Short-duration thundery showers expected over SG50 weekend

PHOTO: National Environment Agency

SINGAPORE - Short-duration thundery showers are forecast in the late morning and early afternoon over the Jubilee weekend, National Environment Agency (NEA) said in a statement today.

Southwest Monsoon conditions are expected to prevail during the next fortnight with low level winds blowing predominantly from the southeast or south-southwest, NEA added.

Short-duration thundery showers due to strong solar heating of land areas are likely on four to six days, mostly in the late morning and early afternoon.

In addition, thundery showers with gusty winds due to Sumatra squalls can be expected on two or three days in the morning.

Most of the thundery showers are expected in the first week of August while dry conditions and maximum temperatures of around 34 degrees Celsius are expected in the second week.

Slightly hazy conditions can be expected on a few days, in particular in the early morning, due to the accumulation of particulate matter under light wind conditions, NEA said.

In July, Singapore experienced dry and warm conditions on most days. Southwest-Monsoon conditions prevailed and low level winds blew from the southeast or south-southwest.

Thundery showers occurred on several days mostly in the late morning and early afternoon. Thundery showers with gusty winds were also seen on a few mornings due to the passage of a Sumatra squall.

The highest daily total rainfall recorded for the month was 71mm on July 17 in the Lim Chu Kang area.

Most parts of Singapore received below-average rainfall in July. The lowest rainfall of 35mm and 55mm (65 to 80 per cent below average) was recorded over the southwestern part of Singapore around Jurong. Rainfall was highest over the northwestern part of the island around Woodlands and Lim Chu Kang respectively, where 164mm to 185mm (0 to 25 per cent above average) of rain was recorded.

Here are the historical weather statistics for the month of August since 1869:

Average rainfall for the month - 175.4 mm
Highest rainfall ever recorded - 526.8 mm (1878)
Lowest rainfall ever recorded - 18 mm (1888)
Average number of rain days - 14
Average daily maximum temperature - 30.9 degrees Celsius
Average daily minimum temperature -  24.5 degrees Celsius