Atsinanana (Toamasina)
September
Weather in Atsinanana for September 2026
Your guide to Atsinanana weather in September - trends and predictions
High waves and swell - See hour by hour.
Until now, September 2026 in Atsinanana has been nearly identical to the historical average, with a temperature of 23.5 °C (showing only a slight deviation of 0.4 °C).
The forecast for the next days in Atsinanana predicts temperatures to be around 24 °C, close to the historical average.
In general, the average temperature in Atsinanana at the beginning of September is 23.7 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 24.3 °C by the end of September.
Atsinanana in September brings notable rainfall, with an average of 16 rainy days and a total precipitation of 81.7 mm.
Official Weather Alert ⚠️
Temperatures
Rain 🌧️
14
Dry days
16
Rainy days
0
Snow days
24°/20°
Temperatures
15 km/h
Avg max wind
77 %
Avg humidity
Atsinanana Weather September
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Temperatures trend during September in Atsinanana
See the weather trend as well as the moving average line
September weather in Atsinanana day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain shower | 23° /19° | 4 mm | 5 | |
| 2 Sept. | Patchy rain possible | 23° /19° | 6.1 mm | 5 | |
| 3 Sept. | Light rain shower | 24° /19° | 8.1 mm | 5 | |
| 4 Sept. | Light rain shower | 24° /20° | 10.6 mm | 5 | |
| 5 Sept. | Patchy rain possible | 24° /19° | 2 mm | 6 | |
| 6 Sept. |  Partly cloudy | 24° /19° | 1.2 mm | 6 | |
| 7 Sept. |  Sunny | 24° /20° | 1.4 mm | 6 | |
| 8 Sept. | Patchy rain possible | 24° /20° | 3.3 mm | 5 | |
| 9 Sept. | Patchy rain possible | 24° /19° | 6.9 mm | 5 | |
| 10 Sept. | Patchy rain possible | 24° /20° | 3.5 mm | 5 | |
| 11 Sept. | Light rain shower | 24° /19° | 2.3 mm | 5 | |
| 12 Sept. | Patchy rain possible | 24° /18° | 1.7 mm | 6 | |
| 13 Sept. | Partly cloudy | 24° /19° | 1 mm | 7 | |
| 14 Sept. | Patchy rain possible | 24° /19° | 2.1 mm | 6 | |
| 15 Sept. | Light rain shower | 24° /22° | 12.6 mm | 10.2 | |
| 16 Sept. | Patchy rain possible | 24° /22° | 9.1 mm | 10.2 | |
| 17 Sept. | Patchy rain possible | 24° /22° | 8.6 mm | 10.7 | |
| 18 Sept. | Light rain shower | 24° /21° | 6.9 mm | 6 | |
| 19 Sept. | Patchy rain possible | 24° /21° | 2.7 mm | 7 | |
| 20 Sept. | Sunny | 24° /22° | 2.8 mm | 7 | |
| 21 Sept. | Patchy rain possible | 24° /21° | 1.4 mm | 7 | |
| 22 Sept. | Patchy rain possible | 24° /21° | 0 mm | 7 | |
| 23 Sept. | Patchy rain possible | 24° /22° | 0.1 mm | 7 | |
| 24 Sept. | Sunny | 25° /23° | 0.3 mm | 7 | |
| 25 Sept. | Patchy rain possible | 24° /22° | 4.2 mm | 7 | |
| 26 Sept. | Light rain shower | 23° /22° | 13.4 mm | 6 | |
| 27 Sept. | Light rain shower | 23° /22° | 7.6 mm | 6 | |
| 28 Sept. | Patchy rain possible | 23° /23° | 2.4 mm | 7 | |
| 29 Sept. | Patchy rain possible | 26° /19° | 1 mm | 7 | |
| 30 Sept. | Light rain shower | 26° /20° | 2.4 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Atsinanana in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Atsinanana forecast closer to your planned date for the most up-to-date weather information.
Change Month
Atsinanana in September - FAQ
What are the expected maximum and minimum temperatures in Atsinanana during September?
During September, expect a variety of temperatures with highs around 24° and lows near 20°, suitable for diverse activities and preferences.
How much rainfall should be expected in Atsinanana during September?
Moderate rainfall is anticipated in Atsinanana during September, with a total of 81.7 mm spread over approximately 16 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Atsinanana during September?
The average wind speed in Atsinanana during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Atsinanana
Explore the daily rainfall trends and prepare for Atsinananas September weather 💧
Typically, Atsinanana has 16 rainy days in September with a total of 81.7 mm of rainfall.
UV exposure in Atsinanana during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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