Mostly Short-Duration Thundery Showers In The First Fortnight Of July 2026

Source: Government of Singapore

1 July 2026 – Southwest Monsoon conditions are prevailing over Singapore and the surrounding region and are expected to continue in the coming fortnight, with winds blowing mainly from the southeast or southwest.

2.            Localised short-duration thundery showers are expected over parts of the island on several days in the first fortnight of July 2026, particularly in the late morning and afternoon. Drier conditions are forecast in the second week of July 2026, with a few dry and occasionally windy days. Sumatra squalls may also bring widespread thundery showers and gusty winds during the pre-dawn and early morning hours on one or two days. Total rainfall for the first fortnight of July 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 slightly exceed 34 degrees Celsius on days with less cloud cover. Some nights may also be warm and humid, with temperatures remaining above 28 degrees Celsius.

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 (16 – 30 June 2026)

5.            Southwest Monsoon conditions prevailed over Singapore and the surrounding region in the second fortnight of June 2026, with winds blowing mostly from the southeast or southwest.

6.            Thundery showers fell over parts of the island on most days during the second fortnight of June 2026. On 17 June 2026, regional wind convergence brought heavy thundery showers over the northern and western parts of Singapore in the late morning and early afternoon. The daily total rainfall of 88.0mm recorded at Old Choa Chu Kang Road that day was the highest rainfall recorded for the second fortnight of June 2026.

7.         The daily maximum temperatures in the second fortnight of June 2026 were between 32 degrees Celsius and 34 degrees Celsius on most days. The highest daily temperature of 34.6 degrees Celsius was recorded at Pulau Ubin on 27 June 2026.

8.         The central and northeastern parts of Singapore recorded below average rainfall while the other parts of the island mostly recorded above average rainfall in the second fortnight of June 2026. The area around Admiralty registered rainfall of 89 per cent above average, and the area around Lower Pierce Reservoir registered rainfall of 54 per cent below average.

CLIMATE STATION STATISTICS

Long-term Statistics for July   (Climatological reference period: 1991-2020)
Average daily maximum temperature:	31.4	°C
Average daily minimum temperature:	25.4	°C
Average monthly temperature:	28.2	°C
Average rainfall:	146.6	mm
Average number of rain days:	14
Historical Extremes for July   (Rainfall since 1869 and temperature since 1929)
Highest monthly mean daily maximum temperature:	32.4	°C (1997)
Lowest monthly mean daily minimum temperature:	22.9	°C (1975)
Highest monthly rainfall ever recorded:	527.3	mm (1890)
Lowest monthly rainfall ever recorded:	12.2	mm (2019)

 

METEOROLOGICAL SERVICE SINGAPORE
1 Jul 2026