Oranjestad
Aruba
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Oranjestad, Aruba

The outstanding perspective of the Dutch colonial architecture in Oranjestad, Aruba
The outstanding perspective of the Dutch colonial architecture in Oranjestad, Aruba
September, the first month of the autumn, in Oranjestad, is still a hot month, with average temperature varying between 26.9°C (80.4°F) and 32.7°C (90.9°F).

Temperature

The warmest month is September, with an average high-temperature of 32.7°C (90.9°F) and an average low-temperature of 26.9°C (80.4°F).

Humidity

In Oranjestad, the average relative humidity is 76.8%.

Rainfall

In Oranjestad, Aruba, during September, the rain falls for 3.9 days and regularly aggregates up to 45.5mm (1.8") of precipitation. In Oranjestad, Aruba, during the entire year, the rain falls for 64.6 days and collects up to 471.8mm (18.6") of precipitation.

Sea temperature

In Oranjestad, the average seawater temperature in September is 29.1°C (84.4°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In September, the average length of the day in Oranjestad is 12.2h.

Sunshine

The average sunshine in September is 6h.

UV index

February through September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index estimate of 11, and higher, represents an extreme health hazard from the exposure to the Sun's UV radiation for the average person.
In September, the average maximum UV index of 12 translate into the following recommendations:
Take all necessary precautions, as unprotected skin can burn in minutes. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the warmest month in Oranjestad?

The warmest month is September, with an average high-temperature of 32.7°C (90.9°F) and an average low-temperature of 26.9°C (80.4°F).

What is the temperature in September in Oranjestad?

In September, the average high-temperature is 32.7°C (90.9°F), and the average low-temperature is 26.9°C (80.4°F).

What is the average humidity in September in Oranjestad?

The average relative humidity in September in Oranjestad is 76.8%.

How much does it rain in Oranjestad in September?

In Oranjestad, Aruba, in September, it is raining for 3.9 days, with typically 45.5mm (1.8") of accumulated precipitation.

What is the water temperature in September in Oranjestad?

In Oranjestad, the average seawater temperature in September is 29.1°C (84.4°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Oranjestad have in September?

In September, the average length of the day is 12.2h.

How long on average sun shines in September in Oranjestad?

In Oranjestad, the average sunshine in September is 6h.

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

February through September, with an average maximum UV index of 12, are months with the highest UV index in Oranjestad, Aruba.

What is the UV index intensity in September in Oranjestad?

In Oranjestad, the average daily maximum UV index in September is 12. A UV Index reading of 11, and higher, represents an excessive health risk from the exposure to the Sun's UV radiation.
Average temperature in September - Oranjestad, Aruba
  • Average high temperature in September: 32.7°C

The warmest month (with the highest average high temperature) is September (32.7°C).
The month with the lowest average high temperature is January (30°C).

  • Average low temperature in September: 26.9°C

The month with the highest average low temperature is September (26.9°C).
The coldest month (with the lowest average low temperature) is January (24.5°C).

Average humidity in September - Oranjestad, Aruba
  • Average humidity in September: 76.8%

The month with the highest relative humidity is November (79.1%).
The month with the lowest relative humidity is March (75.7%).

Average rainfall in September - Oranjestad, Aruba
  • Average rainfall in September: 45.5mm

The wettest month (with the highest rainfall) is November (94mm).
The driest month (with the lowest rainfall) is March (8.7mm).

Average rainfall days in September - Oranjestad, Aruba
  • Average rainfall days in September: 3.9 days

The month with the highest number of rainy days is December (11.4 days).
The month with the lowest number of rainy days is March (1.8 days).

Average sea temperature in September - Oranjestad, Aruba
  • Average sea temperature in September: 29.1°C

The best month for swimming (with the highest average sea temperature) is October (29.2°C).
The coldest month (with the lowest average sea temperature) is February (26.3°C).

Average daylight in September / Average sunshine in September - Oranjestad, Aruba
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 12.9h).
The month with shortest days is December (Average daylight: 11.4h).

  • Average sunshine in September: 6h

Months with most sunshine are November and December (Average sunshine: 10h).
The month with least sunshine is April (Average sunshine: 3h).

Average UV index in September - Oranjestad, Aruba
  • Average UV index in September: 12

Months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).