September is one of the cooler months of the year in Ballari, with average highs near 31°C and lows around 21.6°C (mean 26.3°C). It is a relatively wet time of year, averaging 113 mm of rainfall and 75% relative humidity across the period.
September is one of the cooler months of the year in Ballari. Across 45 years of records, the warmest September in Ballari was 2003 — when the month averaged 28.1°C — while the coldest was 1988 at 24.8°C. Typical September days reach 31°C with nights near 21.6°C. The long-term September temperature trend is broadly flat.
September is a relatively wet time of year in Ballari, averaging 113 mm of rainfall. The wettest September on record was 2020 with 242 mm, while the driest was 2011 at 18 mm.
Relative humidity in Ballari during September averages 75%. The most humid September was 1988 at 84%, and the least humid was 1990 at 64%.
September receives about 5.1 kWh/m²/day of solar energy in Ballari. The sunniest Septembers were 1993 and 2002 at 5.8 kWh/m²/day, and the cloudiest was 2016 at 4.2.
Average wind speed in Ballari during September is 3.2 m/s. The windiest Septembers were 1983 and 2011 at 4.1 m/s, while the calmest were 2001 and 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 | 26.2°C | 26.4°C | 26.4°C | 26.4°C | 26.1°C | -0.1°C |
| Avg High | 31.1°C | 31.3°C | 31.1°C | 31.2°C | 30.3°C | -0.8°C |
| Avg Low | 21.4°C | 21.5°C | 21.8°C | 21.7°C | 21.8°C | +0.4°C |
| Avg Rain | 129 mm | 97 mm | 123 mm | 104 mm | 117 mm | -12 mm |
September temperatures in Ballari have stayed relatively stable across the record.
September has ranged from a record low of 18°C (1982) to a record high of 37.3°C (1985).
Rainfall in September is a relatively wet time of year, averaging 113 mm, with a wettest year of 242 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.2°C per decade while lows rose 0.1°C per decade, narrowing the gap between day and night.
A good time to visit Ballari
September is a good time to visit Ballari, with days averaging 31°C and nights around 21.6°C (mean 26.3°C, close to Ballari's yearly average) and higher rainfall. December and January 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 | 29.5°C | 25.5°C | 21.5°C | 32.5°C | 20.3°C | 106 mm | 82% | 3.3 m/s | 4.3 |
| 2024 | 30.7°C | 26.4°C | 22.1°C | 32.7°C | 21.0°C | 74 mm | 79% | 3.6 m/s | 4.9 |
| 2023 | 32.1°C | 27.2°C | 22.2°C | 34.8°C | 20.5°C | 92 mm | 74% | 3.7 m/s | 4.8 |
| 2022 | 29.4°C | 25.3°C | 21.3°C | 31.7°C | 19.4°C | 146 mm | 82% | 3 m/s | 4.8 |
| 2021 | 31.4°C | 26.7°C | 21.9°C | 35.2°C | 20.3°C | 43 mm | 75% | 3.8 m/s | 4.6 |
| 2020 🌧️ | 28.9°C | 25.3°C | 21.7°C | 32.4°C | 19.8°C | 242 mm | 84% | 3.2 m/s | 4.5 |
| 2019 | 30.3°C | 26.3°C | 22.2°C | 33.1°C | 21.0°C | 182 mm | 79% | 3.6 m/s | 4.4 |
| 2018 | 33.4°C | 27.6°C | 21.8°C | 36.4°C | 20.3°C | 71 mm | 66% | 2.8 m/s | 5.5 |
| 2017 | 30.5°C | 26.3°C | 22.1°C | 33.7°C | 20.5°C | 143 mm | 78% | 2.4 m/s | 4.9 |
| 2016 | 31.1°C | 26.2°C | 21.3°C | 34.2°C | 20.3°C | 82 mm | 74% | 3.8 m/s | 4.2 |
| 2015 | 30.7°C | 26.2°C | 21.7°C | 34.7°C | 20.4°C | 122 mm | 77% | 2.7 m/s | 5.4 |
| 2014 | 30.7°C | 26.1°C | 21.6°C | 32.8°C | 20.7°C | 84 mm | 77% | 3.5 m/s | 5.1 |
| 2013 | 29.8°C | 25.6°C | 21.4°C | 32.1°C | 19.3°C | 169 mm | 80% | 3 m/s | 5 |
| 2012 | 32.3°C | 27.1°C | 21.8°C | 34.8°C | 20.5°C | 80 mm | 71% | 3.6 m/s | 5.3 |
| 2011 | 33.2°C | 27.5°C | 21.8°C | 36.4°C | 20.1°C | 18 mm | 68% | 4.1 m/s | 5.3 |
| 2010 | 29.6°C | 25.5°C | 21.4°C | 31.0°C | 19.9°C | 85 mm | 81% | 3.1 m/s | 5 |
| 2009 | 29.9°C | 25.9°C | 22.0°C | 32.9°C | 20.7°C | 214 mm | 80% | 2.9 m/s | 4.9 |
| 2008 | 29.6°C | 25.4°C | 21.2°C | 31.4°C | 19.4°C | 109 mm | 80% | 3 m/s | 5.2 |
| 2007 | 29.0°C | 25.2°C | 21.5°C | 31.2°C | 19.5°C | 202 mm | 83% | 3.1 m/s | 4.6 |
| 2006 | 31.7°C | 26.9°C | 22.0°C | 35.9°C | 20.4°C | 116 mm | 74% | 3.1 m/s | 5.4 |
| 2005 | 29.0°C | 25.3°C | 21.7°C | 30.3°C | 20.7°C | 123 mm | 83% | 3.2 m/s | 4.7 |
| 2004 | 30.9°C | 26.3°C | 21.6°C | 34.7°C | 19.3°C | 111 mm | 75% | 2.8 m/s | 5.2 |
| 2003 🔥 | 33.9°C | 28.1°C | 22.3°C | 36.2°C | 21.6°C | 28 mm | 65% | 4 m/s | 5.3 |
| 2002 | 34.0°C | 28.0°C | 22.0°C | 36.9°C | 20.4°C | 49 mm | 65% | 3.5 m/s | 5.8 |
| 2001 | 31.0°C | 26.5°C | 22.0°C | 33.9°C | 20.6°C | 174 mm | 75% | 2.4 m/s | 5.5 |
| 2000 | 31.7°C | 26.7°C | 21.7°C | 34.7°C | 20.4°C | 105 mm | 75% | 2.8 m/s | 5.4 |
| 1999 | 32.2°C | 26.9°C | 21.6°C | 36.2°C | 20.2°C | 149 mm | 71% | 3.5 m/s | 5.3 |
| 1998 | 29.4°C | 25.6°C | 21.7°C | 31.7°C | 20.3°C | 140 mm | 82% | 3.2 m/s | 5 |
| 1997 | 31.8°C | 26.8°C | 21.7°C | 34.9°C | 20.3°C | 82 mm | 73% | 2.9 m/s | 5.3 |
| 1996 | 29.2°C | 25.2°C | 21.3°C | 31.3°C | 19.9°C | 192 mm | 81% | 2.8 m/s | 5.2 |
| 1995 | 30.2°C | 25.9°C | 21.5°C | 32.1°C | 20.5°C | 90 mm | 78% | 3.4 m/s | 5.1 |
| 1994 | 32.4°C | 26.6°C | 20.8°C | 35.9°C | 18.2°C | 48 mm | 67% | 3.8 m/s | 5.6 |
| 1993 | 30.4°C | 25.7°C | 21.0°C | 33.3°C | 19.4°C | 81 mm | 76% | 3.5 m/s | 5.8 |
| 1992 | 32.0°C | 26.8°C | 21.6°C | 35.1°C | 20.7°C | 53 mm | 70% | 3.2 m/s | 5.2 |
| 1991 | 32.4°C | 27.1°C | 21.8°C | 35.3°C | 20.6°C | 82 mm | 69% | 2.7 m/s | 5.1 |
| 1990 | 33.3°C | 27.6°C | 21.9°C | 36.4°C | 20.3°C | 51 mm | 64% | 3.7 m/s | 5.2 |
| 1989 | 30.7°C | 25.9°C | 21.2°C | 33.9°C | 19.3°C | 145 mm | 75% | 2.9 m/s | 4.9 |
| 1988 ❄️ | 28.5°C | 24.8°C | 21.2°C | 31.1°C | 19.8°C | 185 mm | 84% | 3.3 m/s | 4.9 |
| 1987 | 31.9°C | 27.0°C | 22.1°C | 35.1°C | 20.2°C | 137 mm | 73% | 2.8 m/s | 5.7 |
| 1986 | 31.9°C | 26.7°C | 21.6°C | 35.0°C | 19.5°C | 122 mm | 71% | 2.8 m/s | 5.6 |
| 1985 | 32.9°C | 27.1°C | 21.4°C | 37.3°C | 19.4°C | 37 mm | 66% | 3.3 m/s | 5.1 |
| 1984 | 32.3°C | 26.8°C | 21.2°C | 35.1°C | 19.5°C | 108 mm | 69% | 3.1 m/s | 5.6 |
| 1983 | 30.7°C | 26.0°C | 21.3°C | 32.7°C | 19.4°C | 93 mm | 76% | 4.1 m/s | — |
| 1982 | 32.0°C | 26.6°C | 21.3°C | 36.4°C | 18.0°C | 110 mm | 69% | 3.6 m/s | — |
| 1981 | 28.7°C | 24.9°C | 21.2°C | 31.5°C | 19.9°C | 226 mm | 83% | 3 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 21.6°C (mean 26.3°C), based on 45 years of NASA POWER data.
September averages 113 mm of rainfall in Ballari, a relatively wet time of year. The wettest on record was 242 mm in 2020.
The hottest September reached 37.3°C in 1985. The coldest dipped to 18°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have fallen by about 0.1°C — but days and nights have moved in opposite directions. Overnight lows rose from 21.3°C to 21.8°C while daytime highs eased from 31.3°C to 30.6°C, narrowing the gap between day and night.
September is one of the cooler months of the year in Ballari and a relatively wet time of year, so plan for around 31°C daytime highs and 21.6°C at night.
Not quite — September is the 5th coolest month in Ballari, averaging 26.3°C.
For September in Ballari, pack light, breathable clothing and sun protection, with typical highs of 31°C and lows of 21.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 75% — quite humid.
Average wind speed in September is 3.2 m/s. The windiest September on record averaged 4.1 m/s (1983).
The wettest September on record was 2020 with 242 mm. On average, September sees 113 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 Ballari 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.
