September weather forecast
Nieuw Nederland, Curaçao

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Weather in September

With September, we sail into the end of summer, a month that emerges as a moderate phase between extreme summer and the upcoming fall. It balances high summer temperatures and upcoming cooler fall days, offering warmth and comfort. September presents a blend of calm, warmth, and humidity that is quintessentially Caribbean. On a significant note, this month registers a steep rise in rainfall across Curaçao, with a substantial leap to 64mm (2.52") compared to August's 44mm (1.73"). The wind speed also gradually decreases from 29.8km/h (18.5mph) in August to 26.8km/h (16.7mph) in September.

Temperature

September and October are characterised by peak temperatures, with an average high of 28.9°C (84°F).

Heat index

In September, the heat index is appraised at a tropical 34°C (93.2°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. 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 largely significant for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.

Humidity

The average relative humidity in September is 79%.

Rainfall

In September, the rain falls for 18.5 days. Throughout September, 64mm (2.52") of precipitation is accumulated. In Nieuw Nederland, Curaçao, during the entire year, the rain falls for 220.5 days and collects up to 653mm (25.71") of precipitation.

Daylight

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

Sunshine

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

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 Nieuw Nederland, Curaçao. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The average daily UV index of 7 in September transforms into the following instructions:
Resist overexposure. Safeguarding from solar damage is indispensable. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Feb 6, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What is the warmest month in Nieuw Nederland?

Nieuw Nederland experiences peak temperatures, averaging a high-temperature of 28.9°C (84°F) during September and October.

How hot does it get in Nieuw Nederland in September?

The average high-temperature, in September, in Nieuw Nederland, is 28.9°C (84°F), while the average low-temperature is 28.3°C (82.9°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in September is appraised at 34°C (93.2°F).

What is the average humidity in September in Nieuw Nederland?

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

How many days does it rain in September in Nieuw Nederland?

In September, in Nieuw Nederland, the rain falls for 18.5 days. Throughout September, 64mm (2.52") of precipitation is accumulated.

What is the average length of the day in September in Nieuw Nederland?

In Nieuw Nederland, Curaçao, the average day length in September is 12h and 11min.

When is the sunrise / sunset in September in Nieuw Nederland?

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

What are the months with the most sunshine in Nieuw Nederland?

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

How many hours of sunshine does Nieuw Nederland have in September?

In Nieuw Nederland, Curaçao, the average sunshine duration in September is 9.5h.

When is the highest UV index in Nieuw Nederland?

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

What are the months with the lowest UV index in Nieuw Nederland?

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 in Nieuw Nederland?

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

Average temperature in September
Nieuw Nederland, Curaçao

Average temperature in September - Nieuw Nederland, 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
Nieuw Nederland, Curaçao

Average pressure in September - Nieuw Nederland, 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
Nieuw Nederland, Curaçao

Average wind speed in September - Nieuw Nederland, 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
Nieuw Nederland, Curaçao

Average humidity in September - Nieuw Nederland, 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
Nieuw Nederland, Curaçao

Average rainfall in September - Nieuw Nederland, 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
Nieuw Nederland, Curaçao

Average rainfall days in September - Nieuw Nederland, 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
Nieuw Nederland, Curaçao

Average daylight in September / Average sunshine in September - Nieuw Nederland, 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
Nieuw Nederland, Curaçao

Average sunshine days in September - Nieuw Nederland, 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
Nieuw Nederland, Curaçao

Average UV index in September - Nieuw Nederland, 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
Nieuw Nederland, Curaçao

Average cloud cover in September - Nieuw Nederland, 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
Nieuw Nederland, Curaçao

Average visibility in September - Nieuw Nederland, 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).

Nieuw Nederland, Curaçao

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