Miami or Nice: which climate?
Miami (United States) has a tropical savanna climate, whereas Nice (France) has a warm-summer mediterranean climate, according to the Köppen-Geiger classification.
The values compared here are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme. The same method and the same period apply to Miami and to Nice.
Miami is warmer than Nice by 11.1 °C in annual average: 24.4 °C against 13.3 °C.
Miami gets more rain than Nice: 1,041 mm per year against 859 mm.
Miami gets 10.6 hours of sunshine per day on average, against 10.2 hours in Nice.
Nice has warmed by +2.3 °C between 1940 and 2025, against +1.0 °C in Miami. Nice is therefore warming faster than Miami. Both trends are statistically significant.
Miami averages 45 hot days (≥ 30 °C) and 0 frost days per year; Nice averages 1 and 11.
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
| Indicator | Miami | Nice | Difference |
|---|---|---|---|
| Mean daily temperature | 24.4 °C | 13.3 °C | -11.1 °C |
| Average daily high | 26.7 °C | 16.7 °C | -10.0 °C |
| Average daily low | 22.3 °C | 10.0 °C | -12.3 °C |
| Annual rainfall | 1,041 mm | 859 mm | -182 mm |
| Sunshine / day | 10.6 h | 10.2 h | -0.4 h |
| Hot days (≥ 30 °C) | 45 d/yr | 1 d/yr | -44 d/yr |
| Frost days (< 0 °C) | 0 d/yr | 11 d/yr | +11 d/yr |
| Rainy days (≥ 1 mm) | 162 d/yr | 109 d/yr | -53 d/yr |
| Mean relative humidity | 75 % | 76 % | negligible |
| Average peak wind | 21.3 km/h | 11.1 km/h | -10.2 km/h |
A difference is only reported when it exceeds the resolution of the data. ERA5 is a reanalysis on a grid of about 31 km: two nearby cities often fall in the same cell, and below half a degree you are reading the grid, not the climate.