Humidity & dew point in Saudi Arabia
Temperature alone never tells the story in Saudi Arabia: dew point is the real measure of discomfort. This page shows current humidity and the computed dew point for every city, ranked against the standard comfort scale.
Humidity now across Saudi Arabia
When does humidity peak in Saudi Arabia?
From the climate normals (10-year archive): each city's most humid month and its average humidity.
| City | Most humid month | Avg humidity |
|---|---|---|
| Riyadh | December | 46% |
| Jeddah | September | 70% |
| Mecca | January | 58% |
| Medina | January | 42% |
| Dammam | December | 65% |
| Abha | January | 65% |
Dew-point comfort scale
| Dew point | Feel | How it feels |
|---|---|---|
| < 10°C | Dry | Dry air — comfortable for everyone. |
| 10–16°C | Comfortable | Moderate moisture, barely noticeable. |
| 16–21°C | Noticeable | Humidity you can feel; the air turns heavy. |
| 21–24°C | Sticky | Sticky and unpleasant for most people. |
| ≥ 24°C | Oppressive | Oppressive tropical humidity — limit outdoor effort. |
Why dew point instead of relative humidity?
Relative humidity moves with temperature: 60% at 20°C is pleasant, but 60% at 35°C is stifling. Dew point measures the actual amount of water vapour in the air, which makes it the honest indicator of how it feels.
Along the Gulf and Red Sea coasts the dew point can exceed 27°C in summer — among the highest values on Earth — while inland cities like Riyadh or Sana'a stay far drier.