May is one of the warmer months of the year in Al Ḩillah, with average highs near 39.6°C and lows around 24°C (mean 31.8°C). It is about average for rainfall, averaging 2 mm of rainfall and 17% relative humidity across the period.
May is one of the warmer months of the year in Al Ḩillah. Across 45 years of records, the warmest May in Al Ḩillah was 2012 — when the month averaged 33.1°C — while the coldest was 1982 at 30°C. Typical May days reach 39.6°C with nights near 24°C. The long-term trend is warming, about 0.2°C per decade.
May is about average for rainfall in Al Ḩillah, averaging 2 mm of rainfall. The wettest May on record was 1981 with 22 mm, while the driest were 2021, 2022 and 2025, among others at 0 mm.
Relative humidity in Al Ḩillah during May averages 17%. The most humid May was 1982 at 25%, and the least humid was 2001 at 12%.
May receives about 7.3 kWh/m²/day of solar energy in Al Ḩillah. The sunniest May was 1999 at 8 kWh/m²/day, and the cloudiest were 1987, 1991 and 2019 at 6.7.
Average wind speed in Al Ḩillah during May is 2.8 m/s. The windiest May was 1992 at 3.5 m/s, while the calmest was 2021 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 31.2°C | 31.6°C | 32.2°C | 32.0°C | 31.9°C | +0.7°C |
| Avg High | 38.9°C | 39.3°C | 40.3°C | 39.6°C | 39.8°C | +0.9°C |
| Avg Low | 23.4°C | 23.9°C | 24.2°C | 24.4°C | 23.9°C | +0.5°C |
| Avg Rain | 4 mm | 1 mm | 0 mm | 2 mm | 2 mm | -2 mm |
May temperatures in Al Ḩillah have risen by about 1.3°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 15.1°C (2005) to a record high of 45°C (1998).
Rainfall in May is about average for rainfall, averaging 2 mm, with a wettest year of 22 mm.
A good time to visit Al Ḩillah
May is a good time to visit Al Ḩillah, with days averaging 39.6°C and nights around 24°C (mean 31.8°C, warmer than Al Ḩillah's yearly average) and low rainfall. March and November are marginally more temperate, but May still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 41.0°C | 32.9°C | 24.8°C | 44.6°C | 20.5°C | 0 mm | 13% | 2.9 m/s | 7.6 |
| 2024 | 39.6°C | 31.7°C | 23.7°C | 44.4°C | 19.3°C | 11 mm | 24% | 3.2 m/s | 7.4 |
| 2023 | 38.7°C | 31.2°C | 23.8°C | 42.1°C | 18.0°C | 3 mm | 23% | 3 m/s | 6.9 |
| 2022 | 39.8°C | 31.3°C | 22.8°C | 43.1°C | 18.8°C | 0 mm | 14% | 2.8 m/s | 7.3 |
| 2021 | 40.7°C | 32.7°C | 24.7°C | 43.8°C | 18.7°C | 0 mm | 12% | 2.3 m/s | 7.8 |
| 2020 | 39.1°C | 31.4°C | 23.8°C | 42.5°C | 19.7°C | 0 mm | 18% | 2.8 m/s | 7.3 |
| 2019 | 38.6°C | 31.5°C | 24.5°C | 42.6°C | 19.4°C | 2 mm | 22% | 2.6 m/s | 6.7 |
| 2018 | 39.3°C | 31.4°C | 23.6°C | 42.0°C | 20.5°C | 0 mm | 17% | 3 m/s | 7.3 |
| 2017 | 40.2°C | 32.9°C | 25.5°C | 43.5°C | 23.0°C | 0 mm | 19% | 2.8 m/s | 7.1 |
| 2016 | 40.0°C | 32.2°C | 24.3°C | 44.0°C | 19.3°C | 0 mm | 18% | 2.9 m/s | 7.5 |
| 2015 | 40.2°C | 32.7°C | 25.2°C | 43.2°C | 23.2°C | 0 mm | 17% | 3 m/s | 7.2 |
| 2014 | 39.5°C | 31.7°C | 24.0°C | 43.5°C | 18.7°C | 0 mm | 14% | 2.7 m/s | 7.6 |
| 2013 | 38.0°C | 30.3°C | 22.6°C | 41.4°C | 18.4°C | 1 mm | 24% | 2.8 m/s | 7.3 |
| 2012 🔥 | 41.0°C | 33.1°C | 25.3°C | 43.6°C | 22.9°C | 0 mm | 13% | 3.2 m/s | 7.6 |
| 2011 | 39.6°C | 32.0°C | 24.4°C | 42.7°C | 19.0°C | 3 mm | 19% | 2.9 m/s | 7.4 |
| 2010 | 39.2°C | 31.8°C | 24.4°C | 43.2°C | 20.7°C | 10 mm | 21% | 2.7 m/s | 7.3 |
| 2009 | 40.8°C | 32.5°C | 24.3°C | 44.3°C | 19.9°C | 0 mm | 14% | 2.8 m/s | 7.5 |
| 2008 | 40.1°C | 32.5°C | 24.8°C | 42.9°C | 20.5°C | 0 mm | 16% | 3 m/s | 7.5 |
| 2007 | 40.2°C | 32.6°C | 25.0°C | 43.6°C | 22.5°C | 0 mm | 16% | 2.6 m/s | 7.6 |
| 2006 | 40.3°C | 32.8°C | 25.3°C | 42.8°C | 20.4°C | 0 mm | 16% | 2.5 m/s | 7.2 |
| 2005 | 38.9°C | 30.9°C | 23.0°C | 42.3°C | 15.1°C | 0 mm | 15% | 2.7 m/s | 7.4 |
| 2004 | 39.8°C | 31.4°C | 23.1°C | 44.0°C | 18.5°C | 0 mm | 13% | 2.8 m/s | 7.9 |
| 2003 | 40.2°C | 32.2°C | 24.1°C | 42.4°C | 18.0°C | 0 mm | 14% | 3 m/s | 7.3 |
| 2002 | 41.1°C | 32.4°C | 23.8°C | 44.1°C | 19.3°C | 0 mm | 12% | 3 m/s | 7.9 |
| 2001 | 40.7°C | 32.4°C | 24.0°C | 43.5°C | 20.3°C | 0 mm | 12% | 2.9 m/s | 7.8 |
| 2000 | 40.5°C | 32.3°C | 24.2°C | 43.2°C | 20.3°C | 3 mm | 14% | 2.6 m/s | 7.6 |
| 1999 | 40.6°C | 32.3°C | 23.9°C | 43.3°C | 21.7°C | 0 mm | 12% | 2.9 m/s | 8 |
| 1998 | 39.9°C | 32.3°C | 24.6°C | 45.0°C | 19.7°C | 1 mm | 19% | 2.6 m/s | 7.6 |
| 1997 | 38.1°C | 31.0°C | 24.0°C | 43.5°C | 19.2°C | 0 mm | 20% | 2.9 m/s | 7 |
| 1996 | 39.8°C | 32.2°C | 24.6°C | 42.5°C | 21.2°C | 0 mm | 16% | 2.7 m/s | 7 |
| 1995 | 38.6°C | 30.8°C | 23.1°C | 41.6°C | 19.9°C | 0 mm | 15% | 2.7 m/s | 7.2 |
| 1994 | 39.6°C | 32.1°C | 24.6°C | 44.0°C | 20.8°C | 1 mm | 18% | 2.9 m/s | 7.2 |
| 1993 | 37.9°C | 30.5°C | 23.2°C | 42.0°C | 18.5°C | 10 mm | 24% | 3.1 m/s | 7 |
| 1992 | 39.0°C | 31.4°C | 23.8°C | 42.3°C | 19.6°C | 0 mm | 18% | 3.5 m/s | 7.3 |
| 1991 | 39.1°C | 31.2°C | 23.2°C | 44.2°C | 18.6°C | 0 mm | 14% | 2.6 m/s | 6.7 |
| 1990 | 40.2°C | 32.1°C | 24.0°C | 43.6°C | 16.6°C | 0 mm | 13% | 2.4 m/s | 7.4 |
| 1989 | 39.2°C | 31.2°C | 23.2°C | 42.6°C | 19.2°C | 0 mm | 14% | 2.7 m/s | 7.6 |
| 1988 | 40.2°C | 31.8°C | 23.4°C | 42.6°C | 20.5°C | 0 mm | 13% | 2.7 m/s | 7.4 |
| 1987 | 39.8°C | 32.3°C | 24.8°C | 41.9°C | 21.5°C | 0 mm | 19% | 2.6 m/s | 6.7 |
| 1986 | 39.8°C | 31.6°C | 23.3°C | 43.3°C | 17.6°C | 5 mm | 18% | 3.3 m/s | 7.4 |
| 1985 | 38.4°C | 31.3°C | 24.1°C | 42.0°C | 20.1°C | 1 mm | 20% | 2.4 m/s | 6.9 |
| 1984 | 38.4°C | 30.6°C | 22.7°C | 42.7°C | 17.5°C | 0 mm | 18% | 3 m/s | 7.1 |
| 1983 | 38.3°C | 31.1°C | 23.8°C | 41.6°C | 18.5°C | 9 mm | 24% | 3 m/s | — |
| 1982 ❄️ | 37.5°C | 30.0°C | 22.5°C | 41.7°C | 19.9°C | 0 mm | 25% | 2.8 m/s | — |
| 1981 🌧️ | 38.6°C | 30.7°C | 22.8°C | 43.3°C | 17.4°C | 22 mm | 21% | 2.7 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 39.6°C with lows near 24°C (mean 31.8°C), based on 45 years of NASA POWER data.
May averages 2 mm of rainfall in Al Ḩillah, about average for rainfall. The wettest on record was 22 mm in 1981.
The hottest May reached 45°C in 1998. The coldest dipped to 15.1°C in 2005.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 1.3°C. Daytime highs moved from 38.2°C to 40°C and overnight lows from 23.2°C to 24°C over the same span.
May is one of the warmer months of the year in Al Ḩillah and about average for rainfall, so plan for around 39.6°C daytime highs and 24°C at night.
Not quite — May is the 8th coolest month in Al Ḩillah, averaging 31.8°C.
For May in Al Ḩillah, pack light, breathable clothing and sun protection, with typical highs of 39.6°C and lows of 24°C.
Relative humidity in May averages 17% — relatively dry.
Average wind speed in May is 2.8 m/s. The windiest May on record averaged 3.5 m/s (1992).
The wettest May on record was 1981 with 22 mm. On average, May sees 2 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 May, 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 May specifically, along with year-by-year records and how the month has changed over the decades.
