Liverpool weather by month
Liverpool runs from about 5°C in January to 16°C in August, with September the wettest month at 162 mm.
warmest month
August
16°C
coolest month
January
5°C
wettest month
September
162 mm
worst air month
March
11 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 5°C | 108 mm | 105 h | 7 |
| February | 7°C | 128 mm | 93 h | 7 |
| March | 8°C | 121 mm | 183 h | 11 |
| April | 9°C | 118 mm | 240 h | 7 |
| May | 14°C | 107 mm | 297 h | 6 |
| June | 14°C | 69 mm | 337 h | 5 |
| July | 16°C | 143 mm | 276 h | 5 |
| August | 16°C | 77 mm | 286 h | 6 |
| September | 14°C | 162 mm | 200 h | 5 |
| October | 12°C | 94 mm | 182 h | 8 |
| November | 8°C | 98 mm | 104 h | 5 |
| December | 8°C | 115 mm | 70 h | 6 |
About 2,373 hours of sun a year. Roughly 135 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.