How warm is it in Aruba in September?

Daytime highs averaged 30.0 °C, night-time lows 28.5 °C. The highest value of the past 10 years was 31.6 °C (5 Sep 2022), the lowest 27.0 °C (23 Sep 2022).

How often does it rain in Aruba in September?

On average there were 7.2 rain days (at least 1 mm) with 29.7 mm of precipitation in total. In 1 of 10 years there was no rain day at all.

How warm is the sea in Aruba in September?

The sea temperature averaged 29.0 °C (open-sea point approx. 3 km from the town).

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Aruba weather in September: temperature & rain

Photo: SIryn · CC BY-SA 4.0

🇦🇼 Weather in Aruba in September

This is what the weather in Aruba (Oranjestad) was like in September over the years 2017–2026.

Key facts at a glance

Prevailing weather: Partly cloudy

Avg. daytime high

30.0 °C

29.3 °C – 30.4 °C

Avg. night-time low

28.5 °C

27.9 °C – 29.0 °C

Avg. rain days in period

7.2

24 % of days · ≥ 1.0 mm

Avg. precipitation in period

29.7 mm

1.2 mm – 81.8 mm

Avg. cloud cover

55 %

This data source has no sunshine hours – average cloud cover is shown instead.

Avg. sea temperature

29.0 °C

Sea temperature available for 6 of 10 years.

Extremes: Highest temperature 31.6 °C (5 Sep 2022) · Lowest temperature 27.0 °C (23 Sep 2022) · Avg. daily peak wind 30 km/h

Weather mix of all days

63Sunny
87Partly cloudy
49Cloudy
59Light rain
13Rain

Summary

On average 30.0 °C during the day and 28.5 °C at night.
On average 7.2 rain days (Rain day = at least 1.0 mm of precipitation) with 29.7 mm of precipitation in total.
In 1 of 10 years there was not a single rain day.
The sea averaged 29.0 °C.
Prevailing weather: Partly cloudy.
Warmest year: 2023 (avg. 30.4 °C), coolest: 2018 (avg. 29.3 °C).
Wettest year: 2022 (81.8 mm), driest: 2023 (1.2 mm).
Extremes: 31.6 °C on 5 Sep 2022 and 27.0 °C on 23 Sep 2022.

Overall values from all 10 years. How is this calculated?

Temperatures per year

Average over your travel period

Precipitation & rain days

Year by year

2026
Avg. max29.6°Avg. min28.2°
Rain days
1 Rain days
Precipitation
7.9 mm
Avg. cloud cover
–
Sea temperature
28.3 °C
Max 30.1 °C · Min 27.8 °C
2025
Avg. max30.2°Avg. min28.7°
Rain days
4 Rain days
Precipitation
19.4 mm
Avg. cloud cover
45 % cloudy
Sea temperature
29.2 °C
Max 30.9 °C · Min 27.9 °C
2024
Avg. max30.3°Avg. min29.0°
Rain days
12 Rain days
Precipitation
43.1 mm
Avg. cloud cover
57 % cloudy
Sea temperature
29.4 °C
Max 30.9 °C · Min 28.4 °C
2023
Avg. max30.4°Avg. min29.0°
Rain days
0 Rain days
Precipitation
1.2 mm
Avg. cloud cover
42 % cloudy
Sea temperature
29.2 °C
Max 31.1 °C · Min 28.5 °C
2022
Avg. max30.0°Avg. min28.5°
Rain days
15 Rain days
Precipitation
81.8 mm
Avg. cloud cover
66 % cloudy
Sea temperature
29.5 °C
Max 31.6 °C · Min 27.0 °C
2021
Avg. max29.7°Avg. min28.4°
Rain days
5 Rain days
Precipitation
16.5 mm
Avg. cloud cover
47 % cloudy
Sea temperature
28.4 °C
Max 30.3 °C · Min 27.9 °C
2020
Avg. max30.0°Avg. min28.7°
Rain days
6 Rain days
Precipitation
18.8 mm
Avg. cloud cover
55 % cloudy
Sea temperature
–
Max 30.8 °C · Min 28.2 °C
2019
Avg. max30.1°Avg. min28.4°
Rain days
9 Rain days
Precipitation
52.7 mm
Avg. cloud cover
56 % cloudy
Sea temperature
–
Max 31.0 °C · Min 27.7 °C
2018
Avg. max29.3°Avg. min27.9°
Rain days
11 Rain days
Precipitation
24.8 mm
Avg. cloud cover
59 % cloudy
Sea temperature
–
Max 29.7 °C · Min 27.3 °C
2017
Avg. max29.9°Avg. min28.5°
Rain days
9 Rain days
Precipitation
31.2 mm
Avg. cloud cover
64 % cloudy
Sea temperature
–
Max 31.1 °C · Min 27.9 °C

Frequently asked questions

How warm is it in Aruba in September?: Daytime highs averaged 30.0 °C, night-time lows 28.5 °C. The highest value of the past 10 years was 31.6 °C (5 Sep 2022), the lowest 27.0 °C (23 Sep 2022).
How often does it rain in Aruba in September?: On average there were 7.2 rain days (at least 1 mm) with 29.7 mm of precipitation in total. In 1 of 10 years there was no rain day at all.
How warm is the sea in Aruba in September?: The sea temperature averaged 29.0 °C (open-sea point approx. 3 km from the town).

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Data sources

Weather data: Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. Snow depth is the model value for the grid cell, not the depth on the slopes. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains.
Sea temperature: MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis); Sea measuring point approx. 3 km from the location (12.490, -70.030)
Place search: Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)