expatwhy.

Positano weather by month

Positano runs from about 10°C in December to 28°C in August, with February the wettest month at 161 mm.

warmest month

August

28°C

coolest month

December

10°C

wettest month

February

161 mm

worst air month

December

17 µg/m³

The whole year, month by month.

Monthly climate normals for Positano
MonthAvg tempRainSunPM2.5
January11°C143 mm204 h8
February12°C161 mm241 h11
March13°C115 mm302 h16
April15°C41 mm339 h12
May18°C79 mm363 h8
June23°C34 mm394 h10
July27°C12 mm428 h7
August28°C18 mm394 h9
September21°C129 mm316 h5
October19°C142 mm272 h5
November14°C78 mm241 h8
December10°C139 mm224 h17

About 3,718 hours of sun a year. Roughly 109 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.