Thundery Showers in Late Mornings and Early Afternoons Expected in Second Half of May

Slight haze also expected on a few days in the early mornings



Singapore, 15 May 2015 – During the next fortnight, Inter-Monsoon conditions are expected to prevail. During the period, the prevailing light and variable low level winds are forecast to gradually turn to blow from the southeast or south-southwest.

2For the fortnight, Singapore can expect 4 or 5 days of short-duration thundery showers in the late morning and early afternoon. In addition, 1 or 2 days of thundery showers with gusty winds due to Sumatra squalls are likely in the pre-dawn and morning. Slightly hazy conditions can be expected on a few days, in particular in the early morning, due to accumulation of particulate matter under light wind conditions.

3Rainfall for May 2015 is likely to be near-normal.

Review of 1 – 14 May 2015

4Inter-Monsoon conditions prevailed in first fortnight of May 2015. During the period, the prevailing low level winds were generally light and variable in direction

5Singapore experienced wet weather conditions on most days in the first fortnight of the month with thundery showers occurring mostly in the afternoon. On 3 May 2015, moderate to heavy thundery showers affected many areas of Singapore in the afternoon and evening due to the convergence of winds and strong daytime heating of land areas. The highest total rainfall recorded on 3 May 2015 was 119.6mm over the Bukit Panjang area.

6Approximately two thirds of Singapore received above normal rainfall in the first half of May 2015. The western part of the island around Chua Chu Kang and Nanyang Avenue received the highest rainfall of 164mm to 210mm (110% to 150% above average). The lowest rainfall of 11mm to 24mm (50% to 90% below average) was recorded over the eastern part of the island around Changi.

Rainfall 1-14 May 2015



Average rainfall for the month — 172.1 mm
Highest rainfall ever recorded — 386.6 mm (1892)
Lowest rainfall ever recorded — 41.6 mm (1997)
Average number of rain days — 15
Average daily maximum temperature — 31.6 degrees Celsius
Average daily minimum temperature — 24.8 degrees Celsius

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