- Monsoon Update
(Updated on 5 October 2017)
Southwest monsoon conditions in the region prevail in the first half of October 2017 before transitioning to Inter-Monsoon conditions around mid-October 2017. For the early part of the month, the low level winds are forecast to continue blowing predominantly from the southeast or southwest, and gradually weaken and become light and variable in direction towards the end of October 2017.
With the onset of the Inter-Monsoon season, an increase in rainfall can be expected. Short-duration afternoon thundery showers due to strong solar heating of land areas are expected on most days, and could extend into the evening on a few days. In addition, with the development of tropical cyclones over the northern South China Sea, thundery showers with gusty winds due to lines of thunderstorms or squalls from the Strait of Malacca or Sumatra can be expected on a few days between the predawn hours and morning over Singapore.
The daily temperature is forecast to range between 24°C and 33°C on most days this month. With light and variable winds, and on days when there is no rain, the daily maximum temperature could reach a high of around 34°C on a few days.
Based on long-term statistics* at our climate station, the mean monthly total rainfall for October is 154.6mm. In addition, for October, the average number of days with 0.2mm or more of rainfall is 15 days, and the mean daily minimum and maximum temperature is 24.7°C and 31.7°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 via @NEAsg or from radio broadcasts.
*based on 30-yr climatological reference period (1981- 2010)