Source: Government of Singapore
16 June 2026 – The prevailing Southwest Monsoon is forecast to persist through June to the end of September 2026. For the rest of this month, low-level winds over Singapore are expected to blow from the southeast or south, shifting to the southwest or west on some days.
2. Localised short-duration thundery showers are expected over parts of the island during the late morning and afternoon on most days. On a few of these days, the thundery showers may be heavy, when there is large-scale wind convergence 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 a few days. Total rainfall for the second half of June 2026 is forecast to be above 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 in the second half of June 2026. 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, especially when prevailing winds blow from the southeast, bringing warm, humid air from the sea over land. On these nights, the temperatures may remain 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 (www.weather.gov.sg), NEA website (www.nea.gov.sg), or download the myENV app.
REVIEW OF THE PAST TWO WEEKS (1 – 15 June 2026)
5. Southwest Monsoon conditions prevailed over Singapore and the surrounding region in the first half of June 2026. The prevailing winds blew from the southeast or south on most days, and from the southwest or west on a few days.
6. Thundery showers fell over parts of the island on several days during the first half of June 2026. On 12 June 2026, regional wind convergence brought moderate to heavy thundery showers over most areas of Singapore in the late morning and early afternoon. The daily total rainfall of 65.2mm recorded at Botanic Garden that day was the highest rainfall recorded for the first half of June 2026.
7. There were some warm days during the first half of the month, with maximum temperatures above 34 degrees Celsius recorded on six days. The highest daily temperature of 35.1 degrees Celsius was recorded at Pulau Ubin on 6 June 2026. The lowest temperature of 20.1 degrees Celsius, recorded at Newton during the heavy rain event on 12 June 2026, was the lowest temperature recorded in 2026 to date (as of 16 June 2026).
8. About half of the island recorded above average rainfall in the first half of June 2026. The area around Punggol registered rainfall of 46 per cent above average, and the area around Jurong registered rainfall of 68 per cent below average.
CLIMATE STATION STATISTICS
| Long-term Statistics for June (Climatological reference period: 1991-2020) |
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|---|---|---|
| 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) |
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| 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) |
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