Edinburgh weather by month
Edinburgh runs from about 4°C in January to 15°C in August, with May the wettest month at 170 mm.
warmest month
August
15°C
coolest month
January
4°C
wettest month
May
170 mm
worst air month
October
7 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 4°C | 85 mm | 117 h | 6 |
| February | 6°C | 73 mm | 125 h | 5 |
| March | 6°C | 100 mm | 169 h | 6 |
| April | 8°C | 130 mm | 227 h | 5 |
| May | 13°C | 170 mm | 295 h | 4 |
| June | 13°C | 61 mm | 358 h | 4 |
| July | 14°C | 96 mm | 289 h | 5 |
| August | 15°C | 97 mm | 310 h | 5 |
| September | 12°C | 55 mm | 200 h | 4 |
| October | 11°C | 99 mm | 165 h | 7 |
| November | 7°C | 39 mm | 124 h | 4 |
| December | 7°C | 103 mm | 74 h | 5 |
About 2,453 hours of sun a year. Roughly 112 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 2026-05-23. Full method, licences and the list of sources we rejected are on the methodology page.