Najrān is bathed in sunshine — 350 sunny days a year. Summers are intensely hot — air conditioning is essential. On the other hand, air quality is a concern.
Najrān, Saudi Arabia is a 506K-resident city with 350 sunny days and 0 frost days annually and an annual PM2.5 of 38.2 µg/m³. A city in Saudi Arabia.
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Dinner outside
Monthly climate metrics across temperature, precipitation, wind, and UV.
| Metric | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature | |||||||||||||
| Daily high°C | 27 | 29 | 31 | 33 | 35 | 37 | 38 | 37 | 35 | 30 | 27 | 25 | 32 |
| Daily mean°C | 20 | 23 | 26 | 28 | 32 | 34 | 33 | 33 | 31 | 26 | 23 | 20 | 27 |
| Daily low°C | 12 | 14 | 18 | 21 | 24 | 25 | 25 | 25 | 23 | 19 | 15 | 12 | 19 |
| Thermal comfort | |||||||||||||
| High feelsDaily high feels-like°C | 29 | 32 | 34 | 35 | 37 | 38 | 39 | 39 | 36 | 31 | 30 | 29 | 34 |
| Mean feelsDaily mean feels-like°C | 19 | 22 | 25 | 29 | 32 | 33 | 32 | 32 | 31 | 26 | 23 | 21 | 27 |
| Low feelsDaily low feels-like°C | 5 | 6 | 11 | 16 | 20 | 21 | 20 | 20 | 17 | 11 | 9 | 5 | 13 |
| Humidity | |||||||||||||
| HumidityRelative humidity% | 34 | 29 | 26 | 26 | 17 | 13 | 20 | 19 | 15 | 19 | 27 | 30 | 23 |
| Dewpoint°C | 4.3 | 2.9 | 4.1 | 8.2 | 3.5 | 1.0 | 7.3 | 6.9 | 0.3 | 0.2 | 2.5 | 1.5 | 3.6 |
| Precipitation | |||||||||||||
| Rainfallmm | 0 | 0 | 3 | 10 | 1 | 0 | 14 | 3 | 0 | 0 | 0 | 0 | 31 |
| Rain days≥1mm | 0 | 0 | 0 | 4 | 0 | 0 | 3 | 1 | 0 | 0 | 0 | 0 | 8 |
| Wind | |||||||||||||
| Wind avgm/s | 3.0 | 3.1 | 3.4 | 2.6 | 3.7 | 4.0 | 4.6 | 4.2 | 3.7 | 3.5 | 3.4 | 3.0 | 3.5 |
| Wind gustsm/s | 5.4 | 5.8 | 6.0 | 5.6 | 5.9 | 6.5 | 7.0 | 6.6 | 6.0 | 5.6 | 5.1 | 5.1 | 5.9 |
| Sun & UV | |||||||||||||
| Sunshinehrs/day | 9.8 | 9.9 | 9.6 | 10.3 | 10.7 | 10.4 | 9.2 | 9.3 | 9.8 | 11.0 | 10.9 | 10.0 | 10.1 |
| Clear skyindex | 79% | 83% | 75% | 58% | 72% | 77% | 52% | 55% | 73% | 82% | 94% | 94% | 75% |
| UV indexmax avg | 8.9 | 10.7 | 12.0 | 11.9 | 11.7 | 11.5 | 9.9 | 10.3 | 11.4 | 10.6 | 8.6 | 8.1 | 10.5 |
Najrān offers a solid outdoor season. Dinner outside is comfortable 8/12 months — impressive, while lunch outside works 7/12 months.
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Air Quality
Najrān reports an annual PM2.5 of 38.2 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
Najrān reports an annual PM2.5 of 38.2 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
PM2.5 annual average of 38.2 µg/m³ exceeds the WHO interim target of 15 µg/m³. The WHO guideline value is 5 µg/m³.
Data sources: WHO (air quality), OECD (safety).
Why not Najrān? Honestly, air quality is a genuine health trade-off — Najrān's annual PM2.5 of 38.2 µg/m³ exceeds the EU limit and WHO standards by a wide margin, with respiratory impacts documented at these levels.
Poor fit