New climate station temperature record for September
Singapore, 30 September 2016 – Southwest Monsoon conditions are forecast to continue into the first half of October 2016. The low level winds are expected to blow from the southwest or west and gradually become light and variable in direction towards the end of the outlook period.
2. During the first half of October 2016, short-duration thundery showers are expected on four to six days mostly in the late morning and afternoon. In addition, widespread thundery showers with occasional gusty winds due to squall lines moving eastwards from the Strait of Malacca, are expected on two or three days between the pre-dawn hours and morning. Rainfall for the first fortnight of October 2016 is expected to be slightly below normal.
3. The warm temperatures experienced in the last week of September 2016 can still be expected on a few days in the first two weeks of October 2016. During this period, the daily maximum temperatures are forecast to range between 33°C and 34°C on most days and could reach a high of around 35°C on a few days.
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 – 29 September 2016
5 In September 2016, Southwest Monsoon conditions prevailed over the region with the low level winds blowing predominantly from the southwest or west.
6 During the month, Singapore experienced a few warm days, in particular in the last week of the month. At the Changi climate station, the daily maximum temperature recorded on 29 September 2016 was 34.4°C, which exceeds the highest ever recorded daily maximum temperature of 34.3°C (on 15 September 2000) for September.
7 During the review period, lines of thunderstorms or squalls that moved eastwards from the Strait of Malacca brought widespread thundery showers accompanied by gusty winds to Singapore on several days mostly between the early hours and predawn. On a few days, thundery showers due to strong solar heating of land areas affected Singapore mostly in the late morning and early afternoon. Rainfall was heaviest on 14 September 2016 over the Paya Lebar-Macpherson area where a total of 86.6mm of rainfall was recorded.
8 Most parts of Singapore received slightly below normal rainfall in September 2016. The highest rainfall of 216.4mm (23% above average) was recorded around the Telok Blangah area. Rainfall was lowest around Mandai where 86.4mm (57% below average) was recorded.
CLIMATE STATION STATISTICS FOR OCTOBER (Climatological reference period: 1981 – 2010)
| Mean daily maximum temperature | 31.7 °C |
| Mean daily minimum temperature | 24.7 °C |
| Mean monthly temperature | 27.6 °C |
| Mean rainfall for the month | 154.6 mm |
| Mean number of rain days | 15 |
| Highest monthly mean daily maximum temperature | 33.0 °C (2002) |
| Lowest monthlymean daily minimum temperature | 23.8 °C (1982) |
| Highest monthly rainfall | 351.4 mm (2003) |
| Lowest monthly rainfall | 10.8 mm (2002) |