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Late summer · Weather & things to do

Miami in August

Miami's warmest month brings highs averaging 86°F (30°C), lows of 83°F (28°C) and about 7.2 in (182 mm) of rain.

With a comfort score of 56/100 (10th of 12), it's one of the toughest months, held back mainly by rain.

Miami, Florida, United States
Avg high
86°F (30°C)
Avg low
83°F (28°C)
Rain
7.2 in (182 mm)
Humidity
77%
Cloud cover
62%
Daylight
~12 h 54 min
Comfort score
56/100 · Fair

What August feels like

Days are warm, averaging 86°F (30°C).

Nights stay warm too, with lows averaging 83°F (28°C).

With 77% average humidity, it feels muggy.

Rain is a real factor, with about 7.2 in (182 mm) across the month.

Miami: August compared with the months either side
JulyAugustSeptember
Avg high85°F30°C86°F30°C85°F29°C
Avg low82°F28°C83°F28°C81°F27°C
Rain6.5 in165 mm7.2 in182 mm7.5 in190 mm
Daylight13 h 28 min12 h 54 min12 h 09 min
Comfort605656

Plan around August

August is one of the lower-scoring months here; the best are November – April.

What to pack for August

What to do in Miami in August

With 7.2 in of rain, these picks lean toward food, drink and places with a roof, with outdoor options when the weather breaks.

Nearby in August

These averages also cover Downtown Miami & Bayfront and South Beach.

NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.

Miami in August: quick answers

Is August a good time to visit Miami?

It's one of the tougher months here, scoring 56/100, held back mainly by rain. The best months are November – April. Expect highs of 86°F (30°C) and 7.2 in (182 mm) of rain. Our Florida Keys Adventure route recommends Dec – May, so August is outside its suggested window.

How hot is Miami in August?

Average highs are 86°F (30°C) and average lows 83°F (28°C), making it the warmest month by daytime highs.

Does it rain a lot in Miami in August?

Yes: about 7.2 in (182 mm) of rain falls across August on average, the 3rd-wettest month of the year. The annual total is about 52.2 in (1327 mm).

What should I pack for Miami in August?

Bring light, breathable clothes (86°F afternoons), sunscreen, sunglasses and a hat (high UV on clear days), quick-dry fabrics (77% average humidity), rain jacket and waterproof shoes (frequent rain) and comfortable walking shoes (most picks involve some walking).

Planning Miami in August?

Bring the crew into one shared trip: vote on dates, build the day-by-day plan, split costs and share one packing list.

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