expatwhy.

Pamplona weather by month

Pamplona runs from about 5°C in January to 21°C in July, with October the wettest month at 183 mm.

warmest month

July

21°C

coolest month

January

5°C

wettest month

October

183 mm

worst air month

December

9 µg/m³

The whole year, month by month.

Monthly climate normals for Pamplona
MonthAvg tempRainSunPM2.5
January5°C40 mm170 h6
February8°C153 mm188 h6
March9°C108 mm247 h8
April10°C38 mm285 h6
May13°C80 mm347 h6
June17°C73 mm338 h7
July21°C3 mm388 h4
August21°C78 mm368 h8
September15°C127 mm275 h4
October14°C183 mm211 h6
November10°C34 mm215 h4
December6°C111 mm159 h9

About 3,191 hours of sun a year. Roughly 102 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 2026-05-27. Full method, licences and the list of sources we rejected are on the methodology page.