Aruba (Oranjestad) weather in September
Temperature, sea and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Excellent
Best time to visit: January – September
What is the weather like in Aruba (Oranjestad) in September?
In September, Aruba (Oranjestad) is hot: daytime highs average 30 °C, and even at night it stays warm at around 27 °C. The sea averages 28.8 °C – lovely and warm for swimming. With around 9 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 11 rainy days and 61 mm in total. On about 6 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. It is often windy, with gusts of around 33 km/h. All in all, September is an excellent month for a holiday in Aruba (Oranjestad).
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 95 | 90 | 76 |
| Day | 29° | 30° | 29° |
| Night | 27° | 27° | 27° |
| Sea | 28° | 29° | 29° |
| Sun | 10 h | 9 h | 8 h |
| Rain days | 7 | 11 | 19 |
More details for September
- Daylight
- 12 h 13 min06:29 – 18:42
- UV index
- 13 · extremeclear sky, noon (estimate)
- Muggy days
- 30 daysdew point 18 °C or more
- Wind
- 33 km/haverage daily peak
- Cloud cover
- 63 %on average
- Hot days
- 6 days30 °C or more
- Time zone
- UTC−4America/Aruba
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %100 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 20 %51 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in September
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
- Windproof jacket
Aruba (Oranjestad) in September: quick answers
Is Aruba (Oranjestad) hot in September?
Yes. In September, Aruba (Oranjestad) is hot: daytime highs average 30 °C and nights stay around 27 °C. On about 6 days the thermometer climbs to 30 °C or more.
Can you swim in Aruba (Oranjestad) in September?
Yes. In September the sea averages 28.8 °C – lovely and warm for swimming.
Does it rain much in Aruba (Oranjestad) in September?
Rain is frequent, with about 11 rainy days and 61 mm in total.
Aruba (Oranjestad) month by month
The whole year in Aruba (Oranjestad)All destinations: Aruba
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)