May is one of the warmer months of the year in Ra’s al Khafjī, with average highs near 31°C and lows around 26.4°C (mean 28.7°C). It is about average for rainfall, averaging 2 mm of rainfall and 55% relative humidity across the period.
May is one of the warmer months of the year in Ra’s al Khafjī. Across 45 years of records, the warmest May in Ra’s al Khafjī was 2021 — when the month averaged 31.4°C — while the coldest was 1992 at 26.3°C. Typical May days reach 31°C with nights near 26.4°C. The long-term trend is warming, about 0.5°C per decade.
May is about average for rainfall in Ra’s al Khafjī, averaging 2 mm of rainfall. The wettest May on record was 1981 with 19 mm, while the driest were 2019, 2021 and 2022, among others at 0 mm.
Relative humidity in Ra’s al Khafjī during May averages 55%. The most humid May was 2024 at 62%, and the least humid was 1990 at 48%.
May receives about 6.4 kWh/m²/day of solar energy in Ra’s al Khafjī. The sunniest May was 2004 at 7 kWh/m²/day, and the cloudiest was 1987 at 5.1.
Average wind speed in Ra’s al Khafjī during May is 3.2 m/s. The windiest Mays were 2001 and 2022 at 4 m/s, while the calmest was 1987 at 2.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.9°C | 28.2°C | 28.9°C | 29.1°C | 29.7°C | +1.8°C |
| Avg High | 30.2°C | 30.5°C | 31.2°C | 31.4°C | 32.1°C | +1.9°C |
| Avg Low | 25.7°C | 25.8°C | 26.7°C | 26.9°C | 27.4°C | +1.7°C |
| Avg Rain | 3 mm | 1 mm | 0 mm | 1 mm | 3 mm | -1 mm |
May temperatures in Ra’s al Khafjī have risen by about 2.2°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 20.9°C (1984) to a record high of 40.4°C (2025).
Rainfall in May is about average for rainfall, averaging 2 mm, with a wettest year of 19 mm.
A good time to visit Ra’s al Khafjī
May is a good time to visit Ra’s al Khafjī, with days averaging 31°C and nights around 26.4°C (mean 28.7°C, warmer than Ra’s al Khafjī's yearly average) and low rainfall. April 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 | 34.0°C | 31.2°C | 28.3°C | 40.4°C | 25.0°C | 0 mm | 49% | 3.9 m/s | 6.8 |
| 2024 | 31.1°C | 29.0°C | 26.9°C | 38.1°C | 21.9°C | 15 mm | 62% | 3.9 m/s | 6.5 |
| 2023 | 31.1°C | 28.9°C | 26.7°C | 36.5°C | 23.1°C | 0 mm | 58% | 3.5 m/s | 6.2 |
| 2022 | 30.5°C | 28.2°C | 25.9°C | 37.5°C | 23.4°C | 0 mm | 52% | 4 m/s | 6.6 |
| 2021 🔥 | 33.8°C | 31.4°C | 29.0°C | 38.6°C | 24.7°C | 0 mm | 49% | 2.7 m/s | 6.7 |
| 2020 | 32.0°C | 29.7°C | 27.4°C | 37.4°C | 24.3°C | 0 mm | 51% | 3.4 m/s | 6.8 |
| 2019 | 31.9°C | 29.3°C | 26.8°C | 37.6°C | 23.4°C | 0 mm | 56% | 2.8 m/s | 6.7 |
| 2018 | 31.3°C | 29.1°C | 26.9°C | 35.7°C | 24.3°C | 10 mm | 57% | 2.7 m/s | 6.3 |
| 2017 | 32.2°C | 29.8°C | 27.4°C | 36.4°C | 24.8°C | 0 mm | 52% | 3.9 m/s | 6.3 |
| 2016 | 32.3°C | 29.9°C | 27.5°C | 35.3°C | 23.5°C | 0 mm | 54% | 3.8 m/s | 6.7 |
| 2015 | 31.0°C | 28.8°C | 26.6°C | 36.0°C | 23.4°C | 0 mm | 57% | 3.2 m/s | 6 |
| 2014 | 31.3°C | 29.3°C | 27.3°C | 36.4°C | 24.5°C | 0 mm | 56% | 3.1 m/s | 6.3 |
| 2013 | 29.9°C | 27.8°C | 25.7°C | 33.4°C | 22.6°C | 0 mm | 61% | 3.5 m/s | 6.6 |
| 2012 | 31.6°C | 29.4°C | 27.2°C | 36.4°C | 23.0°C | 0 mm | 53% | 3.2 m/s | 6 |
| 2011 | 31.2°C | 29.1°C | 27.0°C | 35.7°C | 23.3°C | 0 mm | 57% | 3.2 m/s | 6.4 |
| 2010 | 30.9°C | 28.8°C | 26.7°C | 34.6°C | 23.6°C | 0 mm | 55% | 3.2 m/s | 6.2 |
| 2009 | 31.0°C | 28.9°C | 26.8°C | 37.1°C | 23.1°C | 1 mm | 55% | 3.2 m/s | 6.3 |
| 2008 | 31.1°C | 28.9°C | 26.8°C | 35.6°C | 23.7°C | 0 mm | 54% | 3.2 m/s | 6.3 |
| 2007 | 31.3°C | 29.1°C | 27.0°C | 35.2°C | 24.4°C | 0 mm | 57% | 2.8 m/s | 6.4 |
| 2006 | 31.7°C | 29.7°C | 27.7°C | 35.0°C | 24.3°C | 0 mm | 53% | 3.3 m/s | 6.5 |
| 2005 | 30.5°C | 28.2°C | 25.8°C | 34.8°C | 22.0°C | 0 mm | 56% | 2.9 m/s | 6.6 |
| 2004 | 30.6°C | 28.3°C | 26.1°C | 33.4°C | 22.5°C | 1 mm | 54% | 3.2 m/s | 7 |
| 2003 | 31.0°C | 28.7°C | 26.4°C | 35.1°C | 22.0°C | 0 mm | 52% | 2.8 m/s | 6.5 |
| 2002 | 31.4°C | 29.1°C | 26.8°C | 37.9°C | 23.2°C | 0 mm | 56% | 3.1 m/s | 6.9 |
| 2001 | 31.4°C | 28.9°C | 26.4°C | 37.0°C | 23.7°C | 1 mm | 52% | 4 m/s | 6.8 |
| 2000 | 31.6°C | 29.3°C | 26.9°C | 34.8°C | 23.0°C | 0 mm | 50% | 3.2 m/s | 6.6 |
| 1999 | 31.9°C | 29.4°C | 26.9°C | 35.8°C | 24.8°C | 1 mm | 49% | 3 m/s | 6.8 |
| 1998 | 31.2°C | 29.0°C | 26.8°C | 36.1°C | 23.5°C | 0 mm | 56% | 2.6 m/s | 6.9 |
| 1997 | 30.7°C | 28.3°C | 25.9°C | 35.4°C | 22.5°C | 2 mm | 53% | 2.5 m/s | 6.1 |
| 1996 | 31.5°C | 29.2°C | 26.9°C | 36.5°C | 23.8°C | 0 mm | 58% | 2.6 m/s | 6.3 |
| 1995 | 30.1°C | 27.8°C | 25.4°C | 34.6°C | 22.6°C | 2 mm | 59% | 3 m/s | 6.4 |
| 1994 | 31.0°C | 28.8°C | 26.5°C | 37.1°C | 23.5°C | 1 mm | 54% | 3 m/s | 6.1 |
| 1993 | 29.4°C | 27.4°C | 25.5°C | 33.4°C | 21.7°C | 1 mm | 60% | 3.3 m/s | 6.1 |
| 1992 ❄️ | 28.4°C | 26.3°C | 24.1°C | 33.3°C | 21.9°C | 2 mm | 60% | 3 m/s | 5.5 |
| 1991 | 29.2°C | 26.6°C | 24.0°C | 32.5°C | 21.1°C | 0 mm | 49% | 3.6 m/s | 6.4 |
| 1990 | 31.4°C | 28.9°C | 26.4°C | 38.0°C | 23.7°C | 0 mm | 48% | 2.8 m/s | 6.7 |
| 1989 | 30.6°C | 28.3°C | 26.0°C | 35.9°C | 23.3°C | 0 mm | 56% | 3.9 m/s | 6.4 |
| 1988 | 31.2°C | 28.7°C | 26.2°C | 34.9°C | 23.4°C | 0 mm | 53% | 3.7 m/s | 6.3 |
| 1987 | 31.3°C | 28.7°C | 26.1°C | 35.4°C | 22.3°C | 0 mm | 58% | 2.4 m/s | 5.1 |
| 1986 | 30.1°C | 28.1°C | 26.0°C | 38.0°C | 22.7°C | 6 mm | 60% | 3.2 m/s | 5.6 |
| 1985 | 30.2°C | 28.0°C | 25.9°C | 34.6°C | 22.6°C | 0 mm | 57% | 2.7 m/s | 5.7 |
| 1984 | 28.8°C | 26.7°C | 24.6°C | 32.2°C | 20.9°C | 0 mm | 55% | 2.8 m/s | 6 |
| 1983 | 30.3°C | 28.1°C | 25.9°C | 35.1°C | 22.9°C | 6 mm | 61% | 2.7 m/s | — |
| 1982 | 29.7°C | 27.5°C | 25.2°C | 33.6°C | 22.5°C | 1 mm | 58% | 2.9 m/s | — |
| 1981 🌧️ | 29.3°C | 27.4°C | 25.5°C | 33.0°C | 22.5°C | 19 mm | 57% | 3.6 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 31°C with lows near 26.4°C (mean 28.7°C), based on 45 years of NASA POWER data.
May averages 2 mm of rainfall in Ra’s al Khafjī, about average for rainfall. The wettest on record was 19 mm in 1981.
The hottest May reached 40.4°C in 2025. The coldest dipped to 20.9°C in 1984.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 2.2°C. Daytime highs moved from 29.7°C to 32.1°C and overnight lows from 25.4°C to 27.4°C over the same span.
May is one of the warmer months of the year in Ra’s al Khafjī and about average for rainfall, so plan for around 31°C daytime highs and 26.4°C at night.
Not quite — May is the 7th coolest month in Ra’s al Khafjī, averaging 28.7°C.
For May in Ra’s al Khafjī, pack light, breathable clothing and sun protection, with typical highs of 31°C and lows of 26.4°C.
Relative humidity in May averages 55% — moderately humid.
Average wind speed in May is 3.2 m/s. The windiest May on record averaged 4 m/s (2001).
The wettest May on record was 1981 with 19 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 Ra’s al Khafjī 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.
