30YearWeather
Charlotte Amalie in September
Charlotte Amalie weather in September - US Virgin Islands
😊Warm & Pleasant

Charlotte Amalie Weather in September

Plan your September trip to Charlotte Amalie, US Virgin Islands. Based on 30 years of NASA data, expect temperatures of 28°C (high) to 27°C (low), with 38% rain probability and 8 hours of daily sunshine. The Coastal Waters averages 30°C in September. Pack rain gear for around 29 rainy days.

Avg High
28°C

Hottest around day 24

Avg Low
27°C

Coolest around day 19

Rainy Days
29days

38% avg rain chance

Sunshine
8hrs/day

Autumn season

Sea Temperature in September

Coastal Waters(Ocean)

30.1°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
Coastal Waters

Ocean

Charlotte Amalie coastline

Charlotte Amalie September Weather Calendar

Click any day to see detailed weather information

Essential Travel Info for Charlotte Amalie

Travel Intelligence

Exclusive flight analytics & health data for Charlotte Amalie

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

Low Traffic
20/ 100
Traffic Index

Quieter airport

Peak Daily Arrivals

0

slots per day

Peak

May

Low

Sep

Monthly Traffic Distribution

44
Jan
45
Feb
50
Mar
43
Apr
51
May
47
Jun
32
Jul
21
Aug
16
Sep
22
Oct
37
Nov
24
Dec
Traffic Level
Low Season

Key Connections

San Juan Luis Munoz Marin (SJU)
Christiansted Henry E Rohlsen (STX)
Miami (MIA)
Atlanta Hartsfield Jackson (ATL)
Chicago O'Hare (ORD)

Is September a Good Time to Visit Charlotte Amalie?

👌Good option with minor considerations
Short Answer

Storm season alert for Charlotte Amalie in September: beyond the 29°C, 38% rain averages, hurricane risk requires travel insurance and schedule flexibility.

Decision Factors

Atlantic Hurricane season active

Atlantic zone - expect potential atlantic hurricane activity

Oppressive heat and humidity

28.5°C with 80% humidity - challenging conditions

Warm tropical seas

30.1°C sea temperature - Hot Soup

Seismically active region

16 earthquakes recorded in this month (30-year data)

Off-peak season - fewer crowds

Only 31% of peak - better deals and quiet crowds

Plenty of sunshine

10.6h of sunshine daily

Good For

  • 💰
    Budget travelers

    Off-peak pricing with acceptable weather conditions

  • 🏛️
    Cultural tourists

    Comfortable conditions for exploring museums and sites

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

  • 🎯
    Adventure seekers

    1.07m waves - good for surfing and water sports

Who Should Avoid

  • 👴
    Elderly travelers

    80% humidity creates difficult conditions

  • 💼
    Business travelers

    Storm season may cause flight disruptions

  • 🌡️
    Heat-sensitive visitors

    33°C feels-like temperature creates discomfort

900 observations30-year historical data
Confidence: 95%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Charlotte Amalie in September averages 28°C with 38% precipitation probability."

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

Frequently Asked Questions: Charlotte Amalie in September

What are the temperatures in Charlotte Amalie in September?

Daytime highs average 28°C, nights drop to 27°C. Temperatures remain fairly consistent.

How many rainy days in Charlotte Amalie in September?

Expect around 29 days with measurable rainfall. An umbrella is advisable.

What to wear in Charlotte Amalie in September?

Comfortable casual wear with a light jacket for evenings.

Is September peak season in Charlotte Amalie?

This is shoulder season—moderate prices and manageable crowds.