Short-Duration Thundery Showers for Jubilee Weekend

Dry and warm weather in the second week of August


Singapore, 31 July 2015 – Southwest Monsoon conditions are forecast to prevail during the next fortnight with low level winds blowing predominantly from southeast or south-southwest.

2.   In the first fortnight of August 2015, short-duration thundery showers due to strong solar heating of land areas are likely on 4 to 6 days, mostly in the late morning and early afternoon. In addition, thundery showers with gusty winds due to Sumatra squalls can be expected on 2 or 3 days in the morning. Most of the thundery showers are expected in the first week of August 2015 while dry and warm conditions with maximum temperatures of around 34 degrees Celsius can be expected in the latter half of the fortnight. In particular, for the Jubilee weekend, short-duration thundery showers are forecast in the late morning and early afternoon.

3.   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.

4.   The rainfall for the first fortnight of August 2015 is expected to be near-normal.


Review of 1 – 30 July 2015

5.   Southwest-Monsoon conditions prevailed in July 2015. During the period, the low level winds blew from the southeast or south-southwest.

6.   Singapore experienced warm conditions in July 2015 where maximum day-time temperatures of between 34 and 35 degrees Celsius were recorded on some days. The daily minimum temperature recorded during the month ranged from 22 to 28 degrees Celsius. Thundery showers fell over the island on several days mostly in the late morning and early afternoon. In addition, thundery showers with gusty winds affected Singapore on a few mornings due to the passage of a Sumatra squall. The highest daily total rainfall recorded for the month was 71mm on 17 July 2015 around Lim Chu Kang.

7.   In July 2015, most parts of Singapore received below-average rainfall. The lowest rainfall of 35mm and 55mm (65 to 80% 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% above average) of rain was recorded.



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

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