August is one of the warmer months of the year in Riyadh, with average highs near 43.5°C and lows around 27.7°C (mean 35.6°C). It is about average for rainfall, averaging 0 mm of rainfall and 14% relative humidity across the period.
August is one of the warmer months of the year in Riyadh. Across 45 years of records, the warmest August in Riyadh was 1998 — when the month averaged 37.4°C — while the coldest was 1984 at 32.7°C. Typical August days reach 43.5°C with nights near 27.7°C. The long-term trend is warming, about 0.5°C per decade.
August is about average for rainfall in Riyadh, averaging 0 mm of rainfall. The wettest August on record was 1986 with 5 mm, while the driest were 2023, 2024 and 2025, among others at 0 mm.
Relative humidity in Riyadh during August averages 14%. The most humid August was 2022 at 18%, and the least humid was 1989 at 12%.
August receives about 7.2 kWh/m²/day of solar energy in Riyadh. The sunniest August was 2004 at 7.6 kWh/m²/day, and the cloudiest were 1991 and 2022 at 6.7.
Average wind speed in Riyadh during August is 2.9 m/s. The windiest Augusts were 1997 and 2018 at 3.4 m/s, while the calmest were 1992 and 2003 at 2.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 34.7°C | 35.1°C | 35.9°C | 36.1°C | 36.5°C | +1.8°C |
| Avg High | 42.7°C | 43.1°C | 43.8°C | 43.8°C | 44.1°C | +1.4°C |
| Avg Low | 26.6°C | 27.0°C | 28.0°C | 28.3°C | 29.0°C | +2.4°C |
| Avg Rain | 1 mm | 0 mm | 0 mm | 0 mm | 0 mm | -1 mm |
August temperatures in Riyadh have risen by about 2.6°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 21.9°C (1984) to a record high of 47.2°C (1998).
Rainfall in August is about average for rainfall, averaging 0 mm, with a wettest year of 5 mm.
A quieter season to visit Riyadh
If your dates are flexible, the more temperate months of November and March tend to be the most comfortable for visiting Riyadh. That said, August — with days averaging 43.5°C and nights around 27.7°C (mean 35.6°C) and low rainfall (0 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 44.1°C | 36.7°C | 29.3°C | 45.6°C | 27.1°C | 0 mm | 14% | 3.2 m/s | 6.8 |
| 2024 | 44.4°C | 37.0°C | 29.6°C | 46.9°C | 27.8°C | 0 mm | 17% | 3.3 m/s | 6.8 |
| 2023 | 44.7°C | 36.9°C | 29.2°C | 47.1°C | 27.0°C | 0 mm | 14% | 2.9 m/s | 7.1 |
| 2022 | 43.8°C | 36.6°C | 29.5°C | 47.0°C | 25.6°C | 1 mm | 18% | 2.9 m/s | 6.7 |
| 2021 | 44.1°C | 36.3°C | 28.5°C | 46.3°C | 25.2°C | 0 mm | 13% | 2.6 m/s | 7.4 |
| 2020 | 43.2°C | 35.4°C | 27.6°C | 47.2°C | 24.2°C | 0 mm | 14% | 3.3 m/s | 7.4 |
| 2019 | 43.7°C | 36.0°C | 28.3°C | 46.5°C | 25.6°C | 0 mm | 13% | 3.3 m/s | 7.5 |
| 2018 | 43.2°C | 35.2°C | 27.3°C | 44.3°C | 25.1°C | 0 mm | 13% | 3.4 m/s | 7.4 |
| 2017 | 44.5°C | 36.9°C | 29.2°C | 46.3°C | 27.0°C | 0 mm | 14% | 2.7 m/s | 7.2 |
| 2016 | 44.2°C | 36.4°C | 28.7°C | 46.1°C | 25.9°C | 0 mm | 12% | 2.8 m/s | 7.2 |
| 2015 | 44.5°C | 36.6°C | 28.7°C | 45.8°C | 26.9°C | 0 mm | 13% | 2.6 m/s | 7.2 |
| 2014 | 43.5°C | 35.7°C | 27.8°C | 45.5°C | 26.0°C | 0 mm | 14% | 3.1 m/s | 7.4 |
| 2013 | 42.8°C | 35.0°C | 27.1°C | 45.0°C | 23.8°C | 0 mm | 13% | 2.9 m/s | 7.3 |
| 2012 | 43.7°C | 35.8°C | 28.0°C | 46.0°C | 24.8°C | 0 mm | 14% | 3.2 m/s | 7.2 |
| 2011 | 43.9°C | 36.1°C | 28.2°C | 46.3°C | 25.5°C | 0 mm | 12% | 2.6 m/s | 7.3 |
| 2010 | 44.4°C | 36.8°C | 29.3°C | 45.8°C | 27.5°C | 1 mm | 14% | 2.5 m/s | 7 |
| 2009 | 43.6°C | 35.7°C | 27.7°C | 45.2°C | 25.9°C | 0 mm | 14% | 2.8 m/s | 7.1 |
| 2008 | 43.7°C | 35.7°C | 27.7°C | 45.1°C | 25.8°C | 0 mm | 14% | 2.8 m/s | 7.3 |
| 2007 | 43.9°C | 35.9°C | 28.0°C | 46.1°C | 26.2°C | 0 mm | 13% | 2.7 m/s | 7.4 |
| 2006 | 43.9°C | 36.5°C | 29.1°C | 45.3°C | 25.9°C | 0 mm | 13% | 2.7 m/s | 7.1 |
| 2005 | 43.4°C | 35.5°C | 27.7°C | 45.2°C | 24.5°C | 0 mm | 13% | 2.7 m/s | 7.5 |
| 2004 | 43.5°C | 35.5°C | 27.5°C | 45.4°C | 25.3°C | 0 mm | 13% | 2.6 m/s | 7.6 |
| 2003 | 44.3°C | 36.5°C | 28.8°C | 46.1°C | 24.9°C | 0 mm | 14% | 2.4 m/s | 7.3 |
| 2002 | 43.2°C | 35.1°C | 27.0°C | 44.9°C | 24.6°C | 0 mm | 13% | 3.1 m/s | 7.4 |
| 2001 | 44.0°C | 36.1°C | 28.2°C | 46.5°C | 24.6°C | 0 mm | 14% | 2.8 m/s | 7.4 |
| 2000 | 44.3°C | 36.5°C | 28.7°C | 45.5°C | 26.1°C | 0 mm | 14% | 2.5 m/s | 7.3 |
| 1999 | 44.1°C | 36.1°C | 28.1°C | 45.4°C | 25.8°C | 0 mm | 13% | 3.1 m/s | 7 |
| 1998 🔥 | 44.9°C | 37.4°C | 30.0°C | 47.2°C | 26.4°C | 0 mm | 17% | 2.8 m/s | 7.1 |
| 1997 | 42.0°C | 33.9°C | 25.8°C | 45.5°C | 23.2°C | 0 mm | 13% | 3.4 m/s | 7.4 |
| 1996 | 43.7°C | 35.9°C | 28.0°C | 45.1°C | 26.2°C | 0 mm | 15% | 3.1 m/s | 7.3 |
| 1995 | 43.5°C | 35.1°C | 26.8°C | 44.8°C | 25.1°C | 0 mm | 13% | 3.1 m/s | 7 |
| 1994 | 42.6°C | 34.7°C | 26.7°C | 45.5°C | 23.5°C | 0 mm | 12% | 3.2 m/s | 7.2 |
| 1993 | 43.0°C | 34.8°C | 26.6°C | 45.9°C | 23.8°C | 0 mm | 13% | 2.7 m/s | 7 |
| 1992 | 41.9°C | 34.3°C | 26.8°C | 43.9°C | 24.2°C | 0 mm | 15% | 2.4 m/s | 7 |
| 1991 | 42.6°C | 34.1°C | 25.6°C | 45.3°C | 22.1°C | 0 mm | 14% | 3.1 m/s | 6.7 |
| 1990 | 42.8°C | 34.4°C | 26.0°C | 44.2°C | 24.3°C | 0 mm | 12% | 2.6 m/s | 7 |
| 1989 | 43.0°C | 34.8°C | 26.7°C | 44.5°C | 24.1°C | 0 mm | 12% | 2.7 m/s | 7.2 |
| 1988 | 43.0°C | 35.1°C | 27.2°C | 44.8°C | 24.7°C | 0 mm | 14% | 2.9 m/s | 6.9 |
| 1987 | 43.7°C | 35.7°C | 27.7°C | 46.2°C | 23.4°C | 0 mm | 15% | 2.8 m/s | 6.8 |
| 1986 🌧️ | 43.8°C | 35.7°C | 27.6°C | 46.1°C | 25.5°C | 5 mm | 15% | 3.1 m/s | 7.3 |
| 1985 | 43.3°C | 35.1°C | 26.9°C | 45.7°C | 25.0°C | 0 mm | 12% | 2.5 m/s | 7.3 |
| 1984 ❄️ | 41.1°C | 32.7°C | 24.4°C | 43.0°C | 21.9°C | 0 mm | 12% | 2.6 m/s | 6.9 |
| 1983 | 42.3°C | 34.5°C | 26.7°C | 44.8°C | 22.6°C | 1 mm | 15% | 3 m/s | — |
| 1982 | 41.5°C | 33.5°C | 25.6°C | 44.4°C | 22.5°C | 2 mm | 12% | 2.8 m/s | — |
| 1981 | 42.9°C | 34.8°C | 26.6°C | 46.4°C | 23.5°C | 0 mm | 12% | 2.9 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 43.5°C with lows near 27.7°C (mean 35.6°C), based on 45 years of NASA POWER data.
August averages 0 mm of rainfall in Riyadh, about average for rainfall. The wettest on record was 5 mm in 1986.
The hottest August reached 47.2°C in 1998. The coldest dipped to 21.9°C in 1984.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 2.6°C. Daytime highs moved from 42.2°C to 44.2°C and overnight lows from 26°C to 29.2°C over the same span.
August is one of the warmer months of the year in Riyadh and about average for rainfall, so plan for around 43.5°C daytime highs and 27.7°C at night.
Not quite — August is the 11th coolest month in Riyadh, averaging 35.6°C.
For August in Riyadh, pack light, breathable clothing and sun protection, with typical highs of 43.5°C and lows of 27.7°C.
Relative humidity in August averages 14% — relatively dry.
Average wind speed in August is 2.9 m/s. The windiest August on record averaged 3.4 m/s (1997).
The wettest August on record was 1986 with 5 mm. On average, August sees 0 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Riyadh behaves each August, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for August specifically, along with year-by-year records and how the month has changed over the decades.
