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Singapore Weather in August

We take a close look at the Singapore weather in August, including humidity, temperature and average rainfall.

Weather in Singapore in August

August falls in the middle of the Southwest Monsoon period in Singapore. 

This means that thunderstorms can be expected in the afternoons, plus occasional ‘Sumatra squalls’ (thunderstorms originating in Sumatra and traveling eastward across Singapore) can occur in the mornings.    

Average monthly temperatures in August are 28.1°C (82°F). Humidity is average for Singapore with a 80.7% average and rainfall is also average, with rain expected almost half of the days in the month.

Click here to read about the best time to visit Singapore.

Singapore temperature in August

Singapore’s average day time maximum temperature in August is 31.4°C (88°F), with an average minimum temperature of 25.3°C (78°F) and a 24-hour average of 28.1°C (83°F).

How much does it rain in Singapore in August?

It rains on average 14 out of 31 days during August in Singapore, meaning you can expect rain on almost half of the days in the month. 

Short duration thunderstorms in the afternoon are common and occasional morning thunderstorms too. Pack an umbrella and carry it with you as the rain can come on suddenly. You will probably want to find somewhere dry to sit it out when it does come. 

With average rainfall of 146.9mm it is a fairly average month when it comes to rain (compared to 105.1mm in January and 331.9mm in December).

Singapore Humidity in August

Relative humidity in August ranges from a minimum average of 63.6% and a maximum average of 93% and a 24-hour daily average of 80.7%. This makes it a fairly average month of the year for humidity in Singapore. 

Note that humidity is generally at its highest in the morning just before sunrise and at its lowest in the mid-afternoon (on days when there is no rain). 

You will notice the humidity rising in the lead up to a thunderstorm and it will drop again following the rain.

What should I pack for Singapore in August?

As you can see from the above statistics, Singapore is hot and humid in August and you should be prepared for thunderstorms in both the mornings and afternoons. 

We recommend packing lightweight cotton clothing and carrying an umbrella and water bottle with you at all times. Also don’t forget your sunscreen, insect repellent and swimwear for when you want to jump in the pool to cool off. 

Click here for a more comprehensive guide to what to pack for Singapore. 

What else should I know about visiting Singapore in August?

Singapore’s National Day is celebrated on 9th August every year, marking the country’s independence.

The famous National Day Parade takes place at the Float at Marina Bay, with multicultural performances, military parades and impressive aerial performances all cheered on by flag-waving onlookers. The event concludes with a fireworks display at around 8pm.

Rehearsals for the parade begin a couple of months before the actual day and so don’t be surprised to see military aircraft flying around. There are also two dress rehearsals or ‘preview shows’ on the two weekends before National Day.

Before you go… Don’t miss this all this useful information about visiting Singapore:

Click here to read about the weather in Singapore in July and September.