Riyadh/King Khaled Intl climate by month
Averages and records for each calendar month at Riyadh/King Khaled Intl, Saudi Arabia, from 1984 to 2025. The warmest month is July, averaging 44.0°C; the coolest is January at 21.0°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 21.0°C | 6.8°C | 31.0°C31 January 1994 | −5.4°C17 January 2008 | 20 / 42 |
| February | 23.9°C | 8.5°C | 35.0°C8 February 2006 | −3.3°C7 February 1989 | 21 / 42 |
| March | 27.9°C | 13.1°C | 38.3°C25 March 2021 | 2.4°C4 March 1985 | 25 / 42 |
| April | 33.6°C | 18.1°C | 42.0°C29 April 2002 | 8.9°C2 April 2016 | 25 / 42 |
| May | 39.7°C | 23.4°C | 46.0°C31 May 1994 | 15.0°C1 May 2001 | 25 / 42 |
| June | 42.9°C | 25.3°C | 47.8°C26 June 1994 | 18.0°C6 June 2002 | 22 / 42 |
| July | 44.0°C | 26.6°C | 48.4°C7 July 2020 | 21.0°C29 July 2000 | 25 / 42 |
| August | 43.8°C | 26.3°C | 48.8°C2 August 2020 | 20.0°C26 August 1989 | 27 / 42 |
| September | 40.9°C | 22.9°C | 46.8°C2 September 2019 | 14.4°C26 September 1985 | 24 / 41 |
| October | 35.6°C | 18.2°C | 42.5°C1 October 2019 | 8.9°C28 October 1984 | 24 / 41 |
| November | 27.9°C | 13.0°C | 37.0°C3 November 2019 | 5.0°C27 November 1995 | 23 / 41 |
| December | 22.6°C | 7.7°C | 31.2°C10 December 1991 | −2.0°C29 December 1990 | 24 / 41 |
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 20 to 27 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.