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Miami vs Seattle weather: climate comparison
Miami is the warmer of the two, averaging 77°F (25°C) over the year against 52°F (11°C) in Seattle. Seattle is wetter, with 50.2 in (1275 mm) of precipitation a year to Miami's 45.4 in (1154 mm). Below: every month side by side, from 30 years of ERA5 data (1996–2025).
- Mean temperature
- 24.8°C Miami
10.9°C Seattle - Annual precipitation
- 1154.4 mm Miami
1274.6 mm Seattle - Rainy days a year
- 162 Miami
154 Seattle - Sunshine per day
- 10.5 h Miami
8.3 h Seattle
Month by month
| Month | Miami | Seattle |
|---|---|---|
| January | 23.3°C | 7.3°C |
| February | 24.3°C | 8.4°C |
| March | 25.4°C | 10.6°C |
| April | 26.9°C | 13.4°C |
| May | 28.4°C | 16.9°C |
| June | 29.3°C | 20.0°C |
| July | 30.3°C | 24.0°C |
| August | 30.4°C | 24.2°C |
| September | 29.5°C | 20.4°C |
| October | 28.1°C | 14.6°C |
| November | 26.0°C | 9.8°C |
| December | 24.4°C | 6.9°C |
Year at a glance
| Measure | Miami | Seattle |
|---|---|---|
| Mean annual temperature | 24.8°C | 10.9°C |
| Warmest month (avg high) | Aug · 30°C | Aug · 24°C |
| Coldest month (avg low) | Jan · 18°C | Feb · 2°C |
| Annual range (warmest high − coldest low) | 13°C | 22°C |
| Annual precipitation | 1154.4 mm | 1274.6 mm |
| Rainy days per year | 162 | 154 |
| Wettest / driest month | Jun / Feb | Nov / Jul |
| Average sunshine per day | 10.5 h | 8.3 h |
In short: Miami is the warmest overall (24.8°C mean); Seattle gets the most precipitation (1274.6 mm a year); Miami is the sunniest (10.5 h a day on average); Miami has the smallest swing between its warmest and coldest months.
Record high 1996–2025: Miami 36.2°C (2024-05-16), Seattle 37.9°C (2021-06-28). Record low: Miami 3.3°C (2010-01-10), Seattle -14.5°C (1996-01-30).
Source: Open-Meteo Historical Weather API (CC BY 4.0). Values are ERA5 reanalysis model data on a ~9–25 km grid, not readings from a weather station, so a single town’s thermometer can differ by a few degrees and local showers can be missed. Monthly means of daily ERA5 values, 1996–2025, for the grid cells nearest Miami (25.76, -80.20) and Seattle (47.63, -122.32).
Which months differ most?
The gap in average highs is widest in December, when Miami runs 32°F / 18°C warmer, and narrowest in July (11°F / 6°C apart). The biggest rainfall difference is in December: Seattle gets 5.1 in (129 mm) more on average.
Add a third or fourth city, or swap in any other place, in the full comparison tool. For one city in depth, see the Miami climate and Seattle climate pages.
Compare Miami or Seattle with another city
Questions people ask
Is Miami warmer than Seattle?
Miami is warmer on average: its mean annual temperature is 77°F (25°C) against 52°F (11°C) in Seattle (ERA5, 1996–2025).
Which gets more rain, Miami or Seattle?
Seattle, with about 50.2 in (1275 mm) of precipitation a year and 154 days with at least 1 mm, compared with 45.4 in (1154 mm) and 162 days in Miami.
Which is sunnier, Miami or Seattle?
Miami averages more sunshine: 10.5 h a day against 8.3 h. Sunshine duration is modelled from cloud cover.
How reliable is this comparison?
Both cities use the same 30-year reanalysis, so differences are consistent. Absolute values describe a grid cell several kilometres wide and can differ by a degree or two from the airport station.