Roncone Weather in September
Average highs run from 11°C on September 1 to 8°C on September 30, and lows from 5°C to 4°C. Normal precipitation for the month is 103 mm over about 12 wet days.
September day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
September at a glance
- Average high
- 10°C
- Average low
- 4°C
- Precipitation
- 103 mm
- Record high
- 21°CSep 18, 1975
- Record low
- -6°CSep 20, 1952
- Daylight
- 13 h 18 min to 11 h 46 min
- Cloud cover
- 64%
- Humidity
- 76%
- Dew point
- 7°C
- Wind
- 6.1 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Sep 1 | 11°C | 5°C | 19°C 1997 | -1°C 1992 | 49% |
| Sep 2 | 11°C | 6°C | 17°C 1954 | -1°C 1992 | 49% |
| Sep 3 | 12°C | 6°C | 18°C 1984 | -2°C 1976 | 48% |
| Sep 4 | 12°C | 5°C | 20°C 2006 | -2°C 1976 | 47% |
| Sep 5 | 11°C | 5°C | 19°C 2006 | -4°C 2007 | 46% |
| Sep 6 | 11°C | 5°C | 18°C 1973 | -2°C 1992 | 46% |
| Sep 7 | 11°C | 6°C | 17°C 1973 | -2°C 1996 | 45% |
| Sep 8 | 11°C | 6°C | 17°C 1973 | -2°C 1996 | 44% |
| Sep 9 | 12°C | 6°C | 17°C 2016 | -3°C 1952 | 43% |
| Sep 10 | 11°C | 6°C | 17°C 2008 | -2°C 1976 | 42% |
| Sep 11 | 11°C | 6°C | 18°C 2023 | -2°C 1976 | 42% |
| Sep 12 | 11°C | 5°C | 18°C 2023 | -1°C 1953 | 41% |
| Sep 13 | 10°C | 5°C | 19°C 1987 | -4°C 2024 | 39% |
| Sep 14 | 10°C | 4°C | 21°C 1987 | -3°C 1957 | 40% |
| Sep 15 | 9°C | 4°C | 20°C 1987 | -4°C 1957 | 39% |
| Sep 16 | 10°C | 4°C | 20°C 1987 | -4°C 1971 | 39% |
| Sep 17 | 10°C | 4°C | 20°C 1987 | -6°C 1971 | 40% |
| Sep 18 | 10°C | 5°C | 21°C 1975 | -4°C 1971 | 41% |
| Sep 19 | 10°C | 5°C | 19°C 1987 | -4°C 1977 | 41% |
| Sep 20 | 10°C | 4°C | 18°C 1987 | -6°C 1952 | 40% |
| Sep 21 | 10°C | 5°C | 17°C 1961 | -4°C 1952 | 39% |
| Sep 22 | 10°C | 5°C | 17°C 1961 | -4°C 1964 | 38% |
| Sep 23 | 9°C | 5°C | 17°C 2018 | -2°C 1954 | 38% |
| Sep 24 | 9°C | 4°C | 17°C 1983 | -3°C 2015 | 38% |
| Sep 25 | 8°C | 3°C | 17°C 1967 | -4°C 2002 | 38% |
| Sep 26 | 9°C | 3°C | 16°C 1967 | -5°C 2020 | 38% |
| Sep 27 | 8°C | 3°C | 17°C 1967 | -4°C 1972 | 38% |
| Sep 28 | 8°C | 3°C | 14°C 1985 | -3°C 1952 | 39% |
| Sep 29 | 8°C | 3°C | 15°C 1975 | -3°C 2002 | 40% |
| Sep 30 | 8°C | 4°C | 14°C 1996 | -5°C 1954 | 42% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+2).
- September 1
- sunrise 6:38 AM, sunset 7:56 PM
- September 30
- sunrise 7:14 AM, sunset 7:00 PM
Other months
Sources
Records: NOAA GHCN-Daily, station IT000160220, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-29. Sun and moon: computed with the NOAA solar equations and Meeus.