- Monsoon Update
(Updated on 7 April 2017)
The prevailing inter-monsoon conditions are expected to continue for the rest of April 2017 and extend into May 2017. During the inter-monsoon period, the monsoon rain band typically lies close to the Equator, and the prevailing low level winds are generally light and variable in direction. On some days, due to the presence of low pressure systems in the region, the prevailing winds could shift to blow from to blow from the southwest or west.
The inter-monsoon period is characterized by days that are generally warm with daily maximum temperatures of 330C to 340C, and could reach up to 350C on some days. In addition, short-duration thundery showers typically affect the island in the afternoon due to strong daytime heating of land areas. These showers can be intense with high lightning activity, and could extend into the evening on some days. Mostly on days when winds shift to blow from the southwest or west, Sumatra squalls can be expected on some days accompanied by gusty winds, and occur mostly in the predawn and morning.
April is climatologically among the warmest months of the year. Based on the long-term statistics* from our climate station, the average rainfall for April is 154.8mm, and the average number of days with 0.2mm or more of rainfall is 14 days. The mean daily minimum and maximum temperature for April is 25.00C and 32.30C respectively.
For the latest weather forecast, including heavy rain warnings, please visit our MSS website (www.weather.gov.sg), NEA website (www.nea.gov.sg), download the myENV app, Weather@SG app, weather information hotline at 65427788, through following NEA’s twitter via @NEAsg or from radio broadcasts.
 based on 30-yr climatological reference period (1981- 2010)