Piancastagnaio: which weather forecast is most accurate
Data come from the province of Siena (reference capital: Siena), combined with nearby provinces weighted by distance. Over the last two weeks, 3BMeteo got it wrong least often in this area (73/100).
No weather alerts today for Piancastagnaio · Source: Italian Civil Protection Department
Most accurate in this area, last 2 weeks
3BMeteo
Rain nearby, right now
The nearest rain core is less than 1 km north of the centre of Piancastagnaio, with light intensity.
Observed data from the latest radar sweep (11:25) · Radar-DPC, Italian Civil Protection
Yesterday in Siena
Observed data for 11 OctoberThe reference provincial capital for Piancastagnaio is Siena
How we calculate the score
Every day we compare the forecasts of 5 weather services with data measured in the provincial capitals. The score runs from 0 to 100 and covers the last 14 days: 75% is about forecasting rain and 25% about temperature. Piancastagnaio is not a measuring point: the score combines data from 8 provinces, weighted by distance.
How much each province counts
For this town the score combines data from 8 provinces, weighted by geographic distance.
Provinces considered:
Weather service ranking for this area
- 13BMeteo73/100
- 2Meteo.it70/100
- 3Meteo Aeronautica Militare64/100
- 4Apple Weather64/100No public website
- 5iLMeteo.it52/100
Yesterday's report card
11 OctoberForecasts made the day before for Siena, compared with what actually happened
- Meteo.itHighspot onLowspot onRaincorrect
- iLMeteo.itHighoffLowspot onRaincorrect
- 3BMeteoHighcloseLowspot onRaincorrect
- Meteo Aeronautica MilitareHighcloseLowspot onRaincorrect
- Apple WeatherHighcloseLowspot onRaincorrect
Spot on = within 2 degrees · Close = within 4 degrees
Ongoing streaks
- Meteo.it has called the rain right for 39 days in a row
- Meteo.it has nailed the low for 5 days in a row
- 3BMeteo has called the rain right for 4 days in a row
The situation around Piancastagnaio
A wet week around Siena, with frequent precipitation. The 14-day ranking for the Piancastagnaio area is led by 3BMeteo. Looking at temperatures only, first place in the provincial capital goes to Meteo.it. Light wind for most of the week. Yesterday, in the check on the provincial capital, the week's No. 2 moved up to No. 1. Nearby municipalities (Castell'Azzara, Abbadia San Salvatore) have the same service in first place. One more note: yesterday the service ranked last overall was among the two most accurate on the provincial capital's report card.
Updated on 13 October 2026
Sun and moon today
3 fewer minutes of daylight than yesterday
Waxing crescent, 5% illuminated
Map of Piancastagnaio
Loading map…
Nearby towns
Localities in Piancastagnaio
Get to know Piancastagnaio
Over the last two months, next-day forecasts for the Siena area had an average accuracy index of 70 out of 100 (average across all services). It is among the hardest areas to forecast in Italy: ranked 54 of 107.
Average accuracy by how far ahead the forecast is made:
- For tomorrow70/100 · very reliable
- 2 days ahead69/100 · fairly reliable
- 5 days ahead65/100 · fairly reliable