September is one of the warmer months of the year in Nellore, with average highs near 32.4°C and lows around 26.1°C (mean 29.3°C). It is a relatively wet time of year, averaging 104 mm of rainfall and 73% relative humidity across the period.
September is one of the warmer months of the year in Nellore. Across 45 years of records, the warmest September in Nellore was 1987 — when the month averaged 30.5°C — while the coldest was 1983 at 27.7°C. Typical September days reach 32.4°C with nights near 26.1°C. The long-term September temperature trend is broadly flat.
September is a relatively wet time of year in Nellore, averaging 104 mm of rainfall. The wettest September on record was 1981 with 200 mm, while the driest was 1994 at 16 mm.
Relative humidity in Nellore during September averages 73%. The most humid Septembers were 1983 and 2007 at 81%, and the least humid was 1986 at 63%.
September receives about 5.1 kWh/m²/day of solar energy in Nellore. The sunniest September was 2002 at 5.8 kWh/m²/day, and the cloudiest was 2020 at 4.5.
Average wind speed in Nellore during September is 3.2 m/s. The windiest September was 1999 at 3.9 m/s, while the calmest was 2017 at 2.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 29.2°C | 29.4°C | 29.2°C | 29.2°C | 29.4°C | +0.2°C |
| Avg High | 32.3°C | 32.6°C | 32.2°C | 32.2°C | 32.5°C | +0.2°C |
| Avg Low | 26.1°C | 26.2°C | 26.2°C | 26.1°C | 26.2°C | +0.1°C |
| Avg Rain | 106 mm | 89 mm | 108 mm | 107 mm | 114 mm | +8 mm |
September temperatures in Nellore have risen by about 0.7°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 23.4°C (1983) to a record high of 36.8°C (1997).
Rainfall in September is a relatively wet time of year, averaging 104 mm, with a wettest year of 200 mm.
A good time to visit Nellore
September is a good time to visit Nellore, with days averaging 32.4°C and nights around 26.1°C (mean 29.3°C, close to Nellore'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 | 32.5°C | 29.3°C | 26.1°C | 35.3°C | 24.4°C | 136 mm | 74% | 3.4 m/s | 4.9 |
| 2024 | 33.4°C | 29.9°C | 26.5°C | 35.7°C | 25.6°C | 95 mm | 71% | 3.7 m/s | 4.8 |
| 2023 | 33.0°C | 29.8°C | 26.5°C | 35.9°C | 24.9°C | 118 mm | 73% | 3.4 m/s | 5 |
| 2022 | 32.4°C | 29.3°C | 26.2°C | 34.9°C | 24.9°C | 83 mm | 74% | 2.8 m/s | 5.1 |
| 2021 | 33.2°C | 29.8°C | 26.3°C | 35.5°C | 25.2°C | 87 mm | 70% | 3.5 m/s | 4.8 |
| 2020 | 30.7°C | 28.2°C | 25.6°C | 32.7°C | 24.1°C | 165 mm | 81% | 3.3 m/s | 4.5 |
| 2019 | 31.6°C | 28.8°C | 25.9°C | 35.1°C | 24.3°C | 170 mm | 78% | 3.3 m/s | 4.6 |
| 2018 | 33.7°C | 30.2°C | 26.8°C | 36.8°C | 25.3°C | 79 mm | 67% | 3 m/s | 5.4 |
| 2017 | 30.6°C | 28.2°C | 25.8°C | 32.6°C | 23.6°C | 185 mm | 81% | 2.4 m/s | 5 |
| 2016 | 33.2°C | 29.6°C | 26.1°C | 35.0°C | 25.2°C | 55 mm | 68% | 3.7 m/s | 4.6 |
| 2015 | 31.8°C | 28.9°C | 26.0°C | 34.2°C | 24.8°C | 157 mm | 76% | 2.9 m/s | 5.2 |
| 2014 | 32.5°C | 29.3°C | 26.0°C | 35.4°C | 25.0°C | 77 mm | 72% | 3.3 m/s | 5.2 |
| 2013 | 31.2°C | 28.4°C | 25.5°C | 33.0°C | 24.2°C | 131 mm | 78% | 2.8 m/s | 5.3 |
| 2012 | 33.5°C | 30.0°C | 26.5°C | 36.0°C | 25.1°C | 70 mm | 67% | 3.1 m/s | 5.1 |
| 2011 | 33.4°C | 29.9°C | 26.3°C | 35.5°C | 24.7°C | 63 mm | 68% | 3.4 m/s | 5.7 |
| 2010 | 30.9°C | 28.3°C | 25.6°C | 33.1°C | 24.9°C | 80 mm | 80% | 3 m/s | 4.9 |
| 2009 | 31.9°C | 28.9°C | 26.0°C | 33.8°C | 24.5°C | 111 mm | 77% | 3.3 m/s | 5.3 |
| 2008 | 32.3°C | 29.2°C | 26.0°C | 34.8°C | 24.6°C | 68 mm | 72% | 3 m/s | 5.5 |
| 2007 | 30.8°C | 28.1°C | 25.4°C | 32.8°C | 23.9°C | 83 mm | 81% | 3.4 m/s | 5 |
| 2006 | 32.1°C | 29.1°C | 26.1°C | 36.0°C | 24.3°C | 128 mm | 73% | 3.2 m/s | 5.2 |
| 2005 | 32.9°C | 29.8°C | 26.6°C | 35.0°C | 25.5°C | 85 mm | 71% | 3.3 m/s | 5 |
| 2004 | 31.8°C | 29.0°C | 26.2°C | 35.3°C | 24.7°C | 179 mm | 75% | 2.6 m/s | 5 |
| 2003 | 32.4°C | 29.4°C | 26.3°C | 35.2°C | 25.1°C | 100 mm | 72% | 3.3 m/s | 5.4 |
| 2002 | 33.9°C | 30.4°C | 26.9°C | 36.2°C | 25.8°C | 76 mm | 66% | 3.1 m/s | 5.8 |
| 2001 | 32.3°C | 29.4°C | 26.6°C | 36.4°C | 24.9°C | 144 mm | 72% | 2.9 m/s | 5.1 |
| 2000 | 31.2°C | 28.6°C | 25.9°C | 34.7°C | 25.0°C | 110 mm | 78% | 2.7 m/s | 5.6 |
| 1999 | 33.7°C | 30.0°C | 26.3°C | 36.0°C | 25.2°C | 65 mm | 67% | 3.9 m/s | 5.3 |
| 1998 | 31.7°C | 29.0°C | 26.2°C | 34.4°C | 25.1°C | 150 mm | 76% | 3.4 m/s | 5 |
| 1997 | 32.2°C | 29.2°C | 26.3°C | 36.8°C | 24.9°C | 170 mm | 74% | 3.3 m/s | 4.8 |
| 1996 | 31.5°C | 28.6°C | 25.7°C | 33.7°C | 24.6°C | 108 mm | 76% | 2.9 m/s | 4.7 |
| 1995 | 32.1°C | 28.9°C | 25.8°C | 34.7°C | 24.9°C | 111 mm | 74% | 3.4 m/s | 5 |
| 1994 | 33.9°C | 30.1°C | 26.3°C | 35.8°C | 24.3°C | 16 mm | 64% | 3.6 m/s | 5.2 |
| 1993 | 31.8°C | 28.7°C | 25.6°C | 34.5°C | 24.1°C | 53 mm | 74% | 3.3 m/s | 5.1 |
| 1992 | 32.5°C | 29.3°C | 26.2°C | 34.8°C | 25.4°C | 42 mm | 69% | 3.2 m/s | 5 |
| 1991 | 32.8°C | 29.7°C | 26.6°C | 35.5°C | 24.5°C | 107 mm | 69% | 2.8 m/s | 5 |
| 1990 | 33.5°C | 30.0°C | 26.6°C | 36.6°C | 24.3°C | 61 mm | 66% | 3.3 m/s | 4.8 |
| 1989 | 32.4°C | 29.3°C | 26.2°C | 35.5°C | 24.8°C | 98 mm | 70% | 3.2 m/s | 4.8 |
| 1988 | 30.9°C | 28.2°C | 25.5°C | 34.1°C | 24.3°C | 113 mm | 79% | 3.1 m/s | 4.9 |
| 1987 🔥 | 33.9°C | 30.5°C | 27.0°C | 36.3°C | 25.9°C | 20 mm | 66% | 3.3 m/s | 5.2 |
| 1986 | 34.1°C | 30.4°C | 26.7°C | 36.4°C | 24.5°C | 53 mm | 63% | 3.4 m/s | 5.4 |
| 1985 | 32.5°C | 29.2°C | 25.8°C | 36.1°C | 24.6°C | 60 mm | 69% | 3.4 m/s | 5.5 |
| 1984 | 32.8°C | 29.5°C | 26.3°C | 36.2°C | 24.8°C | 131 mm | 67% | 3.2 m/s | 5.1 |
| 1983 ❄️ | 30.4°C | 27.7°C | 25.1°C | 32.3°C | 23.4°C | 186 mm | 81% | 3.6 m/s | — |
| 1982 | 33.5°C | 29.9°C | 26.4°C | 36.6°C | 24.5°C | 89 mm | 65% | 3.5 m/s | — |
| 1981 🌧️ | 30.6°C | 28.1°C | 25.6°C | 33.4°C | 24.8°C | 200 mm | 80% | 3 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 32.4°C with lows near 26.1°C (mean 29.3°C), based on 45 years of NASA POWER data.
September averages 104 mm of rainfall in Nellore, a relatively wet time of year. The wettest on record was 200 mm in 1981.
The hottest September reached 36.8°C in 1997. The coldest dipped to 23.4°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 32°C to 32.9°C and overnight lows from 25.8°C to 26.3°C over the same span.
September is one of the warmer months of the year in Nellore and a relatively wet time of year, so plan for around 32.4°C daytime highs and 26.1°C at night.
Not quite — September is the 7th coolest month in Nellore, averaging 29.3°C.
For September in Nellore, pack light, breathable clothing and sun protection, with typical highs of 32.4°C and lows of 26.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 73% — moderately humid.
Average wind speed in September is 3.2 m/s. The windiest September on record averaged 3.9 m/s (1999).
The wettest September on record was 1981 with 200 mm. On average, September sees 104 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 Nellore 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.
