September is one of the warmer months of the year in Ad Darb, with average highs near 38.8°C and lows around 29.1°C (mean 34°C). It is about average for rainfall, averaging 6 mm of rainfall and 47% relative humidity across the period.
September is one of the warmer months of the year in Ad Darb. Across 45 years of records, the warmest September in Ad Darb was 2023 — when the month averaged 36°C — while the coldest was 1986 at 31.7°C. Typical September days reach 38.8°C with nights near 29.1°C. The long-term trend is warming, about 0.2°C per decade.
September is about average for rainfall in Ad Darb, averaging 6 mm of rainfall. The wettest September on record was 1986 with 48 mm, while the driest was 2017 at 1 mm.
Relative humidity in Ad Darb during September averages 47%. The most humid September was 2024 at 59%, and the least humid was 1982 at 39%.
September receives about 6.3 kWh/m²/day of solar energy in Ad Darb. The sunniest September was 2009 at 6.6 kWh/m²/day, and the cloudiest was 1988 at 5.8.
Average wind speed in Ad Darb during September is 2.6 m/s. The windiest September was 2014 at 2.9 m/s, while the calmest was 2024 at 2.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 33.5°C | 33.5°C | 34.4°C | 34.2°C | 33.9°C | +0.4°C |
| Avg High | 38.5°C | 38.3°C | 39.3°C | 39.0°C | 38.6°C | +0.1°C |
| Avg Low | 28.5°C | 28.7°C | 29.4°C | 29.4°C | 29.3°C | +0.8°C |
| Avg Rain | 10 mm | 5 mm | 3 mm | 3 mm | 11 mm | +1 mm |
September temperatures in Ad Darb have risen by about 0.5°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 25.4°C (1994) to a record high of 44.7°C (2015).
Rainfall in September is about average for rainfall, averaging 6 mm, with a wettest year of 48 mm.
A quieter season to visit Ad Darb
If your dates are flexible, the more temperate months of January and December tend to be the most comfortable for visiting Ad Darb. That said, September — with days averaging 38.8°C and nights around 29.1°C (mean 34°C) and low rainfall (6 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 | 38.0°C | 33.4°C | 28.9°C | 42.0°C | 27.3°C | 20 mm | 55% | 2.4 m/s | 6 |
| 2024 | 36.9°C | 32.8°C | 28.7°C | 41.5°C | 27.4°C | 10 mm | 59% | 2.1 m/s | 6.2 |
| 2023 🔥 | 41.0°C | 36.0°C | 31.0°C | 44.1°C | 29.1°C | 5 mm | 44% | 2.8 m/s | 6.1 |
| 2022 | 39.1°C | 34.2°C | 29.4°C | 42.7°C | 28.1°C | 8 mm | 49% | 2.5 m/s | 6.1 |
| 2021 | 37.7°C | 33.3°C | 28.9°C | 40.7°C | 26.9°C | 17 mm | 54% | 2.4 m/s | 6.2 |
| 2020 | 39.0°C | 33.9°C | 28.9°C | 42.0°C | 27.8°C | 6 mm | 48% | 2.5 m/s | 6.5 |
| 2019 | 39.5°C | 34.7°C | 29.8°C | 43.2°C | 28.7°C | 4 mm | 48% | 2.7 m/s | 6.3 |
| 2018 | 38.8°C | 34.2°C | 29.5°C | 40.7°C | 28.3°C | 2 mm | 48% | 2.7 m/s | 6.4 |
| 2017 | 39.1°C | 34.3°C | 29.5°C | 42.4°C | 27.8°C | 1 mm | 46% | 2.6 m/s | 6.5 |
| 2016 | 39.4°C | 34.5°C | 29.6°C | 43.6°C | 27.8°C | 2 mm | 46% | 2.7 m/s | 6.2 |
| 2015 | 39.0°C | 34.5°C | 30.0°C | 44.7°C | 28.4°C | 2 mm | 46% | 2.5 m/s | 6.5 |
| 2014 | 38.1°C | 33.4°C | 28.8°C | 42.1°C | 28.1°C | 7 mm | 50% | 2.9 m/s | 6.1 |
| 2013 | 39.4°C | 34.5°C | 29.6°C | 42.2°C | 28.9°C | 4 mm | 45% | 2.6 m/s | 6.4 |
| 2012 | 39.4°C | 34.3°C | 29.1°C | 42.4°C | 27.2°C | 2 mm | 43% | 2.7 m/s | 6.3 |
| 2011 | 38.5°C | 33.9°C | 29.3°C | 40.3°C | 28.0°C | 7 mm | 46% | 2.6 m/s | 6.2 |
| 2010 | 38.8°C | 33.7°C | 28.7°C | 41.7°C | 26.1°C | 3 mm | 48% | 2.8 m/s | 6.5 |
| 2009 | 40.2°C | 34.8°C | 29.5°C | 44.0°C | 28.2°C | 2 mm | 42% | 2.7 m/s | 6.6 |
| 2008 | 39.5°C | 34.6°C | 29.8°C | 44.2°C | 26.9°C | 4 mm | 46% | 2.7 m/s | 6.2 |
| 2007 | 39.2°C | 34.1°C | 28.9°C | 43.0°C | 26.6°C | 2 mm | 47% | 2.7 m/s | 6.2 |
| 2006 | 38.4°C | 33.9°C | 29.4°C | 41.6°C | 27.6°C | 4 mm | 48% | 2.6 m/s | 6.3 |
| 2005 | 39.6°C | 34.7°C | 29.8°C | 43.3°C | 27.7°C | 3 mm | 46% | 2.7 m/s | 6.4 |
| 2004 | 39.5°C | 34.6°C | 29.7°C | 42.4°C | 27.7°C | 2 mm | 43% | 2.7 m/s | 6.4 |
| 2003 | 39.1°C | 34.4°C | 29.6°C | 42.9°C | 28.5°C | 4 mm | 46% | 2.7 m/s | 6.4 |
| 2002 | 39.3°C | 34.2°C | 29.1°C | 41.7°C | 27.5°C | 3 mm | 46% | 2.8 m/s | 6.5 |
| 2001 | 39.5°C | 34.3°C | 29.2°C | 43.4°C | 27.8°C | 2 mm | 46% | 2.8 m/s | 6.4 |
| 2000 | 38.7°C | 33.9°C | 29.2°C | 41.9°C | 27.6°C | 4 mm | 46% | 2.7 m/s | 6.3 |
| 1999 | 38.1°C | 33.4°C | 28.7°C | 42.6°C | 26.8°C | 14 mm | 51% | 2.7 m/s | 6.2 |
| 1998 | 37.4°C | 33.1°C | 28.7°C | 41.7°C | 27.6°C | 4 mm | 57% | 2.8 m/s | 6.3 |
| 1997 | 38.5°C | 34.0°C | 29.4°C | 41.8°C | 28.0°C | 2 mm | 47% | 2.5 m/s | 6.5 |
| 1996 | 39.3°C | 34.2°C | 29.1°C | 42.6°C | 27.1°C | 2 mm | 45% | 2.7 m/s | 6.2 |
| 1995 | 38.6°C | 33.7°C | 28.7°C | 41.0°C | 26.6°C | 3 mm | 46% | 2.8 m/s | 6.2 |
| 1994 | 36.3°C | 32.2°C | 28.0°C | 40.4°C | 25.4°C | 8 mm | 53% | 2.6 m/s | 6.2 |
| 1993 | 38.7°C | 33.9°C | 29.0°C | 41.4°C | 27.5°C | 5 mm | 47% | 2.8 m/s | 6.2 |
| 1992 | 38.3°C | 33.2°C | 28.2°C | 40.5°C | 26.8°C | 2 mm | 47% | 2.7 m/s | 6 |
| 1991 | 38.6°C | 33.5°C | 28.3°C | 41.5°C | 26.5°C | 2 mm | 44% | 2.6 m/s | 6.2 |
| 1990 | 39.2°C | 34.2°C | 29.2°C | 42.3°C | 27.7°C | 4 mm | 44% | 2.6 m/s | 6.1 |
| 1989 | 39.8°C | 34.4°C | 29.0°C | 42.4°C | 27.4°C | 2 mm | 41% | 2.8 m/s | 6.2 |
| 1988 | 39.1°C | 34.1°C | 29.1°C | 41.7°C | 27.5°C | 4 mm | 46% | 2.8 m/s | 5.8 |
| 1987 | 38.9°C | 33.8°C | 28.7°C | 42.2°C | 27.3°C | 5 mm | 47% | 2.7 m/s | 6.4 |
| 1986 ❄️ 🌧️ | 36.0°C | 31.7°C | 27.4°C | 38.7°C | 26.0°C | 48 mm | 57% | 2.4 m/s | 6.2 |
| 1985 | 38.1°C | 33.0°C | 27.9°C | 40.8°C | 26.5°C | 8 mm | 46% | 2.7 m/s | 6.2 |
| 1984 | 37.7°C | 33.0°C | 28.4°C | 41.8°C | 26.7°C | 4 mm | 47% | 2.6 m/s | 6 |
| 1983 | 38.4°C | 33.6°C | 28.7°C | 41.5°C | 27.2°C | 8 mm | 44% | 2.5 m/s | — |
| 1982 | 39.4°C | 33.9°C | 28.5°C | 42.0°C | 26.8°C | 11 mm | 39% | 2.6 m/s | — |
| 1981 | 38.7°C | 33.7°C | 28.8°C | 42.1°C | 27.0°C | 3 mm | 44% | 2.6 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 38.8°C with lows near 29.1°C (mean 34°C), based on 45 years of NASA POWER data.
September averages 6 mm of rainfall in Ad Darb, about average for rainfall. The wettest on record was 48 mm in 1986.
The hottest September reached 44.7°C in 2015. The coldest dipped to 25.4°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 0.5°C. Daytime highs moved from 38.5°C to 38.5°C and overnight lows from 28.5°C to 29.4°C over the same span.
September is one of the warmer months of the year in Ad Darb and about average for rainfall, so plan for around 38.8°C daytime highs and 29.1°C at night.
Not quite — September is the 11th coolest month in Ad Darb, averaging 34°C.
For September in Ad Darb, pack light, breathable clothing and sun protection, with typical highs of 38.8°C and lows of 29.1°C.
Relative humidity in September averages 47% — relatively dry.
Average wind speed in September is 2.6 m/s. The windiest September on record averaged 2.9 m/s (2014).
The wettest September on record was 1986 with 48 mm. On average, September sees 6 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 Ad Darb 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.
