What is the hottest month in Miami?

August is Miami's hottest month, with the highest average daily high of the year. The month-by-month table above shows Miami's exact average high and low for each month, based on the 1991–2020 climate normals — the standard 30-year reference period meteorologists use.

What is the coldest month in Miami?

January is Miami's coldest month, with the lowest average daily low of the year. The averages-by-month chart above gives the exact average high and low for every month, so you can see how cold a typical winter day runs.

How much does it rain in Miami?

Miami's total annual precipitation and its wettest and driest months are shown in the rainfall-by-month section above. Those figures are 1991–2020 normals — the average monthly precipitation total across that 30-year window — so they reflect a typical year rather than any single wet or dry season.

What months are best to visit Miami?

The most comfortable months in Miami are usually the shoulder seasons — spring and fall — when temperatures sit between the summer peak and winter low and rainfall is moderate. Compare the average high, low, and precipitation for each month in the table above to pick the window that fits the weather you want.

Has Miami gotten hotter?

Yes. The warming-stripes chart above plots Miami's annual mean temperature for every complete year of station data from 1948 to 2025, and the trend line fitted to 1948–2025 rises about 3.5°F (+0.45°F per decade) — recent decades average warmer than the start of that window.

What is the record high temperature in Miami?

Miami's all-time record high — the hottest single day in the station record — is shown in the records section above, along with the date it occurred. Records are drawn from the nearest long-term weather station's full daily history, which begins in 1948, so they capture the most extreme heat on record, not just a typical summer day.

What is the record low temperature in Miami?

Miami's all-time record low and the date it was set appear in the records section above. Like the record high, it comes from the station's full daily history back to 1948, so it reflects the coldest day on record rather than an average winter low.

Miami, Florida Climate

Miami weather by month — average highs and lows, rainfall, all-time records, and the warming record since 1948

Hottest month: 91°FAugust average high
Coldest month: 61°FJanuary average low
Precipitation: 67.4 ina year
Wettest month: June10.5 in on average

1991–2020 NOAA climate normals

At 10:05 AM EDT on Sep 21 it was 81°F in Miami — about the 81°F typical for that hour (estimated from the Sep 21 normal high of 88°F and low of 76°F, interpolated from the monthly normals).

Miami weather by month

Average high, low, and rainfall for every month, from Miami’s 1991–2020 climate normals, the standard 30-year reference period. Each band runs from the month’s average low to its average high: a tall band is a big day-to-night swing.

76°61°

1.8″Jan

78°63°

2.1″Feb

81°66°

2.5″Mar

84°70°

3.4″Apr

87°73°

6.3″May

89°76°

10.5″Jun

91°78°

7.4″Jul

91°78°

9.6″Aug

89°77°

10.2″Sep

86°74°

7.7″Oct

81°68°

3.5″Nov

78°64°

2.4″Dec

Average high → low (°F)Rainfall (inches)1991–2020 normals

Miami monthly weather averages — average high, average low, and rainfall for each month, from the 1991–2020 U.S. Climate Normals (NOAA).
Month	Avg High	Avg Low	Rainfall
January	76°F	61°F	1.8 in
February	78°F	63°F	2.1 in
March	81°F	66°F	2.5 in
April	84°F	70°F	3.4 in
May	87°F	73°F	6.3 in
June	89°F	76°F	10.5 in
July	91°F	78°F	7.4 in
August	91°F	78°F	9.6 in
September	89°F	77°F	10.2 in
October	86°F	74°F	7.7 in
November	81°F	68°F	3.5 in
December	78°F	64°F	2.4 in
Annual	84°F	71°F	67.4 in

Miami’s warming record since 1948

Miami has warmed 3.5°F since 1948 (+0.45°F per decade, 1948–2025 trend)

Not what a typical year looks like, but how the typical year has changed. Each stripe is one complete year’s average temperature at the station, 1948 to 2025, colored against the mean of those years: blue for cooler years, red for warmer ones. The figure under the stripes is the least-squares trend line fitted to 1948–2025 — Miami averages about 3.5°F warmer by that trend than in 1948.

Compared with the national rankingThe fastest-warming cities ranking fits every city to the same years, 1970–2025, so rates compare like for like. Over that window Miami warms at +0.55°F per decade, #33 of 66. The figure above uses the station’s own record, 1948–2025, so the two rates differ.

Miami rainfall by month

Miami averages 67.4 inches of precipitation a year. The wettest month is June and the driest is January.

Miami temperature records

All-time record high: 98°Fset August 6, 1954
All-time record low: 30°Fset January 22, 1985

Records are drawn from the nearest long-term weather station’s full daily history, so they capture the most extreme single day Miami has recorded — not a typical seasonal high or low.

Frequently asked

What is the hottest month in Miami?: August is Miami's hottest month, with the highest average daily high of the year. The month-by-month table above shows Miami's exact average high and low for each month, based on the 1991–2020 climate normals — the standard 30-year reference period meteorologists use.
What is the coldest month in Miami?: January is Miami's coldest month, with the lowest average daily low of the year. The averages-by-month chart above gives the exact average high and low for every month, so you can see how cold a typical winter day runs.
How much does it rain in Miami?: Miami's total annual precipitation and its wettest and driest months are shown in the rainfall-by-month section above. Those figures are 1991–2020 normals — the average monthly precipitation total across that 30-year window — so they reflect a typical year rather than any single wet or dry season.
What months are best to visit Miami?: The most comfortable months in Miami are usually the shoulder seasons — spring and fall — when temperatures sit between the summer peak and winter low and rainfall is moderate. Compare the average high, low, and precipitation for each month in the table above to pick the window that fits the weather you want.
Has Miami gotten hotter?: Yes. The warming-stripes chart above plots Miami's annual mean temperature for every complete year of station data from 1948 to 2025, and the trend line fitted to 1948–2025 rises about 3.5°F (+0.45°F per decade) — recent decades average warmer than the start of that window.
What is the record high temperature in Miami?: Miami's all-time record high — the hottest single day in the station record — is shown in the records section above, along with the date it occurred. Records are drawn from the nearest long-term weather station's full daily history, which begins in 1948, so they capture the most extreme heat on record, not just a typical summer day.
What is the record low temperature in Miami?: Miami's all-time record low and the date it was set appear in the records section above. Like the record high, it comes from the station's full daily history back to 1948, so it reflects the coldest day on record rather than an average winter low.