expatwhy.

Aswan weather by month

Aswan runs from about 17°C in January to 37°C in June, with March the wettest month at 12 mm.

warmest month

June

37°C

coolest month

January

17°C

wettest month

March

12 mm

worst air month

May

54 µg/m³

The whole year, month by month.

Monthly climate normals for Aswan
MonthAvg tempRainSunPM2.5
January17°C0 mm309 h34
February18°C0 mm294 h49
March24°C12 mm339 h45
April29°C0 mm358 h36
May32°C0 mm379 h54
June37°C0 mm375 h54
July36°C0 mm378 h34
August37°C4 mm370 h45
September34°C0 mm345 h44
October28°C0 mm341 h37
November21°C0 mm324 h31
December18°C0 mm313 h27

About 4,125 hours of sun a year. Roughly 1 rainy days a year.

These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.

where these numbers come from

  • · Temperature, rainfall and sunshine: ECMWF ERA5 reanalysis climate normals via Open-Meteo (CC BY 4.0), fetched once and stored.
  • · PM2.5: Copernicus CAMS reanalysis, monthly means. Modelled, not station readings; near coasts CAMS counts sea salt as PM2.5 and reads high.

Last reviewed 2026-05-25. Full method, licences and the list of sources we rejected are on the methodology page.