What is the weather like in Penang in September?

Expect temperatures between 25°C and 29°C with 71% average rain probability and about 8 hours of sunshine daily.

What is the weather like in Penang in September?

Penang in September scores 48/100 based on 30 years of climate data. Requires preparation but many visit successfully.

Who should visit Penang in September?

September in Penang is ideal for: Business travelers.

Penang Weather in September | 30-Year Forecast

Avg High

29°C

Hottest around day 1

Avg Low

25°C

Coolest around day 29

Rainy Days

30days

71% avg rain chance

Sunshine

8hrs/day

Autumn season

Sea Temperature in September

Strait of Malacca(Selat Melaka)

31.4°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

Strait of Malacca

Selat Melaka

Penang coastline

Essential Travel Info for Penang

🗓️ Best Time to Visit 📖 Travel Guide 🍴 Food Guide

Currency

MYR

RM Malaysian ringgit

Language

English

+1 more

Driving

Left side

Connect

If you are staying for more than a coupl...

Safety

Very High Safety

GPI: 1.471

Travel Intelligence

Exclusive flight analytics & health data for Penang

Smart Flight Estimator

Airport-to-Airport Logistics

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Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Moderate

40/ 100

Traffic Index

Balanced traffic

Peak Daily Arrivals

slots per day

Peak

Dec

Low

Oct

Monthly Traffic Distribution

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Traffic Level

Low Season

Key Connections

Kuala Lumpur (KUL)

Singapore Changi (SIN)

Subang Sultan Abdul Aziz Shah (SZB)

Jakarta Soekarno-Hatta (CGK)

Senai (JHB)

Health & Safety Advisory

CDC travel health recommendations

11 Recommendations

COVID-19

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

Chikungunya

All travelers should take steps to prevent mosquito bites. Chikungunya vaccination is generally not recommended. Travelers who wish to consider vaccination can visit “What to consider before traveling” on thechikungunya vaccinespage to learn more.

Cholera

There is no longer active cholera transmission and vaccine is not recommended.

Hepatitis A

Recommended for unvaccinated travelers one year old or older going to Malaysia.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 younger than 60 years old traveling to Malaysia. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Malaysia.

Japanese Encephalitis

Recommended for travelers whoAre moving to an area with Japanese encephalitis to liveSpend long periods of time, such as a month or more, in areas with Japanese encephalitisFrequently travel to areas with Japanese encephalitisConsider vaccination for travelersSpending less than a month in areas with Japanese encephalitis but will be doing activities that increase risk of infection, such as visiting rural areas, hiking or camping, or staying in places without air conditioning, screens, or bed netsGoing to areas with Japanese encephalitis who are uncertain of their activities or how long they will be thereNot recommended for travelers planning short-term travel to urban areas or travel to areas with no clear Japanese encephalitis season.

+5 more

Source: CDC Travelers' Health

View Complete Health Guide

Is September a Good Time to Visit Penang?

🤔Requires preparation but many visit successfully(48/100)

Short Answer

Storm season alert for Penang in September: beyond the 29°C, 71% rain averages, hurricane risk requires travel insurance and schedule flexibility.

Decision Factors

Typhoon season active

Western Pacific zone - expect potential typhoon activity

Oppressive heat and humidity

29.4°C with 85% humidity - challenging conditions

High rainfall period

71% rain probability, 7mm average

Vaccinations required

Yellow Fever

Feels significantly hotter than 29.4°C

Heat index: 37°C due to 85% humidity

Warm tropical seas

31.4°C sea temperature - Hot Soup

Good For

💼
Business travelers
Climate-controlled meetings unaffected by weather

Who Should Avoid

💰
Budget travelers
Peak season means premium prices everywhere
👴
Elderly travelers
Heat index of 37°C poses health risks
🥾
Outdoor enthusiasts
71% rain probability disrupts outdoor activities
📸
Photographers
89% cloud cover limits natural light opportunities

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Penang in September averages 29°C with 71% precipitation probability."

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

Frequently Asked Questions: Penang in September

What are the temperatures in Penang in September?

Daytime highs average 29°C, nights drop to 25°C. Temperatures remain fairly consistent.

How many rainy days in Penang in September?

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

What to wear in Penang in September?

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

Is September peak season in Penang?

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

Penang Weather in September