Miami climate
Miami is warmest in August, with average highs of 30 °C, and coldest in January, when nights average 18 °C. June is the wettest month (159 mm) and December the driest (41 mm). Figures are 1991–2020 climate normals.
Across a full year Miami averages 1,083 mm of rain and 284 days above 25 °C.
United States · 2 m elevation · population 487,014 · 1991–2020 normals
Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month
- Warmest month August 30 °C
- Coldest month January 18 °C
- Driest month December 41 mm
- Wettest month June 159 mm
- Least cloud April 43 % cloud
- Hottest on record April 35 °C
- Coldest on record January 3.3 °C
- Warmest sea August 30 °C
What to expectMiami through the year
Miami has a clear annual cycle: average daily highs run from 23 °C in January to 30 °C in August, a swing of 7.3 °C in mean temperature across the year.
Counted across a normal year, 284 days a year reach 25 °C, 53 of them reach 30 °C. The warmest reading in the 1991–2020 record is 35 °C, in April.
Rain is strongly seasonal. June averages 159 mm against 41 mm in December — 3.9 times as much. Planning around the dry months matters more here than planning around temperature.
The sea off Miami is warmest in August at 30 °C and coldest in February at 25 °C. Sea temperature lags the air by a month or two, which is why late summer swims warmer than early summer at the same air temperature.
Month by month
| Month | Avg high | Rainfall | Cloud |
|---|---|---|---|
| January | 23.4 °C | 52 mm | 50 % |
| February | 24.2 °C | 42 mm | 45 % |
| March | 25.2 °C | 49 mm | 44 % |
| April | 26.8 °C | 56 mm | 43 % |
| May | 28.2 °C | 97 mm | 45 % |
| June | 29.2 °C | 159 mm | 65 % |
| July | 30.1 °C | 113 mm | 61 % |
| August | 30.1 °C | 142 mm | 63 % |
| September | 29.3 °C | 157 mm | 66 % |
| October | 27.9 °C | 119 mm | 55 % |
| November | 25.8 °C | 55 mm | 49 % |
| December | 24.3 °C | 41 mm | 49 % |
Temperature month by month
| Month | Avg high | Avg low | Mean | Record high | Record low | Days above 25 °C | Days above 30 °C | Days below 0 °C |
|---|---|---|---|---|---|---|---|---|
| January | 23.4 °C | 18.2 °C | 20.5 °C | 28.3 °C | 3.3 °C | 9 | 0 | 0 |
| February | 24.2 °C | 19.0 °C | 21.3 °C | 30.4 °C | 5.4 °C | 12 | 0 | 0 |
| March | 25.2 °C | 19.8 °C | 22.2 °C | 31.2 °C | 7.7 °C | 18 | 0 | 0 |
| April | 26.8 °C | 21.7 °C | 24.0 °C | 35.4 °C | 14.0 °C | 25 | 1 | 0 |
| May | 28.2 °C | 23.4 °C | 25.6 °C | 32.8 °C | 15.2 °C | 31 | 3 | 0 |
| June | 29.2 °C | 25.2 °C | 27.0 °C | 33.9 °C | 21.7 °C | 30 | 8 | 0 |
| July | 30.1 °C | 25.9 °C | 27.8 °C | 33.3 °C | 22.7 °C | 31 | 16 | 0 |
| August | 30.1 °C | 26.1 °C | 27.9 °C | 33.5 °C | 22.7 °C | 31 | 17 | 0 |
| September | 29.3 °C | 25.5 °C | 27.1 °C | 32.7 °C | 22.2 °C | 30 | 7 | 0 |
| October | 27.9 °C | 24.1 °C | 25.7 °C | 31.4 °C | 12.5 °C | 30 | 1 | 0 |
| November | 25.8 °C | 21.6 °C | 23.5 °C | 31.4 °C | 9.0 °C | 22 | 0 | 0 |
| December | 24.3 °C | 19.7 °C | 21.8 °C | 30.1 °C | 5.1 °C | 15 | 0 | 0 |
Rain, sun and wind month by month
| Month | Rainfall | Wet days | Daylight | Cloud cover | Humidity | Wind | Sea temp |
|---|---|---|---|---|---|---|---|
| January | 52 mm | 8 | 11 h/day | 50 % | 71 % | 23 km/h | 24.6 °C |
| February | 42 mm | 7 | 11 h/day | 45 % | 72 % | 22 km/h | 24.5 °C |
| March | 49 mm | 7 | 12 h/day | 44 % | 69 % | 23 km/h | 24.8 °C |
| April | 56 mm | 8 | 13 h/day | 43 % | 69 % | 23 km/h | 25.8 °C |
| May | 97 mm | 11 | 13 h/day | 45 % | 73 % | 21 km/h | 27.0 °C |
| June | 159 mm | 20 | 14 h/day | 65 % | 80 % | 18 km/h | 28.3 °C |
| July | 113 mm | 20 | 14 h/day | 61 % | 79 % | 17 km/h | 29.2 °C |
| August | 142 mm | 22 | 13 h/day | 63 % | 79 % | 17 km/h | 29.7 °C |
| September | 157 mm | 21 | 12 h/day | 66 % | 81 % | 18 km/h | 29.3 °C |
| October | 119 mm | 15 | 12 h/day | 55 % | 77 % | 21 km/h | 28.3 °C |
| November | 55 mm | 8 | 11 h/day | 49 % | 72 % | 22 km/h | 26.8 °C |
| December | 41 mm | 8 | 11 h/day | 49 % | 73 % | 22 km/h | 25.7 °C |
Where Miami ranks
| Ranking | Position | Value |
|---|---|---|
| Best beach destinations in the world in April | 48th of 50 | 90/100 |
Planning a trip? See the best time to visit Miami.
QuestionsCommon questions about Miami’s climate
When is the best time to visit Miami?
That depends on what you want, so the honest answer is a comparison rather than a single month. January, February, December sit closest to 20 °C on average, August is the warmest month and December the driest. The month-by-month table above has the full picture.
How hot does Miami get?
In August, the warmest month, daily highs average 30 °C. About 53 days a year pass 30 °C. The highest value in the 1991–2020 record is 35 °C.
How cold does it get in winter?
Nights average 18 °C in January, the coldest month. Freezing nights are not part of a normal year here.
Which month is wettest in Miami?
June, averaging 159 mm over 20 days with rain. The driest month is December with 41 mm. The year as a whole averages 1,083 mm.
Are these figures a forecast?
No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Miami rather than what any particular week will bring. Individual years can differ substantially from the normal.
Data sources and method
- ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
- Open-Meteo — Open-Meteo.com. CC BY 4.0
- NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
- GeoNames — GeoNames.org. CC BY 4.0
- Normal period
- 1991–2020
- Data point
- 25.774°, -80.194° , 2 m above sea level (the coordinates the reanalysis values are taken for)
- Dataset version
- era5-1991-2020-scores1.1
- Last processed
Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.
Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.