September weather forecast
Emmastad, Curaçao

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Weather in September

September weather in Emmastad is marked by its exceptionally high rainfall with 64mm (2.52") precipitation, the highest so far in the year. The temperature stays fairly steady at 28.9°C (84°F), marking no significant change from August. Amidst the rainy spells, there are plenty of sunshine hours, accounting for sultry weather. The gradually decreasing wind speed in September provides a breather from the otherwise humid conditions. As Emmastad makes its way into October, the city braces for the highest rainfall of the year.

Temperature

September and October are the warmest months in Emmastad, with an average high-temperature of 28.9°C (84°F).

Heat index

The heat index value for September is evaluated at a hot 34°C (93.2°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
The heat index's values are generally associated with conditions in shade and light breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.

Humidity

In September, the average relative humidity is 79%.

Rainfall

In Emmastad, in September, it is raining for 18.5 days, with typically 64mm (2.52") of accumulated precipitation. Throughout the year, in Emmastad, Curaçao, there are 220.5 rainfall days, and 653mm (25.71") of precipitation is accumulated.

Daylight

In Emmastad, Curaçao, the average length of the day in September is 12h and 11min.
On the first day of September in Emmastad, sunrise is at 06:25 and sunset at 18:45. On the last day of the month, sunrise is at 06:24 and sunset at 18:26 AST.

Sunshine

The months with the most sunshine are August and September, with an average of 9.5h of sunshine.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Emmastad, Curaçao. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index, 7 in September, converts into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.

Frequently asked questions

What month is the hottest in Emmastad?

Emmastad's temperatures tend to hit their maximum during September and October, with an average high-temperature of 28.9°C (84°F).

How hot is September in Emmastad?

During September, Emmastad experiences an average high-temperature of 28.9°C (84°F) and a low-temperature of 28.3°C (82.9°F). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 34°C (93.2°F).

What is the average humidity in September in Emmastad?

In Emmastad, Curaçao, the average relative humidity in September is 79%.

How many days does it rain in September in Emmastad?

In Emmastad, Curaçao, in September, during 18.5 rainfall days, 64mm (2.52") of precipitation is typically accumulated.

What is the average length of the day in September in Emmastad?

In Emmastad, the average day length in September is 12h and 11min.

What time are sunrise and sunset in September in Emmastad?

On the first day of September in Emmastad, Curaçao, sunrise is at 06:25 and sunset at 18:45. On the last day of the month, sunrise is at 06:24 and sunset at 18:26 AST.

What are the months with the most sunshine in Emmastad?

August and September, with an average of 9.5h of sunshine, are months with the most sunshine in Emmastad, Curaçao.

How long on average sun shines in September in Emmastad?

In September, the average sunshine duration is 9.5h.

What is the month with the highest UV index in Emmastad?

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

When is the lowest UV index in Emmastad?

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

What is the UV index intensity in September in Emmastad?

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

Average temperature in September
Emmastad, Curaçao

Average temperature in September - Emmastad, Curaçao
  • Average high temperature in September: 28.9°C

The warmest months (with the highest average high temperature) are September and October (28.9°C).
The month with the lowest average high temperature is February (26.4°C).

  • Average low temperature in September: 28.3°C

The month with the highest average low temperature is September (28.3°C).
The coldest month (with the lowest average low temperature) is February (25.9°C).

Average pressure in September
Emmastad, Curaçao

Average pressure in September - Emmastad, Curaçao
  • Average pressure in September: 1010.7mbar

The month with the highest atmospheric pressure is January (1013.1mbar).
The months with the lowest atmospheric pressure are October and November (1010.1mbar).

Average wind speed in September
Emmastad, Curaçao

Average wind speed in September - Emmastad, Curaçao
  • Average wind speed in September: 26.8km/h

The windiest month (with the highest average wind speed) is June (34.1km/h).
The calmest month (with the lowest average wind speed) is November (24.6km/h).

Average humidity in September
Emmastad, Curaçao

Average humidity in September - Emmastad, Curaçao
  • Average humidity in September: 79%

The month with the highest relative humidity is May (83%).
The months with the lowest relative humidity are October, November and December (78%).

Average rainfall in September
Emmastad, Curaçao

Average rainfall in September - Emmastad, Curaçao
  • Average rainfall in September: 64mm

The wettest month (with the highest rainfall) is November (129mm).
The driest month (with the least rainfall) is February (25mm).

Average rainfall days in September
Emmastad, Curaçao

Average rainfall days in September - Emmastad, Curaçao
  • Average rainfall days in September: 18.5 days

The month with the highest number of rainy days is November (24.7 days).
The month with the least rainy days is April (13.9 days).

Average daylight in September /
Average sunshine in September
Emmastad, Curaçao

Average daylight in September / Average sunshine in September - Emmastad, Curaçao
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 24min).

  • Average sunshine in September: 9h and 3min

The months with the most sunshine are August and September (Average sunshine: 9h and 30min).
The months with the least sunshine are March, April and December (Average sunshine: 8h and 30min).

Average sunshine days in September
Emmastad, Curaçao

Average sunshine days in September - Emmastad, Curaçao
  • Average sunshine days in September: 9 days

The month with the most sunshine days is May (14.3 days).
The month with the least sunshine days is November (3.7 days).

Average UV index in September
Emmastad, Curaçao

Average UV index in September - Emmastad, Curaçao
  • 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
Emmastad, Curaçao

Average cloud cover in September - Emmastad, Curaçao
  • Average cloud cover in September: 24

The months with the most cloud cover are March and April (Cloud cover 41).
The month with the least cloud cover is September (Cloud cover 24).

Average visibility in September
Emmastad, Curaçao

Average visibility in September - Emmastad, Curaçao
  • Average visibility in September: 10km

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

Emmastad, Curaçao

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