September is one of the warmer months of the year in Venice, with average highs near 29.4°C and lows around 26°C (mean 27.7°C). It is a relatively wet time of year, averaging 174 mm of rainfall and 80% relative humidity across the period.
September is one of the warmer months of the year in Venice. Across 45 years of records, the warmest September in Venice was 2024 — when the month averaged 29.1°C — while the coldest were 1984, 1985 and 2001 at 26.6°C. Typical September days reach 29.4°C with nights near 26°C. The long-term trend is warming, about 0.3°C per decade.
September is a relatively wet time of year in Venice, averaging 174 mm of rainfall. The wettest September on record was 2022 with 370 mm, while the driest was 2019 at 44 mm.
Relative humidity in Venice during September averages 80%. The most humid September was 2004 at 84%, and the least humid was 1996 at 74%.
September receives about 5.2 kWh/m²/day of solar energy in Venice. The sunniest September was 2019 at 5.9 kWh/m²/day, and the cloudiest was 1998 at 4.5.
Average wind speed in Venice during September is 3.2 m/s. The windiest September was 2004 at 5.4 m/s, while the calmest was 1987 at 2.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.2°C | 27.6°C | 27.7°C | 27.9°C | 28.3°C | +1.1°C |
| Avg High | 28.8°C | 29.3°C | 29.3°C | 29.6°C | 30.0°C | +1.2°C |
| Avg Low | 25.5°C | 26.0°C | 26.0°C | 26.2°C | 26.6°C | +1.1°C |
| Avg Rain | 160 mm | 156 mm | 190 mm | 168 mm | 207 mm | +47 mm |
September temperatures in Venice have risen by about 1.5°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 20.6°C (1983) to a record high of 32.4°C (2014).
Rainfall in September is a relatively wet time of year, averaging 174 mm, with a wettest year of 370 mm.
A quieter season to visit Venice
If your dates are flexible, the more temperate months of November and April tend to be the most comfortable for visiting Venice. That said, September — with days averaging 29.4°C and nights around 26°C (mean 27.7°C) and higher rainfall (174 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 29.7°C | 27.9°C | 26.2°C | 30.8°C | 24.4°C | 112 mm | 81% | 2.8 m/s | 5 |
| 2024 🔥 | 30.7°C | 29.1°C | 27.5°C | 31.7°C | 26.3°C | 182 mm | 80% | 3 m/s | 5.2 |
| 2023 | 30.8°C | 28.8°C | 26.8°C | 32.2°C | 24.8°C | 150 mm | 76% | 2.7 m/s | 5.5 |
| 2022 🌧️ | 29.7°C | 28.0°C | 26.4°C | 31.9°C | 21.6°C | 370 mm | 79% | 2.9 m/s | 4.7 |
| 2021 | 29.4°C | 27.9°C | 26.4°C | 31.0°C | 24.2°C | 167 mm | 78% | 2.5 m/s | 5 |
| 2020 | 29.7°C | 28.1°C | 26.4°C | 32.4°C | 20.8°C | 257 mm | 81% | 3.4 m/s | 5 |
| 2019 | 30.2°C | 28.1°C | 26.0°C | 31.6°C | 23.0°C | 44 mm | 78% | 4.2 m/s | 5.9 |
| 2018 | 30.0°C | 28.3°C | 26.7°C | 31.7°C | 25.4°C | 142 mm | 80% | 2.9 m/s | 5.7 |
| 2017 | 29.5°C | 27.8°C | 26.2°C | 31.0°C | 24.9°C | 262 mm | 80% | 3.4 m/s | 5.3 |
| 2016 | 29.6°C | 28.1°C | 26.6°C | 30.9°C | 25.2°C | 176 mm | 80% | 2.7 m/s | 5.4 |
| 2015 | 29.3°C | 28.0°C | 26.6°C | 30.8°C | 25.1°C | 218 mm | 81% | 2.5 m/s | 4.8 |
| 2014 | 29.3°C | 27.7°C | 26.1°C | 32.4°C | 24.8°C | 253 mm | 79% | 2.4 m/s | 4.7 |
| 2013 | 29.3°C | 27.6°C | 25.9°C | 30.8°C | 23.5°C | 168 mm | 80% | 3.1 m/s | 5.3 |
| 2012 | 28.9°C | 27.1°C | 25.4°C | 30.9°C | 23.1°C | 135 mm | 80% | 3.3 m/s | 5.1 |
| 2011 | 29.7°C | 28.0°C | 26.3°C | 31.0°C | 25.1°C | 167 mm | 78% | 2.8 m/s | 5.1 |
| 2010 | 30.3°C | 28.2°C | 26.1°C | 31.5°C | 24.3°C | 112 mm | 78% | 3.3 m/s | 5.7 |
| 2009 | 29.5°C | 28.1°C | 26.6°C | 30.5°C | 24.0°C | 163 mm | 79% | 2.5 m/s | 5.2 |
| 2008 | 29.4°C | 27.5°C | 25.5°C | 31.0°C | 22.5°C | 130 mm | 80% | 3.9 m/s | 5.3 |
| 2007 | 30.1°C | 28.2°C | 26.3°C | 32.0°C | 24.4°C | 146 mm | 77% | 3.4 m/s | 5.4 |
| 2006 | 29.3°C | 27.7°C | 26.1°C | 30.5°C | 24.1°C | 151 mm | 77% | 2.6 m/s | 5.4 |
| 2005 | 29.6°C | 27.6°C | 25.7°C | 31.4°C | 24.1°C | 92 mm | 80% | 3.6 m/s | 5.3 |
| 2004 | 29.1°C | 27.5°C | 26.0°C | 31.1°C | 23.4°C | 276 mm | 84% | 5.4 m/s | 4.8 |
| 2003 | 29.1°C | 27.4°C | 25.7°C | 30.3°C | 23.4°C | 202 mm | 82% | 3.3 m/s | 4.9 |
| 2002 | 29.6°C | 28.0°C | 26.4°C | 30.7°C | 25.3°C | 199 mm | 83% | 3.6 m/s | 4.9 |
| 2001 | 28.0°C | 26.6°C | 25.1°C | 30.5°C | 21.0°C | 327 mm | 82% | 3.1 m/s | 4.7 |
| 2000 | 29.7°C | 28.0°C | 26.3°C | 31.4°C | 23.6°C | 214 mm | 80% | 3.5 m/s | 5.1 |
| 1999 | 29.2°C | 27.6°C | 26.0°C | 31.6°C | 21.6°C | 210 mm | 80% | 3.9 m/s | 4.8 |
| 1998 | 29.2°C | 27.9°C | 26.6°C | 30.8°C | 24.8°C | 234 mm | 83% | 4.4 m/s | 4.5 |
| 1997 | 29.6°C | 27.7°C | 25.9°C | 31.6°C | 24.1°C | 160 mm | 76% | 3.2 m/s | 5.4 |
| 1996 | 30.3°C | 28.3°C | 26.3°C | 31.4°C | 24.0°C | 79 mm | 74% | 3.3 m/s | 5.5 |
| 1995 | 29.4°C | 27.8°C | 26.1°C | 30.4°C | 24.9°C | 143 mm | 81% | 2.8 m/s | 5.2 |
| 1994 | 28.2°C | 26.9°C | 25.6°C | 30.2°C | 23.6°C | 249 mm | 83% | 3.3 m/s | 4.7 |
| 1993 | 29.1°C | 27.5°C | 26.0°C | 30.7°C | 21.5°C | 118 mm | 80% | 3 m/s | 5.3 |
| 1992 | 28.8°C | 27.3°C | 25.7°C | 30.0°C | 23.8°C | 139 mm | 82% | 3.1 m/s | 5.2 |
| 1991 | 29.3°C | 27.5°C | 25.7°C | 30.7°C | 22.1°C | 122 mm | 80% | 3.2 m/s | 5.6 |
| 1990 | 29.5°C | 27.8°C | 26.1°C | 31.1°C | 22.7°C | 104 mm | 77% | 2.9 m/s | 5.3 |
| 1989 | 29.5°C | 27.8°C | 26.0°C | 31.1°C | 24.4°C | 157 mm | 80% | 3 m/s | 5.3 |
| 1988 | 29.3°C | 27.6°C | 25.9°C | 30.2°C | 23.4°C | 200 mm | 82% | 4 m/s | 5.1 |
| 1987 | 29.3°C | 27.7°C | 26.1°C | 30.7°C | 24.0°C | 143 mm | 77% | 2.1 m/s | 4.7 |
| 1986 | 29.3°C | 27.5°C | 25.7°C | 30.5°C | 24.6°C | 107 mm | 79% | 3.1 m/s | 5.5 |
| 1985 | 28.3°C | 26.6°C | 24.9°C | 29.5°C | 23.0°C | 118 mm | 82% | 4 m/s | 5.5 |
| 1984 ❄️ | 28.4°C | 26.6°C | 24.8°C | 30.2°C | 23.1°C | 156 mm | 80% | 4.1 m/s | 5.3 |
| 1983 | 28.2°C | 26.7°C | 25.2°C | 29.6°C | 20.6°C | 212 mm | 82% | 3.8 m/s | — |
| 1982 | 28.6°C | 27.1°C | 25.6°C | 30.3°C | 22.7°C | 233 mm | 79% | 3 m/s | — |
| 1981 | 28.6°C | 26.9°C | 25.1°C | 30.3°C | 20.7°C | 113 mm | 79% | 3.1 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 29.4°C with lows near 26°C (mean 27.7°C), based on 45 years of NASA POWER data.
September averages 174 mm of rainfall in Venice, a relatively wet time of year. The wettest on record was 370 mm in 2022.
The hottest September reached 32.4°C in 2014. The coldest dipped to 20.6°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.5°C. Daytime highs moved from 28.4°C to 30.1°C and overnight lows from 25.1°C to 26.7°C over the same span.
September is one of the warmer months of the year in Venice and a relatively wet time of year, so plan for around 29.4°C daytime highs and 26°C at night.
Not quite — September is the 9th coolest month in Venice, averaging 27.7°C.
For September in Venice, pack light layers you can adjust through the day, with typical highs of 29.4°C and lows of 26°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 80% — quite humid.
Average wind speed in September is 3.2 m/s. The windiest September on record averaged 5.4 m/s (2004).
The wettest September on record was 2022 with 370 mm. On average, September sees 174 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Venice behaves each September, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for September specifically, along with year-by-year records and how the month has changed over the decades.
