- Monsoon Update
(Updated on 5 July 2018)
The prevailing Southwest Monsoon conditions over Singapore and the surrounding region are expected to persist for the next few months (July – September), and the low level winds are forecast to blow mostly from the southeast or southwest. Occasionally, winds are expected to shift to briefly blow from the west. During the Southwest Monsoon season, Singapore and the surrounding region generally experience relatively drier conditions compared to the other times of the year as the monsoon rain band typically lies north of the Equator, above latitude 5N.
For July 2018, the prevailing winds are forecast to blow mostly from southeast or southwest, and could temporarily shift to blow from the west under the influence of tropical cyclones in South China Sea and/or the Western Pacific Ocean. Localised short-duration thundery showers can be expected mostly in the late morning and early afternoon for Singapore this month. In addition, Sumatra squalls from the Strait of Malacca moving eastwards towards the South China Sea could bring widespread thundery showers with gusty to Singapore on a few days between predawn hours and morning.
With the main monsoon rain band forecast to lie further north of the Equator in the second half of July 2018, Singapore and the surrounding region could experience more dry and warm weather conditions. Overall, July 2018 is expected to be drier than the relatively wet June 2018, and rainfall is likely to be below-to-near-average for Singapore.
With less rainfall, generally warmer temperatures can be expected for July 2018. On most days of the month, the daily temperature is forecast to range between 25°C and 34°C, and on a few days, the daily maximum temperature could reach a high of around 35°C.
Based on long-term statistics* at our climate station, the average rainfall for July is 154.4mm, and the average number of days with 0.2mm or more of rainfall is 14 days. The mean daily minimum and maximum temperature for July are 25°C and 31.3°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)