Singapore, 18 June 2024 – The prevailing Southwest Monsoon conditions will likely continue over Singapore and the surrounding region, with the low-level winds blowing mainly from the southeast or southwest.
2 Localised short-duration thundery showers are expected over parts of the island in the late morning and afternoon on most days for the rest of June 2024. On a few of these days, the thundery showers may be heavy, when there is large-scale convergence of winds over Singapore and the surrounding region. In addition, widespread thundery showers with gusty winds due to Sumatra squalls may occur between the pre-dawn hours and morning on one or two days. The total rainfall for the second half of June 2024 is forecast to be near average over most parts of the island.
3 The daily maximum temperatures are likely to range between 33 degrees Celsius and 34 degrees Celsius on most days. On a few days, the daily maximum temperature could reach a high of slightly above 34 degrees Celsius. Some nights may also be warm and humid. Warm nights typically occur when the prevailing winds blow from the southeast and bring warm, humid air from the sea over the land. On these nights, the temperatures may stay above 28 degrees Celsius, particularly over the southern and eastern coastal areas of the island.
4 For updates of the daily weather forecast, please visit the MSS website (https://www.weather.gov.sg), NEA website (www.nea.gov.sg), or download the myENV app.
REVIEW OF THE PAST TWO WEEKS (1 – 17 June 2024)
5 Southwest Monsoon conditions prevailed over Singapore and the surrounding region in the first fortnight of June 2024 with the prevailing winds blowing mostly from the southeast or southwest.
6 Localised short-duration thundery showers fell over parts of the island in the late morning and afternoon on most days in the first half of June 2024. On 11 June 2024, strong day-time heating of land areas brought moderate to heavy thundery showers over the northern and western parts of Singapore in the late afternoon. The daily total rainfall of 90.8 mm recorded around Lim Chu Kang area that day was the highest rainfall recorded for the first fortnight of June 2024.
7 The daily maximum temperatures in the first half of June 2024 were above 33 degrees Celsius on most days. The highest daily maximum temperature of 35.5 degree Celsius was recorded at Admiralty on 11 June 2024.
8 About half of the island recorded above average rainfall in the first fortnight of June 2024. Kranji area registered rainfall of 200 per cent above average, and Sentosa registered rainfall of 53 per cent below average.
CLIMATE STATION STATISTICS
Long-term Statistics for June
(Climatological reference period: 1991 – 2020)
| Average daily maximum temperature: | 31.9 °C |
| Average daily minimum temperature: | 25.7 °C |
| Average monthly temperature: | 28.5 °C |
| Average rainfall: | 135.3 mm |
| Average number of rain days: | 13 |
Historical Extremes for June
(Rainfall since 1869 and temperature since 1929)
| Highest monthly mean daily maximum temperature: | 33.2°C (1997) |
| Lowest monthly mean daily minimum temperature: | 23.2 °C (1965) |
| Highest monthly rainfall ever recorded: | 378.7 mm (1954) |
| Lowest monthly rainfall ever recorded: | 21.8 mm (2009) |