2 June 2026 – Winds over Singapore are forecast to strengthen and blow from the southeast or southwest in early June 2026, as the Southwest Monsoon sets in over the region. The Southwest Monsoon typically extends into September and is generally a drier season compared to other times of the year.
2 In the first fortnight of June 2026, localised short-duration thundery showers are expected over parts of the island in the late morning and early afternoon on some days. In addition, Sumatra squalls may bring widespread thundery showers and gusty winds in the pre-dawn and early morning on a few days. The total rainfall for the first fortnight of June 2026 is forecast to be below 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 and may reach around 35 degrees Celsius on a few days when there is less cloud coverage. The nights are likely to be warm and humid. On several nights, the temperatures may stay above 28 degrees Celsius.
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 (15 – 31 May 2026)
5 Inter-monsoon conditions prevailed over Singapore and the surrounding region with winds generally light and variable in direction. On some days, the winds shifted to blow from the southeast or southwest.
6 In the second fortnight of May 2026, thundery showers fell over parts of the island in the afternoon on most days. Sumatra squalls also brought thundery showers and gusty winds over Singapore in the pre-dawn and morning on a few days. On 16 May 2026, regional convergence of winds brought heavy thundery showers over many areas of Singapore in the morning. The daily total rainfall of 102.4 mm recorded at Tuas South that day was the highest rainfall recorded for the second fortnight of May 2026.
7 The daily maximum temperatures in the second fortnight of May 2026 were above 33 degrees Celsius on most days. The highest daily maximum temperature of 35.7 degrees Celsius was recorded at Ang Mo Kio on 20 May 2026.
8 The eastern, southern and southwestern parts of Singapore recorded above average rainfall while the other parts of the island mostly recorded below average rainfall in the second fortnight of May 2026. The area around Sentosa registered rainfall of 94 per cent above average, and the area around Jurong West registered rainfall of 34 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) |