Monthly Archives: November 2023

November 16, 2023

More Thundery Showers Expected for the Rest of November 2023

Singapore, 16 November 2023 – Inter-monsoon conditions are prevailing over the region, with the low-level winds generally light and variable in direction.

2    In the coming fortnight, the monsoon rain band is forecast to lie close to the equatorial region, bringing more thundery showers to Singapore. On most days during this period, short-duration thundery showers are expected over parts of the island in the afternoon, extending into the evening on a few days. The thundery showers could be widespread and heavy on some of these days. The total rainfall for the second fortnight of November 2023 is forecast to be above average over most parts of the island.

3    Warm conditions are expected in the coming fortnight. The daily temperature is likely to range between 24 degrees Celsius and 34 degrees Celsius on most days. The daily maximum temperature may reach a high of around 35 degrees Celsius on a few days when there are less clouds in the sky.

4     For updates of the daily weather forecast, please visit the MSS website (https://www.weather.gov.sg), NEA website (www.nea.gov.sg), or download the myENV app.

 

REVIEW (1 – 15 November 2023)

5    Singapore and the surrounding region experienced inter-monsoon conditions in the first half of November 2023. The low-level winds that blew predominantly from the southeast or southwest since June 2023 weakened and became mostly light and variable in direction.

6    Thundery showers occurred over parts of Singapore mainly in the afternoon on most days in the first half of the month. On 7 November 2023, widespread moderate to heavy thundery showers fell over many parts of the island in the afternoon. The daily total rainfall of 69.7 mm recorded at Woodland that day was the highest rainfall recorded for the first half of November 2023.

7    The first half of November 2023 was generally warm with daily maximum temperatures above 33 degrees Celsius on most days. The highest daily maximum temperature of 35.8 degree Celsius was recorded at Newton on 3 November 2023. This temperature reading ties with the record for highest daily maximum temperature in Singapore in the month of November (last recorded at Admiralty on 18 November 2019) since temperature records started in 1929.

8    Most parts of the island recorded below-average rainfall in the first half of November 2023. Queenstown recorded rainfall of 84 per cent below-average, and Simei recorded rainfall of 38 per cent above-average.

 

 

 

CLIMATE STATION STATISTICS

Long-term Statistics for November
(Climatological reference period: 1991 – 2020)

Average daily maximum temperature: 31.2 °C
Average daily minimum temperature: 24.6 °C
Average monthly temperature: 27.2 °C
Average rainfall: 252.3 mm
Average number of rain days: 19

 

Historical Extremes for November
(Rainfall since 1869 and temperature since 1929)

Highest monthly mean daily maximum temperature: 32.3°C (2019)
Lowest monthly mean daily minimum temperature: 22.4 °C (1933)
Highest monthly rainfall ever recorded: 521.5 mm (1874)
Lowest monthly rainfall ever recorded: 53.5 mm (1981)

 

November 1, 2023

Thundery Showers on Most Days with Onset of Inter-Monsoon Conditions

Singapore, 1 November 2023 – The Southwest Monsoon is coming to an end and inter-monsoon conditions are expected to set in during the first week of November 2023. The inter-monsoon period is characterised by light and variable winds, and thunderstorms which may at times be heavy. Lightning activity tends to be higher during the inter-monsoon months than other months of the year.

2    Afternoon thundery showers are expected on most days in the first half of November 2023. The showers may extend into the evening on a few days. November is climatologically one of the wettest months for Singapore. While showers are expected on most days, we expect below average rainfall in the first fortnight of November 2023.

3    The daily maximum temperatures in the first fortnight of November 2023 are forecast to range between 33 degrees Celsius and 35 degrees Celsius on most days.

4     For updates of the daily weather forecast and PSI readings, please visit the MSS website (https://www.weather.gov.sg), NEA website (www.nea.gov.sg), or download the myENV app.

 

REVIEW (1 – 31 October 2023)

5    Southwest Monsoon conditions prevailed over Singapore and the surrounding region in October 2023, with low-level winds blowing mostly from the southeast or southwest.

6    The second fortnight of October 2023 saw more showers as the rain band shifted closer to the Equatorial region. Short-duration thundery showers fell over parts of the island in the afternoon on most days. The showers extended into the evening on a few of these days. On 23 October 2023, widespread moderate to heavy thundery showers occurred over many parts of the island in the afternoon. The daily total rainfall of 88.4 mm recorded at Jurong West that day was the highest rainfall recorded for October 2023.

7    Following the haze episode which affected Singapore on 7 and 8 October 2023, the haze situation gradually improved with increased showers over Singapore and the surrounding region later in the month.

8    October 2023 was generally warm with daily maximum temperatures above 34 degrees Celsius on 25 days. On 9 October 2023, temperatures exceeded 35 degrees Celsius in several parts of Singapore, with 36.3 degrees Celsius recorded at Admiralty. This is the highest temperature ever recorded in Singapore in the month of October, surpassing the previous record high of 35.7 degrees Celsius recorded on 14 October 2001 and 13 October 2019.

9    Below average rainfall was recorded across the island in October 2023 with the highest anomaly of 72 per cent below-average recorded at Yio Chu Kang.

 

 

CLIMATE STATION STATISTICS

Long-term Statistics for November
(Climatological reference period: 1991 – 2020)

Average daily maximum temperature: 31.2 °C
Average daily minimum temperature: 24.6 °C
Average monthly temperature: 27.2 °C
Average rainfall: 252.3 mm
Average number of rain days: 19

 

Historical Extremes for November
(Rainfall since 1869 and temperature since 1929)

Highest monthly mean daily maximum temperature: 32.3°C (2019)
Lowest monthly mean daily minimum temperature: 22.4 °C (1933)
Highest monthly rainfall ever recorded: 521.5 mm (1874)
Lowest monthly rainfall ever recorded: 53.5 mm (1981)