Riyadh weather in May
May in Riyadh: sweltering, dry, with poor air quality — a fair time to visit.
#8 of 12 months in Riyadh · #577 of 604 destinations to visit in May · comfort 53/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Riyadh climate normals — May
| Daytime high | 39°C / 101°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 24°C / 75°F | |
| Feels like (high) | 36°C / 97°F | |
| Rainfall | 2 mm / 0.1 in | ☀️ dry |
| Rainy days | 0 days | |
| Humidity | 15% | 🌵 dry |
| Dew point | 1°C / 34°F | |
| Sunshine | 11.8 h/day | |
| Daylight | 13.3 h | |
| Wind | 21 km/h / 13 mph | |
| Air quality (US AQI) | 171 | ⚠️ unhealthy |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Riyadh in May — FAQ
- Is May a good time to visit Riyadh?
- May in Riyadh: sweltering, dry, with poor air quality — a fair time to visit. It ranks #8 of 12 months for Riyadh on SeasonMap's comfort score (53/100).
- What is the weather like in Riyadh in May?
- In May, Riyadh averages a daily high of 38.6°C and a low of 24°C, with about 1.5 mm of rain over roughly 0.4 rainy days.
- What is the air quality in Riyadh in May?
- Riyadh has a mean US Air Quality Index of about 171 in May.