Miami weather in September
Miami in September averages 28°C (83°F) and 259 mm of rain. It is one of the wetter months of the year here.
Of the twelve months in Miami, September is the third warmest and the second wettest.
- Average temp
- 28°C (83°F)
25–32°C · 77–89°F
- Rainfall
- 259 mm
A wet month
- Sunshine
- —
- Wind
- 11 km/h
What is Miami like in September?
Daytime
Days are warm, typically in the mid-20s°C or above.
Rain
Expect frequent rain — this is a wet month.
Evening
Evenings stay warm.
What should I pack for Miami in September?
High-factor sun cream
With daytime highs around 32°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
259 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.
September compared with August and October
September in Miami is 0.6°C cooler than August and 18 mm wetter than it, which averages 29°C (84°F).
September in Miami is 1.6°C warmer than October and 67 mm wetter than it, which averages 27°C (80°F).
Daylight in Miami in September
On 15 September the sun is up for 12 hours 17 minutes in Miami, rising about 07:06 and setting about 19:24 local time.
September ends 43 minutes shorter than it begins, so the last week of the month is a different length of day from the first.
That is 1 hour 28 minutes short of June, the longest-lit month here.
Where to stay in Miami
Dates are a starting point for September.
Travel guides for Miami
What to read before you book.
Miami weather by month
TemperatureRainfall
How September compares with the rest of the year
September 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 September
September climate averages for Miami, 1991–2020.
Miami averages 28°C (83°F) in September, ranging from about 25°C (77°F) at night to 32°C (89°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Yes, a lot. September brings about 259 mm, which makes it one of the wetter months here — expect heavy bursts rather than all-day drizzle.
Yes. September averages 28°C (83°F) against 27°C (80°F) in October — 1.6°C warmer.
September is 0.6°C cooler than August, and 18 mm wetter.
It is outside the easiest window. The most comfortable stretch here is November to April; September 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 September is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 12 hours 17 minutes of daylight in mid-September, against 13 hours 45 minutes in June and 10 hours 32 minutes in December.
On 15 September, sunrise is about 07:06 and sunset about 19:24 local time. Both shift across the month — the month ends 43 minutes shorter than it starts.
