6.0°C24 December 1975 | 23 / 52 |
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 23 to 42 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.