- Monsoon Update
(Updated on 9 April 2018)
The prevailing Northeast Monsoon conditions are expected to give way to inter-monsoon conditions in the first fortnight of April 2018 and extend into May 2018. During the period, the prevailing low level northeasterly winds over Singapore and the surrounding region are forecast to gradually become light and variable in direction.
The inter-monsoon period is characterised by days that are generally warm with daily maximum temperatures of 33°C to 34°C, and could reach up to 35°C on some days. April is climatologically one of the warmest months of the year. During this period, as the monsoon rain band shift to lie over the Equator, warm conditions coupled with thundery showers in the afternoon and evening can be expected. The thundery showers can at times be intense and accompanied by high lightning activity. In addition, the passage of Sumatra squalls from the Strait of Malacca towards the southern South China Sea on some days can bring thundery showers with gusty winds to Singapore between predawn hours and morning.
Based on long-term statistics* at 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 are 25.0°C and 32.3°C 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 and Facebook via @NEAsg or from radio broadcasts.
*based on 30-yr climatological reference period (1981- 2010)