30YearWeather
George Town in September
George Town weather in September - Cayman Islands
🌧️Wet Season

George Town Weather in September

Plan your September trip to George Town, Cayman Islands. Based on 30 years of NASA data, expect temperatures of 30°C (high) to 27°C (low), with 41% rain probability and 8 hours of daily sunshine. The Coastal Waters averages 31°C in September. Pack rain gear for around 30 rainy days.

Avg High
30°C

Hottest around day 3

Avg Low
27°C

Coolest around day 30

Rainy Days
30days

41% avg rain chance

Sunshine
8hrs/day

Autumn season

Sea Temperature in September

Coastal Waters(Ocean)

30.8°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

George Town coastline

George Town September Weather Calendar

Click any day to see detailed weather information

Day 1
cloudy
Cloudy
30°C36%
Day 2
cloudy
Cloudy
30°C35%
Day 3
cloudy
Cloudy
31°C34%
Day 4
cloudy
Cloudy
31°C35%
Day 5
cloudy
Cloudy
31°C35%
Day 6
cloudy
Cloudy
31°C35%
Day 7
cloudy
Cloudy
30°C36%
Day 8
cloudy
Cloudy
30°C33%
Day 9
cloudy
Cloudy
31°C35%
Day 10
cloudy
Cloudy
31°C36%
Day 11
cloudy
Cloudy
31°C37%
Day 12
cloudy
Cloudy
31°C36%
Day 13
cloudy
Cloudy
31°C36%
Day 14
cloudy
Cloudy
30°C36%
Day 15
cloudy
Cloudy
30°C39%
Day 16
cloudy
Cloudy
30°C39%
Day 17
cloudy
Cloudy
30°C38%
Day 18
cloudy
Cloudy
30°C40%
Day 19
rain
Rainy
30°C43%
Day 20
rain
Rainy
30°C41%
Day 21
rain
Rainy
30°C41%
Day 22
rain
Rainy
30°C46%
Day 23
rain
Rainy
30°C48%
Day 24
rain
Rainy
30°C49%
Day 25
rain
Rainy
30°C49%
Day 26
rain
Rainy
30°C50%
Day 27
rain
Rainy
30°C52%
Day 28
rain
Rainy
30°C50%
Day 29
rain
Rainy
30°C51%
Day 30
rain
Rainy
30°C55%

Essential Travel Info for George Town

🗓️ Best Time to Visit📖 Travel Guide🍴 Food Guide

Currency

KYD

$ Cayman Islands dollar

Language

English

Driving

Left side

Travel Intelligence

Exclusive flight analytics & health data for George Town

Smart Flight Estimator

Airport-to-Airport Logistics

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Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Remote
13/ 100
Traffic Index

Off the beaten path

Peak Daily Arrivals

0

slots per day

Peak

Nov

Low

Oct

Monthly Traffic Distribution

25
Jan
29
Feb
29
Mar
22
Apr
24
May
22
Jun
20
Jul
24
Aug
22
Sep
17
Oct
32
Nov
26
Dec
Traffic Level
Low Season

Key Connections

Miami (MIA)
Cayman Brac Gerrard Smith (CYB)
Little Cayman Edward Bodden Airfield (LYB)
Atlanta Hartsfield Jackson (ATL)
Chicago O'Hare (ORD)

Health & Safety Advisory

CDC travel health recommendations

7 Recommendations
COVID-19

All eligible travelers should be up to date with their COVID-19 vaccines. Please seeYour COVID-19 Vaccinationfor more information.

Hepatitis A

Recommended for unvaccinated travelers one year old or older going to the Cayman Islands.Infants 6 to 11 months old should also be vaccinated against Hepatitis A. The dose does not count toward the routine 2-dose series.Travelers allergic to a vaccine component should receive a single dose of immune globulin, which provides effective protection for up to 2 months depending on dosage given.Unvaccinated travelers who are over 40 years old, are immunocompromised, or have chronic medical conditions planning to depart to a risk area in less than 2 weeks should get the initial dose of vaccine and at the same appointment receive immune globulin.

Hepatitis B

Recommended for unvaccinated travelers of all ages traveling to the Cayman Islands.

Measles

Cases of measles are on the rise worldwide. Travelers are at risk of measles if they have not been fully vaccinated at least two weeks prior to departure, or have not had measles in the past, and travel internationally to areas where measles is spreading.All international travelers should be fully vaccinated against measles with the measles-mumps-rubella (MMR) vaccine, including an early dose for infants 6–11 months, according toCDC’s measles vaccination recommendations for international travel.

Rabies

Dogs infected with rabies are not commonly found in the Cayman Islands.If rabies exposures occur while in the Cayman Islands, rabies vaccines are typically available throughout most of the country.Rabies pre-exposure vaccination considerations include whether travelers 1) will be performing occupational or recreational activities that increase risk for exposure to potentially rabid animals and 2) might have difficulty getting prompt access to safe post-exposure prophylaxis.Please consult with a healthcare provider to determine whether you should receive pre-exposure vaccination before travel.For more information, seecountry rabies status assessments.

Typhoid

Recommended for most travelers, especially those staying with friends or relatives or visiting smaller cities or rural areas.

+1 more

Source: CDC Travelers' Health

View Complete Health Guide

Is September a Good Time to Visit George Town?

👌Good option with minor considerations
Short Answer

September brings storm season risk to George Town. While typical weather is 30°C with 41% 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

30.2°C with 76% humidity - challenging conditions

Vaccinations required

Yellow Fever

Feels significantly hotter than 30.2°C

Heat index: 37°C due to 76% humidity

Warm tropical seas

30.8°C sea temperature - Hot Soup

Health precautions needed

Be aware of: Leptospirosis, Dengue, Zika

Good For

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

Who Should Avoid

  • 👴
    Elderly travelers

    Heat index of 37°C poses health risks

  • 💼
    Business travelers

    Storm season may cause flight disruptions

  • 🌡️
    Heat-sensitive visitors

    37°C feels-like temperature creates discomfort

Related Guides

Best Time to VisitWhen to AvoidGeorge Town Overview
900 observations30-year historical data
Confidence: 99%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,George Town in September averages 30°C with 41% precipitation probability."

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

Frequently Asked Questions: George Town in September

What are the temperatures in George Town in September?

Daytime highs average 30°C, nights drop to 27°C. Temperatures remain fairly consistent.

How many rainy days in George Town in September?

Expect around 30 days with measurable rainfall. An umbrella is advisable.

What to wear in George Town in September?

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

Is September peak season in George Town?

This is shoulder season—moderate prices and manageable crowds.