Short-Duration Thundery Showers on Several Days in the Second Half of August 2024

Singapore, 16 August 2024 – Southwest Monsoon conditions are prevailing over Singapore and the surrounding region with winds blowing mainly from the southeast or southwest.

2          In the second half of August 2024, localised short-duration thundery showers are expected over parts of the island in the late morning and afternoon on several days. There may be a few fair and windy days, particularly in the last week of the month. The total rainfall for the second half of August 2024 is forecast to be below average over most parts of the island.

3          The daily maximum temperatures are likely to range between 32 degrees Celsius and 34 degrees Celsius on most days. A few nights may also be warm and humid, and the temperatures may stay above 28 degrees Celsius.

4          For updates of the daily weather forecast, please visit the MSS website (www.weather.gov.sg), NEA website (www.nea.gov.sg), or download the myENV app.

 

REVIEW OF THE PAST TWO WEEKS (1 – 15 AUGUST 2024)

5          Southwest Monsoon conditions prevailed over Singapore and the surrounding region in the first half of August 2024, with the prevailing winds blowing mostly from the southeast or southwest.

6          Thundery showers fell over parts of Singapore in the late morning and afternoon on most days in the first fortnight of August 2024. On 4 August 2024, regional convergence of winds brought moderate to heavy thundery showers over many areas of Singapore in the late morning and afternoon. The daily total rainfall of 72.9 mm recorded at Jurong West that day was the highest rainfall recorded for the first fortnight of August 2024.

7          The daily maximum temperatures in the first half of August 2024 were between 32 degrees Celsius and 34 degrees Celsius on most days. The highest daily maximum temperature of 34.6 degree Celsius was recorded at Seletar on 3 August 2024.

8          Most parts of Singapore recorded below average rainfall in the first half of August 2024. Sentosa registered rainfall of about 40 per cent above average, and Lower Pierce Reservoir registered rainfall of 70 per cent below average.

 

CLIMATE STATION STATISTICS

Long-term Statistics for August
(Climatological reference period: 1991 – 2020)

Average daily maximum temperature: 31.4 °C
Average daily minimum temperature: 25.3 °C
Average monthly temperature: 28.1 °C
Average rainfall: 146.9 mm
Average number of rain days: 14

 

Historical Extremes for August
(Rainfall since 1869 and temperature since 1929)

Highest monthly mean daily maximum temperature: 32.7 °C (2019)
Lowest monthly mean daily minimum temperature: 23.0 °C (1962)
Highest monthly rainfall ever recorded: 526.8 mm (1878)
Lowest monthly rainfall ever recorded: 11.8 mm (2019)