September is close to Alluri Sitharama Raju's year-round average, with average highs near 26.9°C and lows around 21.2°C (mean 24°C). It is a relatively wet time of year, averaging 225 mm of rainfall and 90% relative humidity across the period.
September is close to Alluri Sitharama Raju's year-round average. Across 45 years of records, the warmest Septembers in Alluri Sitharama Raju were 1987, 2009 and 2020 — when the month averaged 24.7°C — while the coldest was 1985 at 23.3°C. Typical September days reach 26.9°C with nights near 21.2°C. The long-term September temperature trend is broadly flat.
September is a relatively wet time of year in Alluri Sitharama Raju, averaging 225 mm of rainfall. The wettest September on record was 2005 with 548 mm, while the driest was 2002 at 68 mm.
Relative humidity in Alluri Sitharama Raju during September averages 90%. The most humid Septembers were 2007, 2016 and 2019, among others at 92%, and the least humid was 2002 at 84%.
September receives about 4.3 kWh/m²/day of solar energy in Alluri Sitharama Raju. The sunniest September was 1987 at 4.9 kWh/m²/day, and the cloudiest was 2005 at 3.7.
Average wind speed in Alluri Sitharama Raju during September is 1.8 m/s. The windiest September was 1999 at 2.4 m/s, while the calmest was 2017 at 1.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 23.8°C | 23.8°C | 24.1°C | 24.1°C | 24.5°C | +0.7°C |
| Avg High | 26.8°C | 26.6°C | 27.0°C | 26.9°C | 27.3°C | +0.5°C |
| Avg Low | 20.9°C | 21.1°C | 21.2°C | 21.3°C | 21.7°C | +0.8°C |
| Avg Rain | 188 mm | 195 mm | 244 mm | 250 mm | 256 mm | +68 mm |
September temperatures in Alluri Sitharama Raju have risen by about 0.7°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 17.7°C (1982) to a record high of 30.4°C (2002).
Rainfall in September is a relatively wet time of year, averaging 225 mm, with a wettest year of 548 mm.
A good time to visit Alluri Sitharama Raju
September is a good time to visit Alluri Sitharama Raju, with days averaging 26.9°C and nights around 21.2°C (mean 24°C, close to Alluri Sitharama Raju'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 | 27.4°C | 24.6°C | 21.8°C | 30.0°C | 20.7°C | 178 mm | 90% | 1.5 m/s | 4.1 |
| 2024 | 27.5°C | 24.6°C | 21.8°C | 29.7°C | 20.4°C | 276 mm | 91% | 2.1 m/s | 3.9 |
| 2023 | 27.1°C | 24.5°C | 21.8°C | 30.3°C | 19.9°C | 216 mm | 90% | 1.9 m/s | 3.9 |
| 2022 | 27.0°C | 24.2°C | 21.4°C | 28.5°C | 19.9°C | 264 mm | 91% | 1.9 m/s | 4.1 |
| 2021 | 26.9°C | 24.2°C | 21.6°C | 28.3°C | 20.3°C | 328 mm | 92% | 1.8 m/s | 4 |
| 2020 | 27.6°C | 24.7°C | 21.9°C | 29.0°C | 20.8°C | 274 mm | 90% | 1.5 m/s | 4.5 |
| 2019 | 26.5°C | 24.0°C | 21.5°C | 28.5°C | 19.8°C | 336 mm | 92% | 2.3 m/s | 3.8 |
| 2018 | 27.1°C | 23.9°C | 20.7°C | 29.2°C | 18.7°C | 171 mm | 88% | 1.7 m/s | 4.7 |
| 2017 | 27.4°C | 24.5°C | 21.7°C | 28.8°C | 21.0°C | 164 mm | 90% | 1.2 m/s | 4.6 |
| 2016 | 26.6°C | 24.0°C | 21.4°C | 28.7°C | 19.3°C | 315 mm | 92% | 2.1 m/s | 3.8 |
| 2015 | 26.9°C | 24.2°C | 21.5°C | 28.0°C | 20.0°C | 294 mm | 91% | 1.6 m/s | 4.2 |
| 2014 | 27.2°C | 24.2°C | 21.2°C | 29.0°C | 18.8°C | 248 mm | 88% | 2 m/s | 4.4 |
| 2013 | 27.2°C | 24.2°C | 21.1°C | 28.9°C | 19.0°C | 189 mm | 89% | 1.7 m/s | 4.5 |
| 2012 | 26.4°C | 23.8°C | 21.3°C | 27.9°C | 19.7°C | 374 mm | 91% | 2.1 m/s | 4.1 |
| 2011 | 27.1°C | 24.1°C | 21.1°C | 29.4°C | 18.1°C | 174 mm | 89% | 2.2 m/s | 4.4 |
| 2010 | 26.5°C | 23.9°C | 21.3°C | 28.5°C | 20.0°C | 233 mm | 91% | 1.8 m/s | 4.4 |
| 2009 | 27.7°C | 24.7°C | 21.6°C | 30.1°C | 19.7°C | 144 mm | 88% | 1.6 m/s | 4.5 |
| 2008 | 26.5°C | 23.7°C | 20.8°C | 28.6°C | 17.8°C | 205 mm | 90% | 1.8 m/s | 4.2 |
| 2007 | 26.4°C | 24.0°C | 21.6°C | 28.4°C | 19.9°C | 310 mm | 92% | 2.1 m/s | 3.8 |
| 2006 | 27.2°C | 24.1°C | 21.0°C | 29.6°C | 18.9°C | 337 mm | 89% | 1.7 m/s | 4.7 |
| 2005 🌧️ | 26.5°C | 23.9°C | 21.3°C | 29.0°C | 18.9°C | 548 mm | 91% | 2.3 m/s | 3.7 |
| 2004 | 27.1°C | 24.3°C | 21.4°C | 29.5°C | 20.3°C | 238 mm | 89% | 1.3 m/s | 4.8 |
| 2003 | 26.5°C | 23.9°C | 21.3°C | 28.3°C | 18.8°C | 187 mm | 91% | 2.2 m/s | 4.5 |
| 2002 | 27.8°C | 24.2°C | 20.6°C | 30.4°C | 19.3°C | 68 mm | 84% | 2.2 m/s | 4.8 |
| 2001 | 27.3°C | 24.2°C | 21.2°C | 29.1°C | 19.7°C | 225 mm | 87% | 1.4 m/s | 4.6 |
| 2000 | 27.0°C | 24.1°C | 21.1°C | 28.7°C | 20.1°C | 182 mm | 89% | 1.7 m/s | 4.7 |
| 1999 | 26.3°C | 23.7°C | 21.1°C | 27.7°C | 20.0°C | 136 mm | 91% | 2.4 m/s | 4.2 |
| 1998 | 26.6°C | 24.2°C | 21.9°C | 28.3°C | 19.7°C | 312 mm | 92% | 1.8 m/s | 4.3 |
| 1997 | 26.9°C | 24.0°C | 21.1°C | 29.1°C | 20.3°C | 214 mm | 90% | 1.8 m/s | 4.4 |
| 1996 | 27.3°C | 24.2°C | 21.2°C | 29.4°C | 19.5°C | 198 mm | 89% | 1.3 m/s | 4.5 |
| 1995 | 26.6°C | 23.9°C | 21.2°C | 28.4°C | 19.4°C | 224 mm | 91% | 2.1 m/s | 4 |
| 1994 | 26.5°C | 23.6°C | 20.7°C | 28.4°C | 18.9°C | 123 mm | 89% | 2.1 m/s | 4.4 |
| 1993 | 26.1°C | 23.5°C | 20.8°C | 27.9°C | 19.7°C | 268 mm | 91% | 1.9 m/s | 4 |
| 1992 | 26.3°C | 23.4°C | 20.5°C | 28.5°C | 18.2°C | 134 mm | 89% | 1.9 m/s | 4.4 |
| 1991 | 27.3°C | 24.2°C | 21.2°C | 28.8°C | 18.3°C | 196 mm | 88% | 1.9 m/s | 4.3 |
| 1990 | 26.5°C | 23.7°C | 21.0°C | 27.8°C | 19.9°C | 149 mm | 91% | 1.9 m/s | 4.1 |
| 1989 | 26.6°C | 23.8°C | 21.0°C | 28.6°C | 18.7°C | 232 mm | 91% | 1.6 m/s | 4.2 |
| 1988 | 26.5°C | 24.0°C | 21.5°C | 28.0°C | 20.4°C | 271 mm | 92% | 1.8 m/s | 4 |
| 1987 🔥 | 28.0°C | 24.7°C | 21.4°C | 30.2°C | 20.2°C | 104 mm | 87% | 2 m/s | 4.9 |
| 1986 | 27.0°C | 23.8°C | 20.7°C | 29.4°C | 19.1°C | 157 mm | 87% | 1.5 m/s | 4.8 |
| 1985 ❄️ | 26.1°C | 23.3°C | 20.5°C | 28.2°C | 18.5°C | 116 mm | 90% | 2 m/s | 4.5 |
| 1984 | 27.2°C | 23.7°C | 20.1°C | 29.2°C | 18.8°C | 119 mm | 86% | 1.7 m/s | 4.6 |
| 1983 | 26.3°C | 23.8°C | 21.3°C | 28.0°C | 20.1°C | 197 mm | 92% | 2.1 m/s | — |
| 1982 | 26.9°C | 23.7°C | 20.6°C | 28.4°C | 17.7°C | 216 mm | 89% | 1.7 m/s | — |
| 1981 | 26.6°C | 23.8°C | 21.0°C | 28.5°C | 19.5°C | 284 mm | 91% | 1.8 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 26.9°C with lows near 21.2°C (mean 24°C), based on 45 years of NASA POWER data.
September averages 225 mm of rainfall in Alluri Sitharama Raju, a relatively wet time of year. The wettest on record was 548 mm in 2005.
The hottest September reached 30.4°C in 2002. The coldest dipped to 17.7°C in 1982.
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 26.6°C to 27.2°C and overnight lows from 20.7°C to 21.7°C over the same span.
September is close to Alluri Sitharama Raju's year-round average and a relatively wet time of year, so plan for around 26.9°C daytime highs and 21.2°C at night.
Not quite — September is the 6th coolest month in Alluri Sitharama Raju, averaging 24°C.
For September in Alluri Sitharama Raju, pack light layers you can adjust through the day, with typical highs of 26.9°C and lows of 21.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 90% — quite humid.
Average wind speed in September is 1.8 m/s. The windiest September on record averaged 2.4 m/s (1999).
The wettest September on record was 2005 with 548 mm. On average, September sees 225 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 Alluri Sitharama Raju 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.
