- Rain mm/yr
- 2,500
- Snowfall
- None—tropical climate with year-round warm temperatures
Updated July 2026 · Sources cited: sg.trip.com, worldweatheronline.com
Good to know
Good to Know
- Best months for outdoor activities and beach trips: January to March (drier, sunnier, cooler nights).
- September and October see significantly higher rainfall and humidity; plan indoor activities accordingly.
- Even during dry months, brief rain showers can occur at any time—bring an umbrella year-round.
- High humidity persists throughout the year (75%+ day, 65%+ night); plan activities in cooler morning hours.
- April, May, September, and October see fewer tourists and lower hotel prices, but with more rain.
Humidity
- Range Percent
- 69-87%
- Lowest Months
- February
- Highest Months
- September and October
Overview
Penang has a tropical rainforest climate with warm, humid weather throughout the year. Temperatures remain relatively stable with no seasonal variation of consequence. Snow is virtually non-existent.
Rainfall
- Annual Total Mm
- 2500
- Note
- Rain often falls in short, sharp bursts followed by sun
Peak Wet Months
- Average Monthly Mm
- 335
- Rainy Days Per Month
- 14
- Description
- September and October are the wettest months
Off Peak Dry Months
- Average Monthly Mm
- 70
- Rainy Days Per Month
- 5
- Description
- January and February are the driest months
Snowfall
None—tropical climate with year-round warm temperatures
Temperature
Year Round
- Average Low Celsius
- 24
- Average High Celsius
- 32
- Average Low Fahrenheit
- 75
- Average High Fahrenheit
- 90
- Note
- Variation between coolest and warmest is minimal
Peak Months
- Average Low Celsius
- 24
- Average High Celsius
- 32
- Average Low Fahrenheit
- 75
- Average High Fahrenheit
- 90
- Description
- April to May are the hottest months
Off Peak Months
- Average Low Celsius
- 24
- Average High Celsius
- 31
- Average Low Fahrenheit
- 75
- Average High Fahrenheit
- 88
- Description
- January and February are the coolest months
Monsoon Seasons
Southwest Monsoon
- Period
- May to September
- Characteristics
- Generally drier with occasional thunderstorms; hot and humid
Northeast Monsoon
- Period
- November to March
- Characteristics
- Cooler temperatures with frequent rain; generally less intense than Southwest Monsoon
AI-generated estimateData refreshed July 2026
Sources cited for this category
These are the sources cited in this climate & weather research for this city. Individual figures may not each trace to one of them.
More About Penang
Data last updated July 2026 · Verify anything important.