September weather forecast
Jurong East, Singapore

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Weather in September

September begins with a decrease in maximum temperature marking the commencement of a cooling trend. However, the actual decrease is quite minute having little noticeable effect on conditions. Rain is on the rise as the number of rainfall days increase preparing for the wetter months ahead. Cloud cover remains almost unaltered from the last month continuing the increasing trend towards wet conditions. Wind speed discards the increasing trend from the last two months and starts to diminish.

Temperature

The beginning of September records an average high-temperature of a still hot 30.7°C (87.3°F), almost echoing the conditions of the previous month. September nights reveal a minor deviation from daytime highs, with a mean low-temperature of 25.8°C (78.4°F).

Heat index

In September, the heat index is calculated to be a torrid 38°C (100.4°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In Jurong East, the average relative humidity in September is 74%.

Rainfall

The month with the least rainfall is September, when the rain falls for 25.4 days and typically collects 75mm (2.95") of precipitation.

Daylight

In Jurong East, Singapore, the average length of the day in September is 12h and 7min.
On the first day of the month, sunrise is at 07:00 and sunset at 19:09. On the last day of September, sunrise is at 06:51 and sunset at 18:58 +08.

Sunshine

September has the most sunshine of the year, with an average of 9h of sunshine.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 7 during September translates into the following guidance:
Resist extreme sun exposure. Guarding against solar damage is essential. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.

Frequently asked questions

Is it hot during September?

In Jurong East, in September, the average high-temperature is 30.7°C (87.3°F), and the average low-temperature is 25.8°C (78.4°F). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, is calculated to be 38°C (100.4°F).

What is the average humidity in September in Jurong East?

The average relative humidity in September is 74%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 25.4 days and typically collects 75mm (2.95") of precipitation.

How much does it rain in September?

In Jurong East, in September, it is raining for 25.4 days, with typically 75mm (2.95") of accumulated precipitation.

How many hours of daylight does Jurong East have in September?

In Jurong East, the average day length in September is 12h and 7min.

When are sunrise and sunset in September?

On the first day of September, sunrise is at 07:00 and sunset at 19:09. On the last day of the month, sunrise is at 06:51 and sunset at 18:58 +08.

What month has the most sunshine?

With an average of 9h of sunshine, September has the most sunshine of the year in Jurong East.

How long on average sun shines in September?

The average sunshine duration in September is 9h.

What is the month with the highest UV index in Jurong East?

The months with the highest UV index are January through December, with an average maximum UV index of 7.

What is the month with the lowest UV index?

January through December, with an average maximum UV index of 7, are months with the lowest UV index.

How high is the UV index in September?

The average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to Sun's UV rays.

Average temperature in September
Jurong East, Singapore

Average temperature in September - Jurong East, Singapore
  • Average high temperature in September: 30.7°C

The warmest month (with the highest average high temperature) is May (31.3°C).
The months with the lowest average high temperature are January and December (29.5°C).

  • Average low temperature in September: 25.8°C

The month with the highest average low temperature is May (26.8°C).
The coldest months (with the lowest average low temperature) are January and February (24.8°C).

Average pressure in September
Jurong East, Singapore

Average pressure in September - Jurong East, Singapore
  • Average pressure in September: 1009.6mbar

The month with the highest atmospheric pressure is February (1010.2mbar).
The month with the lowest atmospheric pressure is May (1008.5mbar).

Average wind speed in September
Jurong East, Singapore

Average wind speed in September - Jurong East, Singapore
  • Average wind speed in September: 8.8km/h

The windiest month (with the highest average wind speed) is January (11.8km/h).
The calmest month (with the lowest average wind speed) is April (7km/h).

Average humidity in September
Jurong East, Singapore

Average humidity in September - Jurong East, Singapore
  • Average humidity in September: 74%

The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (73%).

Average rainfall in September
Jurong East, Singapore

Average rainfall in September - Jurong East, Singapore
  • Average rainfall in September: 75mm

The wettest month (with the highest rainfall) is December (233mm).
The driest month (with the least rainfall) is September (75mm).

Average rainfall days in September
Jurong East, Singapore

Average rainfall days in September - Jurong East, Singapore
  • Average rainfall days in September: 25.4 days

The month with the highest number of rainy days is December (30.3 days).
The month with the least rainy days is February (23.3 days).

Average daylight in September /
Average sunshine in September
Jurong East, Singapore

Average daylight in September / Average sunshine in September - Jurong East, Singapore
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 0min).

  • Average sunshine in September: 9h and 0min

The month with the most sunshine is September (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).

Average sunshine days in September
Jurong East, Singapore

Average sunshine days in September - Jurong East, Singapore
  • Average sunshine days in September: 2.6 days

The month with the most sunshine days is February (3.6 days).
The month with the least sunshine days is December (0.4 days).

Average UV index in September
Jurong East, Singapore

Average UV index in September - Jurong East, Singapore
  • Average UV index in September: 7

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

Average cloud cover in September
Jurong East, Singapore

Average cloud cover in September - Jurong East, Singapore
  • Average cloud cover in September: 33

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is September (Cloud cover 33).

Average visibility in September
Jurong East, Singapore

Average visibility in September - Jurong East, Singapore
  • Average visibility in September: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are November and December (9km).

Jurong East, Singapore

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