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Mantasoa, Madagascar — weather and VanSky index
Small town · Analamanga, Madagascar
- Gusts up to 42 km/h — open awning with caution and watch the forecast.
- Perfect night (16°C) — comfortable without heating or air conditioning.
- High chance of rain (82%) — close windows and roof vents before heading out.
Daily forecast
The week is close to normal for these dates · tap a day for detailsMantasoa on map
Weather and index by day of year
2021–2025 archiveThis is not a forecast: it is the usual weather here on each day of the year. We take the ERA5 reanalysis archive for 2021–2025 and, for every date, compute the median of 35 days: ±3 days around the date over five years. The grid is about 25 km, so neighbouring villages share the same numbers.
Data: ERA5 (ECMWF, Copernicus Climate Change Service), 2021–2025; calculations and index by OpenVan.camp.
Climate: ERA5, Copernicus Climate Change Service (C3S).
Where the week is better
| # | City | Index by day | Index |
|---|---|---|---|
| 1 |
26° / 15°
2 days of rain
2.5 kWh
|
|
84 |
| 2 |
26° / 15°
1 day of rain
2.5 kWh
|
|
82 |
| 3 |
26° / 15°
2 days of rain
2.6 kWh
|
|
82 |
| 4 |
27° / 17°
2 days of rain
2.5 kWh
|
|
82 |
| 5 |
25° / 14°
2 days of rain
2.7 kWh
|
|
82 |
| 6 |
27° / 14°
1 day of rain
2.7 kWh
|
|
82 |
| 7 |
26° / 15°
2 days of rain
2.5 kWh
|
|
81 |
| … |
26° / 15°
2 days of rain
2.4 kWh
|
|
78 |
| # | City | Index by day | Index |
|---|---|---|---|
|
|
| City | Index by day | Index |
|---|---|---|
|
|
| City | Index by day | Index |
|---|---|---|
|
|
Frequently Asked Questions
The weekly VanSky index for Mantasoa is 78 out of 100. It is the average of the daily scores, adjusted for swings in the weather: the more uneven the week, the lower the score. Above 60 means comfortable conditions for staying, below 40 means it is worth looking elsewhere. The 7-day forecast is further up this page.
Today a 500 W panel setup will produce about 2.7 kWh in Mantasoa. The estimate uses the cloud forecast and the length of daylight. Set your own panel power with the “My panels” control at the top of the page and the figures will update.
The daily score for Mantasoa combines thermal comfort (temperature and humidity) at 35%, sunshine at 25%, precipitation at 25% and wind at 15%. Frost, storms, extreme heat or heavy rain pull the day's score down sharply. The weekly score is the daily average, adjusted for swings in the weather.
VanSky Index
A weather comfort index for travel: a 0–100 score. Recalculated daily from live weather data — temperature, rainfall, wind and sun.
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Updated: 26.10.2026
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