September is one of the warmer months of the year in Dawmat al Jandal, with average highs near 37.9°C and lows around 21.2°C (mean 29.6°C). It is about average for rainfall, averaging 0 mm of rainfall and 19% relative humidity across the period.
September is one of the warmer months of the year in Dawmat al Jandal. Across 45 years of records, the warmest September in Dawmat al Jandal was 2020 — when the month averaged 32.1°C — while the coldest was 1992 at 27.8°C. Typical September days reach 37.9°C with nights near 21.2°C. The long-term trend is warming, about 0.4°C per decade.
September is about average for rainfall in Dawmat al Jandal, averaging 0 mm of rainfall. The wettest September on record was 1994 with 7 mm, while the driest were 2023, 2024 and 2025, among others at 0 mm.
Relative humidity in Dawmat al Jandal during September averages 19%. The most humid September was 2024 at 25%, and the least humid was 2004 at 15%.
September receives about 6.6 kWh/m²/day of solar energy in Dawmat al Jandal. The sunniest Septembers were 2003, 2004 and 2005 at 6.9 kWh/m²/day, and the cloudiest was 1994 at 6.
Average wind speed in Dawmat al Jandal during September is 2.5 m/s. The windiest Septembers were 1987, 2007 and 2019 at 2.8 m/s, while the calmest were 1984, 1989 and 2020 at 2.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 29.3°C | 28.8°C | 29.2°C | 30.4°C | 30.5°C | +1.2°C |
| Avg High | 37.9°C | 37.2°C | 37.6°C | 38.6°C | 38.7°C | +0.8°C |
| Avg Low | 20.6°C | 20.5°C | 20.8°C | 22.2°C | 22.3°C | +1.7°C |
| Avg Rain | 0 mm | 1 mm | 0 mm | 0 mm | 0 mm | 0 mm |
September temperatures in Dawmat al Jandal have risen by about 1.1°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 13.1°C (1992) to a record high of 44.4°C (2008).
Rainfall in September is about average for rainfall, averaging 0 mm, with a wettest year of 7 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.3°C per decade while lows rose 0.6°C per decade, narrowing the gap between day and night.
A good time to visit Dawmat al Jandal
September is a good time to visit Dawmat al Jandal, with days averaging 37.9°C and nights around 21.2°C (mean 29.6°C, warmer than Dawmat al Jandal's yearly average) and low rainfall. April and October are marginally more temperate, but September still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 37.7°C | 29.5°C | 21.2°C | 41.8°C | 17.8°C | 0 mm | 20% | 2.7 m/s | 6.7 |
| 2024 | 37.8°C | 29.9°C | 22.0°C | 41.8°C | 18.7°C | 0 mm | 25% | 2.6 m/s | 6.7 |
| 2023 | 39.8°C | 31.4°C | 23.0°C | 43.4°C | 20.2°C | 0 mm | 18% | 2.5 m/s | 6.6 |
| 2022 | 38.8°C | 30.6°C | 22.5°C | 43.4°C | 16.1°C | 0 mm | 19% | 2.3 m/s | 6.7 |
| 2021 | 37.6°C | 29.6°C | 21.7°C | 43.9°C | 17.8°C | 0 mm | 21% | 2.5 m/s | 6.6 |
| 2020 🔥 | 40.5°C | 32.1°C | 23.7°C | 42.8°C | 20.0°C | 0 mm | 15% | 2.2 m/s | 6.6 |
| 2019 | 39.5°C | 31.1°C | 22.7°C | 44.1°C | 20.5°C | 0 mm | 20% | 2.8 m/s | 6.7 |
| 2018 | 40.1°C | 31.9°C | 23.7°C | 44.1°C | 20.8°C | 0 mm | 19% | 2.5 m/s | 6.3 |
| 2017 | 40.1°C | 31.8°C | 23.4°C | 43.1°C | 19.4°C | 0 mm | 16% | 2.7 m/s | 6.4 |
| 2016 | 37.6°C | 29.4°C | 21.2°C | 43.1°C | 15.3°C | 0 mm | 20% | 2.4 m/s | 6.7 |
| 2015 | 39.4°C | 31.4°C | 23.5°C | 42.9°C | 20.7°C | 0 mm | 19% | 2.3 m/s | 6.3 |
| 2014 | 37.5°C | 29.4°C | 21.4°C | 41.6°C | 17.8°C | 0 mm | 23% | 2.5 m/s | 6.7 |
| 2013 | 36.7°C | 28.7°C | 20.6°C | 42.0°C | 15.1°C | 0 mm | 22% | 2.7 m/s | 6.7 |
| 2012 | 38.5°C | 30.1°C | 21.7°C | 40.5°C | 20.5°C | 0 mm | 18% | 2.5 m/s | 6.7 |
| 2011 | 37.3°C | 29.1°C | 20.9°C | 40.3°C | 18.1°C | 0 mm | 21% | 2.5 m/s | 6.7 |
| 2010 | 39.3°C | 30.9°C | 22.6°C | 41.9°C | 19.9°C | 0 mm | 19% | 2.6 m/s | 6.5 |
| 2009 | 36.3°C | 28.2°C | 20.2°C | 40.6°C | 16.5°C | 0 mm | 24% | 2.6 m/s | 6.8 |
| 2008 | 38.2°C | 30.2°C | 22.1°C | 44.4°C | 17.3°C | 0 mm | 21% | 2.4 m/s | 6.5 |
| 2007 | 38.4°C | 29.8°C | 21.3°C | 42.9°C | 17.6°C | 0 mm | 19% | 2.8 m/s | 6.6 |
| 2006 | 38.2°C | 29.9°C | 21.5°C | 41.4°C | 17.8°C | 0 mm | 18% | 2.3 m/s | 6.7 |
| 2005 | 36.5°C | 28.4°C | 20.3°C | 41.4°C | 16.3°C | 0 mm | 21% | 2.7 m/s | 6.9 |
| 2004 | 38.5°C | 29.7°C | 20.8°C | 43.2°C | 17.5°C | 0 mm | 15% | 2.4 m/s | 6.9 |
| 2003 | 37.5°C | 28.9°C | 20.4°C | 41.1°C | 17.1°C | 0 mm | 19% | 2.4 m/s | 6.9 |
| 2002 | 38.2°C | 29.5°C | 20.9°C | 40.7°C | 18.6°C | 0 mm | 19% | 2.4 m/s | 6.7 |
| 2001 | 37.8°C | 29.2°C | 20.6°C | 42.4°C | 18.5°C | 0 mm | 18% | 2.6 m/s | 6.8 |
| 2000 | 36.8°C | 28.6°C | 20.4°C | 39.9°C | 18.0°C | 0 mm | 19% | 2.4 m/s | 6.7 |
| 1999 | 38.0°C | 29.6°C | 21.2°C | 42.8°C | 16.4°C | 0 mm | 20% | 2.6 m/s | 6.5 |
| 1998 | 38.2°C | 29.9°C | 21.7°C | 42.8°C | 18.1°C | 0 mm | 20% | 2.6 m/s | 6.8 |
| 1997 | 36.6°C | 28.1°C | 19.6°C | 39.9°C | 17.1°C | 0 mm | 19% | 2.6 m/s | 6.8 |
| 1996 | 36.9°C | 28.7°C | 20.5°C | 42.4°C | 17.1°C | 0 mm | 19% | 2.4 m/s | 6.3 |
| 1995 | 36.3°C | 28.3°C | 20.3°C | 40.8°C | 16.0°C | 0 mm | 21% | 2.5 m/s | 6.7 |
| 1994 🌧️ | 36.8°C | 29.2°C | 21.7°C | 40.2°C | 19.4°C | 7 mm | 22% | 2.3 m/s | 6 |
| 1993 | 37.9°C | 29.2°C | 20.5°C | 40.9°C | 16.7°C | 0 mm | 16% | 2.3 m/s | 6.6 |
| 1992 ❄️ | 36.0°C | 27.8°C | 19.7°C | 40.0°C | 13.1°C | 0 mm | 21% | 2.7 m/s | 6.3 |
| 1991 | 37.4°C | 28.6°C | 19.8°C | 40.9°C | 16.6°C | 0 mm | 19% | 2.3 m/s | 6.1 |
| 1990 | 37.7°C | 28.7°C | 19.8°C | 40.6°C | 16.8°C | 0 mm | 18% | 2.5 m/s | 6.3 |
| 1989 | 36.9°C | 28.5°C | 20.1°C | 41.6°C | 16.5°C | 0 mm | 19% | 2.2 m/s | 6.4 |
| 1988 | 38.1°C | 29.3°C | 20.5°C | 41.5°C | 17.2°C | 0 mm | 17% | 2.4 m/s | 6.3 |
| 1987 | 38.0°C | 29.3°C | 20.7°C | 41.9°C | 17.6°C | 0 mm | 19% | 2.8 m/s | 6.2 |
| 1986 | 39.5°C | 30.8°C | 22.2°C | 42.4°C | 19.7°C | 0 mm | 16% | 2.5 m/s | 6.5 |
| 1985 | 37.5°C | 28.7°C | 19.9°C | 41.0°C | 17.5°C | 0 mm | 19% | 2.6 m/s | 6.7 |
| 1984 | 37.9°C | 29.5°C | 21.0°C | 40.5°C | 18.2°C | 0 mm | 16% | 2.2 m/s | 6.7 |
| 1983 | 36.9°C | 28.1°C | 19.4°C | 39.2°C | 17.5°C | 0 mm | 20% | 2.5 m/s | — |
| 1982 | 37.8°C | 29.4°C | 21.1°C | 41.8°C | 17.2°C | 2 mm | 19% | 2.5 m/s | — |
| 1981 | 38.4°C | 29.7°C | 20.9°C | 41.4°C | 17.6°C | 0 mm | 16% | 2.4 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 37.9°C with lows near 21.2°C (mean 29.6°C), based on 45 years of NASA POWER data.
September averages 0 mm of rainfall in Dawmat al Jandal, about average for rainfall. The wettest on record was 7 mm in 1994.
The hottest September reached 44.4°C in 2008. The coldest dipped to 13.1°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.1°C. Daytime highs moved from 37.7°C to 38.3°C and overnight lows from 20.5°C to 22.1°C over the same span.
September is one of the warmer months of the year in Dawmat al Jandal and about average for rainfall, so plan for around 37.9°C daytime highs and 21.2°C at night.
Not quite — September is the 9th coolest month in Dawmat al Jandal, averaging 29.6°C.
For September in Dawmat al Jandal, pack light, breathable clothing and sun protection, with typical highs of 37.9°C and lows of 21.2°C.
Relative humidity in September averages 19% — relatively dry.
Average wind speed in September is 2.5 m/s. The windiest September on record averaged 2.8 m/s (1987).
The wettest September on record was 1994 with 7 mm. On average, September 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 Dawmat al Jandal behaves each September, 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 September specifically, along with year-by-year records and how the month has changed over the decades.
