May is one of the warmer months of the year in Al ‘Ayn, with average highs near 41.9°C and lows around 25.5°C (mean 33.7°C). It is about average for rainfall, averaging 3 mm of rainfall and 24% relative humidity across the period.
May is one of the warmer months of the year in Al ‘Ayn. Across 45 years of records, the warmest May in Al ‘Ayn was 2025 — when the month averaged 35.5°C — while the coldest was 1991 at 31.3°C. Typical May days reach 41.9°C with nights near 25.5°C. The long-term trend is warming, about 0.3°C per decade.
May is about average for rainfall in Al ‘Ayn, averaging 3 mm of rainfall. The wettest May on record was 2017 with 76 mm, while the driest were 2008, 2018 and 2025, among others at 0 mm.
Relative humidity in Al ‘Ayn during May averages 24%. The most humid May was 2024 at 34%, and the least humid was 2015 at 19%.
May receives about 7.5 kWh/m²/day of solar energy in Al ‘Ayn. The sunniest Mays were 2000 and 2021 at 7.8 kWh/m²/day, and the cloudiest was 1985 at 7.
Average wind speed in Al ‘Ayn during May is 2.8 m/s. The windiest Mays were 1984 and 1999 at 3.2 m/s, while the calmest were 1996, 2007 and 2017 at 2.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 33.2°C | 33.3°C | 34.2°C | 33.8°C | 34.1°C | +0.9°C |
| Avg High | 41.6°C | 41.5°C | 42.6°C | 41.7°C | 42.3°C | +0.7°C |
| Avg Low | 24.9°C | 25.0°C | 25.8°C | 26.0°C | 25.8°C | +0.9°C |
| Avg Rain | 1 mm | 1 mm | 1 mm | 8 mm | 2 mm | +1 mm |
May temperatures in Al ‘Ayn have risen by about 1.3°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 16.6°C (2005) to a record high of 48.8°C (2025).
Rainfall in May is about average for rainfall, averaging 3 mm, with a wettest year of 76 mm.
A good time to visit Al ‘Ayn
May is a good time to visit Al ‘Ayn, with days averaging 41.9°C and nights around 25.5°C (mean 33.7°C, warmer than Al ‘Ayn's yearly average) and low rainfall. December and February 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 🔥 | 44.2°C | 35.5°C | 26.8°C | 48.8°C | 19.0°C | 0 mm | 23% | 2.9 m/s | 7.6 |
| 2024 | 41.0°C | 33.2°C | 25.3°C | 46.9°C | 19.4°C | 6 mm | 34% | 2.6 m/s | 7.5 |
| 2023 | 41.7°C | 33.8°C | 25.9°C | 44.8°C | 18.0°C | 2 mm | 25% | 2.8 m/s | 7.5 |
| 2022 | 42.2°C | 32.7°C | 23.3°C | 46.4°C | 18.2°C | 1 mm | 32% | 3.1 m/s | 7.6 |
| 2021 | 42.9°C | 34.7°C | 26.6°C | 46.9°C | 22.4°C | 3 mm | 22% | 2.7 m/s | 7.8 |
| 2020 | 42.0°C | 34.4°C | 26.8°C | 45.3°C | 19.2°C | 1 mm | 28% | 2.9 m/s | 7.6 |
| 2019 | 41.1°C | 33.3°C | 25.6°C | 45.0°C | 19.1°C | 1 mm | 24% | 2.9 m/s | 7.5 |
| 2018 | 41.7°C | 34.0°C | 26.3°C | 45.8°C | 22.8°C | 0 mm | 24% | 3 m/s | 7.4 |
| 2017 🌧️ | 40.8°C | 33.2°C | 25.6°C | 47.3°C | 22.2°C | 76 mm | 31% | 2.5 m/s | 7.7 |
| 2016 | 42.1°C | 33.6°C | 25.2°C | 45.0°C | 19.3°C | 0 mm | 27% | 2.8 m/s | 7.7 |
| 2015 | 42.7°C | 34.8°C | 26.8°C | 45.7°C | 21.9°C | 1 mm | 19% | 2.8 m/s | 7.4 |
| 2014 | 41.7°C | 33.9°C | 26.1°C | 46.1°C | 20.8°C | 1 mm | 23% | 2.7 m/s | 7.6 |
| 2013 | 40.0°C | 31.9°C | 23.9°C | 44.7°C | 19.2°C | 2 mm | 28% | 2.8 m/s | 7.5 |
| 2012 | 43.1°C | 35.0°C | 26.9°C | 45.7°C | 22.7°C | 1 mm | 19% | 2.7 m/s | 7.4 |
| 2011 | 42.4°C | 34.3°C | 26.2°C | 47.1°C | 19.7°C | 0 mm | 25% | 2.8 m/s | 7.5 |
| 2010 | 41.8°C | 34.3°C | 26.9°C | 45.3°C | 21.0°C | 0 mm | 22% | 2.7 m/s | 7.3 |
| 2009 | 43.5°C | 34.9°C | 26.2°C | 48.3°C | 18.5°C | 0 mm | 21% | 2.9 m/s | 7.6 |
| 2008 | 42.4°C | 34.5°C | 26.6°C | 44.5°C | 19.8°C | 0 mm | 19% | 2.7 m/s | 7.5 |
| 2007 | 42.5°C | 34.7°C | 27.0°C | 44.3°C | 22.9°C | 0 mm | 22% | 2.5 m/s | 7.6 |
| 2006 | 42.7°C | 34.3°C | 25.8°C | 47.3°C | 22.1°C | 0 mm | 23% | 2.7 m/s | 7.7 |
| 2005 | 41.0°C | 33.2°C | 25.5°C | 44.8°C | 16.6°C | 0 mm | 23% | 2.7 m/s | 7.4 |
| 2004 | 42.4°C | 33.8°C | 25.1°C | 47.1°C | 18.9°C | 1 mm | 23% | 2.9 m/s | 7.5 |
| 2003 | 41.8°C | 33.5°C | 25.2°C | 44.6°C | 17.1°C | 0 mm | 24% | 2.9 m/s | 7.4 |
| 2002 | 43.3°C | 34.6°C | 25.9°C | 45.7°C | 18.8°C | 1 mm | 23% | 2.8 m/s | 7.6 |
| 2001 | 43.3°C | 34.6°C | 25.9°C | 46.2°C | 21.0°C | 1 mm | 22% | 2.8 m/s | 7.5 |
| 2000 | 42.9°C | 33.8°C | 24.7°C | 45.2°C | 19.9°C | 2 mm | 27% | 3 m/s | 7.8 |
| 1999 | 42.7°C | 33.7°C | 24.7°C | 46.4°C | 19.6°C | 2 mm | 24% | 3.2 m/s | 7.7 |
| 1998 | 42.4°C | 34.0°C | 25.7°C | 47.6°C | 19.7°C | 0 mm | 22% | 2.8 m/s | 7.6 |
| 1997 | 40.6°C | 32.7°C | 24.7°C | 44.3°C | 19.1°C | 0 mm | 22% | 2.8 m/s | 7.6 |
| 1996 | 41.8°C | 34.1°C | 26.5°C | 45.5°C | 19.1°C | 2 mm | 22% | 2.5 m/s | 7.2 |
| 1995 | 40.8°C | 32.6°C | 24.4°C | 43.8°C | 18.4°C | 1 mm | 25% | 2.9 m/s | 7.4 |
| 1994 | 41.6°C | 33.4°C | 25.3°C | 46.5°C | 18.3°C | 3 mm | 26% | 3 m/s | 7.3 |
| 1993 | 41.1°C | 32.9°C | 24.7°C | 46.4°C | 18.3°C | 0 mm | 27% | 2.9 m/s | 7.5 |
| 1992 | 41.6°C | 33.7°C | 25.7°C | 45.4°C | 20.7°C | 0 mm | 20% | 2.9 m/s | 7.3 |
| 1991 ❄️ | 39.8°C | 31.3°C | 22.7°C | 44.3°C | 17.2°C | 0 mm | 26% | 3.1 m/s | 7.2 |
| 1990 | 43.0°C | 34.2°C | 25.4°C | 46.6°C | 19.0°C | 1 mm | 24% | 2.9 m/s | 7.4 |
| 1989 | 41.7°C | 33.2°C | 24.6°C | 47.2°C | 19.2°C | 0 mm | 23% | 2.8 m/s | 7.4 |
| 1988 | 42.7°C | 33.6°C | 24.4°C | 45.2°C | 20.5°C | 0 mm | 27% | 2.8 m/s | 7.1 |
| 1987 | 41.8°C | 34.0°C | 26.3°C | 43.8°C | 20.8°C | 0 mm | 21% | 2.9 m/s | 7.1 |
| 1986 | 43.0°C | 34.6°C | 26.2°C | 46.2°C | 19.2°C | 2 mm | 20% | 2.9 m/s | 7.3 |
| 1985 | 41.3°C | 33.0°C | 24.8°C | 45.8°C | 19.0°C | 0 mm | 25% | 3 m/s | 7 |
| 1984 | 40.5°C | 32.3°C | 24.1°C | 45.5°C | 18.1°C | 0 mm | 23% | 3.2 m/s | 7.3 |
| 1983 | 41.0°C | 32.9°C | 24.8°C | 43.3°C | 19.0°C | 0 mm | 27% | 2.8 m/s | — |
| 1982 | 40.8°C | 32.7°C | 24.6°C | 43.6°C | 20.2°C | 0 mm | 26% | 2.7 m/s | — |
| 1981 | 41.4°C | 32.8°C | 24.1°C | 46.6°C | 18.4°C | 7 mm | 27% | 3.1 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 41.9°C with lows near 25.5°C (mean 33.7°C), based on 45 years of NASA POWER data.
May averages 3 mm of rainfall in Al ‘Ayn, about average for rainfall. The wettest on record was 76 mm in 2017.
The hottest May reached 48.8°C in 2025. The coldest dipped to 16.6°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 41°C to 42.4°C and overnight lows from 24.5°C to 25.6°C over the same span.
May is one of the warmer months of the year in Al ‘Ayn and about average for rainfall, so plan for around 41.9°C daytime highs and 25.5°C at night.
Not quite — May is the 8th coolest month in Al ‘Ayn, averaging 33.7°C.
For May in Al ‘Ayn, pack light, breathable clothing and sun protection, with typical highs of 41.9°C and lows of 25.5°C.
Relative humidity in May averages 24% — relatively dry.
Average wind speed in May is 2.8 m/s. The windiest May on record averaged 3.2 m/s (1984).
The wettest May on record was 2017 with 76 mm. On average, May sees 3 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 ‘Ayn 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.
