Wet Conditions Expected in The Next Fortnight

A few dry and warm days can still be expected

Singapore, 1 September 2016 – The region continues to experience Southwest Monsoon conditions. In the first fortnight of September 2016, the low level winds are forecast to blow predominantly from the southeast or southwest, and are expected to blow from the west on a few days.

2        Over the next two weeks, Singapore can expect five to seven days of short-duration thundery showers mostly in the late morning and afternoon due to strong solar heating of land areas coupled with wind convergence. In addition, thundery showers with occasional gusty winds can be expected on one or two days between the predawn hours and morning due to squall lines moving eastwards from the Strait of Malacca. The rainfall for the first fortnight of September 2016 is likely to be slightly above normal.

3        During the outlook period, dry and warm weather conditions can still be expected on a few days where the daily maximum temperatures could reach around 34°C. On most days, the daily maximum temperatures are forecast to range between 32°C and 33°C.

4        For updates of the daily weather and haze forecast, please visit our MSS website (www.weather.gov.sg), NEA website (www.nea.gov.sg), the haze microsite (www.haze.gov.sg) or download the myENV app, MSS’ Weather@SG app.

REVIEW: 1 – 31 August 2016

5        In August 2016, Southwest Monsoon conditions prevailed over the region and the low level winds blew from the south or southwest on most days and from the west on a few days.

6        Singapore experienced a few warm days in the first half of August 2016. The highest daily maximum temperature recorded in August 2016 ranged between 29.1°C and 35.4°C. At the Changi climate station, the mean daily maximum temperature for August 2016 was 31.8°C, which is the highest mean daily maximum temperature recorded for August in the last ten years. In addition, the mean monthly temperature recorded was 28.9°C, approximately 1°C warmer than the long-term August mean temperature.

7        Compared to the first half of August 2016, Singapore experienced more rain days in the second half of the month. On 24 August 2016, a Sumatra squall brought heavy rainfall to many parts of Singapore. The heaviest rain that day fell over Jurong Island where a total of 69.2mm of rainfall was recorded. Most of the thundery showers in August 2016 fell in the late morning and early afternoon and were due to strong solar heating of land areas.

8        Rainfall for Singapore was below normal for August 2016. The highest rainfall of 213mm (4% above average) was recorded around the Choa Chu Kang area. Rainfall was lowest around Jurong West where 85.6mm (52% below average) was recorded.


CLIMATE STATION STATISTICS FOR SEPTEMBER (Climatological reference period: 1981 – 2010)

Mean daily maximum temperature 31.4 °C
Mean daily minimum temperature 24.8 °C
Mean monthly temperature 27.6 °C
Mean rainfall for the month 156.5 mm
Mean number of rain days 13
Highest monthly mean daily maximum temperature 32.2 °C (1997)
Lowest monthlymean daily minimum temperature 23.6 °C (1986)
Highest monthly rainfall 440.4 mm (1988)
Lowest monthly rainfall 23.7 mm (1994)