expatwhy.

Harar weather by month

Harar runs from about 18°C in August to 22°C in March, with August the wettest month at 193 mm.

warmest month

March

22°C

coolest month

August

18°C

wettest month

August

193 mm

worst air month

October

52 µg/m³

The whole year, month by month.

Monthly climate normals for Harar
MonthAvg tempRainSunPM2.5
January19°C2 mm345 h41
February21°C4 mm316 h38
March22°C37 mm342 h34
April20°C95 mm317 h39
May21°C59 mm351 h35
June20°C24 mm326 h26
July19°C112 mm277 h22
August18°C193 mm246 h23
September18°C110 mm320 h39
October18°C72 mm328 h52
November18°C27 mm339 h42
December18°C0 mm355 h41

About 3,862 hours of sun a year. Roughly 73 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 2026-05-24. Full method, licences and the list of sources we rejected are on the methodology page.