Water temperature in Nosy Be in September

Is it warm enough to swim in Nosy Be in September? Average water temperature in Nosy Be in September is 26.5°C and therefore suitable for comfortable swimming. The warmest sea in Nosy Be in September is 27.7°C, and the coldest is 25.8°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Nosy Be

Changes water temperature in Nosy Be in September 2025, 2024

To get an accurate forecast for the water temperature in Nosy Be for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Nosy Be, 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	26.1°C	27°C	26°C	27.3°C
2 September	26.1°C	27°C	25.9°C	27°C
3 September	26.1°C	27.2°C	25.8°C	27.2°C
4 September	26.2°C	27.1°C	25.9°C	27.1°C
5 September	26.3°C	27.2°C	25.8°C	27.2°C
6 September	26.5°C	27.3°C	25.9°C	27.3°C
7 September		27.2°C	25.9°C	27.2°C
8 September		27.3°C	25.9°C	27.3°C
9 September		27.4°C	25.9°C	27.4°C
10 September		27.3°C	25.9°C	27.3°C
11 September		27.3°C	26.1°C	27.3°C
12 September		27.3°C	25.8°C	27.3°C
13 September		27.1°C	26°C	27.2°C
14 September		27.1°C	25.9°C	27.1°C
15 September		27.1°C	25.9°C	27.1°C

Day	2024	Min	Max
16 September	27.2°C	26°C	27.2°C
17 September	27.1°C	25.9°C	27.1°C
18 September	27.1°C	26.1°C	27.1°C
19 September	27.3°C	26°C	27.3°C
20 September	27.1°C	26°C	27.1°C
21 September	27.1°C	26°C	27.2°C
22 September	27.1°C	26°C	27.3°C
23 September	27.2°C	26.1°C	27.5°C
24 September	27.4°C	26.1°C	27.6°C
25 September	27.4°C	26.2°C	27.4°C
26 September	27.3°C	26.2°C	27.3°C
27 September	27.3°C	26.2°C	27.3°C
28 September	27.5°C	26.1°C	27.5°C
29 September	27.5°C	25.9°C	27.5°C
30 September	27.6°C	26°C	27.7°C

Average water temperature in Nosy Be in September over a decade

2015	2016	2017	2018	2019
26.7°C	26.1°C	26.9°C	26.5°C	27°C

2020	2021	2022	2023	2024
26.4°C	26.5°C	26.1°C	27.2°C	27.2°C

Nosy Be sea state in September

Chart comparing the height of waves in Nosy Be 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.

Nosy Be 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
Pamandzi	26.2°C	25°C	27.5°C
Mamoudzou	26.2°C	25°C	27.4°C
Passamainty	26.2°C	25°C	27.4°C
Dzaoudzi	26.2°C	25°C	27.4°C
Koungou	26.1°C	24.9°C	27.3°C
Bandraboua	26.1°C	24.9°C	27.2°C
Sada	26.1°C	24.8°C	27.3°C
Mtsahara	26.1°C	24.8°C	27.2°C
Mtsamboro	26°C	24.8°C	27.2°C
Ouani	26°C	24.7°C	27.2°C

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Our report for Nosy Be 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