(Updated on 1 April 2012)

The Northeast Monsoon has weakened and given way to Inter-Monsoon conditions since late March. The Inter-Monsoon conditions are expected to persist till May 2012.  During this period, the prevailing winds over the region are likely to be light and variable. Singapore will experience mostly short-duration afternoon thundery showers.  These showers may be heavy at times, especially when there is convergence of winds coupled with strong solar heating. Occasionally, when the wind changes to blow from the west, "Sumatra" Squalls may develop bringing widespread showers with gusty winds in the predawn hours and early morning.

During the Inter-Monsoon months, light winds, cloudless skies and more direct solar heating tend to result in hot afternoons. Based on long-term statistics, April has the highest mean daily maximum temperature (31.7 deg Celsius), followed by May (at 31.6 deg Celsius).

The latest weather forecast, including heavy rain warnings, can be obtained from NEA’s iPhone App (myEnv), NEA’s mobile weather service Weather@Sg (http://weather.nea.gov.sg), dial-a-weather hotline at 65427788, through following NEA’s twitter via @NEAsg or from radio broadcasts.