September weather forecastEmmastad, Curaçao
September
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, when the average high-temperature reaches 28.9°C (84°F), are the warmest months.Heat index
In September, the average heat index is computed to be a hot 34°C (93.2°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.Records show heat index calculations are tailored for shaded regions and mild winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
The average relative humidity in September is 79%.Rainfall
In Emmastad, during September, the rain falls for 18.5 days and regularly aggregates up to 64mm (2.52") of precipitation. Throughout the year, in Emmastad, there are 220.5 rainfall days, and 653mm (25.71") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 11min.On the first day of September, 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
August and September, with an average of 9.5h of sunshine, are months with the most sunshine.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 7 transforms into these recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 12h and 12min
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 30min
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: 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: 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: 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: 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).
