Nafplio weather by month
Nafplio runs from about 10°C in January to 31°C in July, with December the wettest month at 94 mm.
warmest month
July
31°C
coolest month
January
10°C
wettest month
December
94 mm
worst air month
March
9 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 10°C | 23 mm | 235 h | 6 |
| February | 12°C | 68 mm | 239 h | 6 |
| March | 14°C | 42 mm | 315 h | 9 |
| April | 19°C | 6 mm | 352 h | 9 |
| May | 20°C | 11 mm | 360 h | 7 |
| June | 29°C | 1 mm | 411 h | 7 |
| July | 31°C | 4 mm | 416 h | 8 |
| August | 30°C | 12 mm | 399 h | 7 |
| September | 25°C | 9 mm | 343 h | 7 |
| October | 21°C | 0 mm | 315 h | 5 |
| November | 15°C | 19 mm | 264 h | 5 |
| December | 12°C | 94 mm | 224 h | 9 |
About 3,873 hours of sun a year. Roughly 28 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.