September is close to NTR's year-round average, with average highs near 33.6°C and lows around 22.9°C (mean 28.3°C). It is a relatively wet time of year, averaging 167 mm of rainfall and 83% relative humidity across the period.
September is close to NTR's year-round average. Across 45 years of records, the warmest September in NTR was 2002 — when the month averaged 30.3°C — while the coldest was 2008 at 26.7°C. Typical September days reach 33.6°C with nights near 22.9°C. The long-term trend is cooling, about 0.2°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.5°C | 28.3°C | 28.5°C | 28.0°C | 27.9°C | -0.6°C |
| Avg High | 34.1°C | 33.8°C | 33.9°C | 33.2°C | 32.7°C | -1.4°C |
| Avg Low | 22.9°C | 22.8°C | 23.1°C | 22.7°C | 23.0°C | +0.1°C |
| Avg Rain | 143 mm | 176 mm | 168 mm | 157 mm | 202 mm | +60 mm |
September temperatures in NTR have fallen by about 0.5°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 19.8°C (1994) to a record high of 37.6°C (2002).
Rainfall in September is a relatively wet time of year, averaging 167 mm, with a wettest year of 371 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.3°C per decade while lows rose 0°C per decade, narrowing the gap between day and night.
A good time to visit NTR
September is a good time to visit NTR, with days averaging 33.6°C and nights around 22.9°C (mean 28.3°C, close to NTR's yearly average) and higher rainfall. December and January are marginally more temperate, but September still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 32.5°C | 23.5°C | 28.0°C | 158 mm | 86% | 1.9 m/s | 4.5 |
| 2024 | 32.5°C | 23.3°C | 27.9°C | 198 mm | 87% | 2.3 m/s | 4.3 |
| 2023 | 33.4°C | 22.7°C | 28.0°C | 225 mm | 87% | 1.8 m/s | 4.4 |
| 2022 | 32.4°C | 22.6°C | 27.5°C | 146 mm | 85% | 1.8 m/s | 4.4 |
| 2021 | 32.9°C | 23.2°C | 28.1°C | 219 mm | 86% | 1.8 m/s | 4.5 |
| 2020 | 32.3°C | 22.8°C | 27.6°C | 267 mm | 88% | 1.8 m/s | 4.5 |
| 2019 | 34.0°C | 23.4°C | 28.7°C | 206 mm | 86% | 2.2 m/s | 4.2 |
| 2018 | 33.4°C | 22.7°C | 28.0°C | 81 mm | 83% | 1.4 m/s | 5.2 |
| 2017 | 31.8°C | 22.8°C | 27.3°C | 122 mm | 87% | 1.5 m/s | 4.8 |
| 2016 | 32.2°C | 22.0°C | 27.1°C | 200 mm | 86% | 2.1 m/s | 4.1 |
| 2015 | 34.0°C | 22.2°C | 28.1°C | 140 mm | 83% | 1.6 m/s | 4.8 |
| 2014 | 34.1°C | 22.8°C | 28.5°C | 118 mm | 83% | 2.2 m/s | 4.7 |
| 2013 | 32.4°C | 22.3°C | 27.4°C | 109 mm | 85% | 1.8 m/s | 5.1 |
| 2012 | 32.5°C | 23.4°C | 27.9°C | 255 mm | 85% | 1.9 m/s | 4.7 |
| 2011 | 35.5°C | 22.3°C | 28.9°C | 29 mm | 80% | 2 m/s | 5.3 |
| 2010 | 32.4°C | 23.5°C | 27.9°C | 313 mm | 88% | 1.8 m/s | 4.6 |
| 2009 | 33.9°C | 23.9°C | 28.9°C | 152 mm | 84% | 1.9 m/s | 5 |
| 2008 ❄️ | 32.3°C | 21.1°C | 26.7°C | 164 mm | 85% | 1.9 m/s | 4.9 |
| 2007 | 32.2°C | 23.0°C | 27.6°C | 211 mm | 89% | 2.2 m/s | 4.5 |
| 2006 | 33.3°C | 23.1°C | 28.2°C | 168 mm | 84% | 2 m/s | 5 |
| 2005 | 33.0°C | 22.1°C | 27.6°C | 358 mm | 87% | 2.2 m/s | 4.4 |
| 2004 | 35.2°C | 24.0°C | 29.6°C | 154 mm | 81% | 1.5 m/s | 4.9 |
| 2003 | 34.7°C | 23.6°C | 29.2°C | 149 mm | 83% | 2.1 m/s | 5.1 |
| 2002 🔥 | 37.6°C | 23.1°C | 30.3°C | 31 mm | 74% | 1.9 m/s | 5.5 |
| 2001 | 35.2°C | 23.8°C | 29.5°C | 150 mm | 81% | 1.4 m/s | 4.8 |
| 2000 | 31.9°C | 23.4°C | 27.6°C | 146 mm | 86% | 1.6 m/s | 5.3 |
| 1999 | 36.0°C | 23.7°C | 29.9°C | 90 mm | 77% | 2.4 m/s | 4.9 |
| 1998 | 32.1°C | 23.9°C | 28.0°C | 233 mm | 86% | 1.9 m/s | 4.8 |
| 1997 🌧️ | 35.2°C | 23.3°C | 29.2°C | 371 mm | 86% | 1.8 m/s | 4.8 |
| 1996 | 32.0°C | 22.7°C | 27.4°C | 116 mm | 85% | 1.7 m/s | 4.7 |
| 1995 | 33.6°C | 22.9°C | 28.2°C | 185 mm | 84% | 2.1 m/s | 4.5 |
| 1994 | 34.3°C | 19.8°C | 27.0°C | 67 mm | 78% | 2 m/s | 5.2 |
| 1993 | 34.1°C | 23.5°C | 28.8°C | 123 mm | 80% | 2.1 m/s | 4.7 |
| 1992 | 32.3°C | 22.3°C | 27.3°C | 185 mm | 83% | 1.8 m/s | 4.8 |
| 1991 | 33.9°C | 22.8°C | 28.3°C | 248 mm | 80% | 1.7 m/s | 4.5 |
| 1990 | 34.3°C | 23.3°C | 28.8°C | 146 mm | 80% | 1.8 m/s | 4.5 |
| 1989 | 32.0°C | 22.6°C | 27.3°C | 153 mm | 87% | 1.9 m/s | 4.4 |
| 1988 | 31.6°C | 22.9°C | 27.2°C | 204 mm | 89% | 1.9 m/s | 4.3 |
| 1987 | 35.9°C | 24.0°C | 30.0°C | 83 mm | 77% | 1.8 m/s | 5.4 |
| 1986 | 37.4°C | 23.1°C | 30.2°C | 46 mm | 73% | 1.6 m/s | 5.4 |
| 1985 | 35.2°C | 22.5°C | 28.8°C | 46 mm | 77% | 1.9 m/s | 5.2 |
| 1984 | 37.0°C | 23.2°C | 30.1°C | 91 mm | 72% | 1.9 m/s | 5.1 |
| 1983 | 31.9°C | 23.5°C | 27.7°C | 314 mm | 88% | 2.3 m/s | — |
| 1982 | 33.3°C | 21.5°C | 27.4°C | 163 mm | 81% | 1.9 m/s | — |
| 1981 | 32.5°C | 23.2°C | 27.8°C | 185 mm | 87% | 2.1 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 33.6°C with lows near 22.9°C (mean 28.3°C), based on 45 years of NASA POWER data.
September averages 167 mm of rainfall in NTR, a relatively wet time of year. The wettest on record was 371 mm in 1997.
The hottest September reached 37.6°C in 2002. The coldest dipped to 19.8°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have fallen by about 0.5°C. Daytime highs moved from 34°C to 32.7°C and overnight lows from 22.8°C to 23.1°C over the same span.
September is close to NTR's year-round average and a relatively wet time of year, so plan for around 33.6°C daytime highs and 22.9°C at night.
Not quite — September is the 6th coolest month in NTR, averaging 28.3°C.
For September in NTR, pack light, breathable clothing and sun protection, with typical highs of 33.6°C and lows of 22.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 83% — quite humid.
Average wind speed in September is 1.9 m/s. The windiest September on record averaged 2.4 m/s (1999).
The wettest September on record was 1997 with 371 mm. On average, September sees 167 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 NTR 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.
