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Miami Beach, Florida climate

Am Tropical monsoon

Miami Beach has a mildly seasonal tropical climate (Tropical monsoon, Köppen Am). The hottest month is August with an average daily high near 31°C, while the coldest is January averaging around 16°C at night. Around 1452 mm of precipitation falls each year, peaking in September (215 mm) and easing off in December (57 mm).

☀️ All year

Hot

Daytime highs near 31°C most of the year.

About 29 days a year above 32 °C

🌙 Nights

Stays warm

Even the coolest nights stay near 16°C.

🌧️ Rain

Wet

About 1452 mm of rain a year.

Wettest in September

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

−0.2 °C vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

Miami Beach climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	23	24	25	26	28	30	31	31	31	29	26	25
Avg temp (°C)	20	21	22	24	26	27	28	28	28	26	23	21
Avg low (°C)	16	17	18	21	23	25	26	26	25	24	20	18
Precipitation (mm)	59	58	63	87	125	197	152	191	215	165	84	57

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	23	24	25	26	28	30
Avg temp (°C)	20	21	22	24	26	27
Avg low (°C)	16	17	18	21	23	25
Precipitation (mm)	59	58	63	87	125	197

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	31	31	31	29	26	25
Avg temp (°C)	28	28	28	26	23	21
Avg low (°C)	26	26	25	24	20	18
Precipitation (mm)	152	191	215	165	84	57

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	7	5	6	6	8	13	12	13	14	11	7	6
Days with high ≥ 32°C (days)	—	—	0.0	0.2	1	4	8	10	4	0.9	—	—

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	7	5	6	6	8	13
Days with high ≥ 32°C (days)	—	—	0.0	0.2	1	4

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	12	13	14	11	7	6
Days with high ≥ 32°C (days)	8	10	4	0.9	—	—

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	54	49	48	50	54	68	61	62	65	53	46	51
Clear days (≤ 30% cloud)	7	7	8	7	6	2	3	3	3	8	11	8
Partly cloudy days (30–70%)	15	16	17	17	17	14	16	16	13	14	12	15
Cloudy days (≥ 70%)	9	6	6	6	9	14	11	12	14	9	7	8
Relative humidity (%)	76	76	73	73	74	78	76	77	78	76	75	77
Wind speed (mph)	10.8	10.5	11.0	10.4	9.4	7.8	7.3	7.4	8.2	10.2	10.9	10.4

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	54	49	48	50	54	68
Clear days (≤ 30% cloud)	7	7	8	7	6	2
Partly cloudy days (30–70%)	15	16	17	17	17	14
Cloudy days (≥ 70%)	9	6	6	6	9	14
Relative humidity (%)	76	76	73	73	74	78
Wind speed (mph)	10.8	10.5	11.0	10.4	9.4	7.8

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	61	62	65	53	46	51
Clear days (≤ 30% cloud)	3	3	3	8	11	8
Partly cloudy days (30–70%)	16	16	13	14	12	15
Cloudy days (≥ 70%)	11	12	14	9	7	8
Relative humidity (%)	76	77	78	76	75	77
Wind speed (mph)	7.3	7.4	8.2	10.2	10.9	10.4

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Miami Beach (NOAA GHCN station USW00092811), about 2 km from the city centre.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →