Butterworth Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Butterworth.
Climate overview of Butterworth
The climate in Butterworth, Penang, Malaysia, is remarkably consistent, with temperatures year-round averaging 32°C (90°F). The warmest month is March at 33°C (91°F), and the coolest is October at 31°C (88°F).
The city receives considerable rainfall, with around 2563 mm (101 in) annually. October is the wettest month. It has two distinct rainy seasons, March to May and August to December. February is the sunniest month, averaging 6.7 hours of sunshine per day.
Butterworth Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Butterworth - and find the best time to visit.
Monthly Temperature in Butterworth
In Butterworth temperatures are generally consistent throughout the year. Typically, average maximum daytime temperatures range from a very warm 33°C (91°F) in March to a very warm 31°C (88°F) in the coolest month, October.
Nights vary from 26°C (79°F) in March to around 25°C (77°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Butterworth
Butterworth experiences significant rainfall throughout the year, averaging 2563 mm (101 in) of precipitation annually. The climate in Butterworth shows significant variation throughout the year. Expect heavy rainfall in October, the wettest month, with an average of 343 mm (14 in) of precipitation over 24 rainy days.
In contrast, the driest month February offers drier and sunnier days, with around 123 mm (4.8 in) of rainfall over 9 rainy days. For more details, please visit our Butterworth Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Butterworth
Butterworth offers a pleasant mix of sunny and slightly overcast days. The difference in sunshine hours between February (6.7 hours daily) and October (5.4 hours daily) provides a bit of variety for visitors and residents.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Butterworth by Month
The city experiences its highest humidity in October, reaching 87%. In January, the humidity drops to its lowest level at 75%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Butterworth
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: January, February, June and July
- Warmest weather: all year round
- Most sunshine: January, February, March and April
- Fewest rainy days: January and February
- Seasonal pattern: Two distinct rainy seasons, March to May and August to December
Frequently asked questions about the climate in Butterworth
What is the best time to visit Butterworth?
January, February, June and July typically offer the most optimal weather in Butterworth. In contrast, March, April, May, August, September, October, November and December tend to have less optimal conditions. Butterworth has two distinct rainy seasons, March to May and August to December.
What temperatures can I expect in Butterworth?
Daytime highs range from 31°C (88°F) in October to 33°C (91°F) in March. Nighttime lows range from 25°C (77°F) to 26°C (79°F). Temperatures stay relatively stable year-round.
How much rain does Butterworth get?
Annual rainfall is around 2563 mm (101 in). October is the wettest month with 343 mm (14 in), while February is the driest with 123 mm (4.8 in).
How sunny is Butterworth?
Butterworth receives around 2,145 hours of sunshine per year. February is the sunniest month with 202 hours, while October is the cloudiest with just 161 hours. Overall, Butterworth enjoys abundant sunshine.
Butterworth 3-Day Forecast
Butterworth on the map
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