Miami weather in August
Miami in August averages 29°C (84°F) and 242 mm of rain. It is one of the wetter months of the year here.
Of the twelve months in Miami, August is the third wettest.
- Average temp
- 29°C (84°F)
25–33°C · 78–91°F
- Rainfall
- 242 mm
A wet month
- Sunshine
- —
- Wind
- 11 km/h
What is Miami like in August?
Daytime
Days are hot, often above 32°C.
Rain
Expect frequent rain — this is a wet month.
Evening
Evenings stay warm.
What should I pack for Miami in August?
High-factor sun cream
With daytime highs around 33°C, burn time is short even in shade.
Sunglasses and a brimmed hat
Midday glare is the part people underpack for, not the heat itself.
Loose cotton or linen
Synthetics stop working once you are sweating through them all day.
A refillable water bottle
Daily highs this warm need roughly double the water a temperate day does.
A proper waterproof, not a folding umbrella
242 mm in the month usually arrives as heavy bursts that an umbrella will not cover.
A dry bag for phone and documents
Worth it for one downpour caught between the taxi and the door.
August compared with July and September
August in Miami is about the same temperature as July and 56 mm wetter than it, which averages 29°C (84°F).
August in Miami is 0.6°C warmer than September and 17 mm drier than it, which averages 28°C (83°F).
Daylight in Miami in August
On 15 August the sun is up for 13 hours 2 minutes in Miami, rising about 06:54 and setting about 19:55 local time.
August ends 39 minutes shorter than it begins, so the last week of the month is a different length of day from the first.
That is 43 minutes short of June, the longest-lit month here.
Where to stay in Miami
Dates are a starting point for August.
Travel guides for Miami
What to read before you book.
Miami weather by month
TemperatureRainfall
How August compares with the rest of the year
August is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 20°C / 69°F | 47 mm |
| February | 22°C / 71°F | 55 mm |
| March | 23°C / 73°F | 63 mm |
| April | 25°C / 77°F | 85 mm |
| May | 27°C / 80°F | 157 mm |
| June | 28°C / 83°F | 267 mm |
| July | 29°C / 84°F | 186 mm |
| August | 29°C / 84°F | 242 mm |
| September | 28°C / 83°F | 259 mm |
| October | 27°C / 80°F | 193 mm |
| November | 24°C / 75°F | 90 mm |
| December | 22°C / 71°F | 62 mm |
Check another month
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FAQs about Miami in August
August climate averages for Miami, 1991–2020.
Miami averages 29°C (84°F) in August, ranging from about 25°C (78°F) at night to 33°C (91°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Yes, a lot. August brings about 242 mm, which makes it one of the wetter months here — expect heavy bursts rather than all-day drizzle.
Yes. August averages 29°C (84°F) against 28°C (83°F) in September — 0.6°C warmer.
August is about as warm as July, and 56 mm wetter.
It is outside the easiest window. The most comfortable stretch here is November to April; August sits outside it, which usually means more heat, more rain, or both — worth it if you would rather have the place to yourself.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what August is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 13 hours 2 minutes of daylight in mid-August, against 13 hours 45 minutes in June and 10 hours 32 minutes in December.
On 15 August, sunrise is about 06:54 and sunset about 19:55 local time. Both shift across the month — the month ends 39 minutes shorter than it starts.
