Miami is 8.6°C (15.5°F) warmer by day, Miami has 16.1°C (29°F) warmer nights, Miami gets 266 mm (10.5 in) more rain a year.
Miami is at its warmest in August and coolest in January, while Washington peaks in July and bottoms out in January. Month for month, Miami is the warmer of the two in 12 of 12 months.
Miami is the wetter of the two, collecting 1,374 mm (54.1 in) of rain a year against 1,108 mm (43.6 in) in Washington. The most comfortable time to visit is January, February and December in Miami and May, June and September in Washington.
| Miami | Metric | Washington |
|---|---|---|
| 🌡️ Temperature | ||
| 79.7°F | 🌡️Average daytime high | 64.2°F |
| 75.4°F | 🌙Average nighttime low | 46.4°F |
| August | 🔥Hottest month | July |
| January | ❄️Coldest month | January |
| 🌧️ Rain | ||
| 54.1 in | 🌧️Annual rainfall | 43.6 in |
| June | ☔Wettest month | July |
| February | 🏜️Driest month | February |
| 💨 Climate | ||
| 76% | 💧Average humidity | 76% |
| 4.3 m/s | 💨Average wind speed | 2.7 m/s |
Overnight, Miami typically falls to around 24.1°C (75.4°F) while Washington settles near 8°C (46.4°F).
Miami is hottest in August and coldest in January, whereas Washington peaks in July and is coolest in January.
Miami sees the most rain in June and the least in February; Washington is wettest in July and driest in February.
Washington feels the more humid of the two, averaging 76% relative humidity against 76%.
For Washington, the pick of the year is May, June and September.
Month by month, here is the coldest night, the average day and the hottest afternoon each city can expect. Switch Compare to read rainfall, humidity, wind or solar instead, and Period to move between the long-term 45-year average and any single year — the shading is a quick warm-to-cool guide.
| Month | Miami | Washington | ||||
|---|---|---|---|---|---|---|
| Min | Avg | Max | Min | Avg | Max | |
| January | 67.3 | 70❄️ | 72.9 | 24.8 | 32❄️ | 39.2 |
| February | 68.9 | 71.6 | 74.3 | 26.8 | 34.9 | 43 |
| March | 70.3 | 73 | 75.9 | 33.3 | 42.6 | 52 |
| April | 73.4 | 75.9 | 78.4 | 42.8 | 52.9 | 63.1 |
| May | 77.2 | 79.2 | 81.3 | 53.2 | 62.8 | 72.1 |
| June | 80.4 | 82 | 83.8 | 63 | 72.3 | 81.5 |
| July | 82 | 83.5 | 85.1 | 68.9 | 78.3🔥 | 87.4 |
| August | 82.4 | 84🔥 | 85.6 | 67.5 | 76.8 | 86.2 |
| September | 81.3 | 82.9 | 84.4 | 60.4 | 70 | 79.5 |
| October | 78.4 | 80.1 | 81.9 | 48.2 | 57.9 | 67.6 |
| November | 73.9 | 75.9 | 78.1 | 37.6 | 46.4 | 55.2 |
| December | 70.2 | 72.5 | 74.8 | 29.5 | 36.7 | 44.1 |
| Annual Avg | 75.6 | 77.5 | 79.7 | 46.4 | 55.2 | 64.2 |
Min / mean / max temperature (°F). 🔥 marks each city's hottest month, ❄️ its coldest; shading runs cool blue to warm red.
The same figures plotted out, so the shape of a typical year is easier to see than in a grid. Where the two lines run close together Miami and Washington feel alike; where they separate, they are genuinely different places to be.
Hover or tap any point to read the exact figures. Miami Washington
See how Miami and Washington stack up against other cities. Swipe for more.
Choose which city to keep, then search for any other city in our database — we'll build the comparison for you.
Quick answers to the questions people ask most when comparing Miami and Washington — each drawn straight from the climate figures above.
Miami is the warmer of the two. It averages daytime highs of 26.5°C (79.7°F) against 17.9°C (64.2°F) in Washington — roughly 8.6°C (15.5°F) warmer by day. Nights are milder in Miami, with average lows of 24.1°C (75.4°F) versus 8°C (46.4°F).
Miami is hottest in August, averaging highs of about 29.8°C (85.6°F), while Washington peaks in July at around 30.8°C (87.5°F). That makes Washington the hotter of the two at the height of summer.
Washington gets colder. In its coldest month (January) overnight lows average about -4°C (24.8°F), compared with 19.6°C (67.2°F) at the low point of the year in Miami.
Miami is the wetter city, collecting about 1,374 mm (54.1 in) of rain a year versus 1,108 mm (43.6 in) in Washington. Miami is wettest in June and driest in February; Washington is wettest in July and driest in February.
Humidity is similar in both, averaging around 76% in Miami and 76% in Washington across the year.
The most comfortable months in Miami are January, February and December, when average temperatures are at their mildest.
Washington is at its most pleasant around May, June and September, based on the mildest average temperatures of the year.
Miami is the warmer city in all 12 months of the year. The gap is widest in January, about 21.1°C (38°F), and narrowest in July, about 2.9°C (5.2°F).
Washington has the bigger seasonal swing, about 25.7°C (46.3°F) between its coldest and hottest months versus 7.8°C (14°F) in Miami — so Miami has the steadier, more even climate.
It depends what matters most to you: choose Miami for warmer weather and pick Washington if you prefer drier conditions. There is no single "better" climate — it comes down to whether you value warmth, dryness or comfort most.
Every figure on this page is calculated from NASA POWER satellite climate data spanning 1981–2025 (45 years). The averages describe the long-term climate of Miami and Washington, not a single year's weather or a short-range forecast.
