September is one of the warmer months of the year in Al Ḩillah, with average highs near 39.9°C and lows around 24.6°C (mean 32.3°C). It is about average for rainfall, averaging 0 mm of rainfall and 15% relative humidity across the period.
September is one of the warmer months of the year in Al Ḩillah. Across 45 years of records, the warmest Septembers in Al Ḩillah were 2018 and 2023 — when the month averaged 34.2°C — while the coldest was 1989 at 31°C. Typical September days reach 39.9°C with nights near 24.6°C. The long-term trend is warming, about 0.4°C per decade.
September is about average for rainfall in Al Ḩillah, averaging 0 mm of rainfall. The wettest September on record was 1982 with 2 mm, while the driest were 2023, 2024 and 2025, among others at 0 mm.
Relative humidity in Al Ḩillah during September averages 15%. The most humid September was 2024 at 18%, and the least humid was 1983 at 13%.
September receives about 6.7 kWh/m²/day of solar energy in Al Ḩillah. The sunniest Septembers were 2004, 2005 and 2006 at 7 kWh/m²/day, and the cloudiest was 1991 at 6.2.
Average wind speed in Al Ḩillah during September is 2.5 m/s. The windiest September was 2021 at 3.1 m/s, while the calmest were 1982 and 1986 at 2.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 31.6°C | 32.0°C | 32.1°C | 32.8°C | 33.1°C | +1.5°C |
| Avg High | 39.5°C | 39.7°C | 39.9°C | 40.3°C | 40.6°C | +1.1°C |
| Avg Low | 23.8°C | 24.3°C | 24.3°C | 25.3°C | 25.6°C | +1.8°C |
| Avg Rain | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm |
September temperatures in Al Ḩillah have risen by about 1.7°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 17.8°C (1989) to a record high of 44.7°C (2018).
Rainfall in September is about average for rainfall, averaging 0 mm, with a wettest year of 2 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.3°C per decade while lows rose 0.5°C per decade, narrowing the gap between day and night.
A quieter season to visit Al Ḩillah
If your dates are flexible, the more temperate months of March and November tend to be the most comfortable for visiting Al Ḩillah. That said, September — with days averaging 39.9°C and nights around 24.6°C (mean 32.3°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 | 41.0°C | 33.5°C | 26.0°C | 43.3°C | 23.4°C | 0 mm | 17% | 2.5 m/s | 6.6 |
| 2024 | 40.9°C | 33.5°C | 26.1°C | 43.7°C | 24.0°C | 0 mm | 18% | 2.6 m/s | 6.7 |
| 2023 | 41.7°C | 34.2°C | 26.7°C | 43.9°C | 24.3°C | 0 mm | 14% | 2.4 m/s | 6.6 |
| 2022 | 40.2°C | 32.8°C | 25.3°C | 42.9°C | 20.4°C | 0 mm | 16% | 2.3 m/s | 6.7 |
| 2021 | 39.6°C | 31.9°C | 24.2°C | 43.0°C | 19.1°C | 0 mm | 15% | 3.1 m/s | 6.9 |
| 2020 | 40.1°C | 32.7°C | 25.4°C | 41.9°C | 22.0°C | 0 mm | 16% | 2.3 m/s | 6.8 |
| 2019 | 41.2°C | 33.8°C | 26.4°C | 44.4°C | 23.9°C | 0 mm | 17% | 2.5 m/s | 6.8 |
| 2018 🔥 | 41.7°C | 34.2°C | 26.8°C | 44.7°C | 23.7°C | 0 mm | 16% | 2.4 m/s | 6.8 |
| 2017 | 40.4°C | 32.8°C | 25.2°C | 43.2°C | 22.0°C | 0 mm | 13% | 2.5 m/s | 6.8 |
| 2016 | 40.3°C | 32.8°C | 25.3°C | 44.4°C | 20.5°C | 0 mm | 17% | 2.5 m/s | 6.8 |
| 2015 | 40.0°C | 32.7°C | 25.5°C | 44.4°C | 20.1°C | 0 mm | 16% | 2.4 m/s | 6.6 |
| 2014 | 39.9°C | 32.5°C | 25.1°C | 43.2°C | 21.0°C | 0 mm | 16% | 2.4 m/s | 6.7 |
| 2013 | 39.6°C | 32.0°C | 24.3°C | 42.7°C | 19.0°C | 0 mm | 15% | 2.3 m/s | 6.7 |
| 2012 | 39.7°C | 31.9°C | 24.1°C | 43.1°C | 20.7°C | 0 mm | 15% | 2.6 m/s | 6.9 |
| 2011 | 40.2°C | 32.6°C | 24.9°C | 42.9°C | 22.3°C | 0 mm | 15% | 2.6 m/s | 6.8 |
| 2010 | 40.1°C | 32.6°C | 25.1°C | 44.5°C | 22.3°C | 0 mm | 15% | 2.5 m/s | 6.8 |
| 2009 | 40.6°C | 32.7°C | 24.8°C | 43.4°C | 21.7°C | 0 mm | 15% | 2.5 m/s | 6.8 |
| 2008 | 40.4°C | 32.9°C | 25.4°C | 43.3°C | 22.2°C | 0 mm | 16% | 2.3 m/s | 6.6 |
| 2007 | 40.1°C | 32.4°C | 24.8°C | 43.6°C | 21.0°C | 0 mm | 15% | 2.6 m/s | 6.8 |
| 2006 | 39.4°C | 31.6°C | 23.8°C | 42.3°C | 19.4°C | 0 mm | 14% | 2.3 m/s | 7 |
| 2005 | 39.8°C | 31.7°C | 23.7°C | 43.4°C | 20.6°C | 0 mm | 14% | 2.5 m/s | 7 |
| 2004 | 39.6°C | 31.8°C | 24.1°C | 42.9°C | 20.2°C | 0 mm | 15% | 2.5 m/s | 7 |
| 2003 | 39.1°C | 31.3°C | 23.6°C | 43.3°C | 20.3°C | 0 mm | 15% | 2.6 m/s | 6.9 |
| 2002 | 40.3°C | 32.5°C | 24.8°C | 42.4°C | 21.9°C | 0 mm | 14% | 2.4 m/s | 6.8 |
| 2001 | 40.2°C | 32.5°C | 24.8°C | 42.9°C | 22.3°C | 0 mm | 15% | 2.6 m/s | 6.8 |
| 2000 | 39.0°C | 31.3°C | 23.5°C | 41.1°C | 21.2°C | 0 mm | 16% | 2.6 m/s | 6.9 |
| 1999 | 40.5°C | 33.1°C | 25.6°C | 44.0°C | 22.1°C | 0 mm | 17% | 2.7 m/s | 6.7 |
| 1998 | 41.0°C | 33.6°C | 26.2°C | 43.8°C | 22.9°C | 0 mm | 17% | 2.6 m/s | 6.7 |
| 1997 | 40.5°C | 32.7°C | 24.8°C | 42.1°C | 20.7°C | 0 mm | 13% | 2.3 m/s | 6.9 |
| 1996 | 39.1°C | 31.7°C | 24.2°C | 42.5°C | 20.0°C | 0 mm | 16% | 2.4 m/s | 6.5 |
| 1995 | 39.2°C | 31.4°C | 23.6°C | 41.9°C | 20.3°C | 0 mm | 16% | 2.3 m/s | 6.8 |
| 1994 | 39.0°C | 31.5°C | 24.1°C | 41.4°C | 21.6°C | 0 mm | 18% | 2.3 m/s | 6.4 |
| 1993 | 39.3°C | 31.7°C | 24.0°C | 42.3°C | 20.9°C | 0 mm | 15% | 2.5 m/s | 6.7 |
| 1992 | 38.7°C | 31.1°C | 23.5°C | 40.2°C | 19.8°C | 0 mm | 16% | 2.6 m/s | 6.4 |
| 1991 | 39.4°C | 31.5°C | 23.6°C | 41.4°C | 20.6°C | 0 mm | 15% | 2.5 m/s | 6.2 |
| 1990 | 39.9°C | 31.9°C | 23.9°C | 42.7°C | 20.1°C | 0 mm | 13% | 2.4 m/s | 6.6 |
| 1989 ❄️ | 38.7°C | 31.0°C | 23.4°C | 42.2°C | 17.8°C | 0 mm | 16% | 2.4 m/s | 6.4 |
| 1988 | 39.8°C | 31.8°C | 23.8°C | 43.1°C | 20.0°C | 0 mm | 16% | 2.8 m/s | 6.3 |
| 1987 | 40.7°C | 32.7°C | 24.7°C | 43.0°C | 22.5°C | 0 mm | 16% | 2.7 m/s | 6.7 |
| 1986 | 39.3°C | 31.3°C | 23.3°C | 41.2°C | 21.2°C | 0 mm | 15% | 2.2 m/s | 6.8 |
| 1985 | 39.5°C | 31.7°C | 23.9°C | 42.9°C | 18.5°C | 0 mm | 15% | 2.5 m/s | 6.7 |
| 1984 | 39.2°C | 31.4°C | 23.7°C | 41.4°C | 20.7°C | 0 mm | 14% | 2.8 m/s | 6.5 |
| 1983 | 39.0°C | 31.1°C | 23.3°C | 41.5°C | 20.1°C | 0 mm | 13% | 2.3 m/s | — |
| 1982 🌧️ | 39.9°C | 32.2°C | 24.6°C | 42.3°C | 22.0°C | 2 mm | 15% | 2.2 m/s | — |
| 1981 | 39.1°C | 31.3°C | 23.4°C | 41.1°C | 20.4°C | 0 mm | 14% | 2.3 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 39.9°C with lows near 24.6°C (mean 32.3°C), based on 45 years of NASA POWER data.
September averages 0 mm of rainfall in Al Ḩillah, about average for rainfall. The wettest on record was 2 mm in 1982.
The hottest September reached 44.7°C in 2018. The coldest dipped to 17.8°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.7°C. Daytime highs moved from 39.3°C to 40.7°C and overnight lows from 23.8°C to 25.7°C over the same span.
September is one of the warmer months of the year in Al Ḩillah and about average for rainfall, so plan for around 39.9°C daytime highs and 24.6°C at night.
Not quite — September is the 9th coolest month in Al Ḩillah, averaging 32.3°C.
For September in Al Ḩillah, pack light, breathable clothing and sun protection, with typical highs of 39.9°C and lows of 24.6°C.
Relative humidity in September averages 15% — relatively dry.
Average wind speed in September is 2.5 m/s. The windiest September on record averaged 3.1 m/s (2021).
The wettest September on record was 1982 with 2 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 Al Ḩillah 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.
