September is one of the warmer months of the year in Cuddalore, with average highs near 31°C and lows around 26.5°C (mean 28.8°C). It is a relatively wet time of year, averaging 119 mm of rainfall and 77% relative humidity across the period.
September is one of the warmer months of the year in Cuddalore. Across 45 years of records, the warmest Septembers in Cuddalore were 2002 and 2024 — when the month averaged 29.6°C — while the coldest was 1983 at 27.6°C. Typical September days reach 31°C with nights near 26.5°C. The long-term September temperature trend is broadly flat.
September is a relatively wet time of year in Cuddalore, averaging 119 mm of rainfall. The wettest September on record was 2004 with 213 mm, while the driest was 1994 at 37 mm.
Relative humidity in Cuddalore during September averages 77%. The most humid September was 1996 at 82%, and the least humid was 1982 at 72%.
September receives about 5.4 kWh/m²/day of solar energy in Cuddalore. The sunniest September was 2002 at 6.1 kWh/m²/day, and the cloudiest was 2020 at 4.7.
Average wind speed in Cuddalore during September is 3.4 m/s. The windiest September was 1983 at 4.2 m/s, while the calmest was 2010 at 2.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.4°C | 28.8°C | 28.9°C | 28.7°C | 28.8°C | +0.4°C |
| Avg High | 30.6°C | 31.1°C | 31.3°C | 30.9°C | 31.0°C | +0.4°C |
| Avg Low | 26.2°C | 26.5°C | 26.6°C | 26.6°C | 26.7°C | +0.5°C |
| Avg Rain | 124 mm | 104 mm | 109 mm | 127 mm | 141 mm | +17 mm |
September temperatures in Cuddalore have risen by about 0.7°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 24°C (1983) to a record high of 34.5°C (2002).
Rainfall in September is a relatively wet time of year, averaging 119 mm, with a wettest year of 213 mm.
A good time to visit Cuddalore
September is a good time to visit Cuddalore, with days averaging 31°C and nights around 26.5°C (mean 28.8°C, close to Cuddalore's yearly average) and higher rainfall. January and February are marginally more temperate, but September still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 31.3°C | 29.1°C | 26.9°C | 32.7°C | 26.0°C | 149 mm | 78% | 3.1 m/s | 5.1 |
| 2024 | 32.1°C | 29.6°C | 27.1°C | 34.2°C | 26.3°C | 62 mm | 76% | 3 m/s | 5.6 |
| 2023 | 31.1°C | 28.8°C | 26.5°C | 32.6°C | 26.0°C | 140 mm | 79% | 3.8 m/s | 5.7 |
| 2022 | 30.7°C | 28.6°C | 26.6°C | 32.4°C | 25.4°C | 116 mm | 78% | 3 m/s | 5.4 |
| 2021 | 30.4°C | 28.4°C | 26.5°C | 31.9°C | 25.3°C | 171 mm | 81% | 3.4 m/s | 5.3 |
| 2020 | 30.4°C | 28.4°C | 26.3°C | 32.1°C | 25.3°C | 206 mm | 80% | 3.7 m/s | 4.7 |
| 2019 | 30.3°C | 28.4°C | 26.5°C | 32.8°C | 26.0°C | 187 mm | 81% | 3.7 m/s | 5.1 |
| 2018 | 31.3°C | 29.1°C | 26.8°C | 34.2°C | 25.9°C | 93 mm | 76% | 3.1 m/s | 5.6 |
| 2017 | 30.3°C | 28.5°C | 26.7°C | 32.3°C | 25.5°C | 160 mm | 81% | 3.1 m/s | 5.2 |
| 2016 | 31.7°C | 29.2°C | 26.8°C | 33.5°C | 26.0°C | 92 mm | 74% | 3 m/s | 5.2 |
| 2015 | 31.4°C | 29.1°C | 26.9°C | 33.6°C | 26.0°C | 98 mm | 77% | 3.3 m/s | 5.6 |
| 2014 | 30.9°C | 28.7°C | 26.5°C | 32.6°C | 25.2°C | 118 mm | 78% | 3 m/s | 5.6 |
| 2013 | 30.3°C | 28.2°C | 26.1°C | 31.9°C | 25.5°C | 155 mm | 80% | 3.4 m/s | 5.6 |
| 2012 | 31.1°C | 28.8°C | 26.5°C | 33.4°C | 25.4°C | 99 mm | 76% | 3.1 m/s | 5.6 |
| 2011 | 31.2°C | 28.8°C | 26.5°C | 32.5°C | 25.5°C | 128 mm | 77% | 3.4 m/s | 5.9 |
| 2010 | 30.5°C | 28.5°C | 26.4°C | 32.2°C | 25.5°C | 136 mm | 78% | 2.9 m/s | 5.1 |
| 2009 | 32.0°C | 29.4°C | 26.9°C | 34.1°C | 25.8°C | 115 mm | 76% | 3.5 m/s | 5.7 |
| 2008 | 31.4°C | 28.9°C | 26.4°C | 33.2°C | 25.4°C | 62 mm | 75% | 3.4 m/s | 5.7 |
| 2007 | 30.5°C | 28.3°C | 26.2°C | 32.0°C | 25.0°C | 114 mm | 80% | 3.4 m/s | 5.6 |
| 2006 | 31.2°C | 28.8°C | 26.4°C | 32.8°C | 25.4°C | 83 mm | 77% | 4.1 m/s | 5.3 |
| 2005 | 31.4°C | 29.0°C | 26.7°C | 33.7°C | 26.0°C | 120 mm | 77% | 3.4 m/s | 5.5 |
| 2004 🌧️ | 30.1°C | 28.2°C | 26.3°C | 32.6°C | 25.3°C | 213 mm | 80% | 3.2 m/s | 4.9 |
| 2003 | 32.1°C | 29.5°C | 26.9°C | 34.1°C | 26.1°C | 65 mm | 74% | 3.4 m/s | 5.9 |
| 2002 🔥 | 32.2°C | 29.6°C | 27.0°C | 34.5°C | 26.0°C | 79 mm | 73% | 3.6 m/s | 6.1 |
| 2001 | 31.0°C | 28.9°C | 26.8°C | 33.1°C | 26.0°C | 132 mm | 77% | 3.3 m/s | 5.6 |
| 2000 | 31.0°C | 28.8°C | 26.6°C | 33.5°C | 25.9°C | 108 mm | 78% | 3.3 m/s | 5.6 |
| 1999 | 31.6°C | 29.1°C | 26.6°C | 32.9°C | 25.5°C | 82 mm | 75% | 3.5 m/s | 5.8 |
| 1998 | 31.0°C | 28.7°C | 26.3°C | 32.6°C | 25.6°C | 121 mm | 79% | 3.6 m/s | 5.4 |
| 1997 | 31.0°C | 28.8°C | 26.6°C | 33.2°C | 25.9°C | 92 mm | 77% | 3.6 m/s | 5.3 |
| 1996 | 29.6°C | 27.7°C | 25.8°C | 31.8°C | 24.9°C | 166 mm | 82% | 3.3 m/s | 4.8 |
| 1995 | 31.2°C | 28.9°C | 26.6°C | 33.2°C | 25.7°C | 113 mm | 77% | 3.3 m/s | 5.2 |
| 1994 | 31.8°C | 29.1°C | 26.4°C | 34.2°C | 24.4°C | 37 mm | 73% | 3.7 m/s | 5.7 |
| 1993 | 30.8°C | 28.6°C | 26.4°C | 32.7°C | 25.4°C | 74 mm | 76% | 3.4 m/s | 5.3 |
| 1992 | 31.4°C | 28.9°C | 26.5°C | 33.6°C | 25.6°C | 119 mm | 74% | 3.1 m/s | 5.1 |
| 1991 | 31.7°C | 29.3°C | 27.0°C | 33.0°C | 26.1°C | 84 mm | 74% | 3.2 m/s | 5.5 |
| 1990 | 30.7°C | 28.6°C | 26.5°C | 33.9°C | 25.7°C | 155 mm | 76% | 3.2 m/s | 5.2 |
| 1989 | 31.0°C | 28.7°C | 26.4°C | 34.4°C | 25.3°C | 123 mm | 75% | 3 m/s | 5.1 |
| 1988 | 30.5°C | 28.4°C | 26.2°C | 32.6°C | 25.1°C | 114 mm | 79% | 3.7 m/s | 5.3 |
| 1987 | 31.5°C | 29.2°C | 26.8°C | 33.9°C | 25.3°C | 61 mm | 75% | 3.3 m/s | 5.4 |
| 1986 | 31.2°C | 28.8°C | 26.4°C | 33.8°C | 25.7°C | 83 mm | 75% | 3.1 m/s | 5.8 |
| 1985 | 30.2°C | 28.1°C | 25.9°C | 32.9°C | 24.8°C | 146 mm | 77% | 3.1 m/s | 5.5 |
| 1984 | 30.7°C | 28.4°C | 26.1°C | 33.6°C | 25.1°C | 166 mm | 75% | 3.4 m/s | 5.6 |
| 1983 ❄️ | 29.9°C | 27.6°C | 25.4°C | 31.6°C | 24.0°C | 152 mm | 80% | 4.2 m/s | — |
| 1982 | 31.3°C | 28.9°C | 26.4°C | 33.6°C | 25.5°C | 92 mm | 72% | 3.4 m/s | — |
| 1981 | 29.5°C | 27.8°C | 26.1°C | 31.5°C | 25.1°C | 174 mm | 82% | 3.4 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 31°C with lows near 26.5°C (mean 28.8°C), based on 45 years of NASA POWER data.
September averages 119 mm of rainfall in Cuddalore, a relatively wet time of year. The wettest on record was 213 mm in 2004.
The hottest September reached 34.5°C in 2002. The coldest dipped to 24°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 0.7°C. Daytime highs moved from 30.3°C to 31.1°C and overnight lows from 26°C to 26.7°C over the same span.
September is one of the warmer months of the year in Cuddalore and a relatively wet time of year, so plan for around 31°C daytime highs and 26.5°C at night.
Not quite — September is the 7th coolest month in Cuddalore, averaging 28.8°C.
For September in Cuddalore, pack light, breathable clothing and sun protection, with typical highs of 31°C and lows of 26.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 77% — quite humid.
Average wind speed in September is 3.4 m/s. The windiest September on record averaged 4.2 m/s (1983).
The wettest September on record was 2004 with 213 mm. On average, September sees 119 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 Cuddalore 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.
