30YearWeather
Miami in September
Miami weather in September - United States
🌧️Wet Season

Miami Weather in September

Plan your September trip to Miami, United States. Based on 30 years of NASA data, expect temperatures of 30°C (high) to 25°C (low), with 56% rain probability and 8 hours of daily sunshine. The Atlantic Ocean averages 31°C in September. Pack rain gear for around 30 rainy days.

Avg High
30°C

Hottest around day 1

Avg Low
25°C

Coolest around day 30

Rainy Days
30days

56% avg rain chance

Sunshine
8hrs/day

Autumn season

Sea Temperature in September

Atlantic Ocean

30.7°C

Monthly Average

Water Feel
🌴Tropical

Perfect for swimming and water sports

Swim Rating
Excellent for swimming

Based on average sea surface temperature

Body of Water
Atlantic Ocean

Miami coastline

Miami September Weather Calendar

Click any day to see detailed weather information

Currency

USD

$ United States dollar

Language

English

Driving

Right side

Connect

Miami-Dade County is served by an overla...

Safety

Moderate Safety

GPI: 2.44

Travel Intelligence

Exclusive flight analytics & health data for Miami

Smart Flight Estimator

Airport-to-Airport Logistics

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Add your home location in settings to see airport details.

Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Major Hub
83/ 100
Traffic Index

Extremely busy airport

Peak Daily Arrivals

0

slots per day

Peak

Mar

Low

Oct

Monthly Traffic Distribution

581
Jan
619
Feb
653
Mar
586
Apr
612
May
556
Jun
555
Jul
566
Aug
494
Sep
172
Oct
593
Nov
627
Dec
Traffic Level
Low Season

Key Connections

Atlanta Hartsfield Jackson (ATL)
Havana José Martí (HAV)
Bogotá El Dorado (BOG)
Orlando (MCO)
Dallas-Fort Worth (DFW)

Health & Safety Advisory

CDC travel health recommendations

No Requirements

No Special Vaccinations Required

Standard travel precautions apply

Source: CDC Travelers' Health

View Complete Health Guide

Is September a Good Time to Visit Miami?

👌Decent conditions for most activities
Short Answer

September brings storm season risk to Miami. While typical weather is 30°C with 56% rain, plan for potential disruptions and secure cancellation-friendly bookings.

Decision Factors

Atlantic Hurricane season active

Atlantic zone - expect potential atlantic hurricane activity

Oppressive heat and humidity

29.7°C with 81% humidity - challenging conditions

Feels significantly hotter than 29.7°C

Heat index: 37°C due to 81% humidity

Warm tropical seas

30.7°C sea temperature - Hot Soup

Frequent rainfall expected

56% chance of rain - pack waterproofs

Plenty of sunshine

9.6h of sunshine daily

Good For

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

Who Should Avoid

  • 👴
    Elderly travelers

    Heat index of 37°C poses health risks

  • 🥾
    Outdoor enthusiasts

    56% rain probability disrupts outdoor activities

  • 💑
    Honeymoon couples

    Wedding score only 73/100 - better months available

  • 💼
    Business travelers

    Storm season may cause flight disruptions

900 observations30-year historical data
Confidence: 99%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Miami in September averages 30°C with 56% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: Miami in September

What are the temperatures in Miami in September?

Daytime highs average 30°C, nights drop to 25°C. Temperatures remain fairly consistent.

How many rainy days in Miami in September?

Expect around 30 days with measurable rainfall. Definitely pack rain gear.

What to wear in Miami in September?

Light, breathable fabrics. Don't forget sunglasses and a hat.

Is September peak season in Miami?

This is off-peak season. Expect lower prices and fewer crowds.