May is one of the warmer months of the year in Mecca, with average highs near 40.5°C and lows around 25.8°C (mean 33.2°C). It is about average for rainfall, averaging 4 mm of rainfall and 25% relative humidity across the period.
May is one of the warmer months of the year in Mecca. Across 45 years of records, the warmest May in Mecca was 1999 — when the month averaged 35°C — while the coldest were 1986 and 2005 at 30.8°C. Typical May days reach 40.5°C with nights near 25.8°C. The long-term trend is warming, about 0.3°C per decade.
May is about average for rainfall in Mecca, averaging 4 mm of rainfall. The wettest May on record was 1987 with 36 mm, while the driest were 2011, 2012 and 2018, among others at 0 mm.
Relative humidity in Mecca during May averages 25%. The most humid May was 1987 at 37%, and the least humid was 2004 at 16%.
May receives about 7.3 kWh/m²/day of solar energy in Mecca. The sunniest Mays were 2002 and 2004 at 7.9 kWh/m²/day, and the cloudiest was 1987 at 6.4.
Average wind speed in Mecca during May is 3 m/s. The windiest May was 2018 at 3.4 m/s, while the calmest were 1987 and 2021 at 2.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 32.4°C | 33.1°C | 33.3°C | 33.6°C | 33.3°C | +0.9°C |
| Avg High | 39.5°C | 40.3°C | 40.9°C | 41.0°C | 40.8°C | +1.3°C |
| Avg Low | 25.4°C | 25.9°C | 25.7°C | 26.3°C | 25.8°C | +0.4°C |
| Avg Rain | 8 mm | 1 mm | 2 mm | 3 mm | 10 mm | +2 mm |
May temperatures in Mecca have risen by about 1°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 14.8°C (2005) to a record high of 46.4°C (1994).
Rainfall in May is about average for rainfall, averaging 4 mm, with a wettest year of 36 mm.
A good time to visit Mecca
May is a good time to visit Mecca, with days averaging 40.5°C and nights around 25.8°C (mean 33.2°C, warmer than Mecca's yearly average) and low rainfall. January 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 | 41.6°C | 33.8°C | 26.0°C | 45.2°C | 19.8°C | 4 mm | 21% | 3.2 m/s | 7.4 |
| 2024 | 40.2°C | 32.7°C | 25.2°C | 45.2°C | 19.7°C | 11 mm | 29% | 2.9 m/s | 7.6 |
| 2023 | 39.4°C | 32.3°C | 25.2°C | 43.4°C | 20.5°C | 17 mm | 31% | 2.9 m/s | 7.5 |
| 2022 | 42.8°C | 34.6°C | 26.4°C | 45.7°C | 19.9°C | 0 mm | 18% | 3.3 m/s | 7.5 |
| 2021 | 40.3°C | 33.1°C | 25.9°C | 45.6°C | 21.7°C | 9 mm | 28% | 2.6 m/s | 7.7 |
| 2020 | 40.4°C | 33.2°C | 26.0°C | 44.2°C | 20.4°C | 20 mm | 27% | 3 m/s | 7.2 |
| 2019 | 40.5°C | 33.5°C | 26.6°C | 44.2°C | 23.6°C | 10 mm | 28% | 2.8 m/s | 7.2 |
| 2018 | 41.2°C | 33.7°C | 26.2°C | 45.1°C | 20.0°C | 0 mm | 22% | 3.4 m/s | 7.5 |
| 2017 | 40.7°C | 34.0°C | 27.4°C | 45.6°C | 22.8°C | 6 mm | 28% | 3.1 m/s | 7.1 |
| 2016 | 41.5°C | 33.9°C | 26.4°C | 46.1°C | 24.6°C | 1 mm | 24% | 2.9 m/s | 7.6 |
| 2015 | 41.0°C | 33.9°C | 26.8°C | 44.5°C | 24.6°C | 10 mm | 26% | 3.2 m/s | 7.1 |
| 2014 | 39.8°C | 32.7°C | 25.6°C | 44.2°C | 19.5°C | 0 mm | 25% | 3.2 m/s | 7.3 |
| 2013 | 40.7°C | 33.2°C | 25.7°C | 45.2°C | 21.5°C | 2 mm | 26% | 3 m/s | 7.5 |
| 2012 | 41.7°C | 34.2°C | 26.7°C | 45.8°C | 23.3°C | 0 mm | 19% | 3.1 m/s | 7.5 |
| 2011 | 40.9°C | 33.2°C | 25.6°C | 44.8°C | 18.5°C | 0 mm | 22% | 3 m/s | 7.3 |
| 2010 | 41.6°C | 33.9°C | 26.2°C | 45.2°C | 22.9°C | 4 mm | 23% | 3 m/s | 7.6 |
| 2009 | 41.1°C | 33.2°C | 25.4°C | 44.4°C | 22.2°C | 9 mm | 24% | 3.3 m/s | 7.3 |
| 2008 | 40.7°C | 33.1°C | 25.4°C | 44.1°C | 19.8°C | 7 mm | 21% | 3 m/s | 7.4 |
| 2007 | 41.2°C | 34.0°C | 26.9°C | 43.8°C | 24.2°C | 0 mm | 21% | 3.2 m/s | 7.4 |
| 2006 | 40.2°C | 33.3°C | 26.5°C | 43.8°C | 22.3°C | 0 mm | 23% | 3.2 m/s | 7.2 |
| 2005 | 38.2°C | 30.8°C | 23.4°C | 44.6°C | 14.8°C | 1 mm | 30% | 2.7 m/s | 7.7 |
| 2004 | 42.6°C | 34.2°C | 25.8°C | 45.5°C | 21.0°C | 0 mm | 16% | 3.1 m/s | 7.9 |
| 2003 | 41.7°C | 34.4°C | 27.1°C | 45.9°C | 24.4°C | 3 mm | 22% | 3.1 m/s | 7.3 |
| 2002 | 40.8°C | 32.7°C | 24.5°C | 46.0°C | 18.5°C | 0 mm | 19% | 2.9 m/s | 7.9 |
| 2001 | 41.0°C | 33.3°C | 25.6°C | 44.8°C | 20.2°C | 0 mm | 20% | 3.2 m/s | 7.8 |
| 2000 | 41.5°C | 33.8°C | 26.2°C | 45.4°C | 23.5°C | 0 mm | 23% | 3.2 m/s | 7.4 |
| 1999 🔥 | 42.6°C | 35.0°C | 27.3°C | 45.4°C | 25.3°C | 0 mm | 20% | 3 m/s | 7.5 |
| 1998 | 39.8°C | 32.9°C | 25.9°C | 45.3°C | 20.6°C | 2 mm | 25% | 2.9 m/s | 7.5 |
| 1997 | 38.9°C | 32.2°C | 25.6°C | 42.5°C | 21.4°C | 1 mm | 25% | 2.9 m/s | 7.1 |
| 1996 | 40.2°C | 33.5°C | 26.8°C | 43.9°C | 22.7°C | 0 mm | 28% | 2.8 m/s | 6.9 |
| 1995 | 39.5°C | 32.5°C | 25.6°C | 43.3°C | 20.0°C | 0 mm | 26% | 2.9 m/s | 6.9 |
| 1994 | 39.6°C | 32.8°C | 26.0°C | 46.4°C | 22.0°C | 0 mm | 26% | 3 m/s | 7 |
| 1993 | 39.0°C | 32.1°C | 25.2°C | 44.1°C | 21.4°C | 0 mm | 30% | 3.1 m/s | 6.9 |
| 1992 | 39.2°C | 31.8°C | 24.4°C | 43.4°C | 17.7°C | 6 mm | 26% | 3 m/s | 7.2 |
| 1991 | 41.6°C | 34.3°C | 27.1°C | 45.2°C | 24.4°C | 3 mm | 28% | 3 m/s | 6.8 |
| 1990 | 42.5°C | 33.9°C | 25.2°C | 45.7°C | 18.8°C | 0 mm | 19% | 3.2 m/s | 7.4 |
| 1989 | 40.8°C | 33.4°C | 26.1°C | 45.2°C | 22.7°C | 1 mm | 23% | 3.1 m/s | 7.3 |
| 1988 | 42.0°C | 34.4°C | 26.9°C | 45.9°C | 23.9°C | 0 mm | 21% | 2.9 m/s | 6.7 |
| 1987 🌧️ | 38.0°C | 31.7°C | 25.3°C | 42.5°C | 23.1°C | 36 mm | 37% | 2.6 m/s | 6.4 |
| 1986 ❄️ | 38.0°C | 30.8°C | 23.6°C | 42.6°C | 17.3°C | 0 mm | 26% | 3.3 m/s | 7.2 |
| 1985 | 38.6°C | 31.7°C | 24.8°C | 42.9°C | 23.2°C | 27 mm | 32% | 2.7 m/s | 7.1 |
| 1984 | 40.1°C | 32.5°C | 25.0°C | 44.3°C | 22.0°C | 0 mm | 23% | 3 m/s | 6.8 |
| 1983 | 38.5°C | 31.9°C | 25.4°C | 41.6°C | 22.4°C | 0 mm | 31% | 3 m/s | — |
| 1982 | 39.1°C | 32.3°C | 25.4°C | 42.2°C | 22.5°C | 1 mm | 30% | 3.1 m/s | — |
| 1981 | 40.6°C | 33.1°C | 25.7°C | 45.6°C | 23.5°C | 5 mm | 24% | 3.1 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 40.5°C with lows near 25.8°C (mean 33.2°C), based on 45 years of NASA POWER data.
May averages 4 mm of rainfall in Mecca, about average for rainfall. The wettest on record was 36 mm in 1987.
The hottest May reached 46.4°C in 1994. The coldest dipped to 14.8°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°C. Daytime highs moved from 39.4°C to 40.9°C and overnight lows from 25.3°C to 25.7°C over the same span.
May is one of the warmer months of the year in Mecca and about average for rainfall, so plan for around 40.5°C daytime highs and 25.8°C at night.
Not quite — May is the 8th coolest month in Mecca, averaging 33.2°C.
For May in Mecca, pack light, breathable clothing and sun protection, with typical highs of 40.5°C and lows of 25.8°C.
Relative humidity in May averages 25% — relatively dry.
Average wind speed in May is 3 m/s. The windiest May on record averaged 3.4 m/s (2018).
The wettest May on record was 1987 with 36 mm. On average, May sees 4 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 Mecca 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.
