September · United States
Best time to visit Miami in September Weather, crowds & prices
Weather in Miami in September
Average temperature 29°C, 223 mm of rain, about 20 days with 6+ hours of sunshine and 78% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
6.9/10
Ranked #11 of 12 months
- Avg temp
- 29°C
- Rainfall
- 223 mm
- Humidity
- 78%
- Days with 6h+ sun
- 20
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Miami scores 6.9/10 for beach and coastal travel - ranked #11 of 12. Expect around 29°C, 223 mm of rain, and roughly 20 days with 6+ hours of sunshine this month.
Art Deco beaches and nightlife under winter-early spring skies from January through March.
September in Miami — middling scores, decent value
Days in September average 29°C (84°F) and humidity near 78% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
This is the year's wettest stretch at 223 mm, but with about 20 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.
That is 6.9/10 on the same scale — 11th of 12 months, versus 9.2/10 for the best month here.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Budget for low-season pricing, and crowds are light for this destination.
If your dates are flexible, March is materially better in Miami — 2.3 points higher on the same scale.
Frequently asked
- What is the weather like in Miami in September?
- In September, Miami averages 29°C, 223 mm of rain, and about 20 days with 6+ hours of sunshine. Its climate-comfort score is 6.9/10.
- Is September a good time to visit Miami?
- September earns a 6.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Miami in September?
- Expect about 223 mm of rain in September. Average humidity is 78% and there are about 20 days with 6+ hours of sunshine.
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