Atsinanana (Toamasina)
September
Weather in Atsinanana for September 2025
Your guide to Atsinanana weather in September - trends and predictions
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 25 °C by the end of September.
Atsinanana experiences an exceptionally high level of rainfall in September, with more than 20 rainy days on average.
Is September a good time to visit Atsinanana? check out the best time to travel to Atsinanana page.
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7
Dry days
23
Rainy days
0
Snow days
24°/20°
Temperatures
14 km/h
Avg max wind
78 %
Avg humidity
Atsinanana in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  23° | 2  23° | 3 24° | 4  23° | 5 24° | 6 24° | 7  25° |
| 8 24° | 9 24° | 10 24° | 11 24° | 12  25° | 13 25° | 14 24° |
| 15 24° | 16 24° | 17 24° | 18 24° | 19 25° | 20 26° | 21 25° |
| 22 25° | 23 25° | 24 25° | 25  25° | 26 24° | 27 25° | 28 25° |
| 29 26° | 30 25° |
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Temperatures trend during September in Atsinanana
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Partly cloudy | 23° /18° | 2 mm | 6 | |
| 2 Sept. | Patchy rain possible | 23° /18° | 0.9 mm | 6 | |
| 3 Sept. | Light rain shower | 24° /19° | 4.3 mm | 6 | |
| 4 Sept. | Moderate or heavy rain shower | 23° /20° | 13.7 mm | 6 | |
| 5 Sept. | Patchy rain possible | 24° /19° | 3.4 mm | 6 | |
| 6 Sept. | Partly cloudy | 24° /19° | 2.3 mm | 6 | |
| 7 Sept. | Sunny | 25° /20° | 1.5 mm | 7 | |
| 8 Sept. | Patchy rain possible | 24° /19° | 1.1 mm | 6 | |
| 9 Sept. | Patchy rain possible | 24° /18° | 0.2 mm | 6 | |
| 10 Sept. | Patchy rain possible | 24° /19° | 0.5 mm | 6 | |
| 11 Sept. | Light rain shower | 24° /19° | 1.6 mm | 6 | |
| 12 Sept. | Cloudy | 25° /19° | 0.2 mm | 6 | |
| 13 Sept. | Partly cloudy | 25° /19° | 1.6 mm | 7 | |
| 14 Sept. | Partly cloudy | 24° /20° | 2 mm | 7 | |
| 15 Sept. | Cloudy | 24° /19° | 0.9 mm | 6 | |
| 16 Sept. | Patchy rain possible | 24° /19° | 2.5 mm | 6 | |
| 17 Sept. | Partly cloudy | 24° /18° | 0.1 mm | 6 | |
| 18 Sept. | Patchy rain possible | 24° /18° | 0.3 mm | 6 | |
| 19 Sept. | Patchy rain possible | 25° /18° | 1.9 mm | 7 | |
| 20 Sept. | Light rain shower | 26° /20° | 2.3 mm | 7 | |
| 21 Sept. | Patchy rain possible | 25° /20° | 2 mm | 7 | |
| 22 Sept. | Light rain shower | 25° /21° | 8.2 mm | 6 | |
| 23 Sept. | Light rain shower | 25° /20° | 6.2 mm | 6 | |
| 24 Sept. | Patchy rain possible | 25° /21° | 7.2 mm | 7 | |
| 25 Sept. | Patchy light drizzle | 25° /20° | 3 mm | 7 | |
| 26 Sept. | Light rain shower | 24° /20° | 4.7 mm | 6 | |
| 27 Sept. | Patchy rain possible | 25° /21° | 3.2 mm | 6 | |
| 28 Sept. | Light rain shower | 25° /19° | 5.7 mm | 6 | |
| 29 Sept. | Patchy rain possible | 26° /19° | 1.4 mm | 7 | |
| 30 Sept. | Light rain shower | 25° /21° | 3.5 mm | 7 | |
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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.
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?
Significant rainfall exceeding 110.4 mm is expected in Atsinanana during September, occurring over more than 23 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Atsinanana during September?
The average wind speed in Atsinanana during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Atsinanana in September?
As you prepare for your trip to Atsinanana in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Atsinanana, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
September rainfall patterns in Atsinanana
Explore the daily rainfall trends and prepare for Atsinananas September weather 💧
UV exposure in Atsinanana during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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