Thundery showers are still expected on some days
Advisory
Singapore, 1 August 2016 – Southwest Monsoon conditions are forecast to persist in August 2016 with the low level winds blowing mostly from the southeast or southwest.
2 In the first fortnight of August 2016, short-duration thundery showers due to strong solar heating of land areas are forecast to occur in the late morning and early afternoon on four to five days. In addition, thundery showers with gusty winds due to Sumatra squalls are likely on one to two days in the pre-dawn and morning. Rainfall for the first fortnight of August 2016 is expected to be slightly below normal.
3 Compared to the weather conditions in the second half July 2016, the first fortnight of August 2016 is expected to be generally drier and warmer. The daily maximum temperatures for the next fortnight is forecast to range between 33°C and 34°C, and could reach around 35°C on a few days.
REVIEW (1 – 31 July 2016)
4 Southwest Monsoon conditions prevailed over the region in July 2016, with the low level winds blowing predominantly from the southeast or southwest.
5 Singapore experienced several warm days in the first half of July 2016, when the daily maximum temperatures ranged between 30.2°C and 36°C. With wetter weather in the second half of the month, it was a relatively cooler fortnight with the daily maximum temperatures ranging between 28.8°C and 34.7°C. At the Changi climate station, the mean monthly temperature recorded for July 2016 was 28.4°C, warmer than the long-term mean of 27.9°C for July.
6 Singapore experienced relatively wet conditions in July 2016 as a result of strong convergence of winds in the surrounding region as well as the passage of Sumatra squalls on several days. The heaviest rain fell on 21 July 2016 and brought a daily rainfall of 96.8mm to the East Coast area.
7 Almost all parts of Singapore received above normal rainfall in July 2016. The highest rainfall of 426mm (120% above average) was recorded over the western part of the island around Tengah. Rainfall was lowest around Buangkok where 146.6mm (16% below average) was recorded.
CLIMATE STATION STATISTICS FOR AUGUST (Climatological reference period: 1981 – 2010)
| Mean daily maximum temperature | 31.4 °C |
| Mean daily minimum temperature | 25.0 °C |
| Mean monthly temperature | 27.9 °C |
| Mean rainfall for the month | 148.9 mm |
| Mean number of rain days | 14 |
| Highest monthly mean daily maximum temperature | 32.6 °C (1997) |
| Lowest monthlymean daily minimum temperature | 23.9 °C (1989) |
| Highest monthly rainfall | 327.3 mm (2008) |
| Lowest monthly rainfall | 45.1 mm (1994) |