Water temperature in Oranjestad (Sint Eustatius) in September

Is it warm enough to swim in Oranjestad in September? Average water temperature in Oranjestad in September is 29.2°C and therefore suitable for comfortable swimming. The warmest sea in Oranjestad in September is 30.8°C, and the coldest is 27.9°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Oranjestad

Changes water temperature in Oranjestad in September 2025, 2024

To get an accurate forecast for the water temperature in Oranjestad for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Oranjestad, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of September.

Sea temperature

Tides

Weather forecast

You can choose any other years:

Day	2025	2024	Min	Max
1 September	29.7°C	30°C	28.2°C	30.1°C
2 September	29.8°C	29.8°C	28.4°C	30.3°C
3 September	29.8°C	29.9°C	28.4°C	30.1°C
4 September	29.8°C	29.9°C	28.4°C	30.2°C
5 September	29.8°C	29.9°C	28.4°C	30.1°C
6 September	29.8°C	29.9°C	28.3°C	30.2°C
7 September	29.8°C	30.1°C	28.5°C	30.2°C
8 September	29.8°C	30°C	28.6°C	30.3°C
9 September	30°C	29.8°C	28.6°C	30°C
10 September	29.9°C	29.7°C	28.6°C	30.1°C
11 September	29.9°C	29.8°C	28.7°C	29.9°C
12 September	29.8°C	29.8°C	27.9°C	30°C
13 September	29.9°C	29.8°C	28.1°C	29.9°C
14 September	29.8°C	30°C	28.7°C	30°C
15 September	29.8°C	30°C	28.5°C	30.3°C

Day	2025	2024	Min	Max
16 September	29.8°C	30°C	28.5°C	30.3°C
17 September	29.7°C	29.9°C	28.6°C	30.4°C
18 September	29.9°C	29.8°C	28.8°C	30.3°C
19 September	29.9°C	30°C	28.9°C	30.5°C
20 September	29.8°C	30.5°C	28.6°C	30.5°C
21 September	30°C	30.6°C	28.4°C	30.6°C
22 September	30.1°C	30.6°C	28.4°C	30.6°C
23 September	30.1°C	30.6°C	28.4°C	30.6°C
24 September	30.2°C	30.8°C	28.7°C	30.8°C
25 September	30°C	30.8°C	28.7°C	30.8°C
26 September	29.8°C	30.8°C	28.6°C	30.8°C
27 September	30.3°C	30.6°C	28.7°C	30.6°C
28 September	30.2°C	30.6°C	28.7°C	30.6°C
29 September	30.1°C	30.5°C	28.7°C	30.5°C
30 September		30.4°C	28.6°C	30.4°C

Oranjestad water temp chart in September

Average water temperature in Oranjestad in September over a decade

2015	2016	2017	2018	2019
29.1°C	29.1°C	29°C	28.8°C	29.5°C

2020	2021	2022	2023	2024
29.4°C	29.4°C	29.2°C	30.2°C	30.2°C

Oranjestad sea state in September

Chart comparing the height of waves in Oranjestad in September over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Oranjestad water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Temperature in neighboring cities

The nearest locations with the average water temperature in September. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
Gustavia	29.1°C	27.9°C	30.8°C
Baie de St-Jean	29.1°C	27.9°C	30.8°C
Chevreau island	29.1°C	27.8°C	30.8°C
Charlestown	29.2°C	27.6°C	30.7°C
Philipsburg	29.1°C	27.9°C	30.8°C
Simpson Bay Lagoon	29.2°C	27.9°C	30.8°C
Simpson Bay	29.2°C	27.9°C	30.8°C
Sandy Ground	29.2°C	27.9°C	30.8°C
Maho Beach	29.2°C	27.9°C	30.9°C
Mullet Bay	29.2°C	27.9°C	30.9°C

Oranjestad photo gallery

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Our report for Oranjestad is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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Date (day and month)

Water temperature: min 16°C

Average temperature Maximum temperature