Mersing Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Mersing.
Climate overview of Mersing
The climate in Mersing, Johor, Malaysia, is remarkably consistent, with temperatures year-round averaging 30°C (86°F). The warmest month is May at 32°C (90°F), and the coolest is January at 29°C (84°F).
The city has a wet climate, receiving around 2653 mm (104 in) of rainfall per year. Despite the high annual total, it has two distinct rainy seasons, September to January and March to May. December is the wettest month.
Mersing Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mersing - and find the best time to visit.
Monthly Temperature in Mersing
In Mersing temperatures are generally consistent throughout the year. On average, daytime temperatures range from a very warm 32°C (90°F) in May to a comfortable 29°C (84°F) in January.
Nighttime temperatures range from 26°C (79°F) in May to 25°C (77°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Mersing
Mersing experiences significant rainfall throughout the year, averaging 2653 mm (104 in) of precipitation annually. The seasons in Mersing bring significant changes in precipitation. The wettest month, December, receives heavy rainfall, with an average of 431 mm (17 in) of precipitation. This rainfall is distributed across 26 rainy days.
In contrast, the driest month, July, experiences much less rainfall, totaling 146 mm (5.7 in) over 16 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Mersing Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Humidity in Mersing by Month
The city experiences its highest humidity in August, reaching 88%. In February, the humidity drops to its lowest level at 82%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Mersing
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: February, May, June, July, August and September
- Warmest weather: March, April, May, June, July, August, September and October
- Fewer rainy days: February, March, April, May and June
- Wettest months: January, October, November and December, when rainfall is highest.
- Seasonal pattern: Two distinct rainy seasons, September to January and March to May
Frequently asked questions about the climate in Mersing
What is the best time to visit Mersing?
February, May, June, July, August and September typically offer the most optimal weather in Mersing. In contrast, January, March, April, October, November and December tend to have less optimal conditions. Mersing has two distinct rainy seasons, September to January and March to May.
What temperatures can I expect in Mersing?
Daytime highs range from 29°C (84°F) in January to 32°C (90°F) in May. Nighttime lows range from 25°C (77°F) to 26°C (79°F). Temperatures stay relatively stable year-round.
How much rain does Mersing get?
Annual rainfall is around 2653 mm (104 in). December is the wettest month with 431 mm (17 in), while July is the driest with 146 mm (5.7 in).
Mersing 3-Day Forecast
Mersing on the map
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