September in Aosta
What to plant in September in Aosta
Direct sowing, recommended transplants, and average climate risks for a vegetable garden in Aosta in September.
Operational summary
Crop actions
| Action | Crops | Success probability |
|---|---|---|
| Direct sowing0 crops | - | - |
| Start indoors0 crops | - | - |
| Transplants0 crops | - | - |
| Wait2 crops | Radish, Arugula | Low50% |
Direct sowing (0)
- -
Start indoors (0)
- -
Transplants (0)
- -
Wait (2)
Crops for this month
| Action | Crops | Success probability |
|---|---|---|
| Direct sowing0 crops | - | - |
| Start indoors0 crops | - | - |
| Transplants0 crops | - | - |
| Wait2 crops | Low50% |
Direct sowing (0)
- -
Start indoors (0)
- -
Transplants (0)
- -
Wait (2)
Local climate
Altitude and microclimates
- Altitude range
- 548-2586 m a.s.l.
- Total altitude difference
- 2038 m
- Standard deviation
- 486.76 m
- Main altitude bands
- 600-899 m (28.75%), 300-599 m (25.88%)
In a municipality with this much terrain variation, frost, soil warming, and heat stress can differ between valley or lowland gardens and higher hamlets. Use this month's windows as an average guide and adjust sowing and transplanting to the garden's actual altitude.
Method and limits
What should I watch in September in Aosta?
Check irrigation and soil moisture: the average dry spell reaches 8.07 days, even with average rain of 75.2 mm. Monthly averages: minimum 6.5 °C, maximum 16.25 °C, rain 75.2 mm, and dry spell 8.07 days.
Why wait on Radish in September?
The available Radish window is from September 1 to September 8 and remains classified as risky. The best estimated success rate is 50%; before starting, check: overall climate risk is moderate.
Sources and limits
Use these dates as practical guidance, not fixed deadlines. Exposure, soil, containers, irrigation, and the next few days' forecast can move the right timing earlier or later.
- Municipality registry: ISTAT
- Municipal altimetry and altitude bands: ISTAT geographic statistics for municipalities 2021
- Local historical climate: NASA POWER Daily API
- Representative weather point: GeoNames
- Crop needs: OrtoClima
- Last data update: June 21, 2026


