Castelletto Ticino weather: 16-day forecast
Today in Castelletto Ticino: fog, 21° by day and 9° at night, 0% chance of rain. Next 7 days: 5 days with rain likely; warmest on Saturday at 21°. A normal October day here reaches 18°.
- Sat 17/1021° 9°0% · 1.6 mm
- Sun 18/1016° 14°90% · 15.9 mm
- Mon 19/1019° 14°84% · 1.6 mm
- Tue 20/1016° 14°91% · 41.4 mm
- Wed 21/1017° 10°94% · 11.4 mm
- Thu 22/1019° 9°70%
- Fri 23/1018° 8°18%
Water20.1 °CSun 20.0°Mon 19.9°
Modelled at 1 m depth, not measured · Eawag Alplakes · as of 2026-10-17
Days 8–16 (less certain)
- Sat 24/1017° 8°9%
- Sun 25/1018° 9°17%
- Mon 26/1019° 9°17%
- Tue 27/1020° 10°21%
- Wed 28/1019° 10°24%
- Thu 29/1020° 10°23%
- Fri 30/1018° 9°18%
- Sat 31/1017° 9°–
- Sun 01/110° 0°–
Forecast as of 2026-10-17 · Open-Meteo (CC BY 4.0)
Wind on the water at Castelletto Ticino
Wind →Arona
– kn
Castelletto Ticino climate by month
July is the warmest month in Castelletto Ticino (around 28° by day); May has the most rain days (about 17).
| Month | Day | Night | Rain days (≥1 mm) | Rain |
|---|---|---|---|---|
| January | 8° | 0° | 7 | 60 mm |
| February | 11° | 2° | 7 | 72 mm |
| March | 14° | 4° | 9 | 113 mm |
| April | 18° | 7° | 10 | 132 mm |
| May | 21° | 12° | 17 | 192 mm |
| June | 26° | 17° | 12 | 146 mm |
| July | 28° | 19° | 12 | 119 mm |
| August | 28° | 19° | 10 | 144 mm |
| September | 23° | 15° | 11 | 119 mm |
| October | 18° | 11° | 11 | 187 mm |
| November | 12° | 5° | 11 | 139 mm |
| December | 9° | 1° | 7 | 74 mm |
Averages 2016–2025 from reanalysis data (Open-Meteo); a single year can differ a lot.
Averages 2016–2025, Open-Meteo archive (ERA5).